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Merge remote-tracking branch 'upstream/master' into craedel-enterprise-patterns/front-controller

This commit is contained in:
Christian Rädel 2016-09-25 11:13:33 +02:00
parent 51c438b469 5b29f1bc81
commit 3b948c9b8b
239 changed files with 6802 additions and 3209 deletions
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13
core-java-9/.gitignore vendored Normal file
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear

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core-java-9/README.md Normal file
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=========
## Core Java 9 Examples
http://inprogress.baeldung.com/java-9-new-features/

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core-java-9/pom.xml Normal file
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<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>core-java9</artifactId>
<version>0.2-SNAPSHOT</version>
<name>core-java9</name>
<pluginRepositories>
<pluginRepository>
<id>apache.snapshots</id>
<url>http://repository.apache.org/snapshots/</url>
</pluginRepository>
</pluginRepositories>
<dependencies>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>${org.hamcrest.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>core-java-9</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.9</source>
<target>1.9</target>
<verbose>true</verbose>
<!-- <executable>C:\develop\jdks\jdk-9_ea122\bin\javac</executable>
<compilerVersion>1.9</compilerVersion> -->
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
</plugin>
</plugins>
</build>
<properties>
<!-- logging -->
<org.slf4j.version>1.7.13</org.slf4j.version>
<logback.version>1.0.13</logback.version>
<!-- maven plugins -->
<!--
<maven-war-plugin.version>2.6</maven-war-plugin.version>
maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version> -->
<maven-compiler-plugin.version>3.6-jigsaw-SNAPSHOT</maven-compiler-plugin.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
<!-- testing -->
<org.hamcrest.version>1.3</org.hamcrest.version>
<junit.version>4.12</junit.version>
<mockito.version>1.10.19</mockito.version>
</properties>
</project>

13
core-java-9/src/main/java/.gitignore vendored Normal file
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear

23
core-java-9/src/main/java/com/baeldung/java9/language/PrivateInterface.java Normal file
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package com.baeldung.java9.language;
public interface PrivateInterface {
private static String staticPrivate() {
return "static private";
}
private String instancePrivate() {
return "instance private";
}
public default void check(){
String result = staticPrivate();
if (!result.equals("static private"))
throw new AssertionError("Incorrect result for static private interface method");
PrivateInterface pvt = new PrivateInterface() {
};
result = pvt.instancePrivate();
if (!result.equals("instance private"))
throw new AssertionError("Incorrect result for instance private interface method");
}
}

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core-java-9/src/main/java/com/baeldung/java9/process/ProcessUtils.java Normal file
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package com.baeldung.java9.process;
import java.io.File;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.time.Duration;
import java.time.Instant;
import java.util.stream.Stream;
public class ProcessUtils {
public static String getClassPath(){
String cp = System.getProperty("java.class.path");
System.out.println("ClassPath is "+cp);
return cp;
}
public static File getJavaCmd() throws IOException{
String javaHome = System.getProperty("java.home");
File javaCmd;
if(System.getProperty("os.name").startsWith("Win")){
javaCmd = new File(javaHome, "bin/java.exe");
}else{
javaCmd = new File(javaHome, "bin/java");
}
if(javaCmd.canExecute()){
return javaCmd;
}else{
throw new UnsupportedOperationException(javaCmd.getCanonicalPath() + " is not executable");
}
}
public static String getMainClass(){
return System.getProperty("sun.java.command");
}
public static String getSystemProperties(){
StringBuilder sb = new StringBuilder();
System.getProperties().forEach((s1, s2) -> sb.append(s1 +" - "+ s2) );
return sb.toString();
}
}

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core-java-9/src/main/java/com/baeldung/java9/process/ServiceMain.java Normal file
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package com.baeldung.java9.process;
import java.util.Optional;
public class ServiceMain {
public static void main(String[] args) throws InterruptedException {
ProcessHandle thisProcess = ProcessHandle.current();
long pid = thisProcess.getPid();
Optional<String[]> opArgs = Optional.ofNullable(args);
String procName = opArgs.map(str -> str.length > 0 ? str[0] : null).orElse(System.getProperty("sun.java.command"));
for (int i = 0; i < 10000; i++) {
System.out.println("Process " + procName + " with ID " + pid + " is running!");
Thread.sleep(10000);
}
}
}

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core-java-9/src/main/resources/logback.xml Normal file
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<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>web - %date [%thread] %-5level %logger{36} - %message%n
</pattern>
</encoder>
</appender>
<!-- <logger name="org.springframework" level="WARN" /> -->
<root level="INFO">
<appender-ref ref="STDOUT"/>
</root>
</configuration>

58
core-java-9/src/test/java/com/baeldung/java9/Java9OptionalsStreamTest.java Normal file
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package com.baeldung.java8;
import static org.junit.Assert.assertEquals;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.junit.Before;
import org.junit.Test;
public class Java9OptionalsStreamTest {
private static List<Optional<String>> listOfOptionals = Arrays.asList(Optional.empty(), Optional.of("foo"), Optional.empty(), Optional.of("bar"));
@Test
public void filterOutPresentOptionalsWithFilter() {
assertEquals(4, listOfOptionals.size());
List<String> filteredList = listOfOptionals.stream()
.filter(Optional::isPresent)
.map(Optional::get)
.collect(Collectors.toList());
assertEquals(2, filteredList.size());
assertEquals("foo", filteredList.get(0));
assertEquals("bar", filteredList.get(1));
}
@Test
public void filterOutPresentOptionalsWithFlatMap() {
assertEquals(4, listOfOptionals.size());
List<String> filteredList = listOfOptionals.stream()
.flatMap(o -> o.isPresent() ? Stream.of(o.get()) : Stream.empty())
.collect(Collectors.toList());
assertEquals(2, filteredList.size());
assertEquals("foo", filteredList.get(0));
assertEquals("bar", filteredList.get(1));
}
@Test
public void filterOutPresentOptionalsWithJava9() {
assertEquals(4, listOfOptionals.size());
List<String> filteredList = listOfOptionals.stream()
.flatMap(Optional::stream)
.collect(Collectors.toList());
assertEquals(2, filteredList.size());
assertEquals("foo", filteredList.get(0));
assertEquals("bar", filteredList.get(1));
}
}

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core-java-9/src/test/java/com/baeldung/java9/MultiResultionImageTest.java Normal file
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package com.baeldung.java9;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;
import java.awt.Image;
import java.awt.image.BaseMultiResolutionImage;
import java.awt.image.BufferedImage;
import java.awt.image.MultiResolutionImage;
import java.util.List;
import org.junit.Test;
public class MultiResultionImageTest {
@Test
public void baseMultiResImageTest() {
int baseIndex = 1;
int length = 4;
BufferedImage[] resolutionVariants = new BufferedImage[length];
for (int i = 0; i < length; i++) {
resolutionVariants[i] = createImage(i);
}
MultiResolutionImage bmrImage = new BaseMultiResolutionImage(baseIndex, resolutionVariants);
List<Image> rvImageList = bmrImage.getResolutionVariants();
assertEquals("MultiResoltion Image shoudl contain the same number of resolution variants!", rvImageList.size(), length);
for (int i = 0; i < length; i++) {
int imageSize = getSize(i);
Image testRVImage = bmrImage.getResolutionVariant(imageSize, imageSize);
assertSame("Images should be the same", testRVImage, resolutionVariants[i]);
}
}
private static int getSize(int i) {
return 8 * (i + 1);
}
private static BufferedImage createImage(int i) {
return new BufferedImage(getSize(i), getSize(i),
BufferedImage.TYPE_INT_RGB);
}
}

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core-java-9/src/test/java/com/baeldung/java9/httpclient/SimpleHttpRequestsTest.java Normal file
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package com.baeldung.java9.httpclient;
import static java.net.HttpURLConnection.HTTP_OK;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.net.CookieManager;
import java.net.CookiePolicy;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.http.HttpClient;
import java.net.http.HttpHeaders;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.security.NoSuchAlgorithmException;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLParameters;
import org.junit.Before;
import org.junit.Test;
public class SimpleHttpRequestsTest {
private URI httpURI;
@Before
public void init() throws URISyntaxException {
httpURI = new URI("http://www.baeldung.com/");
}
@Test
public void quickGet() throws IOException, InterruptedException, URISyntaxException {
HttpRequest request = HttpRequest.create( httpURI ).GET();
HttpResponse response = request.response();
int responseStatusCode = response.statusCode();
String responseBody = response.body(HttpResponse.asString());
assertTrue("Get response status code is bigger then 400", responseStatusCode < 400);
}
@Test
public void asynchronousGet() throws URISyntaxException, IOException, InterruptedException, ExecutionException{
HttpRequest request = HttpRequest.create(httpURI).GET();
long before = System.currentTimeMillis();
CompletableFuture<HttpResponse> futureResponse = request.responseAsync();
futureResponse.thenAccept( response -> {
String responseBody = response.body(HttpResponse.asString());
});
HttpResponse resp = futureResponse.get();
HttpHeaders hs = resp.headers();
assertTrue("There should be more then 1 header.", hs.map().size() >1);
}
@Test
public void postMehtod() throws URISyntaxException, IOException, InterruptedException {
HttpRequest.Builder requestBuilder = HttpRequest.create(httpURI);
requestBuilder.body(HttpRequest.fromString("param1=foo,param2=bar")).followRedirects(HttpClient.Redirect.SECURE);
HttpRequest request = requestBuilder.POST();
HttpResponse response = request.response();
int statusCode = response.statusCode();
assertTrue("HTTP return code", statusCode == HTTP_OK);
}
@Test
public void configureHttpClient() throws NoSuchAlgorithmException, URISyntaxException, IOException, InterruptedException{
CookieManager cManager = new CookieManager();
cManager.setCookiePolicy(CookiePolicy.ACCEPT_ORIGINAL_SERVER);
SSLParameters sslParam = new SSLParameters (new String[] { "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" }, new String[] { "TLSv1.2" });
HttpClient.Builder hcBuilder = HttpClient.create();
hcBuilder.cookieManager(cManager).sslContext(SSLContext.getDefault()).sslParameters(sslParam);
HttpClient httpClient = hcBuilder.build();
HttpRequest.Builder reqBuilder = httpClient.request(new URI("https://www.facebook.com"));
HttpRequest request = reqBuilder.followRedirects(HttpClient.Redirect.ALWAYS).GET();
HttpResponse response = request.response();
int statusCode = response.statusCode();
assertTrue("HTTP return code", statusCode == HTTP_OK);
}
SSLParameters getDefaultSSLParameters() throws NoSuchAlgorithmException{
SSLParameters sslP1 = SSLContext.getDefault().getSupportedSSLParameters();
String [] proto = sslP1.getApplicationProtocols();
String [] cifers = sslP1.getCipherSuites();
System.out.println(printStringArr(proto));
System.out.println(printStringArr(cifers));
return sslP1;
}
String printStringArr(String ... args ){
if(args == null){
return null;
}
StringBuilder sb = new StringBuilder();
for (String s : args){
sb.append(s);
sb.append("\n");
}
return sb.toString();
}
String printHeaders(HttpHeaders h){
if(h == null){
return null;
}
StringBuilder sb = new StringBuilder();
Map<String, List<String>> hMap = h.map();
for(String k : hMap.keySet()){
sb.append(k).append(":");
List<String> l = hMap.get(k);
if( l != null ){
l.forEach( s -> { sb.append(s).append(","); } );
}
sb.append("\n");
}
return sb.toString();
}
}

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core-java-9/src/test/java/com/baeldung/java9/language/DiamondTest.java Normal file
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package com.baeldung.java9.language;
import org.junit.Test;
public class DiamondTest {
static class FooClass<X> {
FooClass(X x) {
}
<Z> FooClass(X x, Z z) {
}
}
@Test
public void diamondTest() {
FooClass<Integer> fc = new FooClass<>(1) {
};
FooClass<? extends Integer> fc0 = new FooClass<>(1) {
};
FooClass<?> fc1 = new FooClass<>(1) {
};
FooClass<? super Integer> fc2 = new FooClass<>(1) {
};
FooClass<Integer> fc3 = new FooClass<>(1, "") {
};
FooClass<? extends Integer> fc4 = new FooClass<>(1, "") {
};
FooClass<?> fc5 = new FooClass<>(1, "") {
};
FooClass<? super Integer> fc6 = new FooClass<>(1, "") {
};
}
}

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core-java-9/src/test/java/com/baeldung/java9/language/PrivateInterfaceTest.java Normal file
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package com.baeldung.java9.language;
import com.baeldung.java9.language.PrivateInterface;
import org.junit.Test;
public class PrivateInterfaceTest {
@Test
public void test() {
PrivateInterface piClass = new PrivateInterface() {
};
piClass.check();
}
}

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core-java-9/src/test/java/com/baeldung/java9/language/TryWithResourcesTest.java Normal file
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package com.baeldung.java9.language;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class TryWithResourcesTest {
static int closeCount = 0;
static class MyAutoCloseable implements AutoCloseable{
final FinalWrapper finalWrapper = new FinalWrapper();
public void close() {
closeCount++;
}
static class FinalWrapper {
public final AutoCloseable finalCloseable = new AutoCloseable() {
@Override
public void close() throws Exception {
closeCount++;
}
};
}
}
@Test
public void tryWithResourcesTest() {
MyAutoCloseable mac = new MyAutoCloseable();
try (mac) {
assertEquals("Expected and Actual does not match", 0, closeCount);
}
try (mac.finalWrapper.finalCloseable) {
assertEquals("Expected and Actual does not match", 1, closeCount);
} catch (Exception ex) {
}
try (new MyAutoCloseable() { }.finalWrapper.finalCloseable) {
assertEquals("Expected and Actual does not match", 2, closeCount);
} catch (Exception ex) {
}
try ((closeCount > 0 ? mac : new MyAutoCloseable()).finalWrapper.finalCloseable) {
assertEquals("Expected and Actual does not match", 3, closeCount);
} catch (Exception ex) {
}
try {
throw new CloseableException();
} catch (CloseableException ex) {
try (ex) {
assertEquals("Expected and Actual does not match", 4, closeCount);
}
}
assertEquals("Expected and Actual does not match", 5, closeCount);
}
static class CloseableException extends Exception implements AutoCloseable {
@Override
public void close() {
closeCount++;
}
}
}

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core-java-9/src/test/java/com/baeldung/java9/process/ProcessApi.java Normal file
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package com.baeldung.java9.process;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.time.Duration;
import java.time.Instant;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.stream.Stream;
import org.junit.Before;
import org.junit.Test;
import junit.framework.Assert;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class ProcessApi {
@Before
public void init() {
}
@Test
public void processInfoExample()throws NoSuchAlgorithmException{
ProcessHandle self = ProcessHandle.current();
long PID = self.getPid();
ProcessHandle.Info procInfo = self.info();
Optional<String[]> args = procInfo.arguments();
Optional<String> cmd = procInfo.commandLine();
Optional<Instant> startTime = procInfo.startInstant();
Optional<Duration> cpuUsage = procInfo.totalCpuDuration();
waistCPU();
System.out.println("Args "+ args);
System.out.println("Command " +cmd.orElse("EmptyCmd"));
System.out.println("Start time: "+ startTime.get().toString());
System.out.println(cpuUsage.get().toMillis());
Stream<ProcessHandle> allProc = ProcessHandle.current().children();
allProc.forEach(p -> {
System.out.println("Proc "+ p.getPid());
});
}
@Test
public void createAndDestroyProcess() throws IOException, InterruptedException{
int numberOfChildProcesses = 5;
for(int i=0; i < numberOfChildProcesses; i++){
createNewJVM(ServiceMain.class, i).getPid();
}
Stream<ProcessHandle> childProc = ProcessHandle.current().children();
assertEquals( childProc.count(), numberOfChildProcesses);
childProc = ProcessHandle.current().children();
childProc.forEach(processHandle -> {
assertTrue("Process "+ processHandle.getPid() +" should be alive!", processHandle.isAlive());
CompletableFuture<ProcessHandle> onProcExit = processHandle.onExit();
onProcExit.thenAccept(procHandle -> {
System.out.println("Process with PID "+ procHandle.getPid() + " has stopped");
});
});
Thread.sleep(10000);
childProc = ProcessHandle.current().children();
childProc.forEach(procHandle -> {
assertTrue("Could not kill process "+procHandle.getPid(), procHandle.destroy());
});
Thread.sleep(5000);
childProc = ProcessHandle.current().children();
childProc.forEach(procHandle -> {
assertFalse("Process "+ procHandle.getPid() +" should not be alive!", procHandle.isAlive());
});
}
private Process createNewJVM(Class mainClass, int number) throws IOException{
ArrayList<String> cmdParams = new ArrayList<String>(5);
cmdParams.add(ProcessUtils.getJavaCmd().getAbsolutePath());
cmdParams.add("-cp");
cmdParams.add(ProcessUtils.getClassPath());
cmdParams.add(mainClass.getName());
cmdParams.add("Service "+ number);
ProcessBuilder myService = new ProcessBuilder(cmdParams);
myService.inheritIO();
return myService.start();
}
private void waistCPU() throws NoSuchAlgorithmException{
ArrayList<Integer> randArr = new ArrayList<Integer>(4096);
SecureRandom sr = SecureRandom.getInstanceStrong();
Duration somecpu = Duration.ofMillis(4200L);
Instant end = Instant.now().plus(somecpu);
while (Instant.now().isBefore(end)) {
//System.out.println(sr.nextInt());
randArr.add( sr.nextInt() );
}
}
}

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core-java-9/src/test/resources/.gitignore vendored Normal file
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear

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core-java/src/main/java/com/baeldung/java/reflection/Animal.java Normal file
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package com.baeldung.java.reflection;
public abstract class Animal implements Eating {
public static final String CATEGORY = "domestic";
private String name;
public Animal(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
protected abstract String getSound();
}

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core-java/src/main/java/com/baeldung/java/reflection/Bird.java Normal file
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package com.baeldung.java.reflection;
public class Bird extends Animal {
private boolean walks;
public Bird() {
super("bird");
}
public Bird(String name, boolean walks) {
super(name);
setWalks(walks);
}
public Bird(String name) {
super(name);
}
@Override
public String eats() {
return "grains";
}
@Override
protected String getSound() {
return "chaps";
}
public boolean walks() {
return walks;
}
public void setWalks(boolean walks) {
this.walks = walks;
}
}

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core-java/src/main/java/com/baeldung/java/reflection/Eating.java Normal file
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package com.baeldung.java.reflection;
public interface Eating {
String eats();
}

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core-java/src/main/java/com/baeldung/java/reflection/Goat.java Normal file
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package com.baeldung.java.reflection;
public class Goat extends Animal implements Locomotion {
public Goat(String name) {
super(name);
}
@Override
protected String getSound() {
return "bleat";
}
@Override
public String getLocomotion() {
return "walks";
}
@Override
public String eats() {
return "grass";
}
}

5
core-java/src/main/java/com/baeldung/java/reflection/Locomotion.java Normal file
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package com.baeldung.java.reflection;
public interface Locomotion {
String getLocomotion();
}

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core-java/src/main/java/com/baeldung/java/reflection/Person.java Normal file
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package com.baeldung.java.reflection;
public class Person {
private String name;
private int age;
}

326
core-java/src/test/java/com/baeldung/java/reflection/ReflectionTest.java Normal file
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package com.baeldung.java.reflection;
import org.junit.Test;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;
import static org.junit.Assert.*;
public class ReflectionTest {
@Test
public void givenObject_whenGetsFieldNamesAtRuntime_thenCorrect() {
Object person = new Person();
Field[] fields = person.getClass().getDeclaredFields();
List<String> actualFieldNames = getFieldNames(fields);
assertTrue(Arrays.asList("name", "age")
.containsAll(actualFieldNames));
}
@Test
public void givenObject_whenGetsClassName_thenCorrect() {
Object goat = new Goat("goat");
Class<?> clazz = goat.getClass();
assertEquals("Goat", clazz.getSimpleName());
assertEquals("com.baeldung.java.reflection.Goat", clazz.getName());
assertEquals("com.baeldung.java.reflection.Goat", clazz.getCanonicalName());
}
@Test
public void givenClassName_whenCreatesObject_thenCorrect()
throws ClassNotFoundException {
Class<?> clazz = Class.forName("com.baeldung.java.reflection.Goat");
assertEquals("Goat", clazz.getSimpleName());
assertEquals("com.baeldung.java.reflection.Goat", clazz.getName());
assertEquals("com.baeldung.java.reflection.Goat", clazz.getCanonicalName());
}
@Test
public void givenClass_whenRecognisesModifiers_thenCorrect()
throws ClassNotFoundException {
Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
int goatMods = goatClass.getModifiers();
int animalMods = animalClass.getModifiers();
assertTrue(Modifier.isPublic(goatMods));
assertTrue(Modifier.isAbstract(animalMods));
assertTrue(Modifier.isPublic(animalMods));
}
@Test
public void givenClass_whenGetsPackageInfo_thenCorrect() {
Goat goat = new Goat("goat");
Class<?> goatClass = goat.getClass();
Package pkg = goatClass.getPackage();
assertEquals("com.baeldung.java.reflection", pkg.getName());
}
@Test
public void givenClass_whenGetsSuperClass_thenCorrect() {
Goat goat = new Goat("goat");
String str = "any string";
Class<?> goatClass = goat.getClass();
Class<?> goatSuperClass = goatClass.getSuperclass();
assertEquals("Animal", goatSuperClass.getSimpleName());
assertEquals("Object", str.getClass().getSuperclass().getSimpleName());
}
@Test
public void givenClass_whenGetsImplementedInterfaces_thenCorrect()
throws ClassNotFoundException {
Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
Class<?>[] goatInterfaces = goatClass.getInterfaces();
Class<?>[] animalInterfaces = animalClass.getInterfaces();
assertEquals(1, goatInterfaces.length);
assertEquals(1, animalInterfaces.length);
assertEquals("Locomotion", goatInterfaces[0].getSimpleName());
assertEquals("Eating", animalInterfaces[0].getSimpleName());
}
@Test
public void givenClass_whenGetsConstructor_thenCorrect()
throws ClassNotFoundException {
Class<?> goatClass = Class.forName("com.baeldung.java.reflection.Goat");
Constructor<?>[] constructors = goatClass.getConstructors();
assertEquals(1, constructors.length);
assertEquals("com.baeldung.java.reflection.Goat", constructors[0].getName());
}
@Test
public void givenClass_whenGetsFields_thenCorrect()
throws ClassNotFoundException {
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
Field[] fields = animalClass.getDeclaredFields();
List<String> actualFields = getFieldNames(fields);
assertEquals(2, actualFields.size());
assertTrue(actualFields.containsAll(Arrays.asList("name", "CATEGORY")));
}
@Test
public void givenClass_whenGetsMethods_thenCorrect()
throws ClassNotFoundException {
Class<?> animalClass = Class.forName("com.baeldung.java.reflection.Animal");
Method[] methods = animalClass.getDeclaredMethods();
List<String> actualMethods = getMethodNames(methods);
assertEquals(4, actualMethods.size());
assertTrue(actualMethods.containsAll(Arrays.asList("getName",
"setName", "getSound")));
}
@Test
public void givenClass_whenGetsAllConstructors_thenCorrect()
throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Constructor<?>[] constructors = birdClass.getConstructors();
assertEquals(3, constructors.length);
}
@Test
public void givenClass_whenGetsEachConstructorByParamTypes_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Constructor<?> cons1 = birdClass.getConstructor();
Constructor<?> cons2 = birdClass.getConstructor(String.class);
Constructor<?> cons3 = birdClass.getConstructor(String.class,
boolean.class);
}
@Test
public void givenClass_whenInstantiatesObjectsAtRuntime_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Constructor<?> cons1 = birdClass.getConstructor();
Constructor<?> cons2 = birdClass.getConstructor(String.class);
Constructor<?> cons3 = birdClass.getConstructor(String.class,
boolean.class);
Bird bird1 = (Bird) cons1.newInstance();
Bird bird2 = (Bird) cons2.newInstance("Weaver bird");
Bird bird3 = (Bird) cons3.newInstance("dove", true);
assertEquals("bird", bird1.getName());
assertEquals("Weaver bird", bird2.getName());
assertEquals("dove", bird3.getName());
assertFalse(bird1.walks());
assertTrue(bird3.walks());
}
@Test
public void givenClass_whenGetsPublicFields_thenCorrect()
throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field[] fields = birdClass.getFields();
assertEquals(1, fields.length);
assertEquals("CATEGORY", fields[0].getName());
}
@Test
public void givenClass_whenGetsPublicFieldByName_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field field = birdClass.getField("CATEGORY");
assertEquals("CATEGORY", field.getName());
}
@Test
public void givenClass_whenGetsDeclaredFields_thenCorrect()
throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field[] fields = birdClass.getDeclaredFields();
assertEquals(1, fields.length);
assertEquals("walks", fields[0].getName());
}
@Test
public void givenClass_whenGetsFieldsByName_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field field = birdClass.getDeclaredField("walks");
assertEquals("walks", field.getName());
}
@Test
public void givenClassField_whenGetsType_thenCorrect()
throws Exception {
Field field = Class.forName("com.baeldung.java.reflection.Bird")
.getDeclaredField("walks");
Class<?> fieldClass = field.getType();
assertEquals("boolean", fieldClass.getSimpleName());
}
@Test
public void givenClassField_whenSetsAndGetsValue_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Bird bird = (Bird) birdClass.newInstance();
Field field = birdClass.getDeclaredField("walks");
field.setAccessible(true);
assertFalse(field.getBoolean(bird));
assertFalse(bird.walks());
field.set(bird, true);
assertTrue(field.getBoolean(bird));
assertTrue(bird.walks());
}
@Test
public void givenClassField_whenGetsAndSetsWithNull_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Field field = birdClass.getField("CATEGORY");
field.setAccessible(true);
assertEquals("domestic", field.get(null));
}
@Test
public void givenClass_whenGetsAllPublicMethods_thenCorrect()
throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Method[] methods = birdClass.getMethods();
List<String> methodNames = getMethodNames(methods);
assertTrue(methodNames.containsAll(Arrays
.asList("equals", "notifyAll", "hashCode",
"walks", "eats", "toString")));
}
@Test
public void givenClass_whenGetsOnlyDeclaredMethods_thenCorrect()
throws ClassNotFoundException {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
List<String> actualMethodNames = getMethodNames(birdClass.getDeclaredMethods());
List<String> expectedMethodNames = Arrays.asList("setWalks", "walks", "getSound", "eats");
assertEquals(expectedMethodNames.size(), actualMethodNames.size());
assertTrue(expectedMethodNames.containsAll(actualMethodNames));
assertTrue(actualMethodNames.containsAll(expectedMethodNames));
}
@Test
public void givenMethodName_whenGetsMethod_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Method walksMethod = birdClass.getDeclaredMethod("walks");
Method setWalksMethod = birdClass.getDeclaredMethod("setWalks",
boolean.class);
assertFalse(walksMethod.isAccessible());
assertFalse(setWalksMethod.isAccessible());
walksMethod.setAccessible(true);
setWalksMethod.setAccessible(true);
assertTrue(walksMethod.isAccessible());
assertTrue(setWalksMethod.isAccessible());
}
@Test
public void givenMethod_whenInvokes_thenCorrect()
throws Exception {
Class<?> birdClass = Class.forName("com.baeldung.java.reflection.Bird");
Bird bird = (Bird) birdClass.newInstance();
Method setWalksMethod = birdClass.getDeclaredMethod("setWalks",
boolean.class);
Method walksMethod = birdClass.getDeclaredMethod("walks");
boolean walks = (boolean) walksMethod.invoke(bird);
assertFalse(walks);
assertFalse(bird.walks());
setWalksMethod.invoke(bird, true);
boolean walks2 = (boolean) walksMethod.invoke(bird);
assertTrue(walks2);
assertTrue(bird.walks());
}
private static List<String> getFieldNames(Field[] fields) {
List<String> fieldNames = new ArrayList<>();
for (Field field : fields)
fieldNames.add(field.getName());
return fieldNames;
}
private static List<String> getMethodNames(Method[] methods) {
List<String> methodNames = new ArrayList<>();
for (Method method : methods)
methodNames.add(method.getName());
return methodNames;
}
}

80
core-java/src/test/java/org/baeldung/java/collections/ArrayListTest.java
View File

@ -1,63 +1,65 @@
package org.baeldung.java.collections;
import com.google.common.collect.Sets;
import org.junit.Before;
import org.junit.Test;
import java.util.*;
import java.util.stream.*;
import static java.util.stream.Collectors.*;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.core.IsNot.not;
import static org.junit.Assert.*;
public class ArrayListTest {
List<String> stringsToSearch;
private List<String> stringsToSearch;
@Before
public void setUp() {
List<String> xs = LongStream.range(0, 16)
.boxed()
.map(Long::toHexString)
.collect(Collectors.toList());
stringsToSearch = new ArrayList<>(xs);
stringsToSearch.addAll(xs);
List<String> list = LongStream.range(0, 16)
.boxed()
.map(Long::toHexString)
.collect(toCollection(ArrayList::new));
stringsToSearch = new ArrayList<>(list);
stringsToSearch.addAll(list);
}
@Test
public void givenNewArrayList_whenCheckCapacity_thenDefaultValue() {
List<String> xs = new ArrayList<>();
assertTrue(xs.isEmpty());
List<String> list = new ArrayList<>();
assertTrue(list.isEmpty());
}
@Test
public void givenCollection_whenProvideItToArrayListCtor_thenArrayListIsPopulatedWithItsElements() {
Collection<Integer> numbers =
IntStream.range(0, 10).boxed().collect(Collectors.toSet());
IntStream.range(0, 10).boxed().collect(toSet());
List<Integer> xs = new ArrayList<>(numbers);
assertEquals(10, xs.size());
assertTrue(numbers.containsAll(xs));
List<Integer> list = new ArrayList<>(numbers);
assertEquals(10, list.size());
assertTrue(numbers.containsAll(list));
}
@Test
public void givenElement_whenAddToArrayList_thenIsAdded() {
List<Long> xs = new ArrayList<>();
List<Long> list = new ArrayList<>();
xs.add(1L);
xs.add(2L);
xs.add(1, 3L);
list.add(1L);
list.add(2L);
list.add(1, 3L);
assertThat(Arrays.asList(1L, 3L, 2L), equalTo(xs));
assertThat(Arrays.asList(1L, 3L, 2L), equalTo(list));
}
@Test
public void givenCollection_whenAddToArrayList_thenIsAdded() {
List<Long> xs = new ArrayList<>(Arrays.asList(1L, 2L, 3L));
Collection<Long> ys = LongStream.range(4, 10).boxed().collect(Collectors.toList());
xs.addAll(0, ys);
List<Long> list = new ArrayList<>(Arrays.asList(1L, 2L, 3L));
LongStream.range(4, 10).boxed()
.collect(collectingAndThen(toCollection(ArrayList::new), ys -> list.addAll(0, ys)));
assertThat(Arrays.asList(4L, 5L, 6L, 7L, 8L, 9L, 1L, 2L, 3L), equalTo(xs));
assertThat(Arrays.asList(4L, 5L, 6L, 7L, 8L, 9L, 1L, 2L, 3L), equalTo(list));
}
@Test
@ -87,9 +89,9 @@ public class ArrayListTest {
Set<String> matchingStrings = new HashSet<>(Arrays.asList("a", "c", "9"));
List<String> result = stringsToSearch
.stream()
.filter(matchingStrings::contains)
.collect(Collectors.toList());
.stream()
.filter(matchingStrings::contains)
.collect(toCollection(ArrayList::new));
assertEquals(6, result.size());
}
@ -104,37 +106,33 @@ public class ArrayListTest {
@Test
public void givenIndex_whenRemove_thenCorrectElementRemoved() {
List<Integer> xs = new ArrayList<>(
IntStream.range(0, 10).boxed().collect(Collectors.toList())
);
Collections.reverse(xs);
List<Integer> list = IntStream.range(0, 10).boxed().collect(toCollection(ArrayList::new));
Collections.reverse(list);
xs.remove(0);
assertThat(xs.get(0), equalTo(8));
list.remove(0);
assertThat(list.get(0), equalTo(8));
xs.remove(Integer.valueOf(0));
assertFalse(xs.contains(0));
list.remove(Integer.valueOf(0));
assertFalse(list.contains(0));
}
@Test
public void givenListIterator_whenReverseTraversal_thenRetrieveElementsInOppositeOrder() {
List<Integer> xs = new ArrayList<>(
IntStream.range(0, 10).boxed().collect(Collectors.toList())
);
ListIterator<Integer> it = xs.listIterator(xs.size());
List<Integer> result = new ArrayList<>(xs.size());
List<Integer> list = IntStream.range(0, 10).boxed().collect(toCollection(ArrayList::new));
ListIterator<Integer> it = list.listIterator(list.size());
List<Integer> result = new ArrayList<>(list.size());
while (it.hasPrevious()) {
result.add(it.previous());
}
Collections.reverse(xs);
assertThat(result, equalTo(xs));
Collections.reverse(list);
assertThat(result, equalTo(list));
}
@Test
public void givenCondition_whenIterateArrayList_thenRemoveAllElementsSatisfyingCondition() {
Set<String> matchingStrings
= new HashSet<>(Arrays.asList("a", "b", "c", "d", "e", "f"));
= Sets.newHashSet("a", "b", "c", "d", "e", "f");
Iterator<String> it = stringsToSearch.iterator();
while (it.hasNext()) {

100
eclipse/src/main/java/org/baeldung/equalshashcode/entities/ComplexClass.java
View File

@ -5,63 +5,59 @@ import java.util.HashSet;
public class ComplexClass {
private ArrayList<?> genericArrayList;
private HashSet<Integer> integerHashSet;
private ArrayList<?> genericArrayList;
private HashSet<Integer> integerHashSet;
public ComplexClass(ArrayList<?> genericArrayList,
HashSet<Integer> integerHashSet) {
super();
this.genericArrayList = genericArrayList;
this.integerHashSet = integerHashSet;
}
public ComplexClass(ArrayList<?> genericArrayList, HashSet<Integer> integerHashSet) {
super();
this.genericArrayList = genericArrayList;
this.integerHashSet = integerHashSet;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime
* result
+ ((genericArrayList == null) ? 0 : genericArrayList.hashCode());
result = prime * result
+ ((integerHashSet == null) ? 0 : integerHashSet.hashCode());
return result;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((genericArrayList == null) ? 0 : genericArrayList.hashCode());
result = prime * result + ((integerHashSet == null) ? 0 : integerHashSet.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof ComplexClass))
return false;
ComplexClass other = (ComplexClass) obj;
if (genericArrayList == null) {
if (other.genericArrayList != null)
return false;
} else if (!genericArrayList.equals(other.genericArrayList))
return false;
if (integerHashSet == null) {
if (other.integerHashSet != null)
return false;
} else if (!integerHashSet.equals(other.integerHashSet))
return false;
return true;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (!(obj instanceof ComplexClass))
return false;
ComplexClass other = (ComplexClass) obj;
if (genericArrayList == null) {
if (other.genericArrayList != null)
return false;
} else if (!genericArrayList.equals(other.genericArrayList))
return false;
if (integerHashSet == null) {
if (other.integerHashSet != null)
return false;
} else if (!integerHashSet.equals(other.integerHashSet))
return false;
return true;
}
protected ArrayList<?> getGenericArrayList() {
return genericArrayList;
}
protected ArrayList<?> getGenericArrayList() {
return genericArrayList;
}
protected void setGenericArrayList(ArrayList<?> genericArrayList) {
this.genericArrayList = genericArrayList;
}
protected void setGenericArrayList(ArrayList<?> genericArrayList) {
this.genericArrayList = genericArrayList;
}
protected HashSet<Integer> getIntegerHashSet() {
return integerHashSet;
}
protected HashSet<Integer> getIntegerHashSet() {
return integerHashSet;
}
protected void setIntegerHashSet(HashSet<Integer> integerHashSet) {
this.integerHashSet = integerHashSet;
}
protected void setIntegerHashSet(HashSet<Integer> integerHashSet) {
this.integerHashSet = integerHashSet;
}
}

84
eclipse/src/main/java/org/baeldung/equalshashcode/entities/PrimitiveClass.java
View File

@ -2,53 +2,53 @@ package org.baeldung.equalshashcode.entities;
public class PrimitiveClass {
private boolean primitiveBoolean;
private int primitiveInt;
private boolean primitiveBoolean;
private int primitiveInt;
public PrimitiveClass(boolean primitiveBoolean, int primitiveInt) {
super();
this.primitiveBoolean = primitiveBoolean;
this.primitiveInt = primitiveInt;
}
public PrimitiveClass(boolean primitiveBoolean, int primitiveInt) {
super();
this.primitiveBoolean = primitiveBoolean;
this.primitiveInt = primitiveInt;
}
protected boolean isPrimitiveBoolean() {
return primitiveBoolean;
}
protected boolean isPrimitiveBoolean() {
return primitiveBoolean;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (primitiveBoolean ? 1231 : 1237);
result = prime * result + primitiveInt;
return result;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (primitiveBoolean ? 1231 : 1237);
result = prime * result + primitiveInt;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
PrimitiveClass other = (PrimitiveClass) obj;
if (primitiveBoolean != other.primitiveBoolean)
return false;
if (primitiveInt != other.primitiveInt)
return false;
return true;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
PrimitiveClass other = (PrimitiveClass) obj;
if (primitiveBoolean != other.primitiveBoolean)
return false;
if (primitiveInt != other.primitiveInt)
return false;
return true;
}
protected void setPrimitiveBoolean(boolean primitiveBoolean) {
this.primitiveBoolean = primitiveBoolean;
}
protected void setPrimitiveBoolean(boolean primitiveBoolean) {
this.primitiveBoolean = primitiveBoolean;
}
protected int getPrimitiveInt() {
return primitiveInt;
}
protected int getPrimitiveInt() {
return primitiveInt;
}
protected void setPrimitiveInt(int primitiveInt) {
this.primitiveInt = primitiveInt;
}
protected void setPrimitiveInt(int primitiveInt) {
this.primitiveInt = primitiveInt;
}
}

98
eclipse/src/main/java/org/baeldung/equalshashcode/entities/Rectangle.java
View File

@ -1,62 +1,60 @@
package org.baeldung.equalshashcode.entities;
public class Rectangle extends Shape {
private double width;
private double length;
private double width;
private double length;
public Rectangle(double width, double length) {
this.width = width;
this.length = length;
}
public Rectangle(double width, double length) {
this.width = width;
this.length = length;
}
@Override
public double area() {
// A = w * l
return width * length;
}
@Override
public double area() {
// A = w * l
return width * length;
}
@Override
public double perimeter() {
// P = 2(w + l)
return 2 * (width + length);
}
@Override
public double perimeter() {
// P = 2(w + l)
return 2 * (width + length);
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
long temp;
temp = Double.doubleToLongBits(length);
result = prime * result + (int) (temp ^ (temp >>> 32));
temp = Double.doubleToLongBits(width);
result = prime * result + (int) (temp ^ (temp >>> 32));
return result;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
long temp;
temp = Double.doubleToLongBits(length);
result = prime * result + (int) (temp ^ (temp >>> 32));
temp = Double.doubleToLongBits(width);
result = prime * result + (int) (temp ^ (temp >>> 32));
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Rectangle other = (Rectangle) obj;
if (Double.doubleToLongBits(length) != Double
.doubleToLongBits(other.length))
return false;
if (Double.doubleToLongBits(width) != Double
.doubleToLongBits(other.width))
return false;
return true;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Rectangle other = (Rectangle) obj;
if (Double.doubleToLongBits(length) != Double.doubleToLongBits(other.length))
return false;
if (Double.doubleToLongBits(width) != Double.doubleToLongBits(other.width))
return false;
return true;
}
protected double getWidth() {
return width;
}
protected double getWidth() {
return width;
}
protected double getLength() {
return length;
}
protected double getLength() {
return length;
}
}

4
eclipse/src/main/java/org/baeldung/equalshashcode/entities/Shape.java
View File

@ -1,7 +1,7 @@
package org.baeldung.equalshashcode.entities;
public abstract class Shape {
public abstract double area();
public abstract double area();
public abstract double perimeter();
public abstract double perimeter();
}

79
eclipse/src/main/java/org/baeldung/equalshashcode/entities/Square.java
View File

@ -4,44 +4,55 @@ import java.awt.Color;
public class Square extends Rectangle {
Color color;
Color color;
public Square(double width, Color color) {
super(width, width);
this.color = color;
}
public Square(double width, Color color) {
super(width, width);
this.color = color;
}
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + ((color == null) ? 0 : color.hashCode());
return result;
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + ((color == null) ? 0 : color.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (!super.equals(obj))
return false;
if (getClass() != obj.getClass())
return false;
Square other = (Square) obj;
if (color == null) {
if (other.color != null)
return false;
} else if (!color.equals(other.color))
return false;
return true;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!super.equals(obj)) {
return false;
}
if (!(obj instanceof Square)) {
return false;
}
Square other = (Square) obj;
if (color == null) {
if (other.color != null) {
return false;
}
} else if (!color.equals(other.color)) {
return false;
}
return true;
}
protected Color getColor() {
return color;
}
protected Color getColor() {
return color;
}
protected void setColor(Color color) {
this.color = color;
}
protected void setColor(Color color) {
this.color = color;
}
}

49
eclipse/src/test/java/org/baeldung/equalshashcode/entities/ComplexClassTest.java
View File

@ -8,32 +8,27 @@ import org.junit.Test;
public class ComplexClassTest {
@Test
public void testEqualsAndHashcodes() {
ArrayList<String> strArrayList = new ArrayList<String>();
strArrayList.add("abc");
strArrayList.add("def");
ComplexClass aObject = new ComplexClass(strArrayList, new HashSet<Integer>(45,67));
ComplexClass bObject = new ComplexClass(strArrayList, new HashSet<Integer>(45,67));
ComplexClass cObject = new ComplexClass(strArrayList, new HashSet<Integer>(45,67));
ArrayList<String> strArrayListD = new ArrayList<String>();
strArrayListD.add("lmn");
strArrayListD.add("pqr");
ComplexClass dObject = new ComplexClass(strArrayListD, new HashSet<Integer>(45,67));
// equals()
Assert.assertTrue(aObject.equals(aObject));
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
Assert.assertTrue(aObject.equals(bObject));
Assert.assertTrue(bObject.equals(cObject));
Assert.assertTrue(aObject.equals(cObject));
// hashCode()
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
// non-equal objects are not equals() and have different hashCode()
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
@Test
public void testEqualsAndHashcodes() {
ArrayList<String> strArrayList = new ArrayList<String>();
strArrayList.add("abc");
strArrayList.add("def");
ComplexClass aObject = new ComplexClass(strArrayList, new HashSet<Integer>(45, 67));
ComplexClass bObject = new ComplexClass(strArrayList, new HashSet<Integer>(45, 67));
ArrayList<String> strArrayListD = new ArrayList<String>();
strArrayListD.add("lmn");
strArrayListD.add("pqr");
ComplexClass dObject = new ComplexClass(strArrayListD, new HashSet<Integer>(45, 67));
// equals()
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
// hashCode()
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
// non-equal objects are not equals() and have different hashCode()
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
}

31
eclipse/src/test/java/org/baeldung/equalshashcode/entities/PrimitiveClassTest.java
View File

@ -5,25 +5,20 @@ import org.junit.Test;
public class PrimitiveClassTest {
@Test
public void testTwoEqualsObjects() {
@Test
public void testTwoEqualsObjects() {
PrimitiveClass aObject = new PrimitiveClass(false, 2);
PrimitiveClass bObject = new PrimitiveClass(false, 2);
PrimitiveClass cObject = new PrimitiveClass(false, 2);
PrimitiveClass dObject = new PrimitiveClass(true, 2);
PrimitiveClass aObject = new PrimitiveClass(false, 2);
PrimitiveClass bObject = new PrimitiveClass(false, 2);
PrimitiveClass dObject = new PrimitiveClass(true, 2);
// equals()
Assert.assertTrue(aObject.equals(aObject));
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
Assert.assertTrue(aObject.equals(bObject));
Assert.assertTrue(bObject.equals(cObject));
Assert.assertTrue(aObject.equals(cObject));
// hashCode()
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
// non-equal objects are not equals() and have different hashCode()
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
// equals()
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
// hashCode()
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
// non-equal objects are not equals() and have different hashCode()
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
}

37
eclipse/src/test/java/org/baeldung/equalshashcode/entities/SquareClassTest.java
View File

@ -7,26 +7,21 @@ import org.junit.Test;
public class SquareClassTest {
@Test
public void testEqualsAndHashcodes() {
Square aObject = new Square(10, Color.BLUE);
Square bObject = new Square(10, Color.BLUE);
Square cObject = new Square(10, Color.BLUE);
Square dObject = new Square(20, Color.BLUE);
// equals()
Assert.assertTrue(aObject.equals(aObject));
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
Assert.assertTrue(aObject.equals(bObject));
Assert.assertTrue(bObject.equals(cObject));
Assert.assertTrue(aObject.equals(cObject));
// hashCode()
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
// non-equal objects are not equals() and have different hashCode()
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
@Test
public void testEqualsAndHashcodes() {
Square aObject = new Square(10, Color.BLUE);
Square bObject = new Square(10, Color.BLUE);
Square dObject = new Square(20, Color.BLUE);
// equals()
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
// hashCode()
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
// non-equal objects are not equals() and have different hashCode()
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
}

4
enterprise-patterns/front-controller-pattern/pom.xml
View File

@ -31,7 +31,11 @@
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<<<<<<< HEAD
<version>9.3.11.v20160721</version>
=======
<version>9.4.0.M1</version>
>>>>>>> upstream/master
<configuration>
<webApp>
<contextPath>/front-controller</contextPath>

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22
enterprise-patterns/front-controller-pattern/src/main/resources/front controller.puml Normal file
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@ -0,0 +1,22 @@
@startuml
class Handler {
doGet
doPost
}
abstract class AbstractCommand {
process
}
class ConcreteCommand1 {
process
}
class ConcreteCommand2 {
process
}
Handler .right.> AbstractCommand
AbstractCommand <|-- ConcreteCommand1
AbstractCommand <|-- ConcreteCommand2
@enduml

5
feign-client/README.md Normal file
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@ -0,0 +1,5 @@
## Feign Hypermedia Client ##
This is the implementation of a [spring-hypermedia-api][1] client using Feign.
[1]: https://github.com/eugenp/spring-hypermedia-api

99
feign-client/pom.xml Normal file
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@ -0,0 +1,99 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung.feign</groupId>
<artifactId>feign-client</artifactId>
<version>1.0.0-SNAPSHOT</version>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>io.github.openfeign</groupId>
<artifactId>feign-core</artifactId>
<version>9.3.1</version>
</dependency>
<dependency>
<groupId>io.github.openfeign</groupId>
<artifactId>feign-okhttp</artifactId>
<version>9.3.1</version>
</dependency>
<dependency>
<groupId>io.github.openfeign</groupId>
<artifactId>feign-gson</artifactId>
<version>9.3.1</version>
</dependency>
<dependency>
<groupId>io.github.openfeign</groupId>
<artifactId>feign-slf4j</artifactId>
<version>9.3.1</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.6.2</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.10</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<skipTests>true</skipTests>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.4.0.RELEASE</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

26
feign-client/src/main/java/com/baeldung/feign/BookControllerFeignClientBuilder.java Normal file
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@ -0,0 +1,26 @@
package com.baeldung.feign;
import com.baeldung.feign.clients.BookClient;
import feign.Feign;
import feign.Logger;
import feign.gson.GsonDecoder;
import feign.gson.GsonEncoder;
import feign.okhttp.OkHttpClient;
import feign.slf4j.Slf4jLogger;
import lombok.Getter;
@Getter
public class BookControllerFeignClientBuilder {
private BookClient bookClient = createClient(BookClient.class,
"http://localhost:8081/api/books");
private static <T> T createClient(Class<T> type, String uri) {
return Feign.builder()
.client(new OkHttpClient())
.encoder(new GsonEncoder())
.decoder(new GsonDecoder())
.logger(new Slf4jLogger(type))
.logLevel(Logger.Level.FULL)
.target(type, uri);
}
}

21
feign-client/src/main/java/com/baeldung/feign/clients/BookClient.java Normal file
View File

@ -0,0 +1,21 @@
package com.baeldung.feign.clients;
import com.baeldung.feign.models.Book;
import com.baeldung.feign.models.BookResource;
import feign.Headers;
import feign.Param;
import feign.RequestLine;
import java.util.List;
public interface BookClient {
@RequestLine("GET /{isbn}")
BookResource findByIsbn(@Param("isbn") String isbn);
@RequestLine("GET")
List<BookResource> findAll();
@RequestLine("POST")
@Headers("Content-Type: application/json")
void create(Book book);
}

18
feign-client/src/main/java/com/baeldung/feign/models/Book.java Normal file
View File

@ -0,0 +1,18 @@
package com.baeldung.feign.models;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
@Data
@ToString
@NoArgsConstructor
@AllArgsConstructor
public class Book {
private String isbn;
private String author;
private String title;
private String synopsis;
private String language;
}

14
feign-client/src/main/java/com/baeldung/feign/models/BookResource.java Normal file
View File

@ -0,0 +1,14 @@
package com.baeldung.feign.models;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
@Data
@ToString
@NoArgsConstructor
@AllArgsConstructor
public class BookResource {
private Book book;
}

14
feign-client/src/main/resources/log4j2.xml Normal file
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@ -0,0 +1,14 @@
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36}:%n[+] %msg%n"/>
</Console>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>

58
feign-client/src/test/java/com/baeldung/feign/clients/BookClientTest.java Normal file
View File

@ -0,0 +1,58 @@
package com.baeldung.feign.clients;
import com.baeldung.feign.BookControllerFeignClientBuilder;
import com.baeldung.feign.models.Book;
import com.baeldung.feign.models.BookResource;
import lombok.extern.slf4j.Slf4j;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
@Slf4j
@RunWith(JUnit4.class)
public class BookClientTest {
private BookClient bookClient;
@Before
public void setup() {
BookControllerFeignClientBuilder feignClientBuilder = new BookControllerFeignClientBuilder();
bookClient = feignClientBuilder.getBookClient();
}
@Test
public void givenBookClient_shouldRunSuccessfully() throws Exception {
List<Book> books = bookClient.findAll().stream()
.map(BookResource::getBook)
.collect(Collectors.toList());
assertTrue(books.size() > 2);
log.info("{}", books);
}
@Test
public void givenBookClient_shouldFindOneBook() throws Exception {
Book book = bookClient.findByIsbn("0151072558").getBook();
assertThat(book.getAuthor(), containsString("Orwell"));
log.info("{}", book);
}
@Test
public void givenBookClient_shouldPostBook() throws Exception {
String isbn = UUID.randomUUID().toString();
Book book = new Book(isbn, "Me", "It's me!", null, null);
bookClient.create(book);
book = bookClient.findByIsbn(isbn).getBook();
assertThat(book.getAuthor(), is("Me"));
log.info("{}", book);
}
}

4
flyway-migration/.gitignore vendored Normal file
View File

@ -0,0 +1,4 @@
.classpath
.project
.settings
target/

8
flyway-migration/db/migration/V1_0__create_employee_schema.sql Normal file
View File

@ -0,0 +1,8 @@
CREATE TABLE IF NOT EXISTS `employee` (
`id` int NOT NULL AUTO_INCREMENT PRIMARY KEY,
`name` varchar(20),
`email` varchar(50),
`date_of_birth` timestamp
)ENGINE=InnoDB DEFAULT CHARSET=UTF8;

8
flyway-migration/db/migration/V2_0__create_department_schema.sql Normal file
View File

@ -0,0 +1,8 @@
CREATE TABLE IF NOT EXISTS `department` (
`id` int NOT NULL AUTO_INCREMENT PRIMARY KEY,
`name` varchar(20)
)ENGINE=InnoDB DEFAULT CHARSET=UTF8;
ALTER TABLE `employee` ADD `dept_id` int AFTER `email`;

5
flyway-migration/myFlywayConfig.properties Normal file
View File

@ -0,0 +1,5 @@
flyway.user=root
flyway.password=mysql
flyway.schemas=app-db
flyway.url=jdbc:mysql://localhost:3306/
flyway.locations=filesystem:db/migration

34
flyway-migration/pom.xml Normal file
View File

@ -0,0 +1,34 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>flyway-migration</artifactId>
<version>1.0</version>
<name>flyway-migration</name>
<description>A sample project to demonstrate Flyway migrations</description>
<dependencies>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.3</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-maven-plugin</artifactId>
<version>4.0.3</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

102
java-cassandra/pom.xml Normal file
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@ -0,0 +1,102 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>cassandra-java-client</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>cassandra-java-client</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- logging -->
<org.slf4j.version>1.7.21</org.slf4j.version>
<logback.version>1.1.7</logback.version>
<!-- testing -->
<org.hamcrest.version>1.3</org.hamcrest.version>
<junit.version>4.12</junit.version>
<mockito.version>1.10.19</mockito.version>
<testng.version>6.8</testng.version>
<assertj.version>3.5.1</assertj.version>
<!-- maven plugins -->
<maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
<!-- Cassandra -->
<cassandra-driver-core.version>3.1.0</cassandra-driver-core.version>
</properties>
<dependencies>
<!-- Cassandra -->
<dependency>
<groupId>com.datastax.cassandra</groupId>
<artifactId>cassandra-driver-core</artifactId>
<version>${cassandra-driver-core.version}</version>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/org.cassandraunit/cassandra-unit -->
<dependency>
<groupId>org.cassandraunit</groupId>
<artifactId>cassandra-unit</artifactId>
<version>3.0.0.1</version>
</dependency>
<!-- This guava version is required for cassandra-unit 3.0.0.1 -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>19.0</version>
</dependency>
<!-- logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<!-- <scope>runtime</scope> -->
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
<!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
</dependency>
<dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>java-cassandra</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

44
java-cassandra/src/main/java/com/baeldung/cassandra/java/client/CassandraClient.java Normal file
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@ -0,0 +1,44 @@
package com.baeldung.cassandra.java.client;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.baeldung.cassandra.java.client.domain.Book;
import com.baeldung.cassandra.java.client.repository.BookRepository;
import com.baeldung.cassandra.java.client.repository.KeyspaceRepository;
import com.datastax.driver.core.Session;
import com.datastax.driver.core.utils.UUIDs;
public class CassandraClient {
private static final Logger LOG = LoggerFactory.getLogger(CassandraClient.class);
public static void main(String args[]) {
CassandraConnector connector = new CassandraConnector();
connector.connect("127.0.0.1", null);
Session session = connector.getSession();
KeyspaceRepository sr = new KeyspaceRepository(session);
sr.createKeyspace("library", "SimpleStrategy", 1);
sr.useKeyspace("library");
BookRepository br = new BookRepository(session);
br.createTable();
br.alterTablebooks("publisher", "text");
br.createTableBooksByTitle();
Book book = new Book(UUIDs.timeBased(), "Effective Java", "Joshua Bloch", "Programming");
br.insertBookBatch(book);
br.selectAll().forEach(o -> LOG.info("Title in books: " + o.getTitle()));
br.selectAllBookByTitle().forEach(o -> LOG.info("Title in booksByTitle: " + o.getTitle()));
br.deletebookByTitle("Effective Java");
br.deleteTable("books");
br.deleteTable("booksByTitle");
sr.deleteKeyspace("library");
connector.close();
}
}

51
java-cassandra/src/main/java/com/baeldung/cassandra/java/client/CassandraConnector.java Normal file
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@ -0,0 +1,51 @@
package com.baeldung.cassandra.java.client;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.Cluster.Builder;
import com.datastax.driver.core.Host;
import com.datastax.driver.core.Metadata;
import com.datastax.driver.core.Session;
/**
*
* This is an implementation of a simple Java client.
*
*/
public class CassandraConnector {
private static final Logger LOG = LoggerFactory.getLogger(CassandraConnector.class);
private Cluster cluster;
private Session session;
public void connect(final String node, final Integer port) {
Builder b = Cluster.builder().addContactPoint(node);
if (port != null) {
b.withPort(port);
}
cluster = b.build();
Metadata metadata = cluster.getMetadata();
LOG.info("Cluster name: " + metadata.getClusterName());
for (Host host : metadata.getAllHosts()) {
LOG.info("Datacenter: " + host.getDatacenter() + " Host: " + host.getAddress() + " Rack: " + host.getRack());
}
session = cluster.connect();
}
public Session getSession() {
return this.session;
}
public void close() {
session.close();
cluster.close();
}
}

66
java-cassandra/src/main/java/com/baeldung/cassandra/java/client/domain/Book.java Normal file
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@ -0,0 +1,66 @@
package com.baeldung.cassandra.java.client.domain;
import java.util.UUID;
public class Book {
private UUID id;
private String title;
private String author;
private String subject;
private String publisher;
Book() {
}
public Book(UUID id, String title, String author, String subject) {
this.id = id;
this.title = title;
this.author = author;
this.subject = subject;
}
public UUID getId() {
return id;
}
public void setId(UUID id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public String getSubject() {
return subject;
}
public void setSubject(String subject) {
this.subject = subject;
}
public String getPublisher() {
return publisher;
}
public void setPublisher(String publisher) {
this.publisher = publisher;
}
}

177
java-cassandra/src/main/java/com/baeldung/cassandra/java/client/repository/BookRepository.java Normal file
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@ -0,0 +1,177 @@
package com.baeldung.cassandra.java.client.repository;
import java.util.ArrayList;
import java.util.List;
import com.baeldung.cassandra.java.client.domain.Book;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.Row;
import com.datastax.driver.core.Session;
public class BookRepository {
private static final String TABLE_NAME = "books";
private static final String TABLE_NAME_BY_TITLE = TABLE_NAME + "ByTitle";
private Session session;
public BookRepository(Session session) {
this.session = session;
}
/**
* Creates the books table.
*/
public void createTable() {
StringBuilder sb = new StringBuilder("CREATE TABLE IF NOT EXISTS ").append(TABLE_NAME).append("(").append("id uuid PRIMARY KEY, ").append("title text,").append("author text,").append("subject text);");
final String query = sb.toString();
session.execute(query);
}
/**
* Creates the books table.
*/
public void createTableBooksByTitle() {
StringBuilder sb = new StringBuilder("CREATE TABLE IF NOT EXISTS ").append(TABLE_NAME_BY_TITLE).append("(").append("id uuid, ").append("title text,").append("PRIMARY KEY (title, id));");
final String query = sb.toString();
session.execute(query);
}
/**
* Alters the table books and adds an extra column.
*/
public void alterTablebooks(String columnName, String columnType) {
StringBuilder sb = new StringBuilder("ALTER TABLE ").append(TABLE_NAME).append(" ADD ").append(columnName).append(" ").append(columnType).append(";");
final String query = sb.toString();
session.execute(query);
}
/**
* Insert a row in the table books.
*
* @param book
*/
public void insertbook(Book book) {
StringBuilder sb = new StringBuilder("INSERT INTO ").append(TABLE_NAME).append("(id, title, author, subject) ").append("VALUES (").append(book.getId()).append(", '").append(book.getTitle()).append("', '").append(book.getAuthor()).append("', '")
.append(book.getSubject()).append("');");
final String query = sb.toString();
session.execute(query);
}
/**
* Insert a row in the table booksByTitle.
* @param book
*/
public void insertbookByTitle(Book book) {
StringBuilder sb = new StringBuilder("INSERT INTO ").append(TABLE_NAME_BY_TITLE).append("(id, title) ").append("VALUES (").append(book.getId()).append(", '").append(book.getTitle()).append("');");
final String query = sb.toString();
session.execute(query);
}
/**
* Insert a book into two identical tables using a batch query.
*
* @param book
*/
public void insertBookBatch(Book book) {
StringBuilder sb = new StringBuilder("BEGIN BATCH ")
.append("INSERT INTO ").append(TABLE_NAME).append("(id, title, author, subject) ")
.append("VALUES (").append(book.getId()).append(", '").append(book.getTitle()).append("', '").append(book.getAuthor()).append("', '")
.append(book.getSubject()).append("');")
.append("INSERT INTO ").append(TABLE_NAME_BY_TITLE).append("(id, title) ")
.append("VALUES (").append(book.getId()).append(", '").append(book.getTitle()).append("');")
.append("APPLY BATCH;");
final String query = sb.toString();
session.execute(query);
}
/**
* Select book by id.
*
* @return
*/
public Book selectByTitle(String title) {
StringBuilder sb = new StringBuilder("SELECT * FROM ").append(TABLE_NAME_BY_TITLE).append(" WHERE title = '").append(title).append("';");
final String query = sb.toString();
ResultSet rs = session.execute(query);
List<Book> books = new ArrayList<Book>();
for (Row r : rs) {
Book s = new Book(r.getUUID("id"), r.getString("title"), null, null);
books.add(s);
}
return books.get(0);
}
/**
* Select all books from books
*
* @return
*/
public List<Book> selectAll() {
StringBuilder sb = new StringBuilder("SELECT * FROM ").append(TABLE_NAME);
final String query = sb.toString();
ResultSet rs = session.execute(query);
List<Book> books = new ArrayList<Book>();
for (Row r : rs) {
Book book = new Book(r.getUUID("id"), r.getString("title"), r.getString("author"), r.getString("subject"));
books.add(book);
}
return books;
}
/**
* Select all books from booksByTitle
* @return
*/
public List<Book> selectAllBookByTitle() {
StringBuilder sb = new StringBuilder("SELECT * FROM ").append(TABLE_NAME_BY_TITLE);
final String query = sb.toString();
ResultSet rs = session.execute(query);
List<Book> books = new ArrayList<Book>();
for (Row r : rs) {
Book book = new Book(r.getUUID("id"), r.getString("title"), null, null);
books.add(book);
}
return books;
}
/**
* Delete a book by title.
*/
public void deletebookByTitle(String title) {
StringBuilder sb = new StringBuilder("DELETE FROM ").append(TABLE_NAME_BY_TITLE).append(" WHERE title = '").append(title).append("';");
final String query = sb.toString();
session.execute(query);
}
/**
* Delete table.
*
* @param tableName the name of the table to delete.
*/
public void deleteTable(String tableName) {
StringBuilder sb = new StringBuilder("DROP TABLE IF EXISTS ").append(tableName);
final String query = sb.toString();
session.execute(query);
}
}

49
java-cassandra/src/main/java/com/baeldung/cassandra/java/client/repository/KeyspaceRepository.java Normal file
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package com.baeldung.cassandra.java.client.repository;
import com.datastax.driver.core.Session;
/**
* Repository to handle the Cassandra schema.
*
*/
public class KeyspaceRepository {
private Session session;
public KeyspaceRepository(Session session) {
this.session = session;
}
/**
* Method used to create any keyspace - schema.
*
* @param schemaName the name of the schema.
* @param replicatioonStrategy the replication strategy.
* @param numberOfReplicas the number of replicas.
*
*/
public void createKeyspace(String keyspaceName, String replicatioonStrategy, int numberOfReplicas) {
StringBuilder sb = new StringBuilder("CREATE KEYSPACE IF NOT EXISTS ").append(keyspaceName).append(" WITH replication = {").append("'class':'").append(replicatioonStrategy).append("','replication_factor':").append(numberOfReplicas).append("};");
final String query = sb.toString();
session.execute(query);
}
public void useKeyspace(String keyspace) {
session.execute("USE " + keyspace);
}
/**
* Method used to delete the specified schema.
* It results in the immediate, irreversable removal of the keyspace, including all tables and data contained in the keyspace.
*
* @param schemaName the name of the keyspace to delete.
*/
public void deleteKeyspace(String keyspaceName) {
StringBuilder sb = new StringBuilder("DROP KEYSPACE ").append(keyspaceName);
final String query = sb.toString();
session.execute(query);
}
}

174
java-cassandra/src/test/java/com/baeldung/cassandra/java/client/repository/BookRepositoryIntegrationTest.java Normal file
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package com.baeldung.cassandra.java.client.repository;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.List;
import java.util.stream.Collectors;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.thrift.transport.TTransportException;
import org.cassandraunit.utils.EmbeddedCassandraServerHelper;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import com.baeldung.cassandra.java.client.CassandraConnector;
import com.baeldung.cassandra.java.client.domain.Book;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.Session;
import com.datastax.driver.core.exceptions.InvalidQueryException;
import com.datastax.driver.core.utils.UUIDs;
public class BookRepositoryIntegrationTest {
private KeyspaceRepository schemaRepository;
private BookRepository bookRepository;
private Session session;
final String KEYSPACE_NAME = "testLibrary";
final String BOOKS = "books";
final String BOOKS_BY_TITLE = "booksByTitle";
@BeforeClass
public static void init() throws ConfigurationException, TTransportException, IOException, InterruptedException {
// Start an embedded Cassandra Server
EmbeddedCassandraServerHelper.startEmbeddedCassandra(20000L);
}
@Before
public void connect() {
CassandraConnector client = new CassandraConnector();
client.connect("127.0.0.1", 9142);
this.session = client.getSession();
schemaRepository = new KeyspaceRepository(session);
schemaRepository.createKeyspace(KEYSPACE_NAME, "SimpleStrategy", 1);
schemaRepository.useKeyspace(KEYSPACE_NAME);
bookRepository = new BookRepository(session);
}
@Test
public void whenCreatingATable_thenCreatedCorrectly() {
bookRepository.deleteTable(BOOKS);
bookRepository.createTable();
ResultSet result = session.execute("SELECT * FROM " + KEYSPACE_NAME + "." + BOOKS + ";");
// Collect all the column names in one list.
List<String> columnNames = result.getColumnDefinitions().asList().stream().map(cl -> cl.getName()).collect(Collectors.toList());
assertEquals(columnNames.size(), 4);
assertTrue(columnNames.contains("id"));
assertTrue(columnNames.contains("title"));
assertTrue(columnNames.contains("author"));
assertTrue(columnNames.contains("subject"));
}
@Test
public void whenAlteringTable_thenAddedColumnExists() {
bookRepository.deleteTable(BOOKS);
bookRepository.createTable();
bookRepository.alterTablebooks("publisher", "text");
ResultSet result = session.execute("SELECT * FROM " + KEYSPACE_NAME + "." + BOOKS + ";");
boolean columnExists = result.getColumnDefinitions().asList().stream().anyMatch(cl -> cl.getName().equals("publisher"));
assertTrue(columnExists);
}
@Test
public void whenAddingANewBook_thenBookExists() {
bookRepository.deleteTable(BOOKS_BY_TITLE);
bookRepository.createTableBooksByTitle();
String title = "Effective Java";
String author = "Joshua Bloch";
Book book = new Book(UUIDs.timeBased(), title, author, "Programming");
bookRepository.insertbookByTitle(book);
Book savedBook = bookRepository.selectByTitle(title);
assertEquals(book.getTitle(), savedBook.getTitle());
}
@Test
public void whenAddingANewBookBatch_ThenBookAddedInAllTables() {
// Create table books
bookRepository.deleteTable(BOOKS);
bookRepository.createTable();
// Create table booksByTitle
bookRepository.deleteTable(BOOKS_BY_TITLE);
bookRepository.createTableBooksByTitle();
String title = "Effective Java";
String author = "Joshua Bloch";
Book book = new Book(UUIDs.timeBased(), title, author, "Programming");
bookRepository.insertBookBatch(book);
List<Book> books = bookRepository.selectAll();
assertEquals(1, books.size());
assertTrue(books.stream().anyMatch(b -> b.getTitle().equals("Effective Java")));
List<Book> booksByTitle = bookRepository.selectAllBookByTitle();
assertEquals(1, booksByTitle.size());
assertTrue(booksByTitle.stream().anyMatch(b -> b.getTitle().equals("Effective Java")));
}
@Test
public void whenSelectingAll_thenReturnAllRecords() {
bookRepository.deleteTable(BOOKS);
bookRepository.createTable();
Book book = new Book(UUIDs.timeBased(), "Effective Java", "Joshua Bloch", "Programming");
bookRepository.insertbook(book);
book = new Book(UUIDs.timeBased(), "Clean Code", "Robert C. Martin", "Programming");
bookRepository.insertbook(book);
List<Book> books = bookRepository.selectAll();
assertEquals(2, books.size());
assertTrue(books.stream().anyMatch(b -> b.getTitle().equals("Effective Java")));
assertTrue(books.stream().anyMatch(b -> b.getTitle().equals("Clean Code")));
}
@Test
public void whenDeletingABookByTitle_thenBookIsDeleted() {
bookRepository.deleteTable(BOOKS_BY_TITLE);
bookRepository.createTableBooksByTitle();
Book book = new Book(UUIDs.timeBased(), "Effective Java", "Joshua Bloch", "Programming");
bookRepository.insertbookByTitle(book);
book = new Book(UUIDs.timeBased(), "Clean Code", "Robert C. Martin", "Programming");
bookRepository.insertbookByTitle(book);
bookRepository.deletebookByTitle("Clean Code");
List<Book> books = bookRepository.selectAllBookByTitle();
assertEquals(1, books.size());
assertTrue(books.stream().anyMatch(b -> b.getTitle().equals("Effective Java")));
assertFalse(books.stream().anyMatch(b -> b.getTitle().equals("Clean Code")));
}
@Test(expected = InvalidQueryException.class)
public void whenDeletingATable_thenUnconfiguredTable() {
bookRepository.createTable();
bookRepository.deleteTable(BOOKS);
session.execute("SELECT * FROM " + KEYSPACE_NAME + "." + BOOKS + ";");
}
@AfterClass
public static void cleanup() {
EmbeddedCassandraServerHelper.cleanEmbeddedCassandra();
}
}

77
java-cassandra/src/test/java/com/baeldung/cassandra/java/client/repository/KeyspaceRepositoryIntegrationTest.java Normal file
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package com.baeldung.cassandra.java.client.repository;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.List;
import java.util.stream.Collectors;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.thrift.transport.TTransportException;
import org.cassandraunit.utils.EmbeddedCassandraServerHelper;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.runners.MethodSorters;
import com.baeldung.cassandra.java.client.CassandraConnector;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.Session;
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class KeyspaceRepositoryIntegrationTest {
private KeyspaceRepository schemaRepository;
private Session session;
@BeforeClass
public static void init() throws ConfigurationException, TTransportException, IOException, InterruptedException {
// Start an embedded Cassandra Server
EmbeddedCassandraServerHelper.startEmbeddedCassandra(20000L);
}
@Before
public void connect() {
CassandraConnector client = new CassandraConnector();
client.connect("127.0.0.1", 9142);
this.session = client.getSession();
schemaRepository = new KeyspaceRepository(session);
}
@Test
public void whenCreatingAKeyspace_thenCreated() {
String keyspaceName = "testBaeldungKeyspace";
schemaRepository.createKeyspace(keyspaceName, "SimpleStrategy", 1);
// ResultSet result = session.execute("SELECT * FROM system_schema.keyspaces WHERE keyspace_name = 'testBaeldungKeyspace';");
ResultSet result = session.execute("SELECT * FROM system_schema.keyspaces;");
// Check if the Keyspace exists in the returned keyspaces.
List<String> matchedKeyspaces = result.all().stream().filter(r -> r.getString(0).equals(keyspaceName.toLowerCase())).map(r -> r.getString(0)).collect(Collectors.toList());
assertEquals(matchedKeyspaces.size(), 1);
assertTrue(matchedKeyspaces.get(0).equals(keyspaceName.toLowerCase()));
}
@Test
public void whenDeletingAKeyspace_thenDoesNotExist() {
String keyspaceName = "testBaeldungKeyspace";
// schemaRepository.createKeyspace(keyspaceName, "SimpleStrategy", 1);
schemaRepository.deleteKeyspace(keyspaceName);
ResultSet result = session.execute("SELECT * FROM system_schema.keyspaces;");
boolean isKeyspaceCreated = result.all().stream().anyMatch(r -> r.getString(0).equals(keyspaceName.toLowerCase()));
assertFalse(isKeyspaceCreated);
}
@AfterClass
public static void cleanup() {
EmbeddedCassandraServerHelper.cleanEmbeddedCassandra();
}
}

28
log4j/pom.xml
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@ -15,7 +15,13 @@
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<!-- SLF4J - Log4J dependency
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.21</version>
</dependency>
-->
<!--log4j2 dependencies-->
<dependency>
@ -28,22 +34,34 @@
<artifactId>log4j-core</artifactId>
<version>2.6</version>
</dependency>
<!--disruptor for log4j2 async logging-->
<!--disruptor for log4j2 async logging-->
<dependency>
<groupId>com.lmax</groupId>
<artifactId>disruptor</artifactId>
<version>3.3.4</version>
</dependency>
<!-- SLF4J - Log4J2 dependency
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-slf4j-impl</artifactId>
<version>2.6.2</version>
</dependency>
-->
<!--logback dependencies-->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.7</version>
</dependency>
<!-- SLF4J - JCL dependency
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jcl</artifactId>
<version>1.7.21</version>
</dependency>
-->
</dependencies>
<build>
<plugins>

20
log4j/src/main/java/com/baeldung/slf4j/Slf4jExample.java Normal file
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@ -0,0 +1,20 @@
package com.baeldung.slf4j;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* To switch between logging frameworks you need only to uncomment needed framework dependencies in pom.xml
*/
public class Slf4jExample {
private static Logger logger = LoggerFactory.getLogger(Slf4jExample.class);
public static void main(String[] args) {
logger.debug("Debug log message");
logger.info("Info log message");
logger.error("Error log message");
String variable = "Hello John";
logger.debug("Printing variable value {} ", variable);
}
}

8
play-framework/student-api/.gitignore vendored Normal file
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@ -0,0 +1,8 @@
logs
target
/.idea
/.idea_modules
/.classpath
/.project
/.settings
/RUNNING_PID

8
play-framework/student-api/LICENSE Normal file
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@ -0,0 +1,8 @@
This software is licensed under the Apache 2 license, quoted below.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this project except in compliance with
the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
language governing permissions and limitations under the License.

49
play-framework/student-api/README Normal file
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@ -0,0 +1,49 @@
This is your new Play application
=================================
This file will be packaged with your application when using `activator dist`.
There are several demonstration files available in this template.
Controllers
===========
- HomeController.java:
Shows how to handle simple HTTP requests.
- AsyncController.java:
Shows how to do asynchronous programming when handling a request.
- CountController.java:
Shows how to inject a component into a controller and use the component when
handling requests.
Components
==========
- Module.java:
Shows how to use Guice to bind all the components needed by your application.
- Counter.java:
An example of a component that contains state, in this case a simple counter.
- ApplicationTimer.java:
An example of a component that starts when the application starts and stops
when the application stops.
Filters
=======
- Filters.java:
Creates the list of HTTP filters used by your application.
- ExampleFilter.java
A simple filter that adds a header to every response.

46
play-framework/student-api/app/Filters.java Normal file
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import javax.inject.*;
import play.*;
import play.mvc.EssentialFilter;
import play.http.HttpFilters;
import play.mvc.*;
import filters.ExampleFilter;
/**
* This class configures filters that run on every request. This
* class is queried by Play to get a list of filters.
*
* Play will automatically use filters from any class called
* <code>Filters</code> that is placed the root package. You can load filters
* from a different class by adding a `play.http.filters` setting to
* the <code>application.conf</code> configuration file.
*/
@Singleton
public class Filters implements HttpFilters {
private final Environment env;
private final EssentialFilter exampleFilter;
/**
* @param env Basic environment settings for the current application.
* @param exampleFilter A demonstration filter that adds a header to
*/
@Inject
public Filters(Environment env, ExampleFilter exampleFilter) {
this.env = env;
this.exampleFilter = exampleFilter;
}
@Override
public EssentialFilter[] filters() {
// Use the example filter if we're running development mode. If
// we're running in production or test mode then don't use any
// filters at all.
if (env.mode().equals(Mode.DEV)) {
return new EssentialFilter[] { exampleFilter };
} else {
return new EssentialFilter[] {};
}
}
}

31
play-framework/student-api/app/Module.java Normal file
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@ -0,0 +1,31 @@
import com.google.inject.AbstractModule;
import java.time.Clock;
import services.ApplicationTimer;
import services.AtomicCounter;
import services.Counter;
/**
* This class is a Guice module that tells Guice how to bind several
* different types. This Guice module is created when the Play
* application starts.
*
* Play will automatically use any class called `Module` that is in
* the root package. You can create modules in other locations by
* adding `play.modules.enabled` settings to the `application.conf`
* configuration file.
*/
public class Module extends AbstractModule {
@Override
public void configure() {
// Use the system clock as the default implementation of Clock
bind(Clock.class).toInstance(Clock.systemDefaultZone());
// Ask Guice to create an instance of ApplicationTimer when the
// application starts.
bind(ApplicationTimer.class).asEagerSingleton();
// Set AtomicCounter as the implementation for Counter.
bind(Counter.class).to(AtomicCounter.class);
}
}

60
play-framework/student-api/app/controllers/AsyncController.java Normal file
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@ -0,0 +1,60 @@
package controllers;
import akka.actor.ActorSystem;
import javax.inject.*;
import play.*;
import play.mvc.*;
import java.util.concurrent.Executor;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.TimeUnit;
import scala.concurrent.duration.Duration;
import scala.concurrent.ExecutionContextExecutor;
/**
* This controller contains an action that demonstrates how to write
* simple asynchronous code in a controller. It uses a timer to
* asynchronously delay sending a response for 1 second.
*
* @param actorSystem We need the {@link ActorSystem}'s
* {@link Scheduler} to run code after a delay.
* @param exec We need a Java {@link Executor} to apply the result
* of the {@link CompletableFuture} and a Scala
* {@link ExecutionContext} so we can use the Akka {@link Scheduler}.
* An {@link ExecutionContextExecutor} implements both interfaces.
*/
@Singleton
public class AsyncController extends Controller {
private final ActorSystem actorSystem;
private final ExecutionContextExecutor exec;
@Inject
public AsyncController(ActorSystem actorSystem, ExecutionContextExecutor exec) {
this.actorSystem = actorSystem;
this.exec = exec;
}
/**
* An action that returns a plain text message after a delay
* of 1 second.
*
* The configuration in the <code>routes</code> file means that this method
* will be called when the application receives a <code>GET</code> request with
* a path of <code>/message</code>.
*/
public CompletionStage<Result> message() {
return getFutureMessage(1, TimeUnit.SECONDS).thenApplyAsync(Results::ok, exec);
}
private CompletionStage<String> getFutureMessage(long time, TimeUnit timeUnit) {
CompletableFuture<String> future = new CompletableFuture<>();
actorSystem.scheduler().scheduleOnce(
Duration.create(time, timeUnit),
() -> future.complete("Hi!"),
exec
);
return future;
}
}

35
play-framework/student-api/app/controllers/CountController.java Normal file
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@ -0,0 +1,35 @@
package controllers;
import javax.inject.*;
import play.*;
import play.mvc.*;
import services.Counter;
/**
* This controller demonstrates how to use dependency injection to
* bind a component into a controller class. The class contains an
* action that shows an incrementing count to users. The {@link Counter}
* object is injected by the Guice dependency injection system.
*/
@Singleton
public class CountController extends Controller {
private final Counter counter;
@Inject
public CountController(Counter counter) {
this.counter = counter;
}
/**
* An action that responds with the {@link Counter}'s current
* count. The result is plain text. This action is mapped to
* <code>GET</code> requests with a path of <code>/count</code>
* requests by an entry in the <code>routes</code> config file.
*/
public Result count() {
return ok(Integer.toString(counter.nextCount()));
}
}

23
play-framework/student-api/app/controllers/HomeController.java Normal file
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@ -0,0 +1,23 @@
package controllers;
import play.mvc.*;
import views.html.*;
/**
* This controller contains an action to handle HTTP requests
* to the application's home page.
*/
public class HomeController extends Controller {
/**
* An action that renders an HTML page with a welcome message.
* The configuration in the <code>routes</code> file means that
* this method will be called when the application receives a
* <code>GET</code> request with a path of <code>/</code>.
*/
public Result index() {
return ok(index.render("Your new application is ready."));
}
}

56
play-framework/student-api/app/controllers/StudentController.java Normal file
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@ -0,0 +1,56 @@
package controllers;
import models.*;
import util.*;
import play.mvc.*;
import play.libs.Json;
import play.libs.Json.*;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.List;
public class StudentController extends Controller {
public Result create() {
JsonNode json = request().body().asJson();
if(json == null)
return badRequest(Util.createResponse("Expecting Json data",false));
Student student=StudentStore.getInstance().addStudent((Student)Json.fromJson(json,Student.class));
JsonNode jsonObject=Json.toJson(student);
return created(Util.createResponse(jsonObject,true));
}
public Result update() {
JsonNode json = request().body().asJson();
if(json == null)
return badRequest(Util.createResponse("Expecting Json data",false));
Student student=StudentStore.getInstance().updateStudent((Student)Json.fromJson(json,Student.class));
if(student==null){
return notFound(Util.createResponse("Student not found",false));
}
JsonNode jsonObject=Json.toJson(student);
return ok(Util.createResponse(jsonObject,true));
}
public Result retrieve(int id) {
Student student=StudentStore.getInstance().getStudent(id);
if(student==null){
return notFound(Util.createResponse("Student with id:"+id+" not found",false));
}
JsonNode jsonObjects=Json.toJson(student);
return ok(Util.createResponse(jsonObjects,true));
}
public Result listStudents() {
List<Student> result=StudentStore.getInstance().getAllStudents();
ObjectMapper mapper = new ObjectMapper();
JsonNode jsonData=mapper.convertValue(result, JsonNode.class);
return ok(Util.createResponse(jsonData,true));
}
public Result delete(int id) {
boolean status=StudentStore.getInstance().deleteStudent(id);
if(!status){
return notFound(Util.createResponse("Student with id:"+id+" not found",false));
}
return ok(Util.createResponse("Student with id:"+id+" deleted",true));
}
}

45
play-framework/student-api/app/filters/ExampleFilter.java Normal file
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@ -0,0 +1,45 @@
package filters;
import akka.stream.Materializer;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.Executor;
import java.util.function.Function;
import javax.inject.*;
import play.mvc.*;
import play.mvc.Http.RequestHeader;
/**
* This is a simple filter that adds a header to all requests. It's
* added to the application's list of filters by the
* {@link Filters} class.
*/
@Singleton
public class ExampleFilter extends Filter {
private final Executor exec;
/**
* @param mat This object is needed to handle streaming of requests
* and responses.
* @param exec This class is needed to execute code asynchronously.
* It is used below by the <code>thenAsyncApply</code> method.
*/
@Inject
public ExampleFilter(Materializer mat, Executor exec) {
super(mat);
this.exec = exec;
}
@Override
public CompletionStage<Result> apply(
Function<RequestHeader, CompletionStage<Result>> next,
RequestHeader requestHeader) {
return next.apply(requestHeader).thenApplyAsync(
result -> result.withHeader("X-ExampleFilter", "foo"),
exec
);
}
}

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play-framework/student-api/app/models/Student.java Normal file
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package models;
public class Student {
private String firstName;
private String lastName;
private int age;
private int id;
public Student(){}
public Student(String firstName, String lastName, int age) {
super();
this.firstName = firstName;
this.lastName = lastName;
this.age = age;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}

52
play-framework/student-api/app/models/StudentStore.java Normal file
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package models;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class StudentStore {
private static StudentStore instance;
private Map<Integer, Student> students = new HashMap<>();
public static StudentStore getInstance() {
if (instance == null)
instance = new StudentStore();
return instance;
}
public Student addStudent(Student student) {
int id = students.size() + 1;
student.setId(id);
students.put(id, student);
return student;
}
public Student getStudent(int id) {
if (students.containsKey(id))
return students.get(id);
return null;
}
public List<Student> getAllStudents() {
return new ArrayList<Student>(students.values());
}
public Student updateStudent(Student student) {
int id=student.getId();
if (students.containsKey(id)) {
student.setId(id);
students.put(id, student);
return student;
}
return null;
}
public boolean deleteStudent(int id) {
if (!students.containsKey(id))
return false;
students.remove(id);
return true;
}
}

50
play-framework/student-api/app/services/ApplicationTimer.java Normal file
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package services;
import java.time.Clock;
import java.time.Instant;
import java.util.concurrent.CompletableFuture;
import javax.inject.*;
import play.Logger;
import play.inject.ApplicationLifecycle;
/**
* This class demonstrates how to run code when the
* application starts and stops. It starts a timer when the
* application starts. When the application stops it prints out how
* long the application was running for.
*
* This class is registered for Guice dependency injection in the
* {@link Module} class. We want the class to start when the application
* starts, so it is registered as an "eager singleton". See the code
* in the {@link Module} class to see how this happens.
*
* This class needs to run code when the server stops. It uses the
* application's {@link ApplicationLifecycle} to register a stop hook.
*/
@Singleton
public class ApplicationTimer {
private final Clock clock;
private final ApplicationLifecycle appLifecycle;
private final Instant start;
@Inject
public ApplicationTimer(Clock clock, ApplicationLifecycle appLifecycle) {
this.clock = clock;
this.appLifecycle = appLifecycle;
// This code is called when the application starts.
start = clock.instant();
Logger.info("ApplicationTimer demo: Starting application at " + start);
// When the application starts, register a stop hook with the
// ApplicationLifecycle object. The code inside the stop hook will
// be run when the application stops.
appLifecycle.addStopHook(() -> {
Instant stop = clock.instant();
Long runningTime = stop.getEpochSecond() - start.getEpochSecond();
Logger.info("ApplicationTimer demo: Stopping application at " + clock.instant() + " after " + runningTime + "s.");
return CompletableFuture.completedFuture(null);
});
}
}

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play-framework/student-api/app/services/AtomicCounter.java Normal file
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package services;
import java.util.concurrent.atomic.AtomicInteger;
import javax.inject.*;
/**
* This class is a concrete implementation of the {@link Counter} trait.
* It is configured for Guice dependency injection in the {@link Module}
* class.
*
* This class has a {@link Singleton} annotation because we need to make
* sure we only use one counter per application. Without this
* annotation we would get a new instance every time a {@link Counter} is
* injected.
*/
@Singleton
public class AtomicCounter implements Counter {
private final AtomicInteger atomicCounter = new AtomicInteger();
@Override
public int nextCount() {
return atomicCounter.getAndIncrement();
}
}

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play-framework/student-api/app/services/Counter.java Normal file
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package services;
/**
* This interface demonstrates how to create a component that is injected
* into a controller. The interface represents a counter that returns a
* incremented number each time it is called.
*
* The {@link Modules} class binds this interface to the
* {@link AtomicCounter} implementation.
*/
public interface Counter {
int nextCount();
}

17
play-framework/student-api/app/util/Util.java Normal file
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package util;
import com.fasterxml.jackson.databind.node.ObjectNode;
import play.libs.Json;
import play.libs.Json.*;
import com.fasterxml.jackson.databind.JsonNode;
public class Util{
public static ObjectNode createResponse(Object response,boolean ok){
ObjectNode result = Json.newObject();
result.put("isSuccessfull", ok);
if(response instanceof String)
result.put("body",(String)response);
else result.put("body",(JsonNode)response);
return result;
}
}

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play-framework/student-api/app/views/index.scala.html Normal file
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@*
* This template takes a single argument, a String containing a
* message to display.
*@
@(message: String)
@*
* Call the `main` template with two arguments. The first
* argument is a `String` with the title of the page, the second
* argument is an `Html` object containing the body of the page.
*@
@main("Welcome to Play") {
@*
* Get an `Html` object by calling the built-in Play welcome
* template and passing a `String` message.
*@
@play20.welcome(message, style = "Java")
}

23
play-framework/student-api/app/views/main.scala.html Normal file
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@*
* This template is called from the `index` template. This template
* handles the rendering of the page header and body tags. It takes
* two arguments, a `String` for the title of the page and an `Html`
* object to insert into the body of the page.
*@
@(title: String)(content: Html)
<!DOCTYPE html>
<html lang="en">
<head>
@* Here's where we render the page title `String`. *@
<title>@title</title>
<link rel="stylesheet" media="screen" href="@routes.Assets.versioned("stylesheets/main.css")">
<link rel="shortcut icon" type="image/png" href="@routes.Assets.versioned("images/favicon.png")">
<script src="@routes.Assets.versioned("javascripts/hello.js")" type="text/javascript"></script>
</head>
<body>
@* And here's where we render the `Html` object containing
* the page content. *@
@content
</body>
</html>

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#!/usr/bin/env bash
### ------------------------------- ###
### Helper methods for BASH scripts ###
### ------------------------------- ###
realpath () {
(
TARGET_FILE="$1"
FIX_CYGPATH="$2"
cd "$(dirname "$TARGET_FILE")"
TARGET_FILE=$(basename "$TARGET_FILE")
COUNT=0
while [ -L "$TARGET_FILE" -a $COUNT -lt 100 ]
do
TARGET_FILE=$(readlink "$TARGET_FILE")
cd "$(dirname "$TARGET_FILE")"
TARGET_FILE=$(basename "$TARGET_FILE")
COUNT=$(($COUNT + 1))
done
# make sure we grab the actual windows path, instead of cygwin's path.
if [[ "x$FIX_CYGPATH" != "x" ]]; then
echo "$(cygwinpath "$(pwd -P)/$TARGET_FILE")"
else
echo "$(pwd -P)/$TARGET_FILE"
fi
)
}
# Uses uname to detect if we're in the odd cygwin environment.
is_cygwin() {
local os=$(uname -s)
case "$os" in
CYGWIN*) return 0 ;;
*) return 1 ;;
esac
}
# TODO - Use nicer bash-isms here.
CYGWIN_FLAG=$(if is_cygwin; then echo true; else echo false; fi)
# This can fix cygwin style /cygdrive paths so we get the
# windows style paths.
cygwinpath() {
local file="$1"
if [[ "$CYGWIN_FLAG" == "true" ]]; then
echo $(cygpath -w $file)
else
echo $file
fi
}
# Make something URI friendly
make_url() {
url="$1"
local nospaces=${url// /%20}
if is_cygwin; then
echo "/${nospaces//\\//}"
else
echo "$nospaces"
fi
}
declare -a residual_args
declare -a java_args
declare -a scalac_args
declare -a sbt_commands
declare java_cmd=java
declare java_version
declare -r real_script_path="$(realpath "$0")"
declare -r sbt_home="$(realpath "$(dirname "$(dirname "$real_script_path")")")"
declare -r sbt_bin_dir="$(dirname "$real_script_path")"
declare -r app_version="1.3.10"
declare -r script_name=activator
declare -r java_opts=( "${ACTIVATOR_OPTS[@]}" "${SBT_OPTS[@]}" "${JAVA_OPTS[@]}" "${java_opts[@]}" )
userhome="$HOME"
if is_cygwin; then
# cygwin sets home to something f-d up, set to real windows homedir
userhome="$USERPROFILE"
fi
declare -r activator_user_home_dir="${userhome}/.activator"
declare -r java_opts_config_home="${activator_user_home_dir}/activatorconfig.txt"
declare -r java_opts_config_version="${activator_user_home_dir}/${app_version}/activatorconfig.txt"
echoerr () {
echo 1>&2 "$@"
}
vlog () {
[[ $verbose || $debug ]] && echoerr "$@"
}
dlog () {
[[ $debug ]] && echoerr "$@"
}
jar_file () {
echo "$(cygwinpath "${sbt_home}/libexec/activator-launch-${app_version}.jar")"
}
acquire_sbt_jar () {
sbt_jar="$(jar_file)"
if [[ ! -f "$sbt_jar" ]]; then
echoerr "Could not find launcher jar: $sbt_jar"
exit 2
fi
}
execRunner () {
# print the arguments one to a line, quoting any containing spaces
[[ $verbose || $debug ]] && echo "# Executing command line:" && {
for arg; do
if printf "%s\n" "$arg" | grep -q ' '; then
printf "\"%s\"\n" "$arg"
else
printf "%s\n" "$arg"
fi
done
echo ""
}
# THis used to be exec, but we loose the ability to re-hook stty then
# for cygwin... Maybe we should flag the feature here...
"$@"
}
addJava () {
dlog "[addJava] arg = '$1'"
java_args=( "${java_args[@]}" "$1" )
}
addSbt () {
dlog "[addSbt] arg = '$1'"
sbt_commands=( "${sbt_commands[@]}" "$1" )
}
addResidual () {
dlog "[residual] arg = '$1'"
residual_args=( "${residual_args[@]}" "$1" )
}
addDebugger () {
addJava "-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=$1"
}
get_mem_opts () {
# if we detect any of these settings in ${JAVA_OPTS} we need to NOT output our settings.
# The reason is the Xms/Xmx, if they don't line up, cause errors.
if [[ "${JAVA_OPTS}" == *-Xmx* ]] || [[ "${JAVA_OPTS}" == *-Xms* ]] || [[ "${JAVA_OPTS}" == *-XX:MaxPermSize* ]] || [[ "${JAVA_OPTS}" == *-XX:MaxMetaspaceSize* ]] || [[ "${JAVA_OPTS}" == *-XX:ReservedCodeCacheSize* ]]; then
echo ""
else
# a ham-fisted attempt to move some memory settings in concert
# so they need not be messed around with individually.
local mem=${1:-1024}
local codecache=$(( $mem / 8 ))
(( $codecache > 128 )) || codecache=128
(( $codecache < 512 )) || codecache=512
local class_metadata_size=$(( $codecache * 2 ))
local class_metadata_opt=$([[ "$java_version" < "1.8" ]] && echo "MaxPermSize" || echo "MaxMetaspaceSize")
echo "-Xms${mem}m -Xmx${mem}m -XX:ReservedCodeCacheSize=${codecache}m -XX:${class_metadata_opt}=${class_metadata_size}m"
fi
}
require_arg () {
local type="$1"
local opt="$2"
local arg="$3"
if [[ -z "$arg" ]] || [[ "${arg:0:1}" == "-" ]]; then
echo "$opt requires <$type> argument"
exit 1
fi
}
is_function_defined() {
declare -f "$1" > /dev/null
}
# If we're *not* running in a terminal, and we don't have any arguments, then we need to add the 'ui' parameter
detect_terminal_for_ui() {
[[ ! -t 0 ]] && [[ "${#residual_args}" == "0" ]] && {
addResidual "ui"
}
# SPECIAL TEST FOR MAC
[[ "$(uname)" == "Darwin" ]] && [[ "$HOME" == "$PWD" ]] && [[ "${#residual_args}" == "0" ]] && {
echo "Detected MAC OSX launched script...."
echo "Swapping to UI"
addResidual "ui"
}
}
process_args () {
while [[ $# -gt 0 ]]; do
case "$1" in
-h|-help) usage; exit 1 ;;
-v|-verbose) verbose=1 && shift ;;
-d|-debug) debug=1 && shift ;;
-ivy) require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
-mem) require_arg integer "$1" "$2" && sbt_mem="$2" && shift 2 ;;
-jvm-debug) require_arg port "$1" "$2" && addDebugger $2 && shift 2 ;;
-batch) exec </dev/null && shift ;;
-sbt-jar) require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
-sbt-version) require_arg version "$1" "$2" && sbt_version="$2" && shift 2 ;;
-java-home) require_arg path "$1" "$2" && java_cmd="$2/bin/java" && shift 2 ;;
-D*) addJava "$1" && shift ;;
-J*) addJava "${1:2}" && shift ;;
*) addResidual "$1" && shift ;;
esac
done
is_function_defined process_my_args && {
myargs=("${residual_args[@]}")
residual_args=()
process_my_args "${myargs[@]}"
}
java_version=$("$java_cmd" -Xmx512M -version 2>&1 | awk -F '"' '/version/ {print $2}')
vlog "[process_args] java_version = '$java_version'"
}
# Detect that we have java installed.
checkJava() {
local required_version="$1"
# Now check to see if it's a good enough version
if [[ "$java_version" == "" ]]; then
echo
echo No java installations was detected.
echo Please go to http://www.java.com/getjava/ and download
echo
exit 1
elif [[ ! "$java_version" > "$required_version" ]]; then
echo
echo The java installation you have is not up to date
echo $script_name requires at least version $required_version+, you have
echo version $java_version
echo
echo Please go to http://www.java.com/getjava/ and download
echo a valid Java Runtime and install before running $script_name.
echo
exit 1
fi
}
run() {
# no jar? download it.
[[ -f "$sbt_jar" ]] || acquire_sbt_jar "$sbt_version" || {
# still no jar? uh-oh.
echo "Download failed. Obtain the sbt-launch.jar manually and place it at $sbt_jar"
exit 1
}
# process the combined args, then reset "$@" to the residuals
process_args "$@"
detect_terminal_for_ui
set -- "${residual_args[@]}"
argumentCount=$#
# TODO - java check should be configurable...
checkJava "1.6"
#If we're in cygwin, we should use the windows config, and terminal hacks
if [[ "$CYGWIN_FLAG" == "true" ]]; then
stty -icanon min 1 -echo > /dev/null 2>&1
addJava "-Djline.terminal=jline.UnixTerminal"
addJava "-Dsbt.cygwin=true"
fi
# run sbt
execRunner "$java_cmd" \
"-Dactivator.home=$(make_url "$sbt_home")" \
${SBT_OPTS:-$default_sbt_opts} \
$(get_mem_opts $sbt_mem) \
${JAVA_OPTS} \
${java_args[@]} \
-jar "$sbt_jar" \
"${sbt_commands[@]}" \
"${residual_args[@]}"
exit_code=$?
# Clean up the terminal from cygwin hacks.
if [[ "$CYGWIN_FLAG" == "true" ]]; then
stty icanon echo > /dev/null 2>&1
fi
exit $exit_code
}
declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"
declare -r sbt_opts_file=".sbtopts"
declare -r etc_sbt_opts_file="${sbt_home}/conf/sbtopts"
declare -r win_sbt_opts_file="${sbt_home}/conf/sbtconfig.txt"
usage() {
cat <<EOM
Usage: $script_name [options]
Command:
ui Start the Activator UI
new [name] [template-id] Create a new project with [name] using template [template-id]
list-templates Print all available template names
Options:
-h | -help print this message
-v | -verbose this runner is chattier
-d | -debug set sbt log level to debug
-no-colors disable ANSI color codes
-sbt-create start sbt even if current directory contains no sbt project
-sbt-dir <path> path to global settings/plugins directory (default: ~/.sbt)
-sbt-boot <path> path to shared boot directory (default: ~/.sbt/boot in 0.11 series)
-ivy <path> path to local Ivy repository (default: ~/.ivy2)
-mem <integer> set memory options (default: $sbt_mem, which is $(get_mem_opts $sbt_mem))
-no-share use all local caches; no sharing
-no-global uses global caches, but does not use global ~/.sbt directory.
-jvm-debug <port> Turn on JVM debugging, open at the given port.
-batch Disable interactive mode
# sbt version (default: from project/build.properties if present, else latest release)
-sbt-version <version> use the specified version of sbt
-sbt-jar <path> use the specified jar as the sbt launcher
-sbt-rc use an RC version of sbt
-sbt-snapshot use a snapshot version of sbt
# java version (default: java from PATH, currently $(java -version 2>&1 | grep version))
-java-home <path> alternate JAVA_HOME
# jvm options and output control
JAVA_OPTS environment variable, if unset uses "$java_opts"
SBT_OPTS environment variable, if unset uses "$default_sbt_opts"
ACTIVATOR_OPTS Environment variable, if unset uses ""
.sbtopts if this file exists in the current directory, it is
prepended to the runner args
/etc/sbt/sbtopts if this file exists, it is prepended to the runner args
-Dkey=val pass -Dkey=val directly to the java runtime
-J-X pass option -X directly to the java runtime
(-J is stripped)
-S-X add -X to sbt's scalacOptions (-S is stripped)
In the case of duplicated or conflicting options, the order above
shows precedence: JAVA_OPTS lowest, command line options highest.
EOM
}
process_my_args () {
while [[ $# -gt 0 ]]; do
case "$1" in
-no-colors) addJava "-Dsbt.log.noformat=true" && shift ;;
-no-share) addJava "$noshare_opts" && shift ;;
-no-global) addJava "-Dsbt.global.base=$(pwd)/project/.sbtboot" && shift ;;
-sbt-boot) require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
-sbt-dir) require_arg path "$1" "$2" && addJava "-Dsbt.global.base=$2" && shift 2 ;;
-debug-inc) addJava "-Dxsbt.inc.debug=true" && shift ;;
-batch) exec </dev/null && shift ;;
-sbt-create) sbt_create=true && shift ;;
*) addResidual "$1" && shift ;;
esac
done
# Now, ensure sbt version is used.
[[ "${sbt_version}XXX" != "XXX" ]] && addJava "-Dsbt.version=$sbt_version"
}
loadConfigFile() {
cat "$1" | sed '/^\#/d' | while read line; do
eval echo $line
done
}
# TODO - Pull in config based on operating system... (MSYS + cygwin should pull in txt file).
# Here we pull in the global settings configuration.
[[ -f "$etc_sbt_opts_file" ]] && set -- $(loadConfigFile "$etc_sbt_opts_file") "$@"
# -- Windows behavior stub'd
# JAVA_OPTS=$(cat "$WDIR/sbtconfig.txt" | sed -e 's/\r//g' -e 's/^#.*$//g' | sed ':a;N;$!ba;s/\n/ /g')
# Pull in the project-level config file, if it exists.
[[ -f "$sbt_opts_file" ]] && set -- $(loadConfigFile "$sbt_opts_file") "$@"
# if configuration files exist, prepend their contents to the java args so it can be processed by this runner
# a "versioned" config trumps one on the top level
if [[ -f "$java_opts_config_version" ]]; then
addConfigOpts $(loadConfigFile "$java_opts_config_version")
elif [[ -f "$java_opts_config_home" ]]; then
addConfigOpts $(loadConfigFile "$java_opts_config_home")
fi
run "$@"

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@REM activator launcher script
@REM
@REM Environment:
@REM In order for Activator to work you must have Java available on the classpath
@REM JAVA_HOME - location of a JDK home dir (optional if java on path)
@REM CFG_OPTS - JVM options (optional)
@REM Configuration:
@REM activatorconfig.txt found in the ACTIVATOR_HOME or ACTIVATOR_HOME/ACTIVATOR_VERSION
@setlocal enabledelayedexpansion
@echo off
set "var1=%~1"
if defined var1 (
if "%var1%"=="help" (
echo.
echo Usage activator [options] [command]
echo.
echo Commands:
echo ui Start the Activator UI
echo new [name] [template-id] Create a new project with [name] using template [template-id]
echo list-templates Print all available template names
echo help Print this message
echo.
echo Options:
echo -jvm-debug [port] Turn on JVM debugging, open at the given port. Defaults to 9999 if no port given.
echo.
echo Environment variables ^(read from context^):
echo JAVA_OPTS Environment variable, if unset uses ""
echo SBT_OPTS Environment variable, if unset uses ""
echo ACTIVATOR_OPTS Environment variable, if unset uses ""
echo.
echo Please note that in order for Activator to work you must have Java available on the classpath
echo.
goto :end
)
)
@REM determine ACTIVATOR_HOME environment variable
set BIN_DIRECTORY=%~dp0
set BIN_DIRECTORY=%BIN_DIRECTORY:~0,-1%
for %%d in (%BIN_DIRECTORY%) do set ACTIVATOR_HOME=%%~dpd
set ACTIVATOR_HOME=%ACTIVATOR_HOME:~0,-1%
echo ACTIVATOR_HOME=%ACTIVATOR_HOME%
set ERROR_CODE=0
set APP_VERSION=1.3.10
set ACTIVATOR_LAUNCH_JAR=activator-launch-%APP_VERSION%.jar
rem Detect if we were double clicked, although theoretically A user could
rem manually run cmd /c
for %%x in (%cmdcmdline%) do if %%~x==/c set DOUBLECLICKED=1
set SBT_HOME=%BIN_DIRECTORY
rem Detect if we were double clicked, although theoretically A user could
rem manually run cmd /c
for %%x in (%cmdcmdline%) do if %%~x==/c set DOUBLECLICKED=1
rem FIRST we load the config file of extra options.
set FN=%SBT_HOME%\..\conf\sbtconfig.txt
set CFG_OPTS=
FOR /F "tokens=* eol=# usebackq delims=" %%i IN ("%FN%") DO (
set DO_NOT_REUSE_ME=%%i
rem ZOMG (Part #2) WE use !! here to delay the expansion of
rem CFG_OPTS, otherwise it remains "" for this loop.
set CFG_OPTS=!CFG_OPTS! !DO_NOT_REUSE_ME!
)
rem FIRST we load a config file of extra options (if there is one)
set "CFG_FILE_HOME=%UserProfile%\.activator\activatorconfig.txt"
set "CFG_FILE_VERSION=%UserProfile%\.activator\%APP_VERSION%\activatorconfig.txt"
if exist %CFG_FILE_VERSION% (
FOR /F "tokens=* eol=# usebackq delims=" %%i IN ("%CFG_FILE_VERSION%") DO (
set DO_NOT_REUSE_ME=%%i
rem ZOMG (Part #2) WE use !! here to delay the expansion of
rem CFG_OPTS, otherwise it remains "" for this loop.
set CFG_OPTS=!CFG_OPTS! !DO_NOT_REUSE_ME!
)
)
if "%CFG_OPTS%"=="" (
if exist %CFG_FILE_HOME% (
FOR /F "tokens=* eol=# usebackq delims=" %%i IN ("%CFG_FILE_HOME%") DO (
set DO_NOT_REUSE_ME=%%i
rem ZOMG (Part #2) WE use !! here to delay the expansion of
rem CFG_OPTS, otherwise it remains "" for this loop.
set CFG_OPTS=!CFG_OPTS! !DO_NOT_REUSE_ME!
)
)
)
rem We use the value of the JAVACMD environment variable if defined
set _JAVACMD=%JAVACMD%
if "%_JAVACMD%"=="" (
if not "%JAVA_HOME%"=="" (
if exist "%JAVA_HOME%\bin\java.exe" set "_JAVACMD=%JAVA_HOME%\bin\java.exe"
rem if there is a java home set we make sure it is the first picked up when invoking 'java'
SET "PATH=%JAVA_HOME%\bin;%PATH%"
)
)
if "%_JAVACMD%"=="" set _JAVACMD=java
rem Detect if this java is ok to use.
for /F %%j in ('"%_JAVACMD%" -version 2^>^&1') do (
if %%~j==java set JAVAINSTALLED=1
if %%~j==openjdk set JAVAINSTALLED=1
)
rem Detect the same thing about javac
if "%_JAVACCMD%"=="" (
if not "%JAVA_HOME%"=="" (
if exist "%JAVA_HOME%\bin\javac.exe" set "_JAVACCMD=%JAVA_HOME%\bin\javac.exe"
)
)
if "%_JAVACCMD%"=="" set _JAVACCMD=javac
for /F %%j in ('"%_JAVACCMD%" -version 2^>^&1') do (
if %%~j==javac set JAVACINSTALLED=1
)
rem BAT has no logical or, so we do it OLD SCHOOL! Oppan Redmond Style
set JAVAOK=true
if not defined JAVAINSTALLED set JAVAOK=false
if not defined JAVACINSTALLED set JAVAOK=false
if "%JAVAOK%"=="false" (
echo.
echo A Java JDK is not installed or can't be found.
if not "%JAVA_HOME%"=="" (
echo JAVA_HOME = "%JAVA_HOME%"
)
echo.
echo Please go to
echo http://www.oracle.com/technetwork/java/javase/downloads/index.html
echo and download a valid Java JDK and install before running Activator.
echo.
echo If you think this message is in error, please check
echo your environment variables to see if "java.exe" and "javac.exe" are
echo available via JAVA_HOME or PATH.
echo.
if defined DOUBLECLICKED pause
exit /B 1
)
rem Check what Java version is being used to determine what memory options to use
for /f "tokens=3" %%g in ('java -version 2^>^&1 ^| findstr /i "version"') do (
set JAVA_VERSION=%%g
)
rem Strips away the " characters
set JAVA_VERSION=%JAVA_VERSION:"=%
rem TODO Check if there are existing mem settings in JAVA_OPTS/CFG_OPTS and use those instead of the below
for /f "delims=. tokens=1-3" %%v in ("%JAVA_VERSION%") do (
set MAJOR=%%v
set MINOR=%%w
set BUILD=%%x
set META_SIZE=-XX:MetaspaceSize=64M -XX:MaxMetaspaceSize=256M
if "!MINOR!" LSS "8" (
set META_SIZE=-XX:PermSize=64M -XX:MaxPermSize=256M
)
set MEM_OPTS=!META_SIZE!
)
rem We use the value of the JAVA_OPTS environment variable if defined, rather than the config.
set _JAVA_OPTS=%JAVA_OPTS%
if "%_JAVA_OPTS%"=="" set _JAVA_OPTS=%CFG_OPTS%
set DEBUG_OPTS=
rem Loop through the arguments, building remaining args in args variable
set args=
:argsloop
if not "%~1"=="" (
rem Checks if the argument contains "-D" and if true, adds argument 1 with 2 and puts an equal sign between them.
rem This is done since batch considers "=" to be a delimiter so we need to circumvent this behavior with a small hack.
set arg1=%~1
if "!arg1:~0,2!"=="-D" (
set "args=%args% "%~1"="%~2""
shift
shift
goto argsloop
)
if "%~1"=="-jvm-debug" (
if not "%~2"=="" (
rem This piece of magic somehow checks that an argument is a number
for /F "delims=0123456789" %%i in ("%~2") do (
set var="%%i"
)
if defined var (
rem Not a number, assume no argument given and default to 9999
set JPDA_PORT=9999
) else (
rem Port was given, shift arguments
set JPDA_PORT=%~2
shift
)
) else (
set JPDA_PORT=9999
)
shift
set DEBUG_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=!JPDA_PORT!
goto argsloop
)
rem else
set "args=%args% "%~1""
shift
goto argsloop
)
:run
if "!args!"=="" (
if defined DOUBLECLICKED (
set CMDS="ui"
) else set CMDS=!args!
) else set CMDS=!args!
rem We add a / in front, so we get file:///C: instead of file://C:
rem Java considers the later a UNC path.
rem We also attempt a solid effort at making it URI friendly.
rem We don't even bother with UNC paths.
set JAVA_FRIENDLY_HOME_1=/!ACTIVATOR_HOME:\=/!
set JAVA_FRIENDLY_HOME=/!JAVA_FRIENDLY_HOME_1: =%%20!
rem Checks if the command contains spaces to know if it should be wrapped in quotes or not
set NON_SPACED_CMD=%_JAVACMD: =%
if "%_JAVACMD%"=="%NON_SPACED_CMD%" %_JAVACMD% %DEBUG_OPTS% %MEM_OPTS% %ACTIVATOR_OPTS% %SBT_OPTS% %_JAVA_OPTS% "-Dactivator.home=%JAVA_FRIENDLY_HOME%" -jar "%ACTIVATOR_HOME%\libexec\%ACTIVATOR_LAUNCH_JAR%" %CMDS%
if NOT "%_JAVACMD%"=="%NON_SPACED_CMD%" "%_JAVACMD%" %DEBUG_OPTS% %MEM_OPTS% %ACTIVATOR_OPTS% %SBT_OPTS% %_JAVA_OPTS% "-Dactivator.home=%JAVA_FRIENDLY_HOME%" -jar "%ACTIVATOR_HOME%\libexec\%ACTIVATOR_LAUNCH_JAR%" %CMDS%
if ERRORLEVEL 1 goto error
goto end
:error
set ERROR_CODE=1
:end
@endlocal
exit /B %ERROR_CODE%

13
play-framework/student-api/build.sbt Normal file
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@ -0,0 +1,13 @@
name := """student-api"""
version := "1.0-SNAPSHOT"
lazy val root = (project in file(".")).enablePlugins(PlayJava)
scalaVersion := "2.11.7"
libraryDependencies ++= Seq(
javaJdbc,
cache,
javaWs
)

353
play-framework/student-api/conf/application.conf Normal file
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@ -0,0 +1,353 @@
# This is the main configuration file for the application.
# https://www.playframework.com/documentation/latest/ConfigFile
# ~~~~~
# Play uses HOCON as its configuration file format. HOCON has a number
# of advantages over other config formats, but there are two things that
# can be used when modifying settings.
#
# You can include other configuration files in this main application.conf file:
#include "extra-config.conf"
#
# You can declare variables and substitute for them:
#mykey = ${some.value}
#
# And if an environment variable exists when there is no other subsitution, then
# HOCON will fall back to substituting environment variable:
#mykey = ${JAVA_HOME}
## Akka
# https://www.playframework.com/documentation/latest/ScalaAkka#Configuration
# https://www.playframework.com/documentation/latest/JavaAkka#Configuration
# ~~~~~
# Play uses Akka internally and exposes Akka Streams and actors in Websockets and
# other streaming HTTP responses.
akka {
# "akka.log-config-on-start" is extraordinarly useful because it log the complete
# configuration at INFO level, including defaults and overrides, so it s worth
# putting at the very top.
#
# Put the following in your conf/logback.xml file:
#
# <logger name="akka.actor" level="INFO" />
#
# And then uncomment this line to debug the configuration.
#
#log-config-on-start = true
}
## Secret key
# http://www.playframework.com/documentation/latest/ApplicationSecret
# ~~~~~
# The secret key is used to sign Play's session cookie.
# This must be changed for production, but we don't recommend you change it in this file.
play.crypto.secret = "changeme"
## Modules
# https://www.playframework.com/documentation/latest/Modules
# ~~~~~
# Control which modules are loaded when Play starts. Note that modules are
# the replacement for "GlobalSettings", which are deprecated in 2.5.x.
# Please see https://www.playframework.com/documentation/latest/GlobalSettings
# for more information.
#
# You can also extend Play functionality by using one of the publically available
# Play modules: https://playframework.com/documentation/latest/ModuleDirectory
play.modules {
# By default, Play will load any class called Module that is defined
# in the root package (the "app" directory), or you can define them
# explicitly below.
# If there are any built-in modules that you want to disable, you can list them here.
#enabled += my.application.Module
# If there are any built-in modules that you want to disable, you can list them here.
#disabled += ""
}
## IDE
# https://www.playframework.com/documentation/latest/IDE
# ~~~~~
# Depending on your IDE, you can add a hyperlink for errors that will jump you
# directly to the code location in the IDE in dev mode. The following line makes
# use of the IntelliJ IDEA REST interface:
#play.editor="http://localhost:63342/api/file/?file=%s&line=%s"
## Internationalisation
# https://www.playframework.com/documentation/latest/JavaI18N
# https://www.playframework.com/documentation/latest/ScalaI18N
# ~~~~~
# Play comes with its own i18n settings, which allow the user's preferred language
# to map through to internal messages, or allow the language to be stored in a cookie.
play.i18n {
# The application languages
langs = [ "en" ]
# Whether the language cookie should be secure or not
#langCookieSecure = true
# Whether the HTTP only attribute of the cookie should be set to true
#langCookieHttpOnly = true
}
## Play HTTP settings
# ~~~~~
play.http {
## Router
# https://www.playframework.com/documentation/latest/JavaRouting
# https://www.playframework.com/documentation/latest/ScalaRouting
# ~~~~~
# Define the Router object to use for this application.
# This router will be looked up first when the application is starting up,
# so make sure this is the entry point.
# Furthermore, it's assumed your route file is named properly.
# So for an application router like `my.application.Router`,
# you may need to define a router file `conf/my.application.routes`.
# Default to Routes in the root package (aka "apps" folder) (and conf/routes)
#router = my.application.Router
## Action Creator
# https://www.playframework.com/documentation/latest/JavaActionCreator
# ~~~~~
#actionCreator = null
## ErrorHandler
# https://www.playframework.com/documentation/latest/JavaRouting
# https://www.playframework.com/documentation/latest/ScalaRouting
# ~~~~~
# If null, will attempt to load a class called ErrorHandler in the root package,
#errorHandler = null
## Filters
# https://www.playframework.com/documentation/latest/ScalaHttpFilters
# https://www.playframework.com/documentation/latest/JavaHttpFilters
# ~~~~~
# Filters run code on every request. They can be used to perform
# common logic for all your actions, e.g. adding common headers.
# Defaults to "Filters" in the root package (aka "apps" folder)
# Alternatively you can explicitly register a class here.
#filters = my.application.Filters
## Session & Flash
# https://www.playframework.com/documentation/latest/JavaSessionFlash
# https://www.playframework.com/documentation/latest/ScalaSessionFlash
# ~~~~~
session {
# Sets the cookie to be sent only over HTTPS.
#secure = true
# Sets the cookie to be accessed only by the server.
#httpOnly = true
# Sets the max-age field of the cookie to 5 minutes.
# NOTE: this only sets when the browser will discard the cookie. Play will consider any
# cookie value with a valid signature to be a valid session forever. To implement a server side session timeout,
# you need to put a timestamp in the session and check it at regular intervals to possibly expire it.
#maxAge = 300
# Sets the domain on the session cookie.
#domain = "example.com"
}
flash {
# Sets the cookie to be sent only over HTTPS.
#secure = true
# Sets the cookie to be accessed only by the server.
#httpOnly = true
}
}
## Netty Provider
# https://www.playframework.com/documentation/latest/SettingsNetty
# ~~~~~
play.server.netty {
# Whether the Netty wire should be logged
#log.wire = true
# If you run Play on Linux, you can use Netty's native socket transport
# for higher performance with less garbage.
#transport = "native"
}
## WS (HTTP Client)
# https://www.playframework.com/documentation/latest/ScalaWS#Configuring-WS
# ~~~~~
# The HTTP client primarily used for REST APIs. The default client can be
# configured directly, but you can also create different client instances
# with customized settings. You must enable this by adding to build.sbt:
#
# libraryDependencies += ws // or javaWs if using java
#
play.ws {
# Sets HTTP requests not to follow 302 requests
#followRedirects = false
# Sets the maximum number of open HTTP connections for the client.
#ahc.maxConnectionsTotal = 50
## WS SSL
# https://www.playframework.com/documentation/latest/WsSSL
# ~~~~~
ssl {
# Configuring HTTPS with Play WS does not require programming. You can
# set up both trustManager and keyManager for mutual authentication, and
# turn on JSSE debugging in development with a reload.
#debug.handshake = true
#trustManager = {
# stores = [
# { type = "JKS", path = "exampletrust.jks" }
# ]
#}
}
}
## Cache
# https://www.playframework.com/documentation/latest/JavaCache
# https://www.playframework.com/documentation/latest/ScalaCache
# ~~~~~
# Play comes with an integrated cache API that can reduce the operational
# overhead of repeated requests. You must enable this by adding to build.sbt:
#
# libraryDependencies += cache
#
play.cache {
# If you want to bind several caches, you can bind the individually
#bindCaches = ["db-cache", "user-cache", "session-cache"]
}
## Filters
# https://www.playframework.com/documentation/latest/Filters
# ~~~~~
# There are a number of built-in filters that can be enabled and configured
# to give Play greater security. You must enable this by adding to build.sbt:
#
# libraryDependencies += filters
#
play.filters {
## CORS filter configuration
# https://www.playframework.com/documentation/latest/CorsFilter
# ~~~~~
# CORS is a protocol that allows web applications to make requests from the browser
# across different domains.
# NOTE: You MUST apply the CORS configuration before the CSRF filter, as CSRF has
# dependencies on CORS settings.
cors {
# Filter paths by a whitelist of path prefixes
#pathPrefixes = ["/some/path", ...]
# The allowed origins. If null, all origins are allowed.
#allowedOrigins = ["http://www.example.com"]
# The allowed HTTP methods. If null, all methods are allowed
#allowedHttpMethods = ["GET", "POST"]
}
## CSRF Filter
# https://www.playframework.com/documentation/latest/ScalaCsrf#Applying-a-global-CSRF-filter
# https://www.playframework.com/documentation/latest/JavaCsrf#Applying-a-global-CSRF-filter
# ~~~~~
# Play supports multiple methods for verifying that a request is not a CSRF request.
# The primary mechanism is a CSRF token. This token gets placed either in the query string
# or body of every form submitted, and also gets placed in the users session.
# Play then verifies that both tokens are present and match.
csrf {
# Sets the cookie to be sent only over HTTPS
#cookie.secure = true
# Defaults to CSRFErrorHandler in the root package.
#errorHandler = MyCSRFErrorHandler
}
## Security headers filter configuration
# https://www.playframework.com/documentation/latest/SecurityHeaders
# ~~~~~
# Defines security headers that prevent XSS attacks.
# If enabled, then all options are set to the below configuration by default:
headers {
# The X-Frame-Options header. If null, the header is not set.
#frameOptions = "DENY"
# The X-XSS-Protection header. If null, the header is not set.
#xssProtection = "1; mode=block"
# The X-Content-Type-Options header. If null, the header is not set.
#contentTypeOptions = "nosniff"
# The X-Permitted-Cross-Domain-Policies header. If null, the header is not set.
#permittedCrossDomainPolicies = "master-only"
# The Content-Security-Policy header. If null, the header is not set.
#contentSecurityPolicy = "default-src 'self'"
}
## Allowed hosts filter configuration
# https://www.playframework.com/documentation/latest/AllowedHostsFilter
# ~~~~~
# Play provides a filter that lets you configure which hosts can access your application.
# This is useful to prevent cache poisoning attacks.
hosts {
# Allow requests to example.com, its subdomains, and localhost:9000.
#allowed = [".example.com", "localhost:9000"]
}
}
## Evolutions
# https://www.playframework.com/documentation/latest/Evolutions
# ~~~~~
# Evolutions allows database scripts to be automatically run on startup in dev mode
# for database migrations. You must enable this by adding to build.sbt:
#
# libraryDependencies += evolutions
#
play.evolutions {
# You can disable evolutions for a specific datasource if necessary
#db.default.enabled = false
}
## Database Connection Pool
# https://www.playframework.com/documentation/latest/SettingsJDBC
# ~~~~~
# Play doesn't require a JDBC database to run, but you can easily enable one.
#
# libraryDependencies += jdbc
#
play.db {
# The combination of these two settings results in "db.default" as the
# default JDBC pool:
#config = "db"
#default = "default"
# Play uses HikariCP as the default connection pool. You can override
# settings by changing the prototype:
prototype {
# Sets a fixed JDBC connection pool size of 50
#hikaricp.minimumIdle = 50
#hikaricp.maximumPoolSize = 50
}
}
## JDBC Datasource
# https://www.playframework.com/documentation/latest/JavaDatabase
# https://www.playframework.com/documentation/latest/ScalaDatabase
# ~~~~~
# Once JDBC datasource is set up, you can work with several different
# database options:
#
# Slick (Scala preferred option): https://www.playframework.com/documentation/latest/PlaySlick
# JPA (Java preferred option): https://playframework.com/documentation/latest/JavaJPA
# EBean: https://playframework.com/documentation/latest/JavaEbean
# Anorm: https://www.playframework.com/documentation/latest/ScalaAnorm
#
db {
# You can declare as many datasources as you want.
# By convention, the default datasource is named `default`
# https://www.playframework.com/documentation/latest/Developing-with-the-H2-Database
#default.driver = org.h2.Driver
#default.url = "jdbc:h2:mem:play"
#default.username = sa
#default.password = ""
# You can turn on SQL logging for any datasource
# https://www.playframework.com/documentation/latest/Highlights25#Logging-SQL-statements
#default.logSql=true
}

41
play-framework/student-api/conf/logback.xml Normal file
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@ -0,0 +1,41 @@
<!-- https://www.playframework.com/documentation/latest/SettingsLogger -->
<configuration>
<conversionRule conversionWord="coloredLevel" converterClass="play.api.libs.logback.ColoredLevel" />
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>${application.home:-.}/logs/application.log</file>
<encoder>
<pattern>%date [%level] from %logger in %thread - %message%n%xException</pattern>
</encoder>
</appender>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%coloredLevel %logger{15} - %message%n%xException{10}</pattern>
</encoder>
</appender>
<appender name="ASYNCFILE" class="ch.qos.logback.classic.AsyncAppender">
<appender-ref ref="FILE" />
</appender>
<appender name="ASYNCSTDOUT" class="ch.qos.logback.classic.AsyncAppender">
<appender-ref ref="STDOUT" />
</appender>
<logger name="play" level="INFO" />
<logger name="application" level="DEBUG" />
<!-- Off these ones as they are annoying, and anyway we manage configuration ourselves -->
<logger name="com.avaje.ebean.config.PropertyMapLoader" level="OFF" />
<logger name="com.avaje.ebeaninternal.server.core.XmlConfigLoader" level="OFF" />
<logger name="com.avaje.ebeaninternal.server.lib.BackgroundThread" level="OFF" />
<logger name="com.gargoylesoftware.htmlunit.javascript" level="OFF" />
<root level="WARN">
<appender-ref ref="ASYNCFILE" />
<appender-ref ref="ASYNCSTDOUT" />
</root>
</configuration>

12
play-framework/student-api/conf/routes Normal file
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@ -0,0 +1,12 @@
# Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~
GET / controllers.StudentController.listStudents()
POST /:id controllers.StudentController.retrieve(id:Int)
POST / controllers.StudentController.create()
PUT / controllers.StudentController.update()
DELETE /:id controllers.StudentController.delete(id:Int)
# Map static resources from the /public folder to the /assets URL path
GET /assets/*file controllers.Assets.versioned(path="/public", file: Asset)

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4
play-framework/student-api/project/build.properties Normal file
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@ -0,0 +1,4 @@
#Activator-generated Properties
#Wed Sep 07 12:29:40 EAT 2016
template.uuid=c373963b-f5ad-433b-8e74-178e7ae25b1c
sbt.version=0.13.11

21
play-framework/student-api/project/plugins.sbt Normal file
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@ -0,0 +1,21 @@
// The Play plugin
addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.5.6")
// Web plugins
addSbtPlugin("com.typesafe.sbt" % "sbt-coffeescript" % "1.0.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-less" % "1.1.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-jshint" % "1.0.3")
addSbtPlugin("com.typesafe.sbt" % "sbt-rjs" % "1.0.7")
addSbtPlugin("com.typesafe.sbt" % "sbt-digest" % "1.1.0")
addSbtPlugin("com.typesafe.sbt" % "sbt-mocha" % "1.1.0")
addSbtPlugin("org.irundaia.sbt" % "sbt-sassify" % "1.4.2")
// Play enhancer - this automatically generates getters/setters for public fields
// and rewrites accessors of these fields to use the getters/setters. Remove this
// plugin if you prefer not to have this feature, or disable on a per project
// basis using disablePlugins(PlayEnhancer) in your build.sbt
addSbtPlugin("com.typesafe.sbt" % "sbt-play-enhancer" % "1.1.0")
// Play Ebean support, to enable, uncomment this line, and enable in your build.sbt using
// enablePlugins(PlayEbean).
// addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "1.0.0")

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play-framework/student-api/public/javascripts/hello.js Normal file
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@ -0,0 +1,3 @@
if (window.console) {
console.log("Welcome to your Play application's JavaScript!");
}

0
spring-cloud-data-flow/data-flow-server/src/main/resources/application.properties → play-framework/student-api/public/stylesheets/main.css
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45
play-framework/student-api/test/ApplicationTest.java Normal file
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@ -0,0 +1,45 @@
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.fasterxml.jackson.databind.JsonNode;
import org.junit.*;
import play.mvc.*;
import play.test.*;
import play.data.DynamicForm;
import play.data.validation.ValidationError;
import play.data.validation.Constraints.RequiredValidator;
import play.i18n.Lang;
import play.libs.F;
import play.libs.F.*;
import play.twirl.api.Content;
import static play.test.Helpers.*;
import static org.junit.Assert.*;
/**
*
* Simple (JUnit) tests that can call all parts of a play app.
* If you are interested in mocking a whole application, see the wiki for more details.
*
*/
public class ApplicationTest {
@Test
public void simpleCheck() {
int a = 1 + 1;
assertEquals(2, a);
}
@Test
public void renderTemplate() {
Content html = views.html.index.render("Your new application is ready.");
assertEquals("text/html", html.contentType());
assertTrue(html.body().contains("Your new application is ready."));
}
}

25
play-framework/student-api/test/IntegrationTest.java Normal file
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@ -0,0 +1,25 @@
import org.junit.*;
import play.mvc.*;
import play.test.*;
import static play.test.Helpers.*;
import static org.junit.Assert.*;
import static org.fluentlenium.core.filter.FilterConstructor.*;
public class IntegrationTest {
/**
* add your integration test here
* in this example we just check if the welcome page is being shown
*/
@Test
public void test() {
running(testServer(3333, fakeApplication(inMemoryDatabase())), HTMLUNIT, browser -> {
browser.goTo("http://localhost:3333");
assertTrue(browser.pageSource().contains("Your new application is ready."));
});
}
}

36
pom.xml
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@ -1,5 +1,5 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
@ -16,16 +16,22 @@
<modules>
<module>assertj</module>
<module>apache-cxf</module>
<module>apache-fop</module>
<!-- <module>apache-fop</module> --> <!-- TODO: has a compilation issue -->
<module>autovalue-tutorial</module>
<module>cdi</module>
<module>core-java</module>
<module>core-java-8</module>
<!-- <module>core-java-9</module> -->
<module>couchbase-sdk-intro</module>
<module>couchbase-sdk-spring-service</module>
<module>dozer</module>
<module>dependency-injection</module>
<module>deltaspike</module>
<module>enterprise-patterns</module>
<module>feign-client</module>
<!-- <module>gatling</module> --> <!-- not meant to run as part of the standard build -->
<module>gson</module>
@ -33,9 +39,12 @@
<module>guava</module>
<module>guava18</module>
<module>guava19</module>
<module>handling-spring-static-resources</module>
<module>httpclient</module>
<module>immutables</module>
<module>jackson</module>
<module>javaxval</module>
<module>jjwt</module>
@ -44,16 +53,23 @@
<module>json</module>
<module>json-path</module>
<module>junit5</module>
<module>mockito</module>
<module>mocks</module>
<module>jee7schedule</module>
<!-- <module>jpa-storedprocedure</module> -->
<module>log4j</module>
<module>mockito</module>
<module>mocks</module>
<module>mutation-testing</module>
<module>orika</module>
<module>querydsl</module>
<!-- <module>raml</module> -->
<module>rest-assured</module>
<module>rest-testing</module>
<module>resteasy</module>
<module>log4j</module>
<module>spring-all</module>
<module>spring-akka</module>
@ -89,6 +105,7 @@
<module>spring-rest-angular</module>
<module>spring-rest-docs</module>
<module>spring-cloud</module>
<module>spring-cloud-data-flow</module>
<module>spring-security-basic-auth</module>
<module>spring-security-custom-permission</module>
@ -106,17 +123,16 @@
<module>spring-security-x509</module>
<module>spring-thymeleaf</module>
<module>spring-zuul</module>
<module>spring-mvc-velocity</module>
<module>jsf</module>
<module>xml</module>
<module>lombok</module>
<module>redis</module>
<module>mutation-testing</module>
<module>spring-mvc-velocity</module>
<module>wicket</module>
<module>xstream</module>
<module>dozer</module>
<module>orika</module>
<module>java-cassandra</module>
</modules>
</project>

36
selenium-junit-testng/pom.xml Normal file
View File

@ -0,0 +1,36 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>selenium-junit-testng</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.53.1</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.1</version>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.9.10</version>
</dependency>
</dependencies>
</project>

29
selenium-junit-testng/src/main/java/com/baeldung/selenium/SeleniumExample.java Normal file
View File

@ -0,0 +1,29 @@
package main.java.com.baeldung.selenium;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
public class SeleniumExample {
private WebDriver webDriver;
private final String url = "http://www.baeldung.com/";
private final String expectedTitle = "Baeldung | Java, Spring and Web Development tutorials";
public SeleniumExample() {
webDriver = new FirefoxDriver();
webDriver.get(url);
}
public void closeWindow() {
webDriver.close();
}
public String getActualTitle() {
return webDriver.getTitle();
}
public String getExpectedTitle() {
return expectedTitle;
}
}

30
selenium-junit-testng/src/test/java/com/baeldung/selenium/junit/TestSeleniumWithJUnit.java Normal file
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@ -0,0 +1,30 @@
package test.java.com.baeldung.selenium.junit;
import static org.testng.Assert.assertEquals;
import main.java.com.baeldung.selenium.SeleniumExample;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class TestSeleniumWithJUnit {
private SeleniumExample seleniumExample;
@Before
public void setUp() {
seleniumExample = new SeleniumExample();
}
@After
public void tearDown() {
seleniumExample.closeWindow();
}
@Test
public void whenPageIsLoaded_thenTitleIsAsPerExpectation() {
String expectedTitle = seleniumExample.getExpectedTitle();
String actualTitle = seleniumExample.getActualTitle();
assertEquals(actualTitle, expectedTitle);
}
}

30
selenium-junit-testng/src/test/java/com/baeldung/selenium/testng/TestSeleniumWithTestNG.java Normal file
View File

@ -0,0 +1,30 @@
package test.java.com.baeldung.selenium.testng;
import static org.testng.Assert.assertEquals;
import main.java.com.baeldung.selenium.SeleniumExample;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;
public class TestSeleniumWithTestNG {
private SeleniumExample seleniumExample;
@BeforeSuite
public void setUp() {
seleniumExample = new SeleniumExample();
}
@AfterSuite
public void tearDown() {
seleniumExample.closeWindow();
}
@Test
public void whenPageIsLoaded_thenTitleIsAsPerExpectation() {
String expectedTitle = seleniumExample.getExpectedTitle();
String actualTitle = seleniumExample.getActualTitle();
assertEquals(actualTitle, expectedTitle);
}
}

34
selenium-junit-testng/test/com/baeldun/selenium/testng/TestSeleniumWithTestNG.java Normal file
View File

@ -0,0 +1,34 @@
package com.baeldun.selenium.testng;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;
public class TestSeleniumWithTestNG {
private WebDriver webDriver;
private final String url = "http://www.baeldung.com/";
private final String expectedTitle = "Baeldung | Java, Spring and Web Development tutorials";
@BeforeSuite
public void setUp() {
webDriver = new FirefoxDriver();
webDriver.get(url);
}
@AfterSuite
public void tearDown() {
webDriver.close();
}
@Test
public void whenPageIsLoaded_thenTitleIsAsPerExpectation() {
String actualTitleReturned = webDriver.getTitle();
assertNotNull(actualTitleReturned);
assertEquals(expectedTitle, actualTitleReturned);
}
}

34
selenium-junit-testng/test/com/baeldung/selenium/junit/TestSeleniumWithJUnit.java Normal file
View File

@ -0,0 +1,34 @@
package com.baeldung.selenium.junit;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
public class TestSeleniumWithJUnit {
private WebDriver webDriver;
private final String url = "http://www.baeldung.com/";
private final String expectedTitle = "Baeldung | Java, Spring and Web Development tutorials";
@Before
public void setUp() {
webDriver = new FirefoxDriver();
webDriver.get(url);
}
@After
public void tearDown() {
webDriver.close();
}
@Test
public void whenPageIsLoaded_thenTitleIsAsPerExpectation() {
String actualTitleReturned = webDriver.getTitle();
assertNotNull(actualTitleReturned);
assertEquals(expectedTitle, actualTitleReturned);
}
}

2
spring-cloud-config/client-config/config-client-development.properties
View File

@ -1,2 +0,0 @@
user.role=Developer
user.password=pass

1
spring-cloud-config/client-config/config-client-production.properties
View File

@ -1 +0,0 @@
user.role=User

4
spring-cloud-config/docker/Dockerfile
View File

@ -1,4 +0,0 @@
FROM alpine:edge
MAINTAINER baeldung.com
RUN apk add --no-cache openjdk8
COPY files/UnlimitedJCEPolicyJDK8/* /usr/lib/jvm/java-1.8-openjdk/jre/lib/security/

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