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java-tutorials
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Merge remote-tracking branch 'eugenp/master'

This commit is contained in:
DOHA 2018-03-01 13:24:36 +02:00
parent 1d42f7c9bd 00f5648b39
commit 237ea1b565
79 changed files with 1933 additions and 431 deletions
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30
apache-zookeeper/pom.xml Normal file
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@ -0,0 +1,30 @@
<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>apache-zookeeper</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.3.2</version>
<exclusions>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
</project>

33
apache-zookeeper/src/main/java/com/baeldung/zookeeper/connection/ZKConnection.java Normal file
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package com.baeldung.zookeeper.connection;
import java.io.IOException;
import java.util.concurrent.CountDownLatch;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.Watcher.Event.KeeperState;
import org.apache.zookeeper.ZooKeeper;
public class ZKConnection {
private ZooKeeper zoo;
final CountDownLatch connectionLatch = new CountDownLatch(1);
public ZKConnection() {
}
public ZooKeeper connect(String host) throws IOException, InterruptedException {
zoo = new ZooKeeper(host, 2000, new Watcher() {
public void process(WatchedEvent we) {
if (we.getState() == KeeperState.SyncConnected) {
connectionLatch.countDown();
}
}
});
connectionLatch.await();
return zoo;
}
public void close() throws InterruptedException {
zoo.close();
}
}

35
apache-zookeeper/src/main/java/com/baeldung/zookeeper/manager/ZKManager.java Normal file
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@ -0,0 +1,35 @@
package com.baeldung.zookeeper.manager;
import org.apache.zookeeper.KeeperException;
public interface ZKManager {
/**
* Create a Znode and save some data
*
* @param path
* @param data
* @throws KeeperException
* @throws InterruptedException
*/
public void create(String path, byte[] data) throws KeeperException, InterruptedException;
/**
* Get ZNode Data
*
* @param path
* @param boolean watchFlag
* @throws KeeperException
* @throws InterruptedException
*/
public Object getZNodeData(String path, boolean watchFlag);
/**
* Update the ZNode Data
*
* @param path
* @param data
* @throws KeeperException
* @throws InterruptedException
*/
public void update(String path, byte[] data) throws KeeperException, InterruptedException, KeeperException;
}

58
apache-zookeeper/src/main/java/com/baeldung/zookeeper/manager/ZKManagerImpl.java Normal file
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@ -0,0 +1,58 @@
package com.baeldung.zookeeper.manager;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.ZooKeeper;
import com.baeldung.zookeeper.connection.ZKConnection;
public class ZKManagerImpl implements ZKManager {
private static ZooKeeper zkeeper;
private static ZKConnection zkConnection;
public ZKManagerImpl() {
initialize();
}
/** * Initialize connection */
private void initialize() {
try {
zkConnection = new ZKConnection();
zkeeper = zkConnection.connect("localhost");
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
public void closeConnection() {
try {
zkConnection.close();
} catch (InterruptedException e) {
System.out.println(e.getMessage());
}
}
public void create(String path, byte[] data) throws KeeperException, InterruptedException {
zkeeper.create(path, data, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
}
public Object getZNodeData(String path, boolean watchFlag) {
try {
byte[] b = null;
b = zkeeper.getData(path, null, null);
String data = new String(b, "UTF-8");
System.out.println(data);
return data;
} catch (Exception e) {
System.out.println(e.getMessage());
}
return null;
}
public void update(String path, byte[] data) throws KeeperException, InterruptedException {
int version = zkeeper.exists(path, true)
.getVersion();
zkeeper.setData(path, data, version);
}
}

13
core-groovy/build.gradle Normal file
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@ -0,0 +1,13 @@
group 'com.baeldung'
version '1.0-SNAPSHOT'
apply plugin: 'groovy'
repositories {
mavenCentral()
}
dependencies {
compile 'org.codehaus.groovy:groovy-all:2.5.0-alpha-1'
testCompile 'org.spockframework:spock-core:1.1-groovy-2.4'
}

20
core-groovy/pom.xml
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@ -1,6 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<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">
<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>
<artifactId>core-groovy</artifactId>
@ -24,12 +23,17 @@
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy</artifactId>
<version>2.4.13</version>
<version>2.5.0-alpha-1</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>2.5.0-alpha-1</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-sql</artifactId>
<version>2.4.13</version>
<version>2.5.0-alpha-1</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
@ -49,6 +53,12 @@
<version>2.4.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.spockframework</groupId>
<artifactId>spock-core</artifactId>
<version>1.1-groovy-2.4</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
@ -114,5 +124,5 @@
<junit.vintage.version>4.12.0</junit.vintage.version>
<junit4.version>4.12</junit4.version>
</properties>
</project>

7
core-groovy/src/main/groovy/com/baeldung/json/Account.groovy Normal file
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@ -0,0 +1,7 @@
package com.baeldung.json
class Account {
String id
BigDecimal value
Date createdAt
}

36
core-groovy/src/main/groovy/com/baeldung/json/JsonParser.groovy Normal file
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@ -0,0 +1,36 @@
package com.baeldung.json
import groovy.json.JsonGenerator
import groovy.json.JsonOutput
import groovy.json.JsonParserType
import groovy.json.JsonSlurper
class JsonParser {
Account toObject(String json) {
JsonSlurper jsonSlurper = new JsonSlurper()
jsonSlurper.parseText(json) as Account
}
Account toObjectWithIndexOverlay(String json) {
JsonSlurper jsonSlurper = new JsonSlurper(type: JsonParserType.INDEX_OVERLAY)
jsonSlurper.parseText(json) as Account
}
String toJson(Account account) {
JsonOutput.toJson(account)
}
String toJson(Account account, String dateFormat, String... fieldsToExclude) {
JsonGenerator generator = new JsonGenerator.Options()
.dateFormat(dateFormat)
.excludeFieldsByName(fieldsToExclude)
.build()
generator.toJson(account)
}
String prettyfy(String json) {
JsonOutput.prettyPrint(json)
}
}

80
core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy Normal file
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@ -0,0 +1,80 @@
package com.baeldung.json
import spock.lang.Specification
import java.text.SimpleDateFormat
class JsonParserTest extends Specification {
JsonParser jsonParser
void setup () {
jsonParser = new JsonParser()
}
def 'Should parse to Account given Json String' () {
given:
def json = '{"id":"1234","value":15.6}'
when:
def account = jsonParser.toObject(json)
then:
account
account instanceof Account
account.id == '1234'
account.value == 15.6
}
def 'Should parse to Account given Json String with date property' () {
given:
def json = '{"id":"1234","value":15.6,"createdAt":"2018-01-01T00:00:00+0000"}'
when:
def account = jsonParser.toObjectWithIndexOverlay(json)
then:
account
account instanceof Account
account.id == '1234'
account.value == 15.6
println account.createdAt
account.createdAt == Date.parse('yyyy-MM-dd', '2018-01-01')
}
def 'Should parse to Json given an Account object' () {
given:
Account account = new Account(
id: '123',
value: 15.6,
createdAt: new SimpleDateFormat('MM/dd/yyyy').parse('01/01/2018')
)
when:
def json = jsonParser.toJson(account)
then:
json
json == '{"value":15.6,"createdAt":"2018-01-01T00:00:00+0000","id":"123"}'
}
def 'Should parse to Json given an Account object, a date format and fields to exclude' () {
given:
Account account = new Account(
id: '123',
value: 15.6,
createdAt: new SimpleDateFormat('MM/dd/yyyy').parse('01/01/2018')
)
when:
def json = jsonParser.toJson(account, 'MM/dd/yyyy', 'value')
then:
json
json == '{"createdAt":"01/01/2018","id":"123"}'
}
def 'Should prettify given a json string' () {
given:
String json = '{"value":15.6,"createdAt":"01/01/2018","id":"123456"}'
when:
def jsonPretty = jsonParser.prettyfy(json)
then:
jsonPretty
jsonPretty == '{\n "value": 15.6,\n "createdAt": "01/01/2018",\n "id": "123456"\n}'
}
}

17
core-java-9/src/main/java/com/baeldung/java9/methodhandles/Book.java Normal file
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@ -0,0 +1,17 @@
package com.baeldung.java9.methodhandles;
public class Book {
String id;
String title;
public Book(String id, String title) {
this.id = id;
this.title = title;
}
@SuppressWarnings("unused")
private String formatBook() {
return id + " > " + title;
}
}

152
core-java-9/src/test/java/com/baeldung/java9/methodhandles/MethodHandlesTest.java Normal file
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@ -0,0 +1,152 @@
package com.baeldung.java9.methodhandles;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.*;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.lang.invoke.WrongMethodTypeException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.List;
import org.junit.Test;
/**
* Test case for the {@link MethodHandles} API
*/
public class MethodHandlesTest {
@Test
public void givenConcatMethodHandle_whenInvoked_thenCorrectlyConcatenated() throws Throwable {
MethodHandles.Lookup publicLookup = MethodHandles.publicLookup();
MethodType mt = MethodType.methodType(String.class, String.class);
MethodHandle concatMH = publicLookup.findVirtual(String.class, "concat", mt);
String output = (String) concatMH.invoke("Effective ", "Java");
assertEquals("Effective Java", output);
}
@Test
public void givenAsListMethodHandle_whenInvokingWithArguments_thenCorrectlyInvoked() throws Throwable {
MethodHandles.Lookup publicLookup = MethodHandles.publicLookup();
MethodType mt = MethodType.methodType(List.class, Object[].class);
MethodHandle asListMH = publicLookup.findStatic(Arrays.class, "asList", mt);
List<Integer> list = (List<Integer>) asListMH.invokeWithArguments(1, 2);
assertThat(Arrays.asList(1, 2), is(list));
}
@Test
public void givenConstructorMethodHandle_whenInvoked_thenObjectCreatedCorrectly() throws Throwable {
MethodHandles.Lookup publicLookup = MethodHandles.publicLookup();
MethodType mt = MethodType.methodType(void.class, String.class);
MethodHandle newIntegerMH = publicLookup.findConstructor(Integer.class, mt);
Integer integer = (Integer) newIntegerMH.invoke("1");
assertEquals(1, integer.intValue());
}
@Test
public void givenAFieldWithoutGetter_whenCreatingAGetter_thenCorrectlyInvoked() throws Throwable {
MethodHandles.Lookup lookup = MethodHandles.lookup();
MethodHandle getTitleMH = lookup.findGetter(Book.class, "title", String.class);
Book book = new Book("ISBN-1234", "Effective Java");
assertEquals("Effective Java", getTitleMH.invoke(book));
}
@Test
public void givenPrivateMethod_whenCreatingItsMethodHandle_thenCorrectlyInvoked() throws Throwable {
MethodHandles.Lookup lookup = MethodHandles.lookup();
Method formatBookMethod = Book.class.getDeclaredMethod("formatBook");
formatBookMethod.setAccessible(true);
MethodHandle formatBookMH = lookup.unreflect(formatBookMethod);
Book book = new Book("ISBN-123", "Java in Action");
assertEquals("ISBN-123 > Java in Action", formatBookMH.invoke(book));
}
@Test
public void givenReplaceMethod_whenUsingReflectionAndInvoked_thenCorrectlyReplaced() throws Throwable {
Method replaceMethod = String.class.getMethod("replace", char.class, char.class);
String string = (String) replaceMethod.invoke("jovo", 'o', 'a');
assertEquals("java", string);
}
@Test
public void givenReplaceMethodHandle_whenInvoked_thenCorrectlyReplaced() throws Throwable {
MethodHandles.Lookup publicLookup = MethodHandles.publicLookup();
MethodType mt = MethodType.methodType(String.class, char.class, char.class);
MethodHandle replaceMH = publicLookup.findVirtual(String.class, "replace", mt);
String replacedString = (String) replaceMH.invoke("jovo", Character.valueOf('o'), 'a');
assertEquals("java", replacedString);
}
@Test
public void givenReplaceMethodHandle_whenInvokingExact_thenCorrectlyReplaced() throws Throwable {
MethodHandles.Lookup lookup = MethodHandles.lookup();
MethodType mt = MethodType.methodType(String.class, char.class, char.class);
MethodHandle replaceMH = lookup.findVirtual(String.class, "replace", mt);
String s = (String) replaceMH.invokeExact("jovo", 'o', 'a');
assertEquals("java", s);
}
@Test
public void givenSumMethodHandle_whenInvokingExact_thenSumIsCorrect() throws Throwable {
MethodHandles.Lookup lookup = MethodHandles.lookup();
MethodType mt = MethodType.methodType(int.class, int.class, int.class);
MethodHandle sumMH = lookup.findStatic(Integer.class, "sum", mt);
int sum = (int) sumMH.invokeExact(1, 11);
assertEquals(12, sum);
}
@Test(expected = WrongMethodTypeException.class)
public void givenSumMethodHandleAndIncompatibleArguments_whenInvokingExact_thenException() throws Throwable {
MethodHandles.Lookup lookup = MethodHandles.lookup();
MethodType mt = MethodType.methodType(int.class, int.class, int.class);
MethodHandle sumMH = lookup.findStatic(Integer.class, "sum", mt);
sumMH.invokeExact(Integer.valueOf(1), 11);
}
@Test
public void givenSpreadedEqualsMethodHandle_whenInvokedOnArray_thenCorrectlyEvaluated() throws Throwable {
MethodHandles.Lookup publicLookup = MethodHandles.publicLookup();
MethodType mt = MethodType.methodType(boolean.class, Object.class);
MethodHandle equalsMH = publicLookup.findVirtual(String.class, "equals", mt);
MethodHandle methodHandle = equalsMH.asSpreader(Object[].class, 2);
assertTrue((boolean) methodHandle.invoke(new Object[] { "java", "java" }));
assertFalse((boolean) methodHandle.invoke(new Object[] { "java", "jova" }));
}
@Test
public void givenConcatMethodHandle_whenBindToAString_thenCorrectlyConcatenated() throws Throwable {
MethodHandles.Lookup publicLookup = MethodHandles.publicLookup();
MethodType mt = MethodType.methodType(String.class, String.class);
MethodHandle concatMH = publicLookup.findVirtual(String.class, "concat", mt);
MethodHandle bindedConcatMH = concatMH.bindTo("Hello ");
assertEquals("Hello World!", bindedConcatMH.invoke("World!"));
}
}

1
core-java/README.md
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@ -128,3 +128,4 @@
- [Recursion In Java](http://www.baeldung.com/java-recursion)
- [A Guide to the finalize Method in Java](http://www.baeldung.com/java-finalize)
- [Compiling Java *.class Files with javac](http://www.baeldung.com/javac)
- [Method Overloading and Overriding in Java](http://www.baeldung.com/java-method-overload-override)

43
core-java/src/main/java/com/baeldung/inheritance/ArmoredCar.java Normal file
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@ -0,0 +1,43 @@
package com.baeldung.inheritance;
public class ArmoredCar extends Car implements Floatable, Flyable{
private int bulletProofWindows;
private String model;
public void remoteStartCar() {
// this vehicle can be started by using a remote control
}
public String registerModel() {
return model;
}
public String getAValue() {
return super.model; // returns value of model defined in base class Car
// return this.model; // will return value of model defined in ArmoredCar
// return model; // will return value of model defined in ArmoredCar
}
public static String msg() {
// return super.msg(); // this won't compile.
return "ArmoredCar";
}
@Override
public void floatOnWater() {
System.out.println("I can float!");
}
@Override
public void fly() {
System.out.println("I can fly!");
}
public void aMethod() {
// System.out.println(duration); // Won't compile
System.out.println(Floatable.duration); // outputs 10
System.out.println(Flyable.duration); // outputs 20
}
}

12
core-java/src/main/java/com/baeldung/inheritance/BMW.java Normal file
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@ -0,0 +1,12 @@
package com.baeldung.inheritance;
public class BMW extends Car {
public BMW() {
super(5, "BMW");
}
@Override
public String toString() {
return model;
}
}

32
core-java/src/main/java/com/baeldung/inheritance/Car.java Normal file
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@ -0,0 +1,32 @@
package com.baeldung.inheritance;
public class Car {
private final int DEFAULT_WHEEL_COUNT = 5;
private final String DEFAULT_MODEL = "Basic";
protected int wheels;
protected String model;
public Car() {
this.wheels = DEFAULT_WHEEL_COUNT;
this.model = DEFAULT_MODEL;
}
public Car(int wheels, String model) {
this.wheels = wheels;
this.model = model;
}
public void start() {
// Check essential parts
// If okay, start.
}
public static int count = 10;
public static String msg() {
return "Car";
}
public String toString() {
return model;
}
}

15
core-java/src/main/java/com/baeldung/inheritance/Employee.java Normal file
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@ -0,0 +1,15 @@
package com.baeldung.inheritance;
public class Employee {
private String name;
private Car car;
public Employee(String name, Car car) {
this.name = name;
this.car = car;
}
public Car getCar() {
return car;
}
}

10
core-java/src/main/java/com/baeldung/inheritance/Floatable.java Normal file
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@ -0,0 +1,10 @@
package com.baeldung.inheritance;
public interface Floatable {
int duration = 10;
void floatOnWater();
default void repair() {
System.out.println("Repairing Floatable object");
}
}

13
core-java/src/main/java/com/baeldung/inheritance/Flyable.java Normal file
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@ -0,0 +1,13 @@
package com.baeldung.inheritance;
public interface Flyable {
int duration = 10;
void fly();
/*
* Commented
*/
//default void repair() {
// System.out.println("Repairing Flyable object");
//}
}

18
core-java/src/main/java/com/baeldung/inheritance/SpaceCar.java Normal file
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@ -0,0 +1,18 @@
package com.baeldung.inheritance;
public class SpaceCar extends Car implements SpaceTraveller {
@Override
public void floatOnWater() {
System.out.println("SpaceCar floating!");
}
@Override
public void fly() {
System.out.println("SpaceCar flying!");
}
@Override
public void remoteControl() {
System.out.println("SpaceCar being controlled remotely!");
}
}

6
core-java/src/main/java/com/baeldung/inheritance/SpaceTraveller.java Normal file
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@ -0,0 +1,6 @@
package com.baeldung.inheritance;
public interface SpaceTraveller extends Floatable, Flyable {
int duration = 10;
void remoteControl();
}

123
core-java/src/main/java/com/baeldung/java/list/CustomList.java
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@ -9,6 +9,58 @@ import java.util.ListIterator;
public class CustomList<E> implements List<E> {
private Object[] internal = {};
@Override
public boolean isEmpty() {
// the first cycle
// return true;
// the second cycle
// if (internal.length != 0) {
// return false;
// } else {
// return true;
// }
// refactoring
return internal.length == 0;
}
@Override
public int size() {
// the first cycle
// if (isEmpty()) {
// return 0;
// } else {
// return internal.length;
// }
// refactoring
return internal.length;
}
@SuppressWarnings("unchecked")
@Override
public E get(int index) {
// the first cycle
// return (E) internal[0];
// improvement
return (E) internal[index];
}
@Override
public boolean add(E element) {
// the first cycle
// internal = new Object[] { element };
// return true;
// the second cycle
Object[] temp = Arrays.copyOf(internal, internal.length + 1);
temp[internal.length] = element;
internal = temp;
return true;
}
@Override
public void add(int index, E element) {
throw new UnsupportedOperationException();
@ -44,40 +96,8 @@ public class CustomList<E> implements List<E> {
throw new UnsupportedOperationException();
}
@Override
public int size() {
return internal.length;
}
@Override
public boolean isEmpty() {
return internal.length == 0;
}
@Override
public boolean add(E element) {
// the first cycle
// internal = new Object[1];
// internal[0] = element;
// return true;
Object[] temp = new Object[internal.length + 1];
System.arraycopy(internal, 0, temp, 0, internal.length);
temp[internal.length] = element;
internal = temp;
return true;
}
@SuppressWarnings("unchecked")
@Override
public E get(int index) {
return (E) internal[index];
}
@Override
public boolean contains(Object object) {
// return false
for (Object element : internal) {
if (object.equals(element)) {
return true;
@ -88,14 +108,6 @@ public class CustomList<E> implements List<E> {
@Override
public boolean containsAll(Collection<?> collection) {
// the first cycle
// for (Object element : collection) {
// if (element.equals(internal[0])) {
// return true;
// }
// }
// return false;
for (Object element : collection)
if (!contains(element)) {
return false;
@ -118,12 +130,6 @@ public class CustomList<E> implements List<E> {
@Override
public int indexOf(Object object) {
// the first cycle
// if (object.equals(internal[0])) {
// return 0;
// }
// return -1;
for (int i = 0; i < internal.length; i++) {
if (object.equals(internal[i])) {
return i;
@ -134,12 +140,6 @@ public class CustomList<E> implements List<E> {
@Override
public int lastIndexOf(Object object) {
// the first cycle
// if (object.equals(internal[0])) {
// return 0;
// }
// return -1;
for (int i = internal.length - 1; i >= 0; i--) {
if (object.equals(internal[i])) {
return i;
@ -151,9 +151,6 @@ public class CustomList<E> implements List<E> {
@SuppressWarnings("unchecked")
@Override
public List<E> subList(int fromIndex, int toIndex) {
// the first cycle
// return (List<E>) Arrays.asList(internal);
Object[] temp = new Object[toIndex - fromIndex];
System.arraycopy(internal, fromIndex, temp, 0, temp.length);
return (List<E>) Arrays.asList(temp);
@ -167,16 +164,6 @@ public class CustomList<E> implements List<E> {
@SuppressWarnings("unchecked")
@Override
public <T> T[] toArray(T[] array) {
// the first cycle
// array[0] = (T) internal[0];
// return array;
// the second cycle
// if (array.length < internal.length) {
// return (T[]) Arrays.copyOf(internal, internal.length, array.getClass());
// }
// return (T[]) Arrays.copyOf(internal, internal.length, array.getClass());
if (array.length < internal.length) {
return (T[]) Arrays.copyOf(internal, internal.length, array.getClass());
}
@ -209,18 +196,12 @@ public class CustomList<E> implements List<E> {
@Override
public boolean hasNext() {
// the first cycle
// return true;
return index != internal.length;
}
@SuppressWarnings("unchecked")
@Override
public E next() {
// the first cycle
// return (E) CustomList.this.internal[0];
E element = (E) CustomList.this.internal[index];
index++;
return element;

18
core-java/src/main/java/com/baeldung/system/DetectOS.java Normal file
View File

@ -0,0 +1,18 @@
package com.baeldung.system;
import org.apache.commons.lang3.SystemUtils;
public class DetectOS {
public String getOperatingSystem() {
String os = System.getProperty("os.name");
System.out.println("Using System Property: " + os);
return os;
}
public String getOperatingSystemSystemUtils() {
String os = SystemUtils.OS_NAME;
System.out.println("Using SystemUtils: " + os);
return os;
}
}

46
core-java/src/test/java/com/baeldung/inheritance/AppTest.java Normal file
View File

@ -0,0 +1,46 @@
package com.baeldung.inheritance;
import com.baeldung.inheritance.*;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
public class AppTest extends TestCase {
public AppTest(String testName) {
super( testName );
}
public static Test suite() {
return new TestSuite(AppTest.class);
}
@SuppressWarnings("static-access")
public void testStaticMethodUsingBaseClassVariable() {
Car first = new ArmoredCar();
assertEquals("Car", first.msg());
}
@SuppressWarnings("static-access")
public void testStaticMethodUsingDerivedClassVariable() {
ArmoredCar second = new ArmoredCar();
assertEquals("ArmoredCar", second.msg());
}
public void testAssignArmoredCarToCar() {
Employee e1 = new Employee("Shreya", new ArmoredCar());
assertNotNull(e1.getCar());
}
public void testAssignSpaceCarToCar() {
Employee e2 = new Employee("Paul", new SpaceCar());
assertNotNull(e2.getCar());
}
public void testBMWToCar() {
Employee e3 = new Employee("Pavni", new BMW());
assertNotNull(e3.getCar());
}
}

92
core-java/src/test/java/com/baeldung/java/list/CustomListUnitTest.java
View File

@ -14,6 +14,58 @@ import java.util.List;
import org.junit.Test;
public class CustomListUnitTest {
@Test
public void givenEmptyList_whenIsEmpty_thenTrueIsReturned() {
List<Object> list = new CustomList<>();
assertTrue(list.isEmpty());
}
@Test
public void givenNonEmptyList_whenIsEmpty_thenFalseIsReturned() {
List<Object> list = new CustomList<>();
list.add(null);
assertFalse(list.isEmpty());
}
@Test
public void givenListWithAnElement_whenSize_thenOneIsReturned() {
List<Object> list = new CustomList<>();
list.add(null);
assertEquals(1, list.size());
}
@Test
public void givenListWithAnElement_whenGet_thenThatElementIsReturned() {
List<Object> list = new CustomList<>();
list.add("baeldung");
Object element = list.get(0);
assertEquals("baeldung", element);
}
@Test
public void givenEmptyList_whenElementIsAdded_thenGetReturnsThatElement() {
List<Object> list = new CustomList<>();
boolean succeeded = list.add(null);
assertTrue(succeeded);
}
@Test
public void givenListWithAnElement_whenAnotherIsAdded_thenGetReturnsBoth() {
List<Object> list = new CustomList<>();
list.add("baeldung");
list.add(".com");
Object element1 = list.get(0);
Object element2 = list.get(1);
assertEquals("baeldung", element1);
assertEquals(".com", element2);
}
@Test(expected = UnsupportedOperationException.class)
public void whenAddToSpecifiedIndex_thenExceptionIsThrown() {
new CustomList<>().add(0, null);
@ -64,44 +116,6 @@ public class CustomListUnitTest {
list.retainAll(collection);
}
@Test
public void givenEmptyList_whenSize_thenZeroIsReturned() {
List<Object> list = new CustomList<>();
assertEquals(0, list.size());
}
@Test
public void givenEmptyList_whenIsEmpty_thenTrueIsReturned() {
List<Object> list = new CustomList<>();
assertTrue(list.isEmpty());
}
@Test
public void givenEmptyList_whenElementIsAdded_thenGetReturnsThatElement() {
List<Object> list = new CustomList<>();
boolean succeeded = list.add("baeldung");
Object element = list.get(0);
assertTrue(succeeded);
assertEquals("baeldung", element);
}
@Test
public void givenListWithAnElement_whenAnotherIsAdded_thenGetReturnsBoth() {
List<Object> list = new CustomList<>();
boolean succeeded1 = list.add("baeldung");
boolean succeeded2 = list.add(".com");
Object element1 = list.get(0);
Object element2 = list.get(1);
assertTrue(succeeded1);
assertTrue(succeeded2);
assertEquals("baeldung", element1);
assertEquals(".com", element2);
}
@Test
public void givenEmptyList_whenContains_thenFalseIsReturned() {
List<Object> list = new CustomList<>();
@ -271,7 +285,7 @@ public class CustomListUnitTest {
}
@Test
public void whenIteratorNextIsCalledTwice_thenTheSecondReturnsFalse() {
public void whenIteratorHasNextIsCalledTwice_thenTheSecondReturnsFalse() {
List<Object> list = new CustomList<>();
list.add("baeldung");
Iterator<Object> iterator = list.iterator();

25
core-java/src/test/java/com/baeldung/system/WhenDetectingOSTest.java Normal file
View File

@ -0,0 +1,25 @@
package com.baeldung.system;
import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;
@Ignore
public class WhenDetectingOSTest {
private DetectOS os = new DetectOS();
@Test
public void whenUsingSystemProperty_shouldReturnOS() {
String expected = "Windows 10";
String actual = os.getOperatingSystem();
Assert.assertEquals(expected, actual);
}
@Test
public void whenUsingSystemUtils_shouldReturnOS() {
String expected = "Windows 10";
String actual = os.getOperatingSystemSystemUtils();
Assert.assertEquals(expected, actual);
}
}

15
core-kotlin/pom.xml
View File

@ -76,7 +76,18 @@
<artifactId>mockito-kotlin</artifactId>
<version>${mockito-kotlin.version}</version>
<scope>test</scope>
</dependency>
</dependency>
<dependency>
<groupId>com.github.salomonbrys.kodein</groupId>
<artifactId>kodein</artifactId>
<version>${kodein.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
@ -189,11 +200,13 @@
<kotlin-reflect.version>1.1.2</kotlin-reflect.version>
<kotlinx.version>0.15</kotlinx.version>
<mockito-kotlin.version>1.5.0</mockito-kotlin.version>
<kodein.version>4.1.0</kodein.version>
<junit.jupiter.version>5.0.0</junit.jupiter.version>
<junit.platform.version>1.0.0</junit.platform.version>
<junit.vintage.version>4.12.0</junit.vintage.version>
<junit4.version>4.12</junit4.version>
<assertj.version>3.9.1</assertj.version>
</properties>
</project>

3
core-kotlin/src/main/kotlin/com/baeldung/kotlin/kodein/Controller.kt Normal file
View File

@ -0,0 +1,3 @@
package com.baeldung.kotlin.kodein
class Controller(private val service : Service)

3
core-kotlin/src/main/kotlin/com/baeldung/kotlin/kodein/Dao.kt Normal file
View File

@ -0,0 +1,3 @@
package com.baeldung.kotlin.kodein
interface Dao

3
core-kotlin/src/main/kotlin/com/baeldung/kotlin/kodein/JdbcDao.kt Normal file
View File

@ -0,0 +1,3 @@
package com.baeldung.kotlin.kodein
class JdbcDao : Dao

3
core-kotlin/src/main/kotlin/com/baeldung/kotlin/kodein/MongoDao.kt Normal file
View File

@ -0,0 +1,3 @@
package com.baeldung.kotlin.kodein
class MongoDao : Dao

3
core-kotlin/src/main/kotlin/com/baeldung/kotlin/kodein/Service.kt Normal file
View File

@ -0,0 +1,3 @@
package com.baeldung.kotlin.kodein
class Service(private val dao: Dao, private val tag: String)

191
core-kotlin/src/test/kotlin/com/baeldung/kotlin/kodein/KodeinUnitTest.kt Normal file
View File

@ -0,0 +1,191 @@
package com.baeldung.kotlin.kodein
import com.github.salomonbrys.kodein.*
import org.assertj.core.api.Assertions.assertThat
import org.junit.Test
class KodeinUnitTest {
class InMemoryDao : Dao
@Test
fun whenSingletonBinding_thenSingleInstanceIsCreated() {
var created = false
val kodein = Kodein {
bind<Dao>() with singleton {
created = true
MongoDao()
}
}
assertThat(created).isFalse()
val dao1: Dao = kodein.instance()
assertThat(created).isTrue()
val dao2: Dao = kodein.instance()
assertThat(dao1).isSameAs(dao2)
}
@Test
fun whenFactoryBinding_thenNewInstanceIsCreated() {
val kodein = Kodein {
bind<Dao>() with singleton { MongoDao() }
bind<Service>() with factory { tag: String -> Service(instance(), tag) }
}
val service1: Service = kodein.with("myTag").instance()
val service2: Service = kodein.with("myTag").instance()
assertThat(service1).isNotSameAs(service2)
}
@Test
fun whenProviderBinding_thenNewInstanceIsCreated() {
val kodein = Kodein {
bind<Dao>() with provider { MongoDao() }
}
val dao1: Dao = kodein.instance()
val dao2: Dao = kodein.instance()
assertThat(dao1).isNotSameAs(dao2)
}
@Test
fun whenTaggedBinding_thenMultipleInstancesOfSameTypeCanBeRegistered() {
val kodein = Kodein {
bind<Dao>("dao1") with singleton { MongoDao() }
bind<Dao>("dao2") with singleton { MongoDao() }
}
val dao1: Dao = kodein.instance("dao1")
val dao2: Dao = kodein.instance("dao2")
assertThat(dao1).isNotSameAs(dao2)
}
@Test
fun whenEagerSingletonBinding_thenCreationIsEager() {
var created = false
val kodein = Kodein {
bind<Dao>() with eagerSingleton {
created = true
MongoDao()
}
}
assertThat(created).isTrue()
val dao1: Dao = kodein.instance()
val dao2: Dao = kodein.instance()
assertThat(dao1).isSameAs(dao2)
}
@Test
fun whenMultitonBinding_thenInstancesAreReused() {
val kodein = Kodein {
bind<Dao>() with singleton { MongoDao() }
bind<Service>() with multiton { tag: String -> Service(instance(), tag) }
}
val service1: Service = kodein.with("myTag").instance()
val service2: Service = kodein.with("myTag").instance()
assertThat(service1).isSameAs(service2)
}
@Test
fun whenInstanceBinding_thenItIsReused() {
val dao = MongoDao()
val kodein = Kodein {
bind<Dao>() with instance(dao)
}
val fromContainer: Dao = kodein.instance()
assertThat(dao).isSameAs(fromContainer)
}
@Test
fun whenConstantBinding_thenItIsAvailable() {
val kodein = Kodein {
constant("magic") with 42
}
val fromContainer: Int = kodein.instance("magic")
assertThat(fromContainer).isEqualTo(42)
}
@Test
fun whenUsingModules_thenTransitiveDependenciesAreSuccessfullyResolved() {
val jdbcModule = Kodein.Module {
bind<Dao>() with singleton { JdbcDao() }
}
val kodein = Kodein {
import(jdbcModule)
bind<Controller>() with singleton { Controller(instance()) }
bind<Service>() with singleton { Service(instance(), "myService") }
}
val dao: Dao = kodein.instance()
assertThat(dao).isInstanceOf(JdbcDao::class.java)
}
@Test
fun whenComposition_thenBeansAreReUsed() {
val persistenceContainer = Kodein {
bind<Dao>() with singleton { MongoDao() }
}
val serviceContainer = Kodein {
extend(persistenceContainer)
bind<Service>() with singleton { Service(instance(), "myService") }
}
val fromPersistence: Dao = persistenceContainer.instance()
val fromService: Dao = serviceContainer.instance()
assertThat(fromPersistence).isSameAs(fromService)
}
@Test
fun whenOverriding_thenRightBeanIsUsed() {
val commonModule = Kodein.Module {
bind<Dao>() with singleton { MongoDao() }
bind<Service>() with singleton { Service(instance(), "myService") }
}
val testContainer = Kodein {
import(commonModule)
bind<Dao>(overrides = true) with singleton { InMemoryDao() }
}
val dao: Dao = testContainer.instance()
assertThat(dao).isInstanceOf(InMemoryDao::class.java)
}
@Test
fun whenMultiBinding_thenWorks() {
val kodein = Kodein {
bind() from setBinding<Dao>()
bind<Dao>().inSet() with singleton { MongoDao() }
bind<Dao>().inSet() with singleton { JdbcDao() }
}
val daos: Set<Dao> = kodein.instance()
assertThat(daos.map { it.javaClass as Class<*> }).containsOnly(MongoDao::class.java, JdbcDao::class.java)
}
@Test
fun whenInjector_thenWorks() {
class Controller2 {
private val injector = KodeinInjector()
val service: Service by injector.instance()
fun injectDependencies(kodein: Kodein) = injector.inject(kodein)
}
val kodein = Kodein {
bind<Dao>() with singleton { MongoDao() }
bind<Service>() with singleton { Service(instance(), "myService") }
}
val controller = Controller2()
controller.injectDependencies(kodein)
assertThat(controller.service).isNotNull
}
}

25
ethereumj/pom.xml
View File

@ -1,6 +1,5 @@
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung.ethereumj</groupId>
<artifactId>ethereumj</artifactId>
@ -8,16 +7,11 @@
<version>1.0.0</version>
<name>ethereumj</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<tomcat.version>8.5.4</tomcat.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
<artifactId>parent-boot-5</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-5</relativePath>
</parent>
<repositories>
@ -38,14 +32,12 @@
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<!--<scope>provided</scope>-->
</dependency>
<!-- Unit Testing -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>1.5.6.RELEASE</version>
<scope>test</scope>
</dependency>
@ -107,4 +99,11 @@
</build>
</profile>
</profiles>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<tomcat.version>8.5.4</tomcat.version>
</properties>
</project>

57
gradle/build.gradle
View File

@ -33,3 +33,60 @@ task execSecondTest {
}
println 'This will be executed during the configuration phase as well.'
}
task welcome {
doLast {
println 'Welcome on the Baeldung!'
}
}
task welcomeWithGroup {
group 'Sample category'
doLast {
println 'Welcome on the Baeldung!'
}
}
task welcomeWithGroupAndDescription {
group 'Sample category'
description 'Tasks which shows welcome message'
doLast {
println 'Welcome on the Baeldung!'
}
}
class PrintToolVersionTask extends DefaultTask {
String tool
@TaskAction
void printToolVersion() {
switch (tool) {
case 'java':
println System.getProperty("java.version")
break
case 'groovy':
println GroovySystem.version
break
default:
throw new IllegalArgumentException("Unknown tool")
}
}
}
task printJavaVersion(type : PrintToolVersionTask) {
tool 'java'
}
task printGroovyVersion(type : PrintToolVersionTask) {
tool 'groovy'
}
import com.baeldung.PrintToolVersionBuildSrcTask
task printJavaVersionBuildSrc(type : PrintToolVersionBuildSrcTask) {
tool 'java'
}
task printGroovyVersionBuildSrc(type : PrintToolVersionBuildSrcTask) {
tool 'groovy'
}

22
gradle/buildSrc/src/main/groovy/com/baeldung/PrintToolVersionBuildSrcTask.groovy Normal file
View File

@ -0,0 +1,22 @@
package com.baeldung
import org.gradle.api.DefaultTask
import org.gradle.api.tasks.TaskAction
class PrintToolVersionBuildSrcTask extends DefaultTask {
String tool
@TaskAction
void printToolVersion() {
switch (tool) {
case 'java':
println System.getProperty("java.version")
break
case 'groovy':
println GroovySystem.version
break
default:
throw new IllegalArgumentException("Unknown tool")
}
}
}

BIN
libraries/helloWorld.docx
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2
logging-modules/log4j/src/main/resources/logback.xml
View File

@ -78,7 +78,7 @@
<appender-ref ref="roll-by-time-and-size"/>
</logger>
<root level="DEBUG">
<root level="INFO">
<appender-ref ref="stdout"/>
<appender-ref ref="fout"/>
</root>

5
parent-boot-5/pom.xml
View File

@ -21,7 +21,7 @@
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<version>1.5.9.RELEASE</version>
<version>1.5.10.RELEASE</version>
<relativePath />
</parent>
@ -60,9 +60,6 @@
<exclude>**/*IntegrationTest.java</exclude>
<exclude>**/*LongRunningUnitTest.java</exclude>
<exclude>**/*ManualTest.java</exclude>
<exclude>**/JdbcTest.java</exclude>
<exclude>**/AutoconfigurationTest.java</exclude>
<exclude>**/*EntryPointsTest.java</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>

44
pom.xml
View File

@ -1,6 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<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">
<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>parent-modules</artifactId>
@ -15,7 +14,7 @@
<gib.skipTestsForNotImpactedModules>true</gib.skipTestsForNotImpactedModules>
<gib.failOnMissingGitDir>false</gib.failOnMissingGitDir>
<gib.failOnError>false</gib.failOnError>
<!-- <gib.enabled>false</gib.enabled>-->
<!-- <gib.enabled>false</gib.enabled> -->
<junit.version>4.12</junit.version>
<org.hamcrest.version>1.3</org.hamcrest.version>
<mockito.version>2.8.9</mockito.version>
@ -51,7 +50,7 @@
<module>core-java-8</module>
<module>core-groovy</module>
<module>core-java-concurrency</module>
<module>couchbase</module>
<module>deltaspike</module>
@ -59,7 +58,7 @@
<module>ethereumj</module>
<!--<module>ejb</module>-->
<!--<module>ejb</module> -->
<module>feign</module>
@ -79,20 +78,20 @@
<module>handling-spring-static-resources</module>
<module>hazelcast</module>
<module>hbase</module>
<!--<module>hibernate5</module>-->
<!--<module>hibernate5</module> -->
<module>httpclient</module>
<module>hystrix</module>
<module>image-processing</module>
<!-- <module>image-processing</module> --> <!-- TODO: to add back -->
<module>immutables</module>
<module>influxdb</module>
<module>jackson</module>
<!-- <module>persistence-modules/java-cassandra</module> -->
<!-- <module>persistence-modules/java-cassandra</module> -->
<module>vavr</module>
<module>java-lite</module>
<module>java-rmi</module>
<module>java-vavr-stream</module>
<module>java-lite</module>
<module>java-rmi</module>
<module>java-vavr-stream</module>
<module>javax-servlets</module>
<module>javaxval</module>
<module>jaxb</module>
@ -116,17 +115,15 @@
<module>logging-modules/log4j2</module>
<module>logging-modules/logback</module>
<module>lombok</module>
<!-- <module>kotlin</module>-->
<!-- <module>kotlin</module> -->
<module>mapstruct</module>
<!--
<module>metrics</module>
-->
<!-- <module>metrics</module> -->
<module>mesos-marathon</module>
<module>testing-modules/mockito</module>
<module>testing-modules/mockito-2</module>
<module>testing-modules/mocks</module>
<module>mustache</module>
<module>mvn-wrapper</module>
<module>mvn-wrapper</module>
<module>noexception</module>
<module>orientdb</module>
<module>osgi</module>
@ -146,14 +143,13 @@
<module>resteasy</module>
<module>rxjava</module>
<module>spring-swagger-codegen</module>
<module>testing-modules/selenium-junit-testng</module>
<module>persistence-modules/solr</module>
<module>spark-java</module>
<!-- <module>spring-5</module>-->
<module>spring-5</module>
<module>spring-5-reactive</module>
<module>spring-5-mvc</module>
<module>spring-5-security</module>
<!-- <module>spring-5-security</module> --> <!-- TODO: uncomment -->
<module>spring-activiti</module>
<module>spring-akka</module>
<module>spring-amqp</module>
@ -163,7 +159,7 @@
<module>spring-batch</module>
<module>spring-bom</module>
<module>spring-boot</module>
<module>spring-boot-keycloak</module>
<module>spring-boot-keycloak</module>
<module>spring-boot-bootstrap</module>
<module>spring-boot-admin</module>
<module>spring-boot-security</module>
@ -192,7 +188,7 @@
<module>spring-integration</module>
<module>spring-jenkins-pipeline</module>
<module>spring-jersey</module>
<module>jmeter</module>
<!-- <module>jmeter</module> --> <!-- TODO: uncomment -->
<module>spring-jms</module>
<module>spring-jooq</module>
<module>persistence-modules/spring-jpa</module>
@ -252,7 +248,7 @@
<module>spring-vertx</module>
<module>spring-jinq</module>
<module>spring-rest-embedded-tomcat</module>
<module>spring-rest-embedded-tomcat</module>
<module>testing-modules/testing</module>
@ -280,7 +276,7 @@
<module>saas</module>
<module>deeplearning4j</module>
<module>lucene</module>
<module>vraptor</module>
<module>vraptor</module>
<module>persistence-modules/java-cockroachdb</module>
</modules>
@ -307,7 +303,7 @@
<version>${org.slf4j.version}</version>
</dependency>
<!-- test -->
<!-- test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>

2
spring-5-security/pom.xml
View File

@ -12,7 +12,7 @@
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.M7</version>
<version>2.0.0.RC2</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>

35
spring-5-security/src/main/java/com/baeldung/passwordstorage/BaeldungPasswordEncoderSetup.java Normal file
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@ -0,0 +1,35 @@
package com.baeldung.passwordstorage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.authentication.event.AuthenticationSuccessEvent;
import org.springframework.security.core.Authentication;
import org.springframework.security.crypto.password.PasswordEncoder;
@Configuration
public class BaeldungPasswordEncoderSetup {
private final static Logger LOG = LoggerFactory.getLogger(BaeldungPasswordEncoderSetup.class);
@Bean
public ApplicationListener<AuthenticationSuccessEvent> authenticationSuccessListener(final PasswordEncoder encoder) {
return (AuthenticationSuccessEvent event) -> {
final Authentication auth = event.getAuthentication();
if (auth instanceof UsernamePasswordAuthenticationToken && auth.getCredentials() != null) {
final CharSequence clearTextPass = (CharSequence) auth.getCredentials(); // 1
final String newPasswordHash = encoder.encode(clearTextPass); // 2
LOG.info("New password hash {} for user {}", newPasswordHash, auth.getName());
((UsernamePasswordAuthenticationToken) auth).eraseCredentials(); // 3
}
};
}
}

13
spring-5-security/src/main/java/com/baeldung/passwordstorage/PasswordStorageApplication.java Normal file
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@ -0,0 +1,13 @@
package com.baeldung.passwordstorage;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class PasswordStorageApplication {
public static void main(String[] args) {
SpringApplication.run(PasswordStorageApplication.class, args);
}
}

53
spring-5-security/src/main/java/com/baeldung/passwordstorage/PasswordStorageWebSecurityConfigurer.java Normal file
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@ -0,0 +1,53 @@
package com.baeldung.passwordstorage;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.DelegatingPasswordEncoder;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.crypto.password.StandardPasswordEncoder;
import org.springframework.security.crypto.scrypt.SCryptPasswordEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
@Configuration
public class PasswordStorageWebSecurityConfigurer extends WebSecurityConfigurerAdapter {
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.eraseCredentials(false) // 4
.userDetailsService(getUserDefaultDetailsService())
.passwordEncoder(passwordEncoder());
}
@Bean
public UserDetailsService getUserDefaultDetailsService() {
User testUser = new User("baeldung", "{noop}SpringSecurity5", Collections.emptyList());
return new InMemoryUserDetailsManager(testUser);
}
@Bean
public PasswordEncoder passwordEncoder() {
// set up the list of supported encoders and their prefixes
PasswordEncoder defaultEncoder = new StandardPasswordEncoder();
Map<String, PasswordEncoder> encoders = new HashMap<>();
encoders.put("bcrypt", new BCryptPasswordEncoder());
encoders.put("scrypt", new SCryptPasswordEncoder());
encoders.put("noop", NoOpPasswordEncoder.getInstance());
DelegatingPasswordEncoder passwordEncoder = new DelegatingPasswordEncoder("bcrypt", encoders);
passwordEncoder.setDefaultPasswordEncoderForMatches(defaultEncoder);
return passwordEncoder;
}
}

8
spring-5/pom.xml
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@ -14,7 +14,7 @@
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.M7</version>
<version>2.0.0.RC2</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
@ -39,10 +39,14 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.projectreactor</groupId>
<artifactId>reactor-spring</artifactId>

26
spring-5/src/main/java/com/baeldung/execption/SpringExceptionApplication.java
View File

@ -1,14 +1,14 @@
package com.baeldung.execption;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@SpringBootApplication(exclude = SecurityAutoConfiguration.class)
@ComponentScan(basePackages = { "com.baeldung.execption" })
public class SpringExceptionApplication {
public static void main(String[] args) {
SpringApplication.run(SpringExceptionApplication.class, args);
}
package com.baeldung.execption;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
@SpringBootApplication(exclude = SecurityAutoConfiguration.class)
@ComponentScan(basePackages = { "com.baeldung.execption" })
public class SpringExceptionApplication {
public static void main(String[] args) {
SpringApplication.run(SpringExceptionApplication.class, args);
}
}

44
spring-5/src/main/java/com/baeldung/sessionattrs/Config.java Normal file
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@ -0,0 +1,44 @@
package com.baeldung.sessionattrs;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;
import org.springframework.context.annotation.ScopedProxyMode;
import org.springframework.core.Ordered;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.thymeleaf.templatemode.TemplateMode;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
import org.thymeleaf.templateresolver.ITemplateResolver;
@EnableWebMvc
@Configuration
public class Config implements WebMvcConfigurer {
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("index");
registry.setOrder(Ordered.HIGHEST_PRECEDENCE);
}
@Bean
@Scope(
value = WebApplicationContext.SCOPE_SESSION,
proxyMode = ScopedProxyMode.TARGET_CLASS)
public TodoList todos() {
return new TodoList();
}
@Bean
public ITemplateResolver templateResolver() {
ClassLoaderTemplateResolver resolver
= new ClassLoaderTemplateResolver();
resolver.setPrefix("templates/sessionattrs/");
resolver.setSuffix(".html");
resolver.setTemplateMode(TemplateMode.HTML);
resolver.setCharacterEncoding("UTF-8");
return resolver;
}
}

16
spring-5/src/main/java/com/baeldung/sessionattrs/SessionAttrsApplication.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.sessionattrs;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
@SpringBootApplication(
exclude = {SecurityAutoConfiguration.class,
DataSourceAutoConfiguration.class})
public class SessionAttrsApplication {
public static void main(String[] args) {
SpringApplication.run(SessionAttrsApplication.class, args);
}
}

45
spring-5/src/main/java/com/baeldung/sessionattrs/TodoControllerWithScopedProxy.java Normal file
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@ -0,0 +1,45 @@
package com.baeldung.sessionattrs;
import java.time.LocalDateTime;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/scopedproxy")
public class TodoControllerWithScopedProxy {
private TodoList todos;
public TodoControllerWithScopedProxy(TodoList todos) {
this.todos = todos;
}
@GetMapping("/form")
public String showForm(Model model) {
if (!todos.isEmpty()) {
model.addAttribute("todo", todos.peekLast());
} else {
model.addAttribute("todo", new TodoItem());
}
return "scopedproxyform";
}
@PostMapping("/form")
public String create(@ModelAttribute TodoItem todo) {
todo.setCreateDate(LocalDateTime.now());
todos.add(todo);
return "redirect:/scopedproxy/todos.html";
}
@GetMapping("/todos.html")
public String list(Model model) {
model.addAttribute("todos", todos);
return "scopedproxytodos";
}
}

55
spring-5/src/main/java/com/baeldung/sessionattrs/TodoControllerWithSessionAttributes.java Normal file
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@ -0,0 +1,55 @@
package com.baeldung.sessionattrs;
import java.time.LocalDateTime;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import org.springframework.web.servlet.view.RedirectView;
@Controller
@RequestMapping("/sessionattributes")
@SessionAttributes("todos")
public class TodoControllerWithSessionAttributes {
@GetMapping("/form")
public String showForm(
Model model,
@ModelAttribute("todos") TodoList todos) {
if (!todos.isEmpty()) {
model.addAttribute("todo", todos.peekLast());
} else {
model.addAttribute("todo", new TodoItem());
}
return "sessionattributesform";
}
@PostMapping("/form")
public RedirectView create(
@ModelAttribute TodoItem todo,
@ModelAttribute("todos") TodoList todos,
RedirectAttributes attributes) {
todo.setCreateDate(LocalDateTime.now());
todos.add(todo);
attributes.addFlashAttribute("todos", todos);
return new RedirectView("/sessionattributes/todos.html");
}
@GetMapping("/todos.html")
public String list(
Model model,
@ModelAttribute("todos") TodoList todos) {
model.addAttribute("todos", todos);
return "sessionattributestodos";
}
@ModelAttribute("todos")
public TodoList todos() {
return new TodoList();
}
}

39
spring-5/src/main/java/com/baeldung/sessionattrs/TodoItem.java Normal file
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@ -0,0 +1,39 @@
package com.baeldung.sessionattrs;
import java.time.LocalDateTime;
public class TodoItem {
private String description;
private LocalDateTime createDate;
public TodoItem(String description, LocalDateTime createDate) {
this.description = description;
this.createDate = createDate;
}
public TodoItem() {
// default no arg constructor
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public LocalDateTime getCreateDate() {
return createDate;
}
public void setCreateDate(LocalDateTime createDate) {
this.createDate = createDate;
}
@Override
public String toString() {
return "TodoItem [description=" + description + ", createDate=" + createDate + "]";
}
}

8
spring-5/src/main/java/com/baeldung/sessionattrs/TodoList.java Normal file
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@ -0,0 +1,8 @@
package com.baeldung.sessionattrs;
import java.util.ArrayDeque;
@SuppressWarnings("serial")
public class TodoList extends ArrayDeque<TodoItem>{
}

27
spring-5/src/main/resources/templates/sessionattrs/index.html Normal file
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@ -0,0 +1,27 @@
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4" lang="en">
<head>
<title>Session Scope in Spring MVC</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
</head>
<body>
<div class="container">
<p>
<h3>Session Scope in Spring MVC - Example</h3>
</p>
</div>
<div class="container">
<div class="row">
<div class="col">
<a href="/scopedproxy/form" class="btn btn-sm btn-primary btn-block float-right" role="button">Session Scoped Proxy Example</a></div>
<div class="col">
<a href="/sessionattributes/form" class="btn btn-sm btn-primary btn-block float-right" role="button">Session Attributes Example</a></div>
</div>
</div>
</body>
</html>

27
spring-5/src/main/resources/templates/sessionattrs/scopedproxyform.html Normal file
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@ -0,0 +1,27 @@
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4" lang="en">
<head>
<title>Session Scope in Spring MVC</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
</head>
<body>
<div class="container">
<p>
<h3>Scoped Proxy Example</h3>
</p>
</div>
<div class="container">
<h5>Enter a TODO</h5>
<form action="#" th:action="@{/scopedproxy/form}" th:object="${todo}" method="post">
<div class="input-group">
<input type="text" th:field="*{description}" class="form-control" placeholder="TODO" required autofocus/>
<button class="btn btn-sm btn-primary form-control text-center" type="submit" style="max-width: 80px;">Create</button>
</div>
</form>
</div>
</body>
</html>

48
spring-5/src/main/resources/templates/sessionattrs/scopedproxytodos.html Normal file
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@ -0,0 +1,48 @@
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4" lang="en">
<head>
<title>Session Scope in Spring MVC</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M"
crossorigin="anonymous">
</head>
<body>
<div class="container">
<p>
<h3>Scoped Proxy Example</h3>
</p>
</div>
<div class="container">
<br/>
<div class="row">
<a th:href="@{/scopedproxy/form}" class="btn btn-sm btn-primary btn-block" role="button"
style="width: 10em;">Add New</a>
</div>
<br/>
<div class="row">
<div class="col card" style="padding: 1em;">
<div class="card-block">
<h5 class="card-title">TODO List</h5>
<table>
<tbody>
<tr>
<th width="75%">Description</th>
<th width="25%" >Create Date</th>
</tr>
<tr th:each="todo : ${todos}">
<td th:text="${todo.description}">Description</td>
<td th:text="${#temporals.format(todo.createDate, 'MM-dd-yyyy HH:mm:ss')}">Create Date</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</body>
</html>

27
spring-5/src/main/resources/templates/sessionattrs/sessionattributesform.html Normal file
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@ -0,0 +1,27 @@
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4" lang="en">
<head>
<title>Session Scope in Spring MVC</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
</head>
<body>
<div class="container">
<p>
<h3>Session Attributes Example</h3>
</p>
</div>
<div class="container">
<h5>Enter a TODO</h5>
<form action="#" th:action="@{/sessionattributes/form}" th:object="${todo}" method="post">
<div class="input-group">
<input type="text" th:field="*{description}" class="form-control" placeholder="TODO" required autofocus/>
<button class="btn btn-sm btn-primary form-control text-center" type="submit" style="max-width: 80px;">Create</button>
</div>
</form>
</div>
</body>
</html>

48
spring-5/src/main/resources/templates/sessionattrs/sessionattributestodos.html Normal file
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@ -0,0 +1,48 @@
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity4" lang="en">
<head>
<title>Session Scope in Spring MVC</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M"
crossorigin="anonymous">
</head>
<body>
<div class="container">
<p>
<h3>Session Attributes Example</h3>
</p>
</div>
<div class="container">
<br/>
<div class="row">
<a th:href="@{/sessionattributes/form}" class="btn btn-sm btn-primary btn-block" role="button"
style="width: 10em;">Add New</a>
</div>
<br/>
<div class="row">
<div class="col card" style="padding: 1em;">
<div class="card-block">
<h5 class="card-title">TODO List</h5>
<table>
<tbody>
<tr>
<th width="75%">Description</th>
<th width="25%" >Create Date</th>
</tr>
<tr th:each="todo : ${todos}">
<td th:text="${todo.description}">Description</td>
<td th:text="${#temporals.format(todo.createDate, 'MM-dd-yyyy HH:mm:ss')}">Create Date</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</body>
</html>

16
spring-5/src/test/java/com/baeldung/sessionattrs/SessionAttrsApplicationTests.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.sessionattrs;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest
public class SessionAttrsApplicationTests {
@Test
public void contextLoads() {
}
}

17
spring-5/src/test/java/com/baeldung/sessionattrs/TestConfig.java Normal file
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@ -0,0 +1,17 @@
package com.baeldung.sessionattrs;
import org.springframework.beans.factory.config.CustomScopeConfigurer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.SimpleThreadScope;
@Configuration
public class TestConfig {
@Bean
public CustomScopeConfigurer customScopeConfigurer() {
CustomScopeConfigurer configurer = new CustomScopeConfigurer();
configurer.addScope("session", new SimpleThreadScope());
return configurer;
}
}

68
spring-5/src/test/java/com/baeldung/sessionattrs/TodoControllerWithScopedProxyTest.java Normal file
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@ -0,0 +1,68 @@
package com.baeldung.sessionattrs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.Import;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.util.StringUtils;
import org.springframework.web.context.WebApplicationContext;
@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
@Import(TestConfig.class)
public class TodoControllerWithScopedProxyTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private WebApplicationContext wac;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac)
.build();
}
@Test
public void whenFirstRequest_thenContainsAllCategoriesAndUnintializedTodo() throws Exception {
MvcResult result = mockMvc.perform(get("/scopedproxy/form"))
.andExpect(status().isOk())
.andExpect(model().attributeExists("todo"))
.andReturn();
TodoItem item = (TodoItem) result.getModelAndView().getModel().get("todo");
assertTrue(StringUtils.isEmpty(item.getDescription()));
}
@Test
public void whenSubmit_thenSubsequentFormRequestContainsMostRecentTodo() throws Exception {
mockMvc.perform(post("/scopedproxy/form")
.param("description", "newtodo"))
.andExpect(status().is3xxRedirection())
.andReturn();
MvcResult result = mockMvc.perform(get("/scopedproxy/form"))
.andExpect(status().isOk())
.andExpect(model().attributeExists("todo"))
.andReturn();
TodoItem item = (TodoItem) result.getModelAndView().getModel().get("todo");
assertEquals("newtodo", item.getDescription());
}
}

68
spring-5/src/test/java/com/baeldung/sessionattrs/TodoControllerWithSessionAttributesTest.java Normal file
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@ -0,0 +1,68 @@
package com.baeldung.sessionattrs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.util.StringUtils;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.servlet.FlashMap;
@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class TodoControllerWithSessionAttributesTest {
@Autowired
private MockMvc mockMvc;
@Autowired
private WebApplicationContext wac;
@Before
public void setup() {
this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac)
.build();
}
@Test
public void whenFirstRequest_thenContainsUnintializedTodo() throws Exception {
MvcResult result = mockMvc.perform(get("/sessionattributes/form"))
.andExpect(status().isOk())
.andExpect(model().attributeExists("todo"))
.andReturn();
TodoItem item = (TodoItem) result.getModelAndView().getModel().get("todo");
assertTrue(StringUtils.isEmpty(item.getDescription()));
}
@Test
public void whenSubmit_thenSubsequentFormRequestContainsMostRecentTodo() throws Exception {
FlashMap flashMap = mockMvc.perform(post("/sessionattributes/form")
.param("description", "newtodo"))
.andExpect(status().is3xxRedirection())
.andReturn().getFlashMap();
MvcResult result = mockMvc.perform(get("/sessionattributes/form")
.sessionAttrs(flashMap))
.andExpect(status().isOk())
.andExpect(model().attributeExists("todo"))
.andReturn();
TodoItem item = (TodoItem) result.getModelAndView().getModel().get("todo");
assertEquals("newtodo", item.getDescription());
}
}

4
spring-boot-bootstrap/pom.xml
View File

@ -24,12 +24,12 @@
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>1.5.5.RELEASE</version>
<version>1.5.10.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>1.5.6.RELEASE</version>
<version>1.5.10.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>

23
spring-boot-property-exp/pom.xml
View File

@ -1,6 +1,11 @@
<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">
<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>
<name>spring-boot-property-exp</name>
<groupId>com.baeldung</groupId>
<artifactId>spring-boot-property-exp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<parent>
<artifactId>parent-modules</artifactId>
@ -8,17 +13,6 @@
<version>1.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>spring-boot-property-exp</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<name>spring-boot-property-exp</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
@ -28,5 +22,4 @@
<module>property-exp-custom-config</module>
</modules>
</project>

30
spring-boot-property-exp/property-exp-custom-config/pom.xml
View File

@ -1,32 +1,26 @@
<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">
<parent>
<artifactId>spring-boot-property-exp</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<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>
<name>property-exp-custom</name>
<groupId>com.baeldung</groupId>
<artifactId>property-exp-custom-config</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>property-exp-custom</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<custom.property>Custom Property Value</custom.property>
</properties>
<parent>
<artifactId>spring-boot-property-exp</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>1.5.4.RELEASE</version>
<version>1.5.10.RELEASE</version>
</dependency>
</dependencies>
<build>
@ -73,5 +67,9 @@
</plugins>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<custom.property>Custom Property Value</custom.property>
</properties>
</project>

31
spring-boot-property-exp/property-exp-default-config/pom.xml
View File

@ -1,27 +1,17 @@
<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">
<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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.4.RELEASE</version>
</parent>
<name>property-exp-default</name>
<groupId>com.baeldung</groupId>
<artifactId>property-exp-default-config</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>property-exp-default</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<custom.property>Custom Property Value</custom.property>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
</parent>
<dependencies>
<dependency>
@ -42,4 +32,9 @@
</plugins>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<custom.property>Custom Property Value</custom.property>
</properties>
</project>

2
spring-cloud/spring-cloud-contract/spring-cloud-contract-consumer/src/main/java/com/baeldung/spring/cloud/springcloudcontractconsumer/controller/BasicMathController.java
View File

@ -16,7 +16,7 @@ public class BasicMathController {
private RestTemplate restTemplate;
@GetMapping("/calculate")
public String checkOddAndEven(@RequestParam("number") String number) {
public String checkOddAndEven(@RequestParam("number") Integer number) {
HttpHeaders httpHeaders = new HttpHeaders();
httpHeaders.add("Content-Type", "application/json");

4
spring-cloud/spring-cloud-contract/spring-cloud-contract-producer/src/main/java/com/baeldung/spring/cloud/springcloudcontractproducer/controller/EvenOddController.java
View File

@ -9,7 +9,7 @@ import org.springframework.web.bind.annotation.RestController;
public class EvenOddController {
@GetMapping("/validate/prime-number")
public String isNumberPrime(@RequestParam("number") String number) {
return Integer.parseInt(number) % 2 == 0 ? "Even" : "Odd";
public String isNumberPrime(@RequestParam("number") Integer number) {
return number % 2 == 0 ? "Even" : "Odd";
}
}

4
spring-cloud/spring-cloud-security/auth-client/src/main/java/com/baeldung/controller/CloudSiteController.java
View File

@ -19,10 +19,10 @@ public class CloudSiteController {
return "Hello From Baeldung!";
}
@GetMapping("/person")
@GetMapping("/personInfo")
public ModelAndView person() {
ModelAndView mav = new ModelAndView("personinfo");
String personResourceUrl = "http://localhost:9000/personResource";
String personResourceUrl = "http://localhost:9000/person";
mav.addObject("person", restOperations.getForObject(personResourceUrl, String.class));
return mav;
}

4
spring-cloud/spring-cloud-security/auth-client/src/main/resources/application.yml
View File

@ -13,7 +13,7 @@ security:
clientId: authserver
clientSecret: passwordforauthserver
resource:
userInfoUri: http://localhost:7070/authserver/user
userInfoUri: http://localhost:9000/user
person:
url: http://localhost:9000/person
@ -27,7 +27,7 @@ zuul:
url: http://localhost:9000
user:
path: /user/**
url: http://localhost:7070/authserver/user
url: http://localhost:9000/user
# Make sure the OAuth2 token is only relayed when using the internal API,
# do not pass any authentication to the external API

6
spring-cloud/spring-cloud-security/auth-resource/src/main/java/com/baeldung/controller/PersonInfoController.java
View File

@ -10,9 +10,9 @@ import com.baeldung.model.Person;
@RestController
public class PersonInfoController {
@GetMapping("/personResource")
@GetMapping("/person")
@PreAuthorize("hasAnyRole('ADMIN', 'USER')")
public @ResponseBody Person personInfo() {
return new Person("abir", "Dhaka", "Bangladesh", 29, "Male");
}
}
}
}

0
spring-cloud/spring-cloud-security/auth-server/src/main/java/com/baeldung/controller/ResourceController.java → spring-cloud/spring-cloud-security/auth-resource/src/main/java/com/baeldung/controller/ResourceController.java
View File

1
spring-cloud/spring-cloud-security/auth-resource/src/main/resources/application.yml
View File

@ -8,7 +8,6 @@ security:
sessions: NEVER
oauth2:
resource:
userInfoUri: http://localhost:7070/authserver/user
jwt:
keyValue: |
-----BEGIN PUBLIC KEY-----

21
spring-cloud/spring-cloud-security/auth-server/src/main/java/com/baeldung/config/ResourceServerConfigurer.java
View File

@ -1,21 +0,0 @@
package com.baeldung.config;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
/**
* Our configuration for the OAuth2 User Info Resource Server.
*/
@Configuration
@EnableResourceServer
public class ResourceServerConfigurer extends ResourceServerConfigurerAdapter {
@Override
public void configure(HttpSecurity http) throws Exception {
http.antMatcher("/user")
.authorizeRequests()
.anyRequest()
.authenticated();
}
}

21
spring-core/src/main/java/com/baeldung/dependencyinjectiontypes/Student.java
View File

@ -1,21 +0,0 @@
package com.baeldung.dependencyinjectiontypes;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class Student {
private TeacherFinder teacherFinder;
@Autowired
public Student(TeacherFinder teacherFinder) {
this.teacherFinder = teacherFinder;
}
public String getTeacher() {
return teacherFinder.getTeacherFinder();
}
// business logic that actually uses the injected teacherFinders is omitted...
}

20
spring-core/src/main/java/com/baeldung/dependencyinjectiontypes/Student2.java
View File

@ -1,20 +0,0 @@
package com.baeldung.dependencyinjectiontypes;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class Student2 {
private TeacherFinder teacherFinder;
@Autowired
public void setTeacherFinder(TeacherFinder teacherFinder) {
this.teacherFinder = teacherFinder;
}
public String getTeacher() {
return teacherFinder.getTeacherFinder();
}
}

16
spring-core/src/main/java/com/baeldung/dependencyinjectiontypes/TeacherFinder.java
View File

@ -1,16 +0,0 @@
package com.baeldung.dependencyinjectiontypes;
public class TeacherFinder {
private String teacherFinder;
public String getTeacherFinder() {
return teacherFinder;
}
public void setTeacherFinder(String teacherFinder) {
this.teacherFinder = teacherFinder;
}
}

91
spring-core/src/main/java/com/baeldung/setterdi/Config.java
View File

@ -1,58 +1,35 @@
package com.baeldung.setterdi;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import com.baeldung.dependencyinjectiontypes.Student;
import com.baeldung.dependencyinjectiontypes.Student2;
import com.baeldung.dependencyinjectiontypes.TeacherFinder;
import com.baeldung.setterdi.domain.Engine;
import com.baeldung.setterdi.domain.Trailer;
import com.baeldung.setterdi.domain.Transmission;
@Configuration
@ComponentScan("com.baeldung.setterdi")
public class Config {
@Bean
public Engine engine() {
Engine engine = new Engine();
engine.setType("v8");
engine.setVolume(5);
return engine;
}
@Bean
public Transmission transmission() {
Transmission transmission = new Transmission();
transmission.setType("sliding");
return transmission;
}
@Bean
public Trailer trailer() {
Trailer trailer = new Trailer();
return trailer;
}
@Bean
public TeacherFinder teacherFinder(){
TeacherFinder teacherFinder =new TeacherFinder();
teacherFinder.setTeacherFinder("author");
return teacherFinder;
}
@Bean
public Student student() {
return new Student(teacherFinder());
}
@Bean
public Student2 student2() {
Student2 student2 = new Student2();
student2.setTeacherFinder(teacherFinder());
return student2;
}
package com.baeldung.setterdi;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import com.baeldung.setterdi.domain.Engine;
import com.baeldung.setterdi.domain.Trailer;
import com.baeldung.setterdi.domain.Transmission;
@Configuration
@ComponentScan("com.baeldung.setterdi")
public class Config {
@Bean
public Engine engine() {
Engine engine = new Engine();
engine.setType("v8");
engine.setVolume(5);
return engine;
}
@Bean
public Transmission transmission() {
Transmission transmission = new Transmission();
transmission.setType("sliding");
return transmission;
}
@Bean
public Trailer trailer() {
Trailer trailer = new Trailer();
return trailer;
}
}

30
spring-core/src/test/java/com/baeldung/dependencyinjectiontypes/DependencyInjectionTest.java
View File

@ -2,25 +2,13 @@ package com.baeldung.dependencyinjectiontypes;
import static org.junit.Assert.assertTrue;
import org.apache.log4j.Logger;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;
import org.springframework.context.support.ClassPathXmlApplicationContext;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes=com.baeldung.setterdi.Config.class, loader=AnnotationConfigContextLoader.class)
public class DependencyInjectionTest {
@Autowired
private ApplicationContext appContext;
Logger logger = Logger.getLogger(this.getClass());
/* @Test
@Test
public void givenAutowiredAnnotation_WhenSetOnSetter_ThenDependencyValid() {
ApplicationContext context = new ClassPathXmlApplicationContext("dependencyinjectiontypes-context.xml");
@ -42,20 +30,6 @@ public class DependencyInjectionTest {
String formattedArticle = article.format(originalText);
assertTrue(originalText.toUpperCase().equals(formattedArticle));
}*/
@Test
public void givenAutowiredAnnotation_OnSetter_ThenDependencyValid() {
Student student = (Student) appContext.getBean("student");
String teacherFound = student.getTeacher();
assertTrue(teacherFound.equals("author"));
}
@Test
public void givenAutowiredAnnotation_OnConstructor_ThenDependencyValid() {
Student2 student2 = (Student2) appContext.getBean("student2");
String teacherFound = student2.getTeacher();
assertTrue(teacherFound.equals("author"));
}
}

2
spring-swagger-codegen/spring-swagger-codegen-app/pom.xml
View File

@ -9,7 +9,7 @@
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
<version>1.5.10.RELEASE</version>
</parent>
<dependencies>

53
vavr/pom.xml
View File

@ -1,17 +1,15 @@
<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/maven-v4_0_0.xsd">
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>vavr</artifactId>
<version>1.0</version>
<name>vavr</name>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.6.RELEASE</version>
<relativePath/>
<!-- lookup parent from repository -->
<parent>
<artifactId>parent-boot-5</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-5</relativePath>
</parent>
<dependencies>
@ -21,12 +19,6 @@
<version>${vavr.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
@ -42,15 +34,15 @@
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>${awaitility.version}</version>
<scope>test</scope>
</dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>${awaitility.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>spring-snapshot</id>
@ -66,20 +58,13 @@
<url>https://repo.spring.io/libs-snapshot</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/snapshot</url>
</pluginRepository>
</pluginRepositories>
<properties>
<java.version>1.8</java.version>
<vavr.version>0.9.1</vavr.version>
<junit.version>4.12</junit.version>
<awaitility.version>3.0.0</awaitility.version>
</properties>
<build>
<plugins>
@ -97,10 +82,16 @@
<exclude>**/JdbcTest.java</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<java.version>1.8</java.version>
<vavr.version>0.9.1</vavr.version>
<junit.version>4.12</junit.version>
<awaitility.version>3.0.0</awaitility.version>
</properties>
</project>