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Merge branch 'master' into BAEL-1447-v2

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Loredana Crusoveanu 2018-07-24 22:06:08 +03:00 committed by GitHub
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3
apache-meecrowave/README.md Normal file
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@ -0,0 +1,3 @@
### Relevant Articles:
================================
- [Building a Microservice with Apache Meecrowave](http://www.baeldung.com/apache-meecrowave)

3
core-java-8/README.md
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@ -46,7 +46,6 @@
- [Overview of Java Built-in Annotations](http://www.baeldung.com/java-default-annotations)
- [Finding Min/Max in an Array with Java](http://www.baeldung.com/java-array-min-max)
- [Internationalization and Localization in Java 8](http://www.baeldung.com/java-8-localization)
- [Filtering Kotlin Collections](http://www.baeldung.com/kotlin-filter-collection)
- [How to Find an Element in a List with Java](http://www.baeldung.com/find-list-element-java)
- [Measure Elapsed Time in Java](http://www.baeldung.com/java-measure-elapsed-time)
- [Java Optional – orElse() vs orElseGet()](http://www.baeldung.com/java-optional-or-else-vs-or-else-get)
@ -55,3 +54,5 @@
- [Java 8 Unsigned Arithmetic Support](http://www.baeldung.com/java-unsigned-arithmetic)
- [How to Get the Start and the End of a Day using Java](http://www.baeldung.com/java-day-start-end)
- [Generalized Target-Type Inference in Java](http://www.baeldung.com/java-generalized-target-type-inference)
- [Image to Base64 String Conversion](http://www.baeldung.com/java-base64-image-string)
- [Calculate Age in Java](http://www.baeldung.com/java-get-age)

11
core-java-8/pom.xml
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@ -99,6 +99,16 @@
<artifactId>joda-time</artifactId>
<version>${joda.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${asspectj.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${asspectj.version}</version>
</dependency>
</dependencies>
<build>
@ -170,6 +180,7 @@
<joda.version>2.10</joda.version>
<!-- testing -->
<assertj.version>3.6.1</assertj.version>
<asspectj.version>1.8.9</asspectj.version>
<avaitility.version>1.7.0</avaitility.version>
<jmh-core.version>1.19</jmh-core.version>
<jmh-generator.version>1.19</jmh-generator.version>

9
core-java-8/src/main/java/com/baeldung/aspect/ChangeCallsToCurrentTimeInMillisMethod.aj Normal file
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@ -0,0 +1,9 @@
package com.baeldung.aspect;
public aspect ChangeCallsToCurrentTimeInMillisMethod {
long around():
call(public static native long java.lang.System.currentTimeMillis())
&& within(user.code.base.pckg.*) {
return 0;
}
}

4
core-java-8/src/test/java/com/baeldung/util/CurrentDateTimeUnitTest.java
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@ -1,6 +1,7 @@
package com.baeldung.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.time.Clock;
import java.time.Instant;
@ -9,6 +10,8 @@ import java.time.LocalTime;
import java.time.ZoneId;
import java.time.temporal.ChronoField;
import org.joda.time.DateTime;
import org.joda.time.DateTimeUtils;
import org.junit.Test;
public class CurrentDateTimeUnitTest {
@ -39,5 +42,4 @@ public class CurrentDateTimeUnitTest {
assertEquals(clock.instant().getEpochSecond(), now.getEpochSecond());
}
}

1
core-java-collections/README.md
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@ -30,3 +30,4 @@
- [How to TDD a List Implementation in Java](http://www.baeldung.com/java-test-driven-list)
- [How to Store Duplicate Keys in a Map in Java?](http://www.baeldung.com/java-map-duplicate-keys)
- [Getting the Size of an Iterable in Java](http://www.baeldung.com/java-iterable-size)
- [Iterating Backward Through a List](http://www.baeldung.com/java-list-iterate-backwards)

0
core-java-8/src/main/java/com/baeldung/convertlisttomap/Animal.java → core-java-collections/src/main/java/com/baeldung/convertlisttomap/Animal.java
View File

6
core-java-8/src/main/java/com/baeldung/convertlisttomap/ConvertListToMapService.java → core-java-collections/src/main/java/com/baeldung/convertlisttomap/ConvertListToMapService.java
View File

@ -1,13 +1,13 @@
package com.baeldung.convertlisttomap;
import com.google.common.collect.Maps;
import org.apache.commons.collections4.MapUtils;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.commons.collections4.MapUtils;
import com.google.common.collect.Maps;
public class ConvertListToMapService {
public Map<Integer, Animal> convertListBeforeJava8(List<Animal> list) {

9
core-java-8/src/test/java/com/baeldung/convertlisttomap/ConvertListToMapServiceUnitTest.java → core-java-collections/src/test/java/com/baeldung/convertlisttomap/ConvertListToMapServiceUnitTest.java
View File

@ -1,13 +1,14 @@
package com.baeldung.convertlisttomap;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsInAnyOrder;
public class ConvertListToMapServiceUnitTest {
List<Animal> list;

10
core-java-8/src/test/java/com/baeldung/convertlisttomap/ConvertListWithDiplicatedIdToMapServiceUnitTest.java → core-java-collections/src/test/java/com/baeldung/convertlisttomap/ConvertListWithDiplicatedIdToMapServiceUnitTest.java
View File

@ -1,15 +1,15 @@
package com.baeldung.convertlisttomap;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.hasItem;
import static org.hamcrest.Matchers.hasSize;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.hasItem;
import static org.hamcrest.Matchers.hasSize;
public class ConvertListWithDiplicatedIdToMapServiceUnitTest {
List<Animal> duplicatedIdList;

2
core-java-io/README.md
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@ -28,3 +28,5 @@
- [Guide to Java NIO2 Asynchronous Channel APIs](http://www.baeldung.com/java-nio-2-async-channels)
- [A Guide to NIO2 Asynchronous Socket Channel](http://www.baeldung.com/java-nio2-async-socket-channel)
- [Download a File From an URL in Java](http://www.baeldung.com/java-download-file)
- [Create a Symbolic Link with Java](http://www.baeldung.com/java-symlink)
- [Quick Use of FilenameFilter](http://www.baeldung.com/java-filename-filter)

5
core-java/README.md
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@ -163,3 +163,8 @@
- [Console I/O in Java](http://www.baeldung.com/java-console-input-output)
- [Guide to the java.util.Arrays Class](http://www.baeldung.com/java-util-arrays)
- [Create a Custom Exception in Java](http://www.baeldung.com/java-new-custom-exception)
- [Guide to java.util.GregorianCalendar](http://www.baeldung.com/java-gregorian-calendar)
- [Java Global Exception Handler](http://www.baeldung.com/java-global-exception-handler)
- [Encrypting and Decrypting Files in Java](http://www.baeldung.com/java-cipher-input-output-stream)
- [How to Get the Size of an Object in Java](http://www.baeldung.com/java-size-of-object)
- [Exception Handling in Java](http://www.baeldung.com/java-exceptions)

120
core-java/pom.xml
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@ -173,6 +173,19 @@
<artifactId>c3p0</artifactId>
<version>${c3p0.version}</version>
</dependency>
<!-- instrumentation -->
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>${javaassist.version}</version>
</dependency>
<dependency>
<groupId>com.sun</groupId>
<artifactId>tools</artifactId>
<version>1.8.0</version>
<scope>system</scope>
<systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>
</dependencies>
<build>
@ -400,6 +413,111 @@
</plugins>
</build>
</profile>
<!-- java instrumentation profiles to build jars -->
<profile>
<id>buildAgentLoader</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<classifier>agentLoader</classifier>
<classesDirectory>target/classes</classesDirectory>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
<includes>
<include>com/baeldung/instrumentation/application/AgentLoader.class</include>
<include>com/baeldung/instrumentation/application/Launcher.class</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>buildApplication</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<classifier>application</classifier>
<classesDirectory>target/classes</classesDirectory>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
<includes>
<include>com/baeldung/instrumentation/application/MyAtm.class</include>
<include>com/baeldung/instrumentation/application/MyAtmApplication.class</include>
<include>com/baeldung/instrumentation/application/Launcher.class</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>buildAgent</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<classifier>agent</classifier>
<classesDirectory>target/classes</classesDirectory>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
<manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
</archive>
<includes>
<include>com/baeldung/instrumentation/agent/AtmTransformer.class</include>
<include>com/baeldung/instrumentation/agent/MyInstrumentationAgent.class</include>
</includes>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
@ -453,6 +571,8 @@
<!-- Mime Type Libraries -->
<tika.version>1.18</tika.version>
<jmime-magic.version>0.1.5</jmime-magic.version>
<!-- instrumentation -->
<javaassist.version>3.21.0-GA</javaassist.version>
</properties>
</project>

6
core-java/src/main/java/com/baeldung/connectionpool/connectionpools/BasicConnectionPool.java
View File

@ -33,7 +33,7 @@ public class BasicConnectionPool implements ConnectionPool {
@Override
public Connection getConnection() throws SQLException {
if (connectionPool.size() == 0) {
if (connectionPool.isEmpty()) {
if (usedConnections.size() < MAX_POOL_SIZE) {
connectionPool.add(createConnection(url, user, password));
} else {
@ -76,9 +76,7 @@ public class BasicConnectionPool implements ConnectionPool {
}
public void shutdown() throws SQLException {
for (Connection c : usedConnections) {
this.releaseConnection(c);
}
usedConnections.forEach(this::releaseConnection);
for (Connection c : connectionPool) {
c.close();
}

70
core-java/src/main/java/com/baeldung/instrumentation/agent/AtmTransformer.java Normal file
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@ -0,0 +1,70 @@
package com.baeldung.instrumentation.agent;
import javassist.CannotCompileException;
import javassist.ClassPool;
import javassist.CtClass;
import javassist.CtMethod;
import javassist.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.lang.instrument.ClassFileTransformer;
import java.lang.instrument.IllegalClassFormatException;
import java.security.ProtectionDomain;
public class AtmTransformer implements ClassFileTransformer {
private static Logger LOGGER = LoggerFactory.getLogger(AtmTransformer.class);
private static final String WITHDRAW_MONEY_METHOD = "withdrawMoney";
/** The internal form class name of the class to transform */
private String targetClassName;
/** The class loader of the class we want to transform */
private ClassLoader targetClassLoader;
public AtmTransformer(String targetClassName, ClassLoader targetClassLoader) {
this.targetClassName = targetClassName;
this.targetClassLoader = targetClassLoader;
}
@Override
public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined,
ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {
byte[] byteCode = classfileBuffer;
String finalTargetClassName = this.targetClassName.replaceAll("\\.", "/"); //replace . with /
if (!className.equals(finalTargetClassName)) {
return byteCode;
}
if (className.equals(finalTargetClassName) && loader.equals(targetClassLoader)) {
LOGGER.info("[Agent] Transforming class MyAtm");
try {
ClassPool cp = ClassPool.getDefault();
CtClass cc = cp.get(targetClassName);
CtMethod m = cc.getDeclaredMethod(WITHDRAW_MONEY_METHOD);
m.addLocalVariable("startTime", CtClass.longType);
m.insertBefore("startTime = System.currentTimeMillis();");
StringBuilder endBlock = new StringBuilder();
m.addLocalVariable("endTime", CtClass.longType);
m.addLocalVariable("opTime", CtClass.longType);
endBlock.append("endTime = System.currentTimeMillis();");
endBlock.append("opTime = (endTime-startTime)/1000;");
endBlock.append("LOGGER.info(\"[Application] Withdrawal operation completed in:\" + opTime + \" seconds!\");");
m.insertAfter(endBlock.toString());
byteCode = cc.toBytecode();
cc.detach();
} catch (NotFoundException | CannotCompileException | IOException e) {
LOGGER.error("Exception", e);
}
}
return byteCode;
}
}

59
core-java/src/main/java/com/baeldung/instrumentation/agent/MyInstrumentationAgent.java Normal file
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@ -0,0 +1,59 @@
package com.baeldung.instrumentation.agent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.instrument.Instrumentation;
public class MyInstrumentationAgent {
private static Logger LOGGER = LoggerFactory.getLogger(MyInstrumentationAgent.class);
public static void premain(String agentArgs, Instrumentation inst) {
LOGGER.info("[Agent] In premain method");
String className = "com.baeldung.instrumentation.application.MyAtm";
transformClass(className,inst);
}
public static void agentmain(String agentArgs, Instrumentation inst) {
LOGGER.info("[Agent] In agentmain method");
String className = "com.baeldung.instrumentation.application.MyAtm";
transformClass(className,inst);
}
private static void transformClass(String className, Instrumentation instrumentation) {
Class<?> targetCls = null;
ClassLoader targetClassLoader = null;
// see if we can get the class using forName
try {
targetCls = Class.forName(className);
targetClassLoader = targetCls.getClassLoader();
transform(targetCls, targetClassLoader, instrumentation);
return;
} catch (Exception ex) {
LOGGER.error("Class [{}] not found with Class.forName");
}
// otherwise iterate all loaded classes and find what we want
for(Class<?> clazz: instrumentation.getAllLoadedClasses()) {
if(clazz.getName().equals(className)) {
targetCls = clazz;
targetClassLoader = targetCls.getClassLoader();
transform(targetCls, targetClassLoader, instrumentation);
return;
}
}
throw new RuntimeException("Failed to find class [" + className + "]");
}
private static void transform(Class<?> clazz, ClassLoader classLoader, Instrumentation instrumentation) {
AtmTransformer dt = new AtmTransformer(clazz.getName(), classLoader);
instrumentation.addTransformer(dt, true);
try {
instrumentation.retransformClasses(clazz);
} catch (Exception ex) {
throw new RuntimeException("Transform failed for class: [" + clazz.getName() + "]", ex);
}
}
}

46
core-java/src/main/java/com/baeldung/instrumentation/application/AgentLoader.java Normal file
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@ -0,0 +1,46 @@
package com.baeldung.instrumentation.application;
import com.sun.tools.attach.VirtualMachine;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.util.Optional;
/**
* Created by adi on 6/10/18.
*/
public class AgentLoader {
private static Logger LOGGER = LoggerFactory.getLogger(AgentLoader.class);
public static void run(String[] args) {
String agentFilePath = "/home/adi/Desktop/agent-1.0.0-jar-with-dependencies.jar";
String applicationName = "MyAtmApplication";
//iterate all jvms and get the first one that matches our application name
Optional<String> jvmProcessOpt = Optional.ofNullable(VirtualMachine.list()
.stream()
.filter(jvm -> {
LOGGER.info("jvm:{}", jvm.displayName());
return jvm.displayName().contains(applicationName);
})
.findFirst().get().id());
if(!jvmProcessOpt.isPresent()) {
LOGGER.error("Target Application not found");
return;
}
File agentFile = new File(agentFilePath);
try {
String jvmPid = jvmProcessOpt.get();
LOGGER.info("Attaching to target JVM with PID: " + jvmPid);
VirtualMachine jvm = VirtualMachine.attach(jvmPid);
jvm.loadAgent(agentFile.getAbsolutePath());
jvm.detach();
LOGGER.info("Attached to target JVM and loaded Java agent successfully");
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}

14
core-java/src/main/java/com/baeldung/instrumentation/application/Launcher.java Normal file
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@ -0,0 +1,14 @@
package com.baeldung.instrumentation.application;
/**
* Created by adi on 6/14/18.
*/
public class Launcher {
public static void main(String[] args) throws Exception {
if(args[0].equals("StartMyAtmApplication")) {
new MyAtmApplication().run(args);
} else if(args[0].equals("LoadAgent")) {
new AgentLoader().run(args);
}
}
}

19
core-java/src/main/java/com/baeldung/instrumentation/application/MyAtm.java Normal file
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@ -0,0 +1,19 @@
package com.baeldung.instrumentation.application;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Created by adi on 6/11/18.
*/
public class MyAtm {
private static Logger LOGGER = LoggerFactory.getLogger(MyAtm.class);
private static final int account = 10;
public static void withdrawMoney(int amount) throws InterruptedException {
Thread.sleep(2000l); //processing going on here
LOGGER.info("[Application] Successful Withdrawal of [{}] units!", amount);
}
}

19
core-java/src/main/java/com/baeldung/instrumentation/application/MyAtmApplication.java Normal file
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@ -0,0 +1,19 @@
package com.baeldung.instrumentation.application;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MyAtmApplication {
private static Logger LOGGER = LoggerFactory.getLogger(MyAtmApplication.class);
public static void run(String[] args) throws Exception {
LOGGER.info("[Application] Starting ATM application");
MyAtm.withdrawMoney(Integer.parseInt(args[2]));
Thread.sleep(Long.valueOf(args[1]));
MyAtm.withdrawMoney(Integer.parseInt(args[3]));
}
}

5
core-java/src/main/resources/META-INF/MANIFEST.MF Normal file
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@ -0,0 +1,5 @@
Agent-Class: com.baeldung.instrumentation.agent.MyInstrumentationAgent
Can-Redefine-Classes: true
Can-Retransform-Classes: true
Premain-Class: com.baeldung.instrumentation.agent.MyInstrumentationAgent
Main-Class: com.baeldung.instrumentation.application.Launcher

13
core-java/src/main/resources/log4j2.xml Normal file
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@ -0,0 +1,13 @@
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level - %msg%n"/>
</Console>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>

2
core-kotlin/README.md
View File

@ -34,3 +34,5 @@
- [Java EE 8 Security API](http://www.baeldung.com/java-ee-8-security)
- [Kotlin with Ktor](http://www.baeldung.com/kotlin-ktor)
- [Working with Enums in Kotlin](http://www.baeldung.com/kotlin-enum)
- [Create a Java and Kotlin Project with Maven](http://www.baeldung.com/kotlin-maven-java-project)
- [Reflection with Kotlin](http://www.baeldung.com/kotlin-reflection)

2
google-web-toolkit/README.md Normal file
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@ -0,0 +1,2 @@
### Relevant Articles:
- [Introduction to GWT](http://www.baeldung.com/gwt)

2
libraries/README.md
View File

@ -85,7 +85,7 @@
- [Implementing a FTP-Client in Java](http://www.baeldung.com/java-ftp-client)
- [Convert String to Date in Java](http://www.baeldung.com/java-string-to-date)
- [Histograms with Apache Commons Frequency](http://www.baeldung.com/apache-commons-frequency)
- [Guide to Resilience4j](http://www.baeldung.com/resilience4j)
The libraries module contains examples related to small libraries that are relatively easy to use and does not require any separate module of its own.

2
patterns/README.md
View File

@ -1,4 +1,4 @@
###Relevant Articles:
### Relevant Articles:
- [A Guide to the Front Controller Pattern in Java](http://www.baeldung.com/java-front-controller-pattern)
- [Introduction to Intercepting Filter Pattern in Java](http://www.baeldung.com/intercepting-filter-pattern-in-java)
- [Implementing the Template Method Pattern in Java](http://www.baeldung.com/java-template-method-pattern)

1
patterns/design-patterns/README.md
View File

@ -10,3 +10,4 @@
- [Composite Design Pattern in Java](http://www.baeldung.com/java-composite-pattern)
- [Visitor Design Pattern in Java](http://www.baeldung.com/java-visitor-pattern)
- [The DAO Pattern in Java](http://www.baeldung.com/java-dao-pattern)
- [Interpreter Design Pattern in Java](http://www.baeldung.com/java-interpreter-pattern)

5
pom.xml
View File

@ -422,6 +422,7 @@
<module>spring-boot-persistence</module>
<module>spring-boot-security</module>
<module>spring-boot-mvc</module>
<module>spring-boot-vue</module>
<module>spring-boot-logging-log4j2</module>
<module>spring-cloud-data-flow</module>
<module>spring-cloud</module>
@ -433,6 +434,7 @@
<module>spring-data-couchbase-2</module>
<module>persistence-modules/spring-data-dynamodb</module>
<module>spring-data-elasticsearch</module>
<module>spring-data-jpa</module>
<module>spring-data-keyvalue</module>
<module>spring-data-mongodb</module>
<module>persistence-modules/spring-data-neo4j</module>
@ -1222,4 +1224,5 @@
<maven-pmd-plugin.version>3.8</maven-pmd-plugin.version>
</properties>
</project>
</project>

1
rxjava/README.md
View File

@ -15,3 +15,4 @@
- [RxJava Maybe](http://www.baeldung.com/rxjava-maybe)
- [Introduction to RxRelay for RxJava](http://www.baeldung.com/rx-relay)
- [Filtering Observables in RxJava](http://www.baeldung.com/rxjava-filtering)
- [RxJava One Observable, Multiple Subscribers](http://www.baeldung.com/rxjava-multiple-subscribers-observable)

3
spring-5-reactive/README.md
View File

@ -9,4 +9,5 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
- [Spring 5 WebClient](http://www.baeldung.com/spring-5-webclient)
- [Spring Security 5 for Reactive Applications](http://www.baeldung.com/spring-security-5-reactive)
- [Reactive WebSockets with Spring 5](http://www.baeldung.com/spring-5-reactive-websockets)
- [Spring Webflux Filters](http://www.baeldung.com/spring-webflux-filters)
- [Spring Webflux Filters](http://www.baeldung.com/spring-webflux-filters)
- [How to Set a Header on a Response with Spring 5](http://www.baeldung.com/spring-response-header)

BIN
spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.jar vendored
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1
spring-boot-compare-embedded/.mvn/wrapper/maven-wrapper.properties vendored
View File

@ -1 +0,0 @@
distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.2/apache-maven-3.5.2-bin.zip

225
spring-boot-compare-embedded/mvnw vendored
View File

@ -1,225 +0,0 @@
#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file 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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven2 Start Up Batch script
#
# Required ENV vars:
# ------------------
# JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
# M2_HOME - location of maven2's installed home dir
# MAVEN_OPTS - parameters passed to the Java VM when running Maven
# e.g. to debug Maven itself, use
# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
# ----------------------------------------------------------------------------
if [ -z "$MAVEN_SKIP_RC" ] ; then
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$HOME/.mavenrc" ] ; then
. "$HOME/.mavenrc"
fi
fi
# OS specific support. $var _must_ be set to either true or false.
cygwin=false;
darwin=false;
mingw=false
case "`uname`" in
CYGWIN*) cygwin=true ;;
MINGW*) mingw=true;;
Darwin*) darwin=true
# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
if [ -z "$JAVA_HOME" ]; then
if [ -x "/usr/libexec/java_home" ]; then
export JAVA_HOME="`/usr/libexec/java_home`"
else
export JAVA_HOME="/Library/Java/Home"
fi
fi
;;
esac
if [ -z "$JAVA_HOME" ] ; then
if [ -r /etc/gentoo-release ] ; then
JAVA_HOME=`java-config --jre-home`
fi
fi
if [ -z "$M2_HOME" ] ; then
## resolve links - $0 may be a link to maven's home
PRG="$0"
# need this for relative symlinks
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG="`dirname "$PRG"`/$link"
fi
done
saveddir=`pwd`
M2_HOME=`dirname "$PRG"`/..
# make it fully qualified
M2_HOME=`cd "$M2_HOME" && pwd`
cd "$saveddir"
# echo Using m2 at $M2_HOME
fi
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --unix "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
fi
# For Migwn, ensure paths are in UNIX format before anything is touched
if $mingw ; then
[ -n "$M2_HOME" ] &&
M2_HOME="`(cd "$M2_HOME"; pwd)`"
[ -n "$JAVA_HOME" ] &&
JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
# TODO classpath?
fi
if [ -z "$JAVA_HOME" ]; then
javaExecutable="`which javac`"
if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
# readlink(1) is not available as standard on Solaris 10.
readLink=`which readlink`
if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
if $darwin ; then
javaHome="`dirname \"$javaExecutable\"`"
javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
else
javaExecutable="`readlink -f \"$javaExecutable\"`"
fi
javaHome="`dirname \"$javaExecutable\"`"
javaHome=`expr "$javaHome" : '\(.*\)/bin'`
JAVA_HOME="$javaHome"
export JAVA_HOME
fi
fi
fi
if [ -z "$JAVACMD" ] ; then
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
else
JAVACMD="`which java`"
fi
fi
if [ ! -x "$JAVACMD" ] ; then
echo "Error: JAVA_HOME is not defined correctly." >&2
echo " We cannot execute $JAVACMD" >&2
exit 1
fi
if [ -z "$JAVA_HOME" ] ; then
echo "Warning: JAVA_HOME environment variable is not set."
fi
CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
if [ -z "$1" ]
then
echo "Path not specified to find_maven_basedir"
return 1
fi
basedir="$1"
wdir="$1"
while [ "$wdir" != '/' ] ; do
if [ -d "$wdir"/.mvn ] ; then
basedir=$wdir
break
fi
# workaround for JBEAP-8937 (on Solaris 10/Sparc)
if [ -d "${wdir}" ]; then
wdir=`cd "$wdir/.."; pwd`
fi
# end of workaround
done
echo "${basedir}"
}
# concatenates all lines of a file
concat_lines() {
if [ -f "$1" ]; then
echo "$(tr -s '\n' ' ' < "$1")"
fi
}
BASE_DIR=`find_maven_basedir "$(pwd)"`
if [ -z "$BASE_DIR" ]; then
exit 1;
fi
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
echo $MAVEN_PROJECTBASEDIR
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --path --windows "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
[ -n "$MAVEN_PROJECTBASEDIR" ] &&
MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
fi
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

143
spring-boot-compare-embedded/mvnw.cmd vendored
View File

@ -1,143 +0,0 @@
@REM ----------------------------------------------------------------------------
@REM Licensed to the Apache Software Foundation (ASF) under one
@REM or more contributor license agreements. See the NOTICE file
@REM distributed with this work for additional information
@REM regarding copyright ownership. The ASF licenses this file
@REM to you under the Apache License, Version 2.0 (the
@REM "License"); you may not use this file except in compliance
@REM with the License. You may obtain a copy of the License at
@REM
@REM http://www.apache.org/licenses/LICENSE-2.0
@REM
@REM Unless required by applicable law or agreed to in writing,
@REM software distributed under the License is distributed on an
@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@REM KIND, either express or implied. See the License for the
@REM specific language governing permissions and limitations
@REM under the License.
@REM ----------------------------------------------------------------------------
@REM ----------------------------------------------------------------------------
@REM Maven2 Start Up Batch script
@REM
@REM Required ENV vars:
@REM JAVA_HOME - location of a JDK home dir
@REM
@REM Optional ENV vars
@REM M2_HOME - location of maven2's installed home dir
@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
@REM e.g. to debug Maven itself, use
@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
@REM ----------------------------------------------------------------------------
@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
@echo off
@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
@REM set %HOME% to equivalent of $HOME
if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
@REM Execute a user defined script before this one
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
@REM check for pre script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
:skipRcPre
@setlocal
set ERROR_CODE=0
@REM To isolate internal variables from possible post scripts, we use another setlocal
@setlocal
@REM ==== START VALIDATION ====
if not "%JAVA_HOME%" == "" goto OkJHome
echo.
echo Error: JAVA_HOME not found in your environment. >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
:OkJHome
if exist "%JAVA_HOME%\bin\java.exe" goto init
echo.
echo Error: JAVA_HOME is set to an invalid directory. >&2
echo JAVA_HOME = "%JAVA_HOME%" >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
@REM ==== END VALIDATION ====
:init
@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
@REM Fallback to current working directory if not found.
set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
set EXEC_DIR=%CD%
set WDIR=%EXEC_DIR%
:findBaseDir
IF EXIST "%WDIR%"\.mvn goto baseDirFound
cd ..
IF "%WDIR%"=="%CD%" goto baseDirNotFound
set WDIR=%CD%
goto findBaseDir
:baseDirFound
set MAVEN_PROJECTBASEDIR=%WDIR%
cd "%EXEC_DIR%"
goto endDetectBaseDir
:baseDirNotFound
set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
cd "%EXEC_DIR%"
:endDetectBaseDir
IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
@setlocal EnableExtensions EnableDelayedExpansion
for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
:endReadAdditionalConfig
SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
if ERRORLEVEL 1 goto error
goto end
:error
set ERROR_CODE=1
:end
@endlocal & set ERROR_CODE=%ERROR_CODE%
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
@REM check for post script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
:skipRcPost
@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
if "%MAVEN_BATCH_PAUSE%" == "on" pause
if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
exit /B %ERROR_CODE%

107
spring-boot-compare-embedded/pom.xml
View File

@ -1,107 +0,0 @@
<?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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>spring-boot-compare-embedded</artifactId>
<version>0.0.1</version>
<packaging>jar</packaging>
<name>spring-boot-compare-embedded</name>
<description>This is a simple application with used to compare embedded servlet containers.</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- tomcat -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- jetty -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-web</artifactId> -->
<!-- <exclusions> -->
<!-- <exclusion> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-tomcat</artifactId> -->
<!-- </exclusion> -->
<!-- </exclusions> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-jetty</artifactId> -->
<!-- </dependency> -->
<!-- undertow -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-web</artifactId> -->
<!-- <exclusions> -->
<!-- <exclusion> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-tomcat</artifactId> -->
<!-- </exclusion> -->
<!-- </exclusions> -->
<!-- </dependency> -->
<!-- <dependency> -->
<!-- <groupId>org.springframework.boot</groupId> -->
<!-- <artifactId>spring-boot-starter-undertow</artifactId> -->
<!-- </dependency> -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-core</artifactId>
<version>1.21</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-generator-annprocess</artifactId>
<version>1.21</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
</project>

0
spring-boot-compare-embedded/src/main/resources/META-INF/BenchmarkList
View File

119
spring-boot-compare-embedded/src/test/java/com/baeldung/embedded/ComparisonBenchmarkTest.java
View File

@ -1,119 +0,0 @@
package com.baeldung.embedded;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.assertj.core.util.Lists;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
import org.openjdk.jmh.runner.options.TimeValue;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.web.client.RestTemplate;
import com.jayway.jsonpath.JsonPath;
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.DEFINED_PORT)
public class ComparisonBenchmarkTest {
private static final String BASE_URL = "http://localhost:8080/actuator/metrics";
@Before
public void getAndPrintActuatorMetrics() {
RestTemplate restTemplate = new RestTemplate();
for (MetricConfiguration c : getMetricConfigs()) {
getAndPrintActuatorMetric(restTemplate, c);
}
System.out.println("");
}
@Test
public void launchBenchmark() throws Exception {
Options opt = new OptionsBuilder()
.include(this.getClass().getName() + ".*")
.mode(Mode.Throughput)
.timeUnit(TimeUnit.SECONDS)
.warmupIterations(3)
.warmupTime(TimeValue.seconds(10))
.measurementIterations(3)
.measurementTime(TimeValue.minutes(1))
.threads(5)
.forks(1)
.shouldFailOnError(true)
.shouldDoGC(true)
.build();
new Runner(opt).run();
}
@Benchmark
public void benchmark() throws Exception {
RestTemplate template = new RestTemplate();
for (int i = 0; i < 10; i++) {
MetricNames metricNames = template.getForObject(BASE_URL, MetricNames.class);
metricNames.getNames().stream().forEach(n -> {
template.getForObject(BASE_URL + "/" + n, String.class);
});
}
}
static class MetricNames {
private String[] names;
public List<String> getNames() {
return Arrays.asList(this.names);
}
}
static class MetricConfiguration {
private String label;
private String metric;
private Class<?> type;
private String jsonPath;
public MetricConfiguration(String label, String metric, Class<?> type, String path) {
this.label = label;
this.metric = metric;
this.type = type;
this.jsonPath = path;
}
public String getLabel() {
return label;
}
public Class<?> getType() {
return type;
}
public String getJsonPath() {
return jsonPath;
}
public String getMetric() {
return metric;
}
}
private List<MetricConfiguration> getMetricConfigs() {
return Lists.newArrayList(
new MetricConfiguration("jvm.memory.used", "jvm.memory.used", Integer.class, "$.measurements[0].value"),
new MetricConfiguration("jvm.classes.loaded", "jvm.classes.loaded", Integer.class, "$.measurements[0].value"),
new MetricConfiguration("jvm.threads.live", "jvm.threads.live", Integer.class, "$.measurements[0].value"));
}
private void getAndPrintActuatorMetric(RestTemplate restTemplate, MetricConfiguration c) {
String response = restTemplate.getForObject(BASE_URL + "/" + c.getMetric(), String.class);
String value = (JsonPath.parse(response).read(c.getJsonPath(), c.getType())).toString();
System.out.println("Startup Metric >>> " + c.getLabel() + "=" + value);
}
}

5
spring-boot-compare-embedded/src/test/resources/logback-test.xml
View File

@ -1,5 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/base.xml" />
<logger name="org.springframework" level="INFO"/>
</configuration>

15
spring-boot-ops/README.md
View File

@ -1,4 +1,11 @@
### Relevant Articles:
================================
- [Spring Boot Console Application](http://www.baeldung.com/spring-boot-console-app)
### Relevant Articles:
- [Deploy a Spring Boot WAR into a Tomcat Server](http://www.baeldung.com/spring-boot-war-tomcat-deploy)
- [Spring Boot Dependency Management with a Custom Parent](http://www.baeldung.com/spring-boot-dependency-management-custom-parent)
- [A Custom Data Binder in Spring MVC](http://www.baeldung.com/spring-mvc-custom-data-binder)
- [Create a Fat Jar App with Spring Boot](http://www.baeldung.com/deployable-fat-jar-spring-boot)
- [Introduction to WebJars](http://www.baeldung.com/maven-webjars)
- [Intro to Spring Boot Starters](http://www.baeldung.com/spring-boot-starters)
- [A Quick Guide to Maven Wrapper](http://www.baeldung.com/maven-wrapper)
- [Shutdown a Spring Boot Application](http://www.baeldung.com/spring-boot-shutdown)
- [Spring Boot Console Application](http://www.baeldung.com/spring-boot-console-app)

2
spring-boot-compare-embedded/src/main/java/com/baeldung/embedded/ComparisonApplication.java → spring-boot-ops/src/main/java/com/baeldung/compare/ComparisonApplication.java
View File

@ -1,4 +1,4 @@
package com.baeldung.embedded;
package com.baeldung.compare;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

65
spring-boot-ops/src/main/java/com/baeldung/compare/StartupEventHandler.java Normal file
View File

@ -0,0 +1,65 @@
package com.baeldung.compare;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.function.BiFunction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Component;
import io.micrometer.core.instrument.Meter;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Statistic;
@Component
public class StartupEventHandler {
// logger, constructor
private static Logger logger = LoggerFactory.getLogger(StartupEventHandler.class);
public StartupEventHandler(MeterRegistry registry) {
this.meterRegistry = registry;
}
private String[] METRICS = {
"jvm.memory.used",
"jvm.classes.loaded",
"jvm.threads.live"};
private String METRIC_MSG_FORMAT = "Startup Metric >> {}={}";
private MeterRegistry meterRegistry;
@EventListener
public void getAndLogStartupMetrics(
ApplicationReadyEvent event) {
Arrays.asList(METRICS)
.forEach(this::getAndLogActuatorMetric);
}
private void getAndLogActuatorMetric(String metric) {
Meter meter = meterRegistry.find(metric).meter();
Map<Statistic, Double> stats = getSamples(meter);
logger.info(METRIC_MSG_FORMAT, metric, stats.get(Statistic.VALUE).longValue());
}
private Map<Statistic, Double> getSamples(Meter meter) {
Map<Statistic, Double> samples = new LinkedHashMap<>();
mergeMeasurements(samples, meter);
return samples;
}
private void mergeMeasurements(Map<Statistic, Double> samples, Meter meter) {
meter.measure().forEach((measurement) -> samples.merge(measurement.getStatistic(),
measurement.getValue(), mergeFunction(measurement.getStatistic())));
}
private BiFunction<Double, Double, Double> mergeFunction(Statistic statistic) {
return Statistic.MAX.equals(statistic) ? Double::max : Double::sum;
}
}

0
spring-boot-compare-embedded/src/main/resources/application.properties → spring-boot-ops/src/main/resources/application.properties
View File

15
spring-boot-compare-embedded/.gitignore → spring-boot-vue/.gitignore vendored
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@ -1,4 +1,4 @@
target/
/target/
!.mvn/wrapper/maven-wrapper.jar
### STS ###
@ -8,6 +8,7 @@ target/
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
@ -16,9 +17,9 @@ target/
*.ipr
### NetBeans ###
nbproject/private/
build/
nbbuild/
dist/
nbdist/
.nb-gradle/
/nbproject/private/
/build/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/

56
spring-boot-vue/pom.xml Normal file
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@ -0,0 +1,56 @@
<?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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>spring-boot-vue</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-boot-vue</name>
<description>Demo project for Spring Boot Vue project</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- needed to render html templates in /resources/templates -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

13
spring-boot-vue/src/main/java/com/baeldung/springbootmvc/SpringBootMvcApplication.java Normal file
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@ -0,0 +1,13 @@
package com.baeldung.springbootmvc;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
@SpringBootApplication
public class SpringBootMvcApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootMvcApplication.class, args);
}
}

18
spring-boot-vue/src/main/java/com/baeldung/springbootmvc/controllers/MainController.java Normal file
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@ -0,0 +1,18 @@
package com.baeldung.springbootmvc.controllers;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class MainController {
@RequestMapping(value = "/", method = RequestMethod.GET)
public String index(Model model) {
// this attribute will be available in the view index.html as a thymeleaf variable
model.addAttribute("eventName", "FIFA 2018");
// this just means render index.html from static/ area
return "index";
}
}

0
spring-boot-compare-embedded/README.MD → spring-boot-vue/src/main/resources/application.properties
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98
spring-boot-vue/src/main/resources/templates/index.html Normal file
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<!doctype html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Include Bootstrap -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap-theme.min.css"
integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" crossorigin="anonymous">
</head>
<body>
<div class="container-fluid">
<h3 class="display-3">This is an example Vue.js application developed with Spring Boot</h3>
<p class="lead">This file is rendered by a Spring built-in default controller for index.html (/) using
Spring's built-in
Thymeleaf templating engine.
Although we don't need it per se, we customized the information passed to this
view from thymeleaf by adding a controller method for "/" route to demonstrate how to pass information from
Thymeleaf to this page.
The combination of template engine and frontend framework like Vue can make this a powerful approach to build
more complex applications while leveraging the benefits of a framework like Vue.js.
You can use thymeleaf features too but this project focuses mainly on using Vue.js on the
frontend as the framework and makes minimal use of Thymeleaf.
Also we don't use any routing and multiple components in this example, so what you see is technically a
Single Page Application (SPA) without any routes configured.
</p>
<div id="contents-main">
<div class="lead">
<strong>Name of Event:</strong>
<span th:text="${eventName}"></span>
</div>
<div id="contents">
<!-- Since we create a Vue component pointing to id=contents,
Vue will generate a unordered list of items such
as this inside this div.
v-for will cause a loop to run over all players
as per the players array found in app.data
<ul>
<li></li>
<li></li>
</ul>
-->
<ul>
<li style="list-style-type:none" v-for="player in players">
<player-card
v-bind:player="player" v-bind:key="player.id">
</player-card>
</li>
</ul>
</div>
</div>
</div>
<!-- include Vue.js -->
<!-- we include babel js so that we can write ES6 code in the browser
for a more production like setup it is recommended to setup a build process
to transpile and minify the code (such as using webpack)
-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.21.1/babel.min.js"></script>
<script type="text/babel">
// player-card is now a Vue component that generates a 'card' showing a player
// It can be used
// declaratively like <player-card v-bind:player="someplayer">
Vue.component('player-card', {
props: ['player'],
template: `<div class="card">
<div class="card-body">
<h6 class="card-title">
{{ player.name }}
</h6>
<p class="card-text">
<div>
{{ player.description }}
</div>
</p>
</div>
</div>`
});
var app = new Vue({
el: '#contents',
data: {
players: [
{id: "1", name: "Lionel Messi", description: "Argentina's superstar"},
{id: "2", name: "Christiano Ronaldo", description: "Portugal top-ranked player"}
]
}
});
</script>
</body>
</html>

35
spring-boot-vue/src/test/java/com/baeldung/springbootmvc/SpringBootMvcApplicationTests.java Normal file
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@ -0,0 +1,35 @@
package com.baeldung.springbootmvc;
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.result.MockMvcResultMatchers;
import static org.hamcrest.CoreMatchers.containsString;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class SpringBootMvcApplicationTests {
@Autowired
private MockMvc mockMvc;
/**
* If this test passes, we got a page with the thymeleaf provided variable
* value for eventName
*/
@Test
public void shouldLoadCorrectIndexPage() throws Exception {
mockMvc.perform(get("/")).andExpect(status().isOk()).
andExpect(MockMvcResultMatchers.content()
.string(containsString("FIFA 2018")));
}
}

1
spring-boot/README.MD
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@ -34,3 +34,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
- [Spring Boot Exit Codes](http://www.baeldung.com/spring-boot-exit-codes)
- [Guide to the Favicon in Spring Boot](http://www.baeldung.com/spring-boot-favicon)
- [Spring Shutdown Callbacks](http://www.baeldung.com/spring-shutdown-callbacks)
- [Spring Boot Integration Testing with Embedded MongoDB](http://www.baeldung.com/spring-boot-embedded-mongodb)

26
spring-data-jpa/pom.xml Normal file
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@ -0,0 +1,26 @@
<?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">
<parent>
<artifactId>parent-boot-2</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>spring-data-jpa</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
</dependencies>
</project>

14
spring-data-jpa/src/main/java/com/baeldung/Application.java Normal file
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@ -0,0 +1,14 @@
package com.baeldung;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
@SpringBootApplication
public class Application {
private static ApplicationContext applicationContext;
public static void main(String[] args) {
applicationContext = SpringApplication.run(Application.class, args);
}
}

0
spring-boot-persistence/src/main/java/com/baeldung/domain/Article.java → spring-data-jpa/src/main/java/com/baeldung/domain/Article.java
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0
spring-boot-persistence/src/main/java/com/baeldung/repository/ArticleRepository.java → spring-data-jpa/src/main/java/com/baeldung/repository/ArticleRepository.java
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1
spring-boot-persistence/src/test/java/com/baeldung/repository/ArticleRepositoryIntegrationTest.java → spring-data-jpa/src/test/java/com/baeldung/repository/ArticleRepositoryIntegrationTest.java
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@ -1,6 +1,7 @@
package com.baeldung.repository;
import com.baeldung.domain.Article;
import com.baeldung.repository.ArticleRepository;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;

15
spring-data-jpa/src/test/resources/application.properties Normal file
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@ -0,0 +1,15 @@
# spring.datasource.x
spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.url=jdbc:h2:mem:db;DB_CLOSE_DELAY=-1
spring.datasource.username=sa
spring.datasource.password=sa
# hibernate.X
hibernate.dialect=org.hibernate.dialect.H2Dialect
hibernate.show_sql=true
hibernate.hbm2ddl.auto=create-drop
hibernate.cache.use_second_level_cache=true
hibernate.cache.use_query_cache=true
hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory
spring.datasource.data=import_articles.sql

0
spring-boot-persistence/src/test/resources/import_articles.sql → spring-data-jpa/src/test/resources/import_articles.sql
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2
spring-mvc-java/README.md
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@ -32,3 +32,5 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
- [Spring Scheduling Annotations](http://www.baeldung.com/spring-scheduling-annotations)
- [Spring Web Annotations](http://www.baeldung.com/spring-mvc-annotations)
- [Spring Core Annotations](http://www.baeldung.com/spring-core-annotations)
- [Using Spring ResponseEntity to Manipulate the HTTP Response](http://www.baeldung.com/spring-response-entity)
- [Using Spring @ResponseStatus to Set HTTP Status Code](http://www.baeldung.com/spring-response-status)

1
spring-rest/README.md
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@ -24,3 +24,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
- [Using the Spring RestTemplate Interceptor](http://www.baeldung.com/spring-rest-template-interceptor)
- [Configure a RestTemplate with RestTemplateBuilder](http://www.baeldung.com/spring-rest-template-builder)
- [Get and Post Lists of Objects with RestTemplate](http://www.baeldung.com/spring-rest-template-list)
- [How to Set a Header on a Response with Spring 5](http://www.baeldung.com/spring-response-header)

1
spring-swagger-codegen/spring-swagger-codegen-api-client/pom.xml
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@ -37,6 +37,7 @@
<groupId>com.baeldung</groupId>
<artifactId>spring-swagger-codegen</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../spring-swagger-codegen</relativePath>
</parent>
<build>

11
spring-swagger-codegen/spring-swagger-codegen-app/pom.xml
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@ -5,11 +5,12 @@
<groupId>com.baeldung</groupId>
<artifactId>spring-swagger-codegen-app</artifactId>
<version>0.0.1-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.RELEASE</version>
<groupId>com.baeldung</groupId>
<artifactId>spring-swagger-codegen</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../spring-swagger-codegen</relativePath>
</parent>
<dependencies>
@ -21,6 +22,7 @@
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
@ -36,6 +38,7 @@
<properties>
<java.version>1.8</java.version>
<spring-swagger-codegen-api-client.version>0.0.1-SNAPSHOT</spring-swagger-codegen-api-client.version>
<spring.version>1.5.10.RELEASE</spring.version>
</properties>
</project>

2
testing-modules/spring-testing/README.md Normal file
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@ -0,0 +1,2 @@
### Relevant Articles:

75
testing-modules/spring-testing/pom.xml Normal file
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@ -0,0 +1,75 @@
<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>org.baeldung</groupId>
<artifactId>spring-testing</artifactId>
<version>0.1-SNAPSHOT</version>
<name>spring-testing</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath>
</parent>
<dependencies>
<!-- test scoped -->
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>java-hamcrest</artifactId>
<version>${hamcrest.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>LATEST</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>LATEST</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>LATEST</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>LATEST</version>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>LATEST</version>
</dependency>
</dependencies>
<build>
<finalName>spring-testing</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
<properties>
<!-- testing -->
<hamcrest.version>2.0.0.0</hamcrest.version>
</properties>
</project>

0
testing-modules/mockito/src/main/java/org/baeldung/mockito/repository/User.java → testing-modules/spring-testing/src/main/java/org/baeldung/mockito/repository/User.java
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0
testing-modules/mockito/src/main/java/org/baeldung/mockito/repository/UserRepository.java → testing-modules/spring-testing/src/main/java/org/baeldung/mockito/repository/UserRepository.java
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0
testing-modules/mockito/src/test/java/org/baeldung/mockito/MockAnnotationUnitTest.java → testing-modules/spring-testing/src/test/java/org/baeldung/mockito/MockAnnotationUnitTest.java
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2
testing-modules/mockito/src/test/java/org/baeldung/mockito/MockBeanAnnotationIntegrationTest.java → testing-modules/spring-testing/src/test/java/org/baeldung/mockito/MockBeanAnnotationIntegrationTest.java
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@ -20,7 +20,7 @@ public class MockBeanAnnotationIntegrationTest {
ApplicationContext context;
@Test
public void givenCountMethodMocked_WhenCountInvokedOnBeanFromContext_ThenMockValueReturned() {
public void givenCountMethodMocked_WhenCountInvoked_ThenMockValueReturned() {
Mockito.when(mockRepository.count()).thenReturn(123L);
UserRepository userRepoFromContext = context.getBean(UserRepository.class);