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This commit is contained in:
Nandan Bn
2020-02-25 01:08:13 +05:30
parent c4ba025b17
commit 47baf5ea91
9 changed files with 148 additions and 81 deletions
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117
spring-boot/spring-events/.mvn/wrapper/MavenWrapperDownloader.java vendored Normal file
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@@ -0,0 +1,117 @@
/*
* Copyright 2007-present the original author or authors.
*
* Licensed 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
*
* https://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.
*/
import java.net.*;
import java.io.*;
import java.nio.channels.*;
import java.util.Properties;
public class MavenWrapperDownloader {
private static final String WRAPPER_VERSION = "0.5.6";
/**
* Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
*/
private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+ WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
/**
* Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
* use instead of the default one.
*/
private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
".mvn/wrapper/maven-wrapper.properties";
/**
* Path where the maven-wrapper.jar will be saved to.
*/
private static final String MAVEN_WRAPPER_JAR_PATH =
".mvn/wrapper/maven-wrapper.jar";
/**
* Name of the property which should be used to override the default download url for the wrapper.
*/
private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
public static void main(String args[]) {
System.out.println("- Downloader started");
File baseDirectory = new File(args[0]);
System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
// If the maven-wrapper.properties exists, read it and check if it contains a custom
// wrapperUrl parameter.
File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
String url = DEFAULT_DOWNLOAD_URL;
if(mavenWrapperPropertyFile.exists()) {
FileInputStream mavenWrapperPropertyFileInputStream = null;
try {
mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
Properties mavenWrapperProperties = new Properties();
mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
} catch (IOException e) {
System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
} finally {
try {
if(mavenWrapperPropertyFileInputStream != null) {
mavenWrapperPropertyFileInputStream.close();
}
} catch (IOException e) {
// Ignore ...
}
}
}
System.out.println("- Downloading from: " + url);
File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
if(!outputFile.getParentFile().exists()) {
if(!outputFile.getParentFile().mkdirs()) {
System.out.println(
"- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
}
}
System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
try {
downloadFileFromURL(url, outputFile);
System.out.println("Done");
System.exit(0);
} catch (Throwable e) {
System.out.println("- Error downloading");
e.printStackTrace();
System.exit(1);
}
}
private static void downloadFileFromURL(String urlString, File destination) throws Exception {
if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
String username = System.getenv("MVNW_USERNAME");
char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
Authenticator.setDefault(new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
}
URL website = new URL(urlString);
ReadableByteChannel rbc;
rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream(destination);
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
fos.close();
rbc.close();
}
}

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spring-boot/spring-events/.mvn/wrapper/maven-wrapper.jar vendored Normal file
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spring-boot/spring-events/.mvn/wrapper/maven-wrapper.properties vendored Normal file
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@@ -0,0 +1,2 @@
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

10
spring-boot/spring-events/pom.xml
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@@ -25,6 +25,12 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
@@ -51,8 +57,8 @@
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
</dependency>
</dependency>
</dependencies>
<build>

4
spring-boot/spring-events/src/main/java/io/reflectoring/eventsdemo/AsyncListener.java
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@@ -5,11 +5,11 @@ import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Component;
@Component
public class AsyncListener {
class AsyncListener {
@Async
@EventListener
public void handleAsyncEvent(String event) {
void handleAsyncEvent(String event) {
System.out.println(String.format("Async event recevied: %s", event));
}

1
spring-boot/spring-events/src/main/java/io/reflectoring/eventsdemo/ReturnedEvent.java
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@@ -1,5 +1,6 @@
package io.reflectoring.eventsdemo;
// Empty class to showcase spring creates an event for non-void returned events
public class ReturnedEvent {
}

14
spring-boot/spring-events/src/main/java/io/reflectoring/eventsdemo/SpringBuiltInEventsListener.java
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@@ -7,15 +7,15 @@ import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationListener;
class SpringBuiltInEventsListener implements ApplicationListener<SpringApplicationEvent>, ApplicationContextAware{
class SpringBuiltInEventsListener implements ApplicationListener<SpringApplicationEvent>, ApplicationContextAware {
ApplicationContext applicationContext;
@Override
public void onApplicationEvent(SpringApplicationEvent event) {
System.out.println("SpringApplicationEvent Received - " + event);
// Initializing publisher for custom event
// Initializing publisher for custom event
this.initPublisher(event);
}
@@ -23,9 +23,9 @@ class SpringBuiltInEventsListener implements ApplicationListener<SpringApplicati
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
private void initPublisher(SpringApplicationEvent event) {
if(event instanceof ApplicationReadyEvent) {
if (event instanceof ApplicationReadyEvent) {
this.applicationContext.getBean(Publisher.class).publishEvent();
}
}

22
spring-boot/spring-events/src/main/java/io/reflectoring/eventsdemo/UserRemovedListener.java
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@@ -6,29 +6,29 @@ import org.springframework.transaction.event.TransactionPhase;
import org.springframework.transaction.event.TransactionalEventListener;
@Component
public class UserRemovedListener {
class UserRemovedListener {
@EventListener
public ReturnedEvent handleUserRemovedEvent(UserRemovedEvent event) {
ReturnedEvent handleUserRemovedEvent(UserRemovedEvent event) {
System.out.println(String.format("User removed (@EventListerner): %s", event.getName()));
// Spring will send ReturnedEvent as a new event
return new ReturnedEvent();
}
// Listener to receive the event returned by Spring
@EventListener
public void handleReturnedEvent(ReturnedEvent event) {
void handleReturnedEvent(ReturnedEvent event) {
System.out.println("ReturnedEvent received.");
}
@EventListener(condition = "#event.name eq 'reflectoring'")
public void handleConditionalListener(UserRemovedEvent event) {
void handleConditionalListener(UserRemovedEvent event) {
System.out.println(String.format("User removed (Conditional): %s", event.getName()));
}
@TransactionalEventListener(condition = "#event.name eq 'reflectoring'", phase=TransactionPhase.AFTER_COMPLETION)
public void handleAfterUserRemoved(UserRemovedEvent event) {
@TransactionalEventListener(condition = "#event.name eq 'reflectoring'", phase = TransactionPhase.AFTER_COMPLETION)
void handleAfterUserRemoved(UserRemovedEvent event) {
System.out.println(String.format("User removed (@TransactionalEventListener): %s", event.getName()));
}
}

59
spring-boot/spring-events/src/test/java/com/lucario/eventsdemo/EventsDemoApplicationTests.java
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@@ -1,59 +0,0 @@
package com.lucario.eventsdemo;
import static org.hamcrest.CoreMatchers.instanceOf;
import java.util.List;
import org.junit.Before;
import org.junit.jupiter.api.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.mock.mockito.SpyBean;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import io.reflectoring.eventsdemo.UserCreatedEvent;
import io.reflectoring.eventsdemo.UserListener;
import junit.framework.Assert;
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest
class EventsDemoApplicationTests {
@Mock
private ApplicationEventPublisher applicationEventPublisher;
@SpyBean
UserListener userCreatedListener;
@Captor
protected ArgumentCaptor<UserCreatedEvent> publishEventCaptor;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
}
@Test
void contextLoads() {
System.out.println("Gere");
verifyPublishedEvents(new UserCreatedEvent("Lucario"));
}
protected void verifyPublishedEvents(Object... events) {
Mockito.verify(applicationEventPublisher, Mockito.times(events.length)).publishEvent(publishEventCaptor.capture());
List<UserCreatedEvent> capturedEvents = publishEventCaptor.getAllValues();
for (int i = 0; i < capturedEvents.size(); i++) {
Assert.assertEquals(capturedEvents.get(i), instanceOf(events[i].getClass()));
System.out.println(events[i].getClass().getName());
Assert.assertEquals(capturedEvents.get(i), events[i]);
}
}
}