Added sample code for Spring events and Spring profiles.

mgooty · mgooty · commit b5cc62b50e5b · 2014-11-09T00:19:00.000+05:30
diff --git a/spring-all/pom.xml b/spring-all/pom.xml
@@ -33,7 +33,7 @@
         </dependency>
 
         <!-- persistence -->
-
+		
         <dependency>
             <groupId>org.hibernate</groupId>
             <artifactId>hibernate-core</artifactId>
@@ -118,7 +118,6 @@
             <version>${mockito.version}</version>
             <scope>test</scope>
         </dependency>
-
     </dependencies>
 
     <build>
diff --git a/spring-all/src/main/java/org/baeldung/profiles/DatasourceConfig.java b/spring-all/src/main/java/org/baeldung/profiles/DatasourceConfig.java
@@ -0,0 +1,5 @@
+package org.baeldung.profiles;
+
+public interface DatasourceConfig {
+    public void setup();
+}
diff --git a/spring-all/src/main/java/org/baeldung/profiles/DevDatasourceConfig.java b/spring-all/src/main/java/org/baeldung/profiles/DevDatasourceConfig.java
@@ -0,0 +1,15 @@
+package org.baeldung.profiles;
+
+import org.springframework.context.annotation.Profile;
+import org.springframework.stereotype.Component;
+
+@Component
+@Profile("dev")
+public class DevDatasourceConfig implements DatasourceConfig {
+
+    @Override
+    public void setup() {
+        System.out.println("Setting up datasource for DEV environment. ");
+    }
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/profiles/ProductionDatasourceConfig.java b/spring-all/src/main/java/org/baeldung/profiles/ProductionDatasourceConfig.java
@@ -0,0 +1,15 @@
+package org.baeldung.profiles;
+
+import org.springframework.context.annotation.Profile;
+import org.springframework.stereotype.Component;
+
+@Component
+@Profile("production")
+public class ProductionDatasourceConfig implements DatasourceConfig {
+
+    @Override
+    public void setup() {
+        System.out.println("Setting up datasource for PRODUCTION environment. ");
+    }
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/profiles/SpringProfilesConfig.java b/spring-all/src/main/java/org/baeldung/profiles/SpringProfilesConfig.java
@@ -0,0 +1,10 @@
+package org.baeldung.profiles;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan("org.baeldung.profiles")
+public class SpringProfilesConfig {
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/scheduling/ScheduledAnnotationExample.java b/spring-all/src/main/java/org/baeldung/scheduling/ScheduledAnnotationExample.java
@@ -0,0 +1,52 @@
+package org.baeldung.scheduling;
+
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+@Component("scheduledAnnotationExample")
+public class ScheduledAnnotationExample {
+
+    @Scheduled(fixedDelay = 1000)
+    public void scheduleFixedDelayTask() {
+        System.out.println("Fixed delay task - " + System.currentTimeMillis() / 1000);
+    }
+
+    @Scheduled(fixedDelayString = "${fixedDelay.in.milliseconds}")
+    public void scheduleFixedDelayTaskUsingExpression() {
+        System.out.println("Fixed delay task - " + System.currentTimeMillis() / 1000);
+    }
+
+    @Scheduled(fixedDelay = 1000, initialDelay = 2000)
+    public void scheduleFixedDelayWithInitialDelayTask() {
+        System.out.println("Fixed delay task with one second initial delay - " + System.currentTimeMillis() / 1000);
+    }
+
+    @Scheduled(fixedRate = 1000)
+    public void scheduleFixedRateTask() {
+        System.out.println("Fixed rate task - " + System.currentTimeMillis() / 1000);
+    }
+
+    @Scheduled(fixedRateString = "${fixedRate.in.milliseconds}")
+    public void scheduleFixedRateTaskUsingExpression() {
+        System.out.println("Fixed rate task - " + System.currentTimeMillis() / 1000);
+    }
+
+    @Scheduled(fixedDelay = 1000, initialDelay = 100)
+    public void scheduleFixedRateWithInitialDelayTask() {
+        System.out.println("Fixed delay task with one second initial delay - " + System.currentTimeMillis() / 1000);
+    }
+
+    /**
+     * Scheduled task is executed at 10:15 AM on the 15th day of every month
+     */
+    @Scheduled(cron = "0 15 10 15 * ?")
+    public void scheduleTaskUsingCronExpression() {
+        System.out.println("schedule tasks using cron expressions - " + System.currentTimeMillis() / 1000);
+    }
+
+    @Scheduled(cron = "${cron.expression}")
+    public void scheduleTaskUsingExternalizedCronExpression() {
+        System.out.println("schedule tasks using externalized cron expressions - " + System.currentTimeMillis() / 1000);
+    }
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/scheduling/SchedulingWithXmlConfig.java b/spring-all/src/main/java/org/baeldung/scheduling/SchedulingWithXmlConfig.java
@@ -0,0 +1,16 @@
+package org.baeldung.scheduling;
+
+public class SchedulingWithXmlConfig {
+
+    public void scheduleFixedDelayTask() {
+        System.out.println("Fixed delay task - " + System.currentTimeMillis() / 1000);
+    }
+
+    public void scheduleFixedRateTask() {
+        System.out.println("Fixed rate task - " + System.currentTimeMillis() / 1000);
+    }
+
+    public void scheduleTaskUsingCronExpression() {
+        System.out.println("schedule tasks using cron expressions - " + System.currentTimeMillis() / 1000);
+    }
+}
diff --git a/spring-all/src/main/java/org/baeldung/scheduling/SpringSchedulingConfig.java b/spring-all/src/main/java/org/baeldung/scheduling/SpringSchedulingConfig.java
@@ -0,0 +1,20 @@
+package org.baeldung.scheduling;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@Configuration
+@EnableScheduling
+@ComponentScan("org.baeldung.scheduling")
+@PropertySource("classpath:springScheduled.properties")
+public class SpringSchedulingConfig {
+
+    @Bean
+    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
+        return new PropertySourcesPlaceholderConfigurer();
+    }
+}
diff --git a/spring-all/src/main/java/org/baeldung/springevents/asynchronous/AsynchronousSpringEventsConfig.java b/spring-all/src/main/java/org/baeldung/springevents/asynchronous/AsynchronousSpringEventsConfig.java
@@ -0,0 +1,20 @@
+package org.baeldung.springevents.asynchronous;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.event.ApplicationEventMulticaster;
+import org.springframework.context.event.SimpleApplicationEventMulticaster;
+import org.springframework.core.task.SimpleAsyncTaskExecutor;
+
+@Configuration
+@ComponentScan("org.baeldung.springevents.synchronous")
+public class AsynchronousSpringEventsConfig {
+
+    @Bean(name = "applicationEventMulticaster")
+    public static ApplicationEventMulticaster simpleApplicationEventMulticaster() {
+        final SimpleApplicationEventMulticaster simpleApplicationEventMulticaster = new SimpleApplicationEventMulticaster();
+        simpleApplicationEventMulticaster.setTaskExecutor(new SimpleAsyncTaskExecutor());
+        return simpleApplicationEventMulticaster;
+    }
+}
diff --git a/spring-all/src/main/java/org/baeldung/springevents/synchronous/ContextRefreshedListener.java b/spring-all/src/main/java/org/baeldung/springevents/synchronous/ContextRefreshedListener.java
@@ -0,0 +1,15 @@
+package org.baeldung.springevents.synchronous;
+
+import org.springframework.context.ApplicationListener;
+import org.springframework.context.event.ContextRefreshedEvent;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ContextRefreshedListener implements ApplicationListener<ContextRefreshedEvent> {
+
+    @Override
+    public void onApplicationEvent(final ContextRefreshedEvent cse) {
+        System.out.println("Handling context re-freshed event. ");
+    }
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/springevents/synchronous/CustomSpringEvent.java b/spring-all/src/main/java/org/baeldung/springevents/synchronous/CustomSpringEvent.java
@@ -0,0 +1,19 @@
+package org.baeldung.springevents.synchronous;
+
+import org.springframework.context.ApplicationEvent;
+
+public class CustomSpringEvent extends ApplicationEvent {
+    private static final long serialVersionUID = -8053143381029977953L;
+
+    private String message;
+
+    public CustomSpringEvent(final Object source, final String message) {
+        super(source);
+        this.message = message;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/springevents/synchronous/CustomSpringEventListener.java b/spring-all/src/main/java/org/baeldung/springevents/synchronous/CustomSpringEventListener.java
@@ -0,0 +1,14 @@
+package org.baeldung.springevents.synchronous;
+
+import org.springframework.context.ApplicationListener;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CustomSpringEventListener implements ApplicationListener<CustomSpringEvent> {
+
+    @Override
+    public void onApplicationEvent(final CustomSpringEvent event) {
+        System.out.println("Received spring custom event - " + event.getMessage());
+    }
+
+}
diff --git a/spring-all/src/main/java/org/baeldung/springevents/synchronous/CustomSpringEventPublisher.java b/spring-all/src/main/java/org/baeldung/springevents/synchronous/CustomSpringEventPublisher.java
@@ -0,0 +1,18 @@
+package org.baeldung.springevents.synchronous;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CustomSpringEventPublisher {
+
+    @Autowired
+    private ApplicationEventPublisher applicationEventPublisher;
+
+    public void publishEvent(final String message) {
+        System.out.println("Publishing custom event. ");
+        final CustomSpringEvent customSpringEvent = new CustomSpringEvent(this, message);
+        applicationEventPublisher.publishEvent(customSpringEvent);
+    }
+}
diff --git a/spring-all/src/main/java/org/baeldung/springevents/synchronous/SynchronousSpringEventsConfig.java b/spring-all/src/main/java/org/baeldung/springevents/synchronous/SynchronousSpringEventsConfig.java
@@ -0,0 +1,10 @@
+package org.baeldung.springevents.synchronous;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan("org.baeldung.springevents.synchronous")
+public class SynchronousSpringEventsConfig {
+
+}
diff --git a/spring-all/src/main/resources/springProfiles-config.xml b/spring-all/src/main/resources/springProfiles-config.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
+		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd">
+
+	<beans profile="dev">
+		<bean id="devDatasourceConfig" class="org.baeldung.profiles.DevDatasourceConfig" />
+	</beans>
+	
+	<beans profile="production">
+		<bean id="productionDatasourceConfig" class="org.baeldung.profiles.ProductionDatasourceConfig" />
+	</beans>
+</beans>
diff --git a/spring-all/src/main/resources/springScheduled-config.xml b/spring-all/src/main/resources/springScheduled-config.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:task="http://www.springframework.org/schema/task"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xsi:schemaLocation="
+		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
+		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.1.xsd
+		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd">
+
+	<context:property-placeholder location="classpath:springScheduled.properties" />
+
+	<!-- Configure the scheduler -->
+	<task:scheduler id="myScheduler" pool-size="10" />
+
+	<bean id="myscheduler"
+		class="org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler" />
+
+	<!-- Configure the fixedDealy, fixedRate or cron based schduled tasks -->
+	<bean id="schedulingWithXmlConfig" class="org.baeldung.scheduling.SchedulingWithXmlConfig" />
+
+	<task:scheduled-tasks scheduler="myScheduler">
+		<task:scheduled ref="schedulingWithXmlConfig" method="scheduleFixedDelayTask" fixed-delay="${fixedDelay.in.milliseconds}" initial-delay="1000" />			
+		<task:scheduled ref="schedulingWithXmlConfig" method="scheduleFixedRateTask" fixed-rate="${fixedRate.in.milliseconds}" />			
+		<task:scheduled ref="schedulingWithXmlConfig" method="scheduleTaskUsingCronExpression" cron="${cron.expression}" />
+	</task:scheduled-tasks>
+</beans>
diff --git a/spring-all/src/main/resources/springScheduled.properties b/spring-all/src/main/resources/springScheduled.properties
@@ -0,0 +1,3 @@
+cron.expression=0 15 10 15 * ?
+fixedRate.in.milliseconds=1000
+fixedDelay.in.milliseconds=1000
diff --git a/spring-all/src/test/java/org/baeldung/profiles/DevProfileWithAnnotationTest.java b/spring-all/src/test/java/org/baeldung/profiles/DevProfileWithAnnotationTest.java
@@ -0,0 +1,23 @@
+package org.baeldung.profiles;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ActiveProfiles("dev")
+@ContextConfiguration(classes = { SpringProfilesConfig.class }, loader = AnnotationConfigContextLoader.class)
+public class DevProfileWithAnnotationTest {
+    @Autowired
+    DatasourceConfig datasourceConfig;
+
+    @Test
+    public void testSpringProfiles() {
+        Assert.assertTrue(datasourceConfig instanceof DevDatasourceConfig);
+    }
+}
diff --git a/spring-all/src/test/java/org/baeldung/profiles/ProductionProfileWithAnnotationTest.java b/spring-all/src/test/java/org/baeldung/profiles/ProductionProfileWithAnnotationTest.java
@@ -0,0 +1,32 @@
+package org.baeldung.profiles;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.env.Environment;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ActiveProfiles("production")
+@ContextConfiguration(classes = { SpringProfilesConfig.class }, loader = AnnotationConfigContextLoader.class)
+public class ProductionProfileWithAnnotationTest {
+
+    @Autowired
+    DatasourceConfig datasourceConfig;
+
+    @Autowired
+    Environment environment;
+
+    @Test
+    public void testSpringProfiles() {
+        for (final String profileName : environment.getActiveProfiles()) {
+            System.out.println("Currently active profile - " + profileName);
+        }
+        Assert.assertEquals("production", environment.getActiveProfiles()[0]);
+        Assert.assertTrue(datasourceConfig instanceof ProductionDatasourceConfig);
+    }
+}
diff --git a/spring-all/src/test/java/org/baeldung/profiles/SpringProfilesWithXMLTest.java b/spring-all/src/test/java/org/baeldung/profiles/SpringProfilesWithXMLTest.java
diff --git a/spring-all/src/test/java/org/baeldung/scheduling/ScheduledAnnotationExampleTest.java b/spring-all/src/test/java/org/baeldung/scheduling/ScheduledAnnotationExampleTest.java
diff --git a/spring-all/src/test/java/org/baeldung/scheduling/SchedulingWithXmlConfigTest.java b/spring-all/src/test/java/org/baeldung/scheduling/SchedulingWithXmlConfigTest.java
diff --git a/spring-all/src/test/java/org/baeldung/springevents/asynchronous/AsynchronousCustomSpringEventsTest.java b/spring-all/src/test/java/org/baeldung/springevents/asynchronous/AsynchronousCustomSpringEventsTest.java
diff --git a/spring-all/src/test/java/org/baeldung/springevents/synchronous/ContextRefreshedListenerTest.java b/spring-all/src/test/java/org/baeldung/springevents/synchronous/ContextRefreshedListenerTest.java
diff --git a/spring-all/src/test/java/org/baeldung/springevents/synchronous/SynchronousCustomSpringEventsTest.java b/spring-all/src/test/java/org/baeldung/springevents/synchronous/SynchronousCustomSpringEventsTest.java
