Rename ApplicationStartedEvent

Rename `ApplicationStartedEvent` to `ApplicationStartingEvent` to
avoid confusion.

Fixes gh-7381

spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/RestartApplicationListener.java

@@ -19,7 +19,7 @@ package org.springframework.boot.devtools.restart;
 import org.springframework.boot.context.event.ApplicationFailedEvent;
 import org.springframework.boot.context.event.ApplicationPreparedEvent;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.context.ApplicationEvent;
 import org.springframework.context.ApplicationListener;
 import org.springframework.core.Ordered;
@@ -41,8 +41,8 @@ public class RestartApplicationListener
 
 	@Override
 	public void onApplicationEvent(ApplicationEvent event) {
-		if (event instanceof ApplicationStartedEvent) {
-			onApplicationStartedEvent((ApplicationStartedEvent) event);
+		if (event instanceof ApplicationStartingEvent) {
+			onApplicationStartingEvent((ApplicationStartingEvent) event);
 		}
 		if (event instanceof ApplicationPreparedEvent) {
 			Restarter.getInstance()
@@ -57,7 +57,7 @@ public class RestartApplicationListener
 		}
 	}
 
-	private void onApplicationStartedEvent(ApplicationStartedEvent event) {
+	private void onApplicationStartingEvent(ApplicationStartingEvent event) {
 		// It's too early to use the Spring environment but we should still allow
 		// users to disable restart using a System property.
 		String enabled = System.getProperty(ENABLED_PROPERTY);

spring-boot-devtools/src/test/java/org/springframework/boot/devtools/restart/RestartApplicationListenerTests.java

@@ -24,7 +24,7 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.context.event.ApplicationFailedEvent;
 import org.springframework.boot.context.event.ApplicationPreparedEvent;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.core.Ordered;
 import org.springframework.test.util.ReflectionTestUtils;
@@ -92,7 +92,7 @@ public class RestartApplicationListenerTests {
 		SpringApplication application = new SpringApplication();
 		ConfigurableApplicationContext context = mock(
 				ConfigurableApplicationContext.class);
-		listener.onApplicationEvent(new ApplicationStartedEvent(application, ARGS));
+		listener.onApplicationEvent(new ApplicationStartingEvent(application, ARGS));
 		assertThat(Restarter.getInstance()).isNotEqualTo(nullValue());
 		assertThat(Restarter.getInstance().isFinished()).isFalse();
 		listener.onApplicationEvent(

spring-boot/src/main/java/org/springframework/boot/SpringApplication.java

@@ -299,7 +299,7 @@ public class SpringApplication {
 		FailureAnalyzers analyzers = null;
 		configureHeadlessProperty();
 		SpringApplicationRunListeners listeners = getRunListeners(args);
-		listeners.started();
+		listeners.starting();
 		try {
 			ApplicationArguments applicationArguments = new DefaultApplicationArguments(
 					args);

spring-boot/src/main/java/org/springframework/boot/SpringApplicationRunListener.java

@@ -37,7 +37,7 @@ public interface SpringApplicationRunListener {
 	 * Called immediately when the run method has first started. Can be used for very
 	 * early initialization.
 	 */
-	void started();
+	void starting();
 
 	/**
 	 * Called once the environment has been prepared, but before the

spring-boot/src/main/java/org/springframework/boot/SpringApplicationRunListeners.java

@@ -43,9 +43,9 @@ class SpringApplicationRunListeners {
 		this.listeners = new ArrayList<SpringApplicationRunListener>(listeners);
 	}
 
-	public void started() {
+	public void starting() {
 		for (SpringApplicationRunListener listener : this.listeners) {
-			listener.started();
+			listener.starting();
 		}
 	}
 

spring-boot/src/main/java/org/springframework/boot/context/event/ApplicationStartedEvent.java

@@ -29,9 +29,11 @@ import org.springframework.core.env.Environment;
  * state too much at this early stage since it might be modified later in the lifecycle.
  *
  * @author Dave Syer
+ * @deprecated since 1.5.0 in favor of {@link ApplicationStartingEvent}
  */
+@Deprecated
 @SuppressWarnings("serial")
-public class ApplicationStartedEvent extends SpringApplicationEvent {
+public class ApplicationStartedEvent extends ApplicationStartingEvent {
 
 	/**
 	 * Create a new {@link ApplicationStartedEvent} instance.

spring-boot/src/main/java/org/springframework/boot/context/event/ApplicationStartingEvent.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2012-2016 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
+ *
+ *      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.
+ */
+
+package org.springframework.boot.context.event;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationListener;
+import org.springframework.core.env.Environment;
+
+/**
+ * Event published as early as conceivably possible as soon as a {@link SpringApplication}
+ * has been started - before the {@link Environment} or {@link ApplicationContext} is
+ * available, but after the {@link ApplicationListener}s have been registered. The source
+ * of the event is the {@link SpringApplication} itself, but beware of using its internal
+ * state too much at this early stage since it might be modified later in the lifecycle.
+ *
+ * @author Phillip Webb
+ * @author Madhura Bhave
+ * @since 1.5.0
+ */
+@SuppressWarnings("serial")
+public class ApplicationStartingEvent extends SpringApplicationEvent {
+
+	/**
+	 * Create a new {@link ApplicationStartingEvent} instance.
+	 * @param application the current application
+	 * @param args the arguments the application is running with
+	 */
+	public ApplicationStartingEvent(SpringApplication application, String[] args) {
+		super(application, args);
+	}
+
+}

spring-boot/src/main/java/org/springframework/boot/context/event/EventPublishingRunListener.java

@@ -58,7 +58,8 @@ public class EventPublishingRunListener implements SpringApplicationRunListener,
 	}
 
 	@Override
-	public void started() {
+	@SuppressWarnings("deprecation")
+	public void starting() {
 		this.initialMulticaster
 				.multicastEvent(new ApplicationStartedEvent(this.application, this.args));
 	}

spring-boot/src/main/java/org/springframework/boot/liquibase/LiquibaseServiceLocatorApplicationListener.java

@@ -21,7 +21,7 @@ import liquibase.servicelocator.ServiceLocator;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.context.ApplicationListener;
 import org.springframework.util.ClassUtils;
 
@@ -33,13 +33,13 @@ import org.springframework.util.ClassUtils;
  * @author Dave Syer
  */
 public class LiquibaseServiceLocatorApplicationListener
-		implements ApplicationListener<ApplicationStartedEvent> {
+		implements ApplicationListener<ApplicationStartingEvent> {
 
 	private static final Log logger = LogFactory
 			.getLog(LiquibaseServiceLocatorApplicationListener.class);
 
 	@Override
-	public void onApplicationEvent(ApplicationStartedEvent event) {
+	public void onApplicationEvent(ApplicationStartingEvent event) {
 		if (ClassUtils.isPresent("liquibase.servicelocator.ServiceLocator", null)) {
 			new LiquibasePresent().replaceServiceLocator();
 		}

spring-boot/src/main/java/org/springframework/boot/logging/LoggingApplicationListener.java

@@ -30,7 +30,7 @@ import org.springframework.boot.bind.RelaxedPropertyResolver;
 import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
 import org.springframework.boot.context.event.ApplicationFailedEvent;
 import org.springframework.boot.context.event.ApplicationPreparedEvent;
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationEvent;
 import org.springframework.context.ApplicationListener;
@@ -161,7 +161,7 @@ public class LoggingApplicationListener implements GenericApplicationListener {
 		LOG_LEVEL_LOGGERS.add(LogLevel.DEBUG, "org.hibernate.SQL");
 	}
 
-	private static Class<?>[] EVENT_TYPES = { ApplicationStartedEvent.class,
+	private static Class<?>[] EVENT_TYPES = { ApplicationStartingEvent.class,
 			ApplicationEnvironmentPreparedEvent.class, ApplicationPreparedEvent.class,
 			ContextClosedEvent.class };
 
@@ -201,8 +201,8 @@ public class LoggingApplicationListener implements GenericApplicationListener {
 
 	@Override
 	public void onApplicationEvent(ApplicationEvent event) {
-		if (event instanceof ApplicationStartedEvent) {
-			onApplicationStartedEvent((ApplicationStartedEvent) event);
+		if (event instanceof ApplicationStartingEvent) {
+			onApplicationStartingEvent((ApplicationStartingEvent) event);
 		}
 		else if (event instanceof ApplicationEnvironmentPreparedEvent) {
 			onApplicationEnvironmentPreparedEvent(
@@ -220,7 +220,7 @@ public class LoggingApplicationListener implements GenericApplicationListener {
 		}
 	}
 
-	private void onApplicationStartedEvent(ApplicationStartedEvent event) {
+	private void onApplicationStartingEvent(ApplicationStartingEvent event) {
 		this.loggingSystem = LoggingSystem
 				.get(event.getSpringApplication().getClassLoader());
 		this.loggingSystem.beforeInitialize();

spring-boot/src/test/java/org/springframework/boot/SpringApplicationTests.java

@@ -44,7 +44,7 @@ import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletCon
 import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
 import org.springframework.boot.context.event.ApplicationPreparedEvent;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.boot.testutil.InternalOutputCapture;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
@@ -302,6 +302,7 @@ public class SpringApplicationTests {
 	}
 
 	@Test
+	@SuppressWarnings("deprecation")
 	public void eventsOrder() {
 		SpringApplication application = new SpringApplication(ExampleConfig.class);
 		application.setWebEnvironment(false);
@@ -316,7 +317,9 @@ public class SpringApplicationTests {
 		application.addListeners(new ApplicationRunningEventListener());
 		this.context = application.run();
 		assertThat(events).hasSize(5);
-		assertThat(events.get(0)).isInstanceOf(ApplicationStartedEvent.class);
+		assertThat(events.get(0)).isInstanceOf(
+				org.springframework.boot.context.event.ApplicationStartedEvent.class);
+		assertThat(events.get(0)).isInstanceOf(ApplicationStartingEvent.class);
 		assertThat(events.get(1)).isInstanceOf(ApplicationEnvironmentPreparedEvent.class);
 		assertThat(events.get(2)).isInstanceOf(ApplicationPreparedEvent.class);
 		assertThat(events.get(3)).isInstanceOf(ContextRefreshedEvent.class);

spring-boot/src/test/java/org/springframework/boot/logging/LoggingApplicationListenerIntegrationTests.java

@@ -22,7 +22,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import org.springframework.boot.builder.SpringApplicationBuilder;
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.boot.testutil.InternalOutputCapture;
 import org.springframework.context.ApplicationListener;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -56,16 +56,18 @@ public class LoggingApplicationListenerIntegrationTests {
 	@Test
 	public void loggingPerformedDuringChildApplicationStartIsNotLost() {
 		new SpringApplicationBuilder(Config.class).web(false).child(Config.class)
-				.web(false).listeners(new ApplicationListener<ApplicationStartedEvent>() {
+				.web(false)
+				.listeners(new ApplicationListener<ApplicationStartingEvent>() {
 
 					private final Logger logger = LoggerFactory.getLogger(getClass());
 
 					@Override
-					public void onApplicationEvent(ApplicationStartedEvent event) {
-						this.logger.info("Child application started");
+					public void onApplicationEvent(ApplicationStartingEvent event) {
+						this.logger.info("Child application starting");
 					}
+
 				}).run();
-		assertThat(this.outputCapture.toString()).contains("Child application started");
+		assertThat(this.outputCapture.toString()).contains("Child application starting");
 	}
 
 	@Component

spring-boot/src/test/java/org/springframework/boot/logging/LoggingApplicationListenerTests.java

@@ -39,7 +39,7 @@ import org.slf4j.bridge.SLF4JBridgeHandler;
 import org.springframework.boot.ApplicationPid;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.context.event.ApplicationFailedEvent;
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.boot.logging.java.JavaLoggingSystem;
 import org.springframework.boot.testutil.InternalOutputCapture;
 import org.springframework.context.event.ContextClosedEvent;
@@ -86,7 +86,7 @@ public class LoggingApplicationListenerTests {
 		LogManager.getLogManager().readConfiguration(
 				JavaLoggingSystem.class.getResourceAsStream("logging.properties"));
 		this.initializer.onApplicationEvent(
-				new ApplicationStartedEvent(new SpringApplication(), NO_ARGS));
+				new ApplicationStartingEvent(new SpringApplication(), NO_ARGS));
 		new File("target/foo.log").delete();
 		new File(tmpDir() + "/spring.log").delete();
 	}
@@ -342,7 +342,7 @@ public class LoggingApplicationListenerTests {
 	public void parseArgsDoesntReplace() throws Exception {
 		this.initializer.setSpringBootLogging(LogLevel.ERROR);
 		this.initializer.setParseArgs(false);
-		this.initializer.onApplicationEvent(new ApplicationStartedEvent(
+		this.initializer.onApplicationEvent(new ApplicationStartingEvent(
 				this.springApplication, new String[] { "--debug" }));
 		this.initializer.initialize(this.context.getEnvironment(),
 				this.context.getClassLoader());
@@ -387,7 +387,7 @@ public class LoggingApplicationListenerTests {
 		System.setProperty(LoggingSystem.class.getName(),
 				TestShutdownHandlerLoggingSystem.class.getName());
 		listener.onApplicationEvent(
-				new ApplicationStartedEvent(new SpringApplication(), NO_ARGS));
+				new ApplicationStartingEvent(new SpringApplication(), NO_ARGS));
 		listener.initialize(this.context.getEnvironment(), this.context.getClassLoader());
 		assertThat(listener.shutdownHook).isNull();
 	}
@@ -400,7 +400,7 @@ public class LoggingApplicationListenerTests {
 		TestPropertySourceUtils.addInlinedPropertiesToEnvironment(this.context,
 				"logging.register_shutdown_hook=true");
 		listener.onApplicationEvent(
-				new ApplicationStartedEvent(new SpringApplication(), NO_ARGS));
+				new ApplicationStartingEvent(new SpringApplication(), NO_ARGS));
 		listener.initialize(this.context.getEnvironment(), this.context.getClassLoader());
 		assertThat(listener.shutdownHook).isNotNull();
 		listener.shutdownHook.start();
@@ -413,7 +413,7 @@ public class LoggingApplicationListenerTests {
 		System.setProperty(LoggingSystem.SYSTEM_PROPERTY,
 				TestCleanupLoggingSystem.class.getName());
 		this.initializer.onApplicationEvent(
-				new ApplicationStartedEvent(this.springApplication, new String[0]));
+				new ApplicationStartingEvent(this.springApplication, new String[0]));
 		TestCleanupLoggingSystem loggingSystem = (TestCleanupLoggingSystem) ReflectionTestUtils
 				.getField(this.initializer, "loggingSystem");
 		assertThat(loggingSystem.cleanedUp).isFalse();
@@ -426,7 +426,7 @@ public class LoggingApplicationListenerTests {
 		System.setProperty(LoggingSystem.SYSTEM_PROPERTY,
 				TestCleanupLoggingSystem.class.getName());
 		this.initializer.onApplicationEvent(
-				new ApplicationStartedEvent(this.springApplication, new String[0]));
+				new ApplicationStartingEvent(this.springApplication, new String[0]));
 		TestCleanupLoggingSystem loggingSystem = (TestCleanupLoggingSystem) ReflectionTestUtils
 				.getField(this.initializer, "loggingSystem");
 		assertThat(loggingSystem.cleanedUp).isFalse();
@@ -472,7 +472,7 @@ public class LoggingApplicationListenerTests {
 		System.setProperty(LoggingSystem.SYSTEM_PROPERTY,
 				TestCleanupLoggingSystem.class.getName());
 		this.initializer.onApplicationEvent(
-				new ApplicationStartedEvent(this.springApplication, new String[0]));
+				new ApplicationStartingEvent(this.springApplication, new String[0]));
 		TestCleanupLoggingSystem loggingSystem = (TestCleanupLoggingSystem) ReflectionTestUtils
 				.getField(this.initializer, "loggingSystem");
 		assertThat(loggingSystem.cleanedUp).isFalse();

spring-boot/src/test/java/org/springframework/boot/system/ApplicationPidFileWriterTests.java

@@ -30,7 +30,7 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.context.event.ApplicationEnvironmentPreparedEvent;
 import org.springframework.boot.context.event.ApplicationPreparedEvent;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
-import org.springframework.boot.context.event.ApplicationStartedEvent;
+import org.springframework.boot.context.event.ApplicationStartingEvent;
 import org.springframework.boot.context.event.SpringApplicationEvent;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.core.env.ConfigurableEnvironment;
@@ -129,9 +129,9 @@ public class ApplicationPidFileWriterTests {
 	public void withNoEnvironment() throws Exception {
 		File file = this.temporaryFolder.newFile();
 		ApplicationPidFileWriter listener = new ApplicationPidFileWriter(file);
-		listener.setTriggerEventType(ApplicationStartedEvent.class);
+		listener.setTriggerEventType(ApplicationStartingEvent.class);
 		listener.onApplicationEvent(
-				new ApplicationStartedEvent(new SpringApplication(), new String[] {}));
+				new ApplicationStartingEvent(new SpringApplication(), new String[] {}));
 		assertThat(FileCopyUtils.copyToString(new FileReader(file))).isNotEmpty();
 	}