Update Task to BOOT 2.1.M1

Migrating to use ApplicationContextRunner or ImportAutoConfiguration with SpringApp.run, instead of SpringApplicationBuilder, because builder does not handle AutoConfiguration properly

SimpleTaskAutoConfiguration now has an annotation AutoConfigureBefore the BatchTaskAutoConfig so that it is processed prior.  THis is so that that BatchTaskAutoConfig can create the appropriate beans

SimpleTaskAutoConfiguration has new annotations so that it is AutoConfigured after BindingServiceConfiguration and after SimpleTaskAutoConfiguration.  This is so that it does not attempt to start emitting messages before stream is ready and it can create the appropriate beans after SimpleTaskAutoConfiguration has run.

Renamed SimpleTaskConfiguration to SimpleTaskAutoConfiguration.

Task version updated to  2.1.0

Added missing headers

Updated documentation.

Deprecated EnableTask

Added ability to disable Task autoconfiguration.

Removed @EnableTask from tests

Resolves #439
Resolves #440
Resolves #448
Resolves #466

spring-cloud-task-integration-tests/src/test/java/configuration/JobConfiguration.java

@@ -32,7 +32,6 @@ import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.item.support.ListItemReader;
 import org.springframework.batch.repeat.RepeatStatus;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.cloud.task.configuration.EnableTask;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -41,7 +40,6 @@ import org.springframework.context.annotation.Configuration;
  */
 @Configuration
 @EnableBatchProcessing
-@EnableTask
 public class JobConfiguration {
 	@Autowired
 	private JobBuilderFactory jobBuilderFactory;

spring-cloud-task-integration-tests/src/test/java/configuration/JobSkipConfiguration.java

@@ -27,7 +27,6 @@ import org.springframework.batch.core.step.tasklet.Tasklet;
 import org.springframework.batch.item.ItemProcessor;
 import org.springframework.batch.repeat.RepeatStatus;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.cloud.task.configuration.EnableTask;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -36,7 +35,6 @@ import org.springframework.context.annotation.Configuration;
  */
 @Configuration
 @EnableBatchProcessing
-@EnableTask
 public class JobSkipConfiguration {
 	@Autowired
 	private JobBuilderFactory jobBuilderFactory;

spring-cloud-task-integration-tests/src/test/java/org/springframework/cloud/task/executionid/TaskStartApplication.java

@@ -19,14 +19,12 @@ package org.springframework.cloud.task.executionid;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.cloud.task.configuration.EnableTask;
 import org.springframework.context.annotation.Bean;
 
 /**
  * @author Glenn Renfro
  */
 @SpringBootApplication
-@EnableTask
 public class TaskStartApplication {
 
 	public static void main(String[] args) {

spring-cloud-task-integration-tests/src/test/java/org/springframework/cloud/task/listener/TaskEventTests.java

@@ -22,18 +22,22 @@ import org.junit.ClassRule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
-import org.springframework.boot.builder.SpringApplicationBuilder;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import org.springframework.cloud.stream.annotation.EnableBinding;
 import org.springframework.cloud.stream.annotation.StreamListener;
 import org.springframework.cloud.stream.binder.rabbit.config.RabbitServiceAutoConfiguration;
 import org.springframework.cloud.stream.binder.test.junit.rabbit.RabbitTestSupport;
+import org.springframework.cloud.stream.config.BindingServiceConfiguration;
 import org.springframework.cloud.stream.messaging.Sink;
-import org.springframework.cloud.task.configuration.EnableTask;
+import org.springframework.cloud.task.configuration.SimpleTaskAutoConfiguration;
+import org.springframework.cloud.task.configuration.SingleTaskConfiguration;
 import org.springframework.cloud.task.repository.TaskExecution;
-import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.test.context.junit4.SpringRunner;
@@ -59,21 +63,26 @@ public class TaskEventTests {
 
 	@Test
 	public void testTaskEventListener() throws Exception {
-		ConfigurableApplicationContext applicationContext = new SpringApplicationBuilder().sources(new Class[] {TaskEventsConfiguration.class,
-				TaskEventAutoConfiguration.class,
-				PropertyPlaceholderAutoConfiguration.class,
-				RabbitServiceAutoConfiguration.class}).build().run("--spring.cloud.task.closecontext_enabled=false",
-				"--spring.cloud.task.name=" + TASK_NAME,
-				"--spring.main.web-environment=false",
-				"--spring.cloud.stream.defaultBinder=rabbit",
-				"--spring.cloud.stream.bindings.task-events.destination=test");
-		assertNotNull(applicationContext.getBean("taskEventListener"));
-		assertNotNull(applicationContext.getBean(TaskEventAutoConfiguration.TaskEventChannels.class));
+		ApplicationContextRunner applicationContextRunner = new ApplicationContextRunner()
+				.withConfiguration(AutoConfigurations.of(TaskEventsConfiguration.class,
+						TaskEventAutoConfiguration.class,
+						PropertyPlaceholderAutoConfiguration.class,
+						RabbitServiceAutoConfiguration.class,
+						SimpleTaskAutoConfiguration.class,
+						BindingServiceConfiguration.class))
+				.withPropertyValues("--spring.cloud.task.closecontext_enabled=false",
+						"--spring.cloud.task.name=" + TASK_NAME,
+						"--spring.main.web-environment=false",
+						"--spring.cloud.stream.defaultBinder=rabbit",
+						"--spring.cloud.stream.bindings.task-events.destination=test");
+		applicationContextRunner.run((context) -> {
+			assertNotNull(context.getBean("taskEventListener"));
+			assertNotNull(context.getBean(TaskEventAutoConfiguration.TaskEventChannels.class));
+		});
 		assertTrue(latch.await(1, TimeUnit.SECONDS));
 	}
 
 	@Configuration
-	@EnableTask
 	public static class TaskEventsConfiguration {
 	}
 
@@ -87,5 +96,15 @@ public class TaskEventTests {
 			assertTrue(String.format("Task name should be '%s'", TASK_NAME), execution.getTaskName().equals(TASK_NAME));
 			latch.countDown();
 		}
+
+		@Bean
+		public CommandLineRunner commandLineRunner(){
+			return new CommandLineRunner() {
+				@Override
+				public void run(String... args) throws Exception {
+					System.out.println("Hello World");
+				}
+			};
+		}
 	}
 }