SCT-12 Creates the SCSt sink that can launch tasks.

resolves  spring-cloud/spring-cloud-task#12

spring-cloud-task-stream/src/test/java/org/springframework/cloud/task/launcher/TaskLauncherSinkTests.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright 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.cloud.task.launcher;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.SpringApplicationConfiguration;
+import org.springframework.cloud.deployer.spi.task.LaunchState;
+import org.springframework.cloud.stream.annotation.Bindings;
+import org.springframework.cloud.stream.messaging.Sink;
+import org.springframework.cloud.task.launcher.configuration.TaskConfiguration;
+import org.springframework.cloud.task.launcher.util.TaskLauncherSinkApplication;
+import org.springframework.context.ApplicationContext;
+import org.springframework.messaging.support.GenericMessage;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = {TaskLauncherSinkApplication.class, TaskConfiguration.class} )
+public class TaskLauncherSinkTests {
+
+	private final static String DEFAULT_STATUS = "test_status";
+
+	@Autowired
+	private ApplicationContext context;
+
+	@Autowired
+	@Bindings(TaskLauncherSink.class)
+	private Sink sink;
+
+
+	@Test
+	public void testSuccess() {
+		TaskConfiguration.TestTaskLauncher testTaskLauncher =
+				 context.getBean(TaskConfiguration.TestTaskLauncher.class);
+
+		Map<String, String> properties = new HashMap<>();
+		properties.put("server.port", "0");
+		TaskLaunchRequest request = new TaskLaunchRequest("timestamp-task",
+				"org.springframework.cloud.task.module","1.0.0.BUILD-SNAPSHOT", "jar",
+				"exec", properties);
+		GenericMessage<TaskLaunchRequest> message = new GenericMessage<>(request);
+		this.sink.input().send(message);
+		assertEquals(LaunchState.complete, testTaskLauncher.status(DEFAULT_STATUS).getState());
+	}
+
+	@Test
+	public void testNoRun() {
+		TaskConfiguration.TestTaskLauncher testTaskLauncher =
+				 context.getBean(TaskConfiguration.TestTaskLauncher.class);
+
+		assertEquals(LaunchState.unknown, testTaskLauncher.status(DEFAULT_STATUS).getState());
+	}
+
+	@Test(expected = IllegalArgumentException.class)
+	public void testNoTaskLauncher() {
+		Map<String, String> properties = new HashMap<>();
+		properties.put("server.port", "0");
+		TaskLauncherSink sink = new TaskLauncherSink();
+		sink.taskLauncherSink(new TaskLaunchRequest("timestamp-task",
+				"org.springframework.cloud.task.module","1.0.0.BUILD-SNAPSHOT", "jar",
+				"exec", properties));
+	}
+}

spring-cloud-task-stream/src/test/java/org/springframework/cloud/task/launcher/configuration/TaskConfiguration.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 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.cloud.task.launcher.configuration;
+
+import org.springframework.cloud.deployer.spi.core.AppDeploymentRequest;
+import org.springframework.cloud.deployer.spi.task.LaunchState;
+import org.springframework.cloud.deployer.spi.task.TaskLauncher;
+import org.springframework.cloud.deployer.spi.task.TaskStatus;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * @author Glenn Renfro
+ */
+
+@Configuration
+public class TaskConfiguration {
+
+	@Bean
+	public TaskLauncher taskLauncher(){
+		return new TestTaskLauncher();
+	}
+
+	public static class TestTaskLauncher implements TaskLauncher{
+
+		public static final String LAUNCH_ID = "TEST_LAUNCH_ID";
+
+		private LaunchState state = LaunchState.unknown;
+
+		@Override
+		public String launch(AppDeploymentRequest request) {
+			state = LaunchState.complete;
+			return null;
+		}
+
+		@Override
+		public void cancel(String id) {
+
+		}
+
+		@Override
+		public TaskStatus status(String id) {
+			return new TaskStatus(LAUNCH_ID, state, null);
+		}
+	}
+}

spring-cloud-task-stream/src/test/java/org/springframework/cloud/task/launcher/util/TaskLauncherSinkApplication.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 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.cloud.task.launcher.util;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.task.launcher.annotation.EnableTaskLauncher;
+
+/**
+ * @author Glenn Renfro
+ */
+@SpringBootApplication
+@EnableTaskLauncher
+public class TaskLauncherSinkApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(TaskLauncherSinkApplication.class, args);
+	}
+}