Create cloud cli command.

Downloads and launches eureka,kafka,configserver,h2 server & hystrix dashboard.

spring-cloud-launcher/spring-cloud-launcher-cli/src/main/java/org/springframework/cloud/launcher/cli/LauncherCommand.java

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+/*
+ * Copyright 2013-2016 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.launcher.cli;
+
+import java.io.File;
+import java.lang.reflect.Constructor;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URLClassLoader;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.codehaus.groovy.control.CompilerConfiguration;
+import org.springframework.boot.cli.command.AbstractCommand;
+import org.springframework.boot.cli.command.status.ExitStatus;
+import org.springframework.boot.cli.compiler.RepositoryConfigurationFactory;
+import org.springframework.boot.cli.compiler.grape.AetherGrapeEngine;
+import org.springframework.boot.cli.compiler.grape.AetherGrapeEngineFactory;
+import org.springframework.boot.cli.compiler.grape.DependencyResolutionContext;
+import org.springframework.boot.cli.compiler.grape.RepositoryConfiguration;
+
+import groovy.lang.GroovyClassLoader;
+
+/**
+ * @author Spencer Gibb
+ */
+public class LauncherCommand extends AbstractCommand {
+
+	public static final Log log = LogFactory.getLog(LauncherCommand.class);
+
+	public LauncherCommand() {
+		super("cloud", "Start Spring Cloud Launcher");
+	}
+
+	@Override
+	public ExitStatus run(String... args) throws Exception {
+
+		try {
+			URLClassLoader classLoader = populateClassloader();
+
+			String name = "org.springframework.cloud.launcher.deployer.DeployerThread";
+			Class<?> threadClass = classLoader.loadClass(name);
+
+			Constructor<?> constructor = threadClass.getConstructor(ClassLoader.class, String[].class);
+			Thread thread = (Thread) constructor.newInstance(classLoader, args);
+			thread.start();
+			thread.join();
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+
+		return ExitStatus.OK;
+	}
+
+	URLClassLoader populateClassloader() throws MalformedURLException {
+		DependencyResolutionContext resolutionContext = new DependencyResolutionContext();
+
+		GroovyClassLoader loader = new GroovyClassLoader(Thread.currentThread().getContextClassLoader(), new CompilerConfiguration());
+
+		List<RepositoryConfiguration> repositoryConfiguration = RepositoryConfigurationFactory
+				.createDefaultRepositoryConfiguration();
+		repositoryConfiguration.add(0, new RepositoryConfiguration("local",
+				new File("repository").toURI(), true));
+
+		String[] classpaths = {"."};
+		for (String classpath : classpaths) {
+			loader.addClasspath(classpath);
+		}
+
+		System.setProperty("groovy.grape.report.downloads", "true");
+		//System.setProperty("grape.root", ".");
+
+		AetherGrapeEngine grapeEngine = AetherGrapeEngineFactory.create(loader,
+				repositoryConfiguration, resolutionContext);
+
+		//GrapeEngineInstaller.install(grapeEngine);
+
+		//TODO: get version dynamically?
+		HashMap<String, String> dependency = new HashMap<>();
+		dependency.put("group", "org.springframework.cloud.launcher");
+		dependency.put("module", "spring-cloud-launcher-deployer");
+		dependency.put("version", "1.2.0.BUILD-SNAPSHOT");
+		URI[] uris = grapeEngine.resolve(null, dependency);
+		//System.out.println("resolved URI's " + Arrays.asList(uris));
+		for (URI uri : uris) {
+			loader.addURL(uri.toURL());
+		}
+		log.debug("resolved URI's " + Arrays.asList(loader.getURLs()));
+		return loader;
+	}
+
+}

spring-cloud-launcher/spring-cloud-launcher-cli/src/test/java/org/springframework/cloud/launcher/cli/LauncherCommandTests.java

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+/*
+ * Copyright 2013-2016 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.launcher.cli;
+
+import org.junit.Ignore;
+import org.junit.Test;
+
+/**
+ * @author Spencer Gibb
+ */
+public class LauncherCommandTests {
+
+	@Test
+	@Ignore
+	public void testLoadDeployer() throws Exception {
+		//new LauncherCommand().populateClassloader();
+		new LauncherCommand().run();
+	}
+}