Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.apache.accumulo.maven.plugin; import java.io.File; import java.io.IOException; import java.util.Collections; import java.util.HashSet; import java.util.Set; import org.apache.accumulo.minicluster.MiniAccumuloCluster; import org.apache.accumulo.minicluster.impl.MiniAccumuloClusterImpl; import org.apache.accumulo.minicluster.impl.MiniAccumuloConfigImpl; import org.apache.commons.io.FileUtils; import org.apache.http.annotation.ThreadSafe; import org.apache.maven.plugin.MojoExecutionException; import org.apache.maven.plugins.annotations.LifecyclePhase; import org.apache.maven.plugins.annotations.Mojo; import org.apache.maven.plugins.annotations.Parameter; import org.apache.maven.plugins.annotations.ResolutionScope; /** * Goal which starts an instance of {@link MiniAccumuloCluster}. */ @ThreadSafe @Mojo(name = "start", defaultPhase = LifecyclePhase.PRE_INTEGRATION_TEST, requiresDependencyResolution = ResolutionScope.TEST) public class StartMojo extends AbstractAccumuloMojo { @Parameter(defaultValue = "${project.build.directory}", alias = "outputDirectory", property = "accumulo.outputDirectory", required = true) private File outputDirectory; @Parameter(defaultValue = "testInstance", alias = "instanceName", property = "accumulo.instanceName", required = true) private String instanceName; @Parameter(defaultValue = "secret", alias = "rootPassword", property = "accumulo.rootPassword", required = true) private String rootPassword; @Parameter(defaultValue = "0", alias = "zooKeeperPort", property = "accumulo.zooKeeperPort", required = true) private int zooKeeperPort; private String miniClasspath; static Set<MiniAccumuloClusterImpl> runningClusters = Collections .synchronizedSet(new HashSet<MiniAccumuloClusterImpl>()); @Override public void execute() throws MojoExecutionException { if (shouldSkip()) { return; } File subdir = new File(new File(outputDirectory, "accumulo-maven-plugin"), instanceName); try { subdir = subdir.getCanonicalFile(); if (subdir.exists()) FileUtils.forceDelete(subdir); if (!subdir.mkdirs() && !subdir.isDirectory()) throw new IOException(subdir + " cannot be created as a directory"); MiniAccumuloConfigImpl cfg = new MiniAccumuloConfigImpl(subdir, rootPassword); cfg.setInstanceName(instanceName); cfg.setZooKeeperPort(zooKeeperPort); configureMiniClasspath(cfg, miniClasspath); MiniAccumuloClusterImpl mac = new MiniAccumuloClusterImpl(cfg); getLog().info( "Starting MiniAccumuloCluster: " + mac.getInstanceName() + " in " + mac.getConfig().getDir()); mac.start(); runningClusters.add(mac); } catch (Exception e) { throw new MojoExecutionException("Unable to start " + MiniAccumuloCluster.class.getSimpleName(), e); } } public static void main(String[] args) throws MojoExecutionException { int a = 0; for (String arg : args) { if (a < 2) { // skip the first two args a++; continue; } StartMojo starter = new StartMojo(); starter.outputDirectory = new File(args[0]); String[] instArgs = arg.split(" "); starter.instanceName = instArgs[0]; starter.rootPassword = instArgs[1]; starter.miniClasspath = args[1]; starter.execute(); } } }