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.rya.mongodb; import java.io.IOException; import java.net.ServerSocket; import java.net.UnknownHostException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.mongodb.MongoClient; import com.mongodb.MongoException; import com.mongodb.ServerAddress; import de.flapdoodle.embed.mongo.Command; import de.flapdoodle.embed.mongo.MongodExecutable; import de.flapdoodle.embed.mongo.MongodProcess; import de.flapdoodle.embed.mongo.MongodStarter; import de.flapdoodle.embed.mongo.config.IMongodConfig; import de.flapdoodle.embed.mongo.config.MongodConfigBuilder; import de.flapdoodle.embed.mongo.config.Net; import de.flapdoodle.embed.mongo.config.RuntimeConfigBuilder; import de.flapdoodle.embed.mongo.distribution.IFeatureAwareVersion; import de.flapdoodle.embed.mongo.distribution.Version; public class EmbeddedMongoFactory { private static Logger logger = LoggerFactory.getLogger(EmbeddedMongoFactory.class.getName()); public static EmbeddedMongoFactory newFactory() throws IOException { return EmbeddedMongoFactory.with(Version.Main.PRODUCTION); } public static EmbeddedMongoFactory with(final IFeatureAwareVersion version) throws IOException { return new EmbeddedMongoFactory(version); } private final MongodExecutable mongodExecutable; private final MongodProcess mongodProcess; /** * Create the testing utility using the specified version of MongoDB. * * @param version * version of MongoDB. */ private EmbeddedMongoFactory(final IFeatureAwareVersion version) throws IOException { final MongodStarter runtime = MongodStarter .getInstance(new RuntimeConfigBuilder().defaultsWithLogger(Command.MongoD, logger).build()); mongodExecutable = runtime.prepare(newMongodConfig(version)); mongodProcess = mongodExecutable.start(); } private IMongodConfig newMongodConfig(final IFeatureAwareVersion version) throws UnknownHostException, IOException { Net net = new Net(findRandomOpenPortOnAllLocalInterfaces(), false); return new MongodConfigBuilder().version(version).net(net).build(); } private int findRandomOpenPortOnAllLocalInterfaces() throws IOException { try (ServerSocket socket = new ServerSocket(0);) { return socket.getLocalPort(); } } /** * Creates a new Mongo connection. * * @throws MongoException * @throws UnknownHostException */ public MongoClient newMongoClient() throws UnknownHostException, MongoException { return new MongoClient(new ServerAddress(mongodProcess.getConfig().net().getServerAddress(), mongodProcess.getConfig().net().getPort())); } /** * Cleans up the resources created by the utility. */ public void shutdown() { mongodProcess.stop(); mongodExecutable.stop(); } }