Java tutorial
/* * Copyright 2010-2011 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 com.ttpod.rest.web.spring; import com.mongodb.Mongo; import com.mongodb.MongoOptions; import com.mongodb.ReadPreference; import com.mongodb.ServerAddress; import org.springframework.beans.factory.FactoryBean; import org.springframework.beans.factory.InitializingBean; import java.util.ArrayList; import java.util.List; /** * A factory bean for construction of a MongoOptions instance * * @author Graeme Rocher * @Author Mark Pollack */ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean { private Mongo mongo; private String urls; public void setAutoSlaveOk(boolean autoSlaveOk) { this.autoSlaveOk = autoSlaveOk; } private boolean autoSlaveOk = true; public void setOptions(MongoOptions options) { this.options = options; } public void setUrls(String urls) { this.urls = urls; } private MongoOptions options; @Override public Mongo getObject() throws Exception { return mongo; } @Override public Class<?> getObjectType() { return Mongo.class; } @Override public boolean isSingleton() { return true; } @Override public void afterPropertiesSet() throws Exception { String[] host_ports = urls.split(","); List<ServerAddress> addList = new ArrayList<ServerAddress>(host_ports.length); for (String host_port : host_ports) { String[] kv = host_port.split(":"); addList.add(new ServerAddress(kv[0], Integer.parseInt(kv[1]))); } if (autoSlaveOk && addList.size() > 1) { options.readPreference = ReadPreference.secondaryPreferred(); } this.mongo = new Mongo(addList, options); } }