Java tutorial
/** * The MIT License * Copyright (c) 2010 JmxTrans team * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.googlecode.jmxtrans.connections; import org.apache.commons.pool.BaseKeyedPoolableObjectFactory; import javax.management.remote.JMXConnector; import javax.management.remote.JMXConnectorFactory; import java.io.IOException; /** * Allows us to pool connections to remote jmx servers. */ public class JmxConnectionFactory extends BaseKeyedPoolableObjectFactory<JMXConnectionParams, JMXConnector> { /** * Creates the connection. */ @Override public JMXConnector makeObject(JMXConnectionParams params) throws Exception { return JMXConnectorFactory.connect(params.getUrl(), params.getEnvironment()); } /** * Closes the connection. */ @Override public void destroyObject(JMXConnectionParams params, JMXConnector connector) throws Exception { connector.close(); } /** * Validates that the connection is good. */ @Override public boolean validateObject(JMXConnectionParams params, JMXConnector connector) { boolean result = false; try { connector.getConnectionId(); connector.getMBeanServerConnection().getMBeanCount(); result = true; } catch (IOException ex) { // ignored } return result; } }