org.wso2.carbon.integration.test.client.JMXAnalyzerClient.java Source code

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Here is the source code for org.wso2.carbon.integration.test.client.JMXAnalyzerClient.java

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/*
 * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. 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.wso2.carbon.integration.test.client;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import javax.management.*;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
import java.util.HashMap;
import java.util.Map;

public class JMXAnalyzerClient {

    public static int getThreadCount(String host, String port) throws IOException {
        String username = "admin";
        String password = "admin";
        int threadCount = 0;
        String threadName = "JMSThreads";
        JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://" + host + ":" + port + "/jmxrmi");
        Map<String, String[]> env = new HashMap<String, String[]>();
        ThreadInfo threadIDInfo;

        String[] credentials = { username, password };
        env.put(JMXConnector.CREDENTIALS, credentials);
        JMXConnector jmxConnector = JMXConnectorFactory.connect(url, env);
        MBeanServerConnection mbeanServerConnection = jmxConnector.getMBeanServerConnection();
        final ThreadMXBean remoteThread = ManagementFactory.newPlatformMXBeanProxy(mbeanServerConnection,
                ManagementFactory.THREAD_MXBEAN_NAME, ThreadMXBean.class);
        long[] allThreadIDsArray = remoteThread.getAllThreadIds();

        //get jms thread count
        for (long threadID : allThreadIDsArray) {
            threadIDInfo = remoteThread.getThreadInfo(threadID);
            if (threadIDInfo != null && threadIDInfo.getThreadName() != null
                    && threadIDInfo.getThreadName().startsWith(threadName)) {
                threadCount++;
            }
        }
        //close the connection
        jmxConnector.close();
        return threadCount;
    }
}