| /* |
| * 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.uima.ducc.ws.helper; |
| |
| import java.io.IOException; |
| |
| import javax.management.MBeanServerConnection; |
| import javax.management.ObjectName; |
| import javax.management.remote.JMXConnector; |
| import javax.management.remote.JMXConnectorFactory; |
| import javax.management.remote.JMXServiceURL; |
| |
| import org.apache.uima.ducc.common.utils.DuccLogger; |
| import org.apache.uima.ducc.common.utils.DuccLoggerComponents; |
| import org.apache.uima.ducc.common.utils.id.DuccId; |
| |
| public abstract class JmxHelper { |
| |
| private static DuccLogger logger = DuccLoggerComponents.getWsLogger(JmxHelper.class.getName()); |
| private static DuccId jobid = null; |
| |
| private String jmxHost = "localhost"; |
| private int jmxPort = -1; |
| |
| private JMXServiceURL url; |
| private JMXConnector jmxc; |
| private MBeanServerConnection mbsc; |
| |
| protected void setJmxHost(String value) { |
| jmxHost = value; |
| } |
| |
| public String getJmxHost() { |
| return jmxHost; |
| } |
| |
| protected void setJmxPort(int value) { |
| jmxPort = value; |
| } |
| |
| public int getJmxPort() { |
| return jmxPort; |
| } |
| |
| public String getJmxUrl() { |
| return "service:jmx:rmi:///jndi/rmi://"+getJmxHost()+":"+getJmxPort()+"/jmxrmi"; |
| } |
| |
| public MBeanServerConnection getMBSC() { |
| return mbsc; |
| } |
| |
| protected void jmxConnect() throws IOException { |
| url = new JMXServiceURL(getJmxUrl()); |
| jmxc = JMXConnectorFactory.connect(url, null); |
| mbsc = jmxc.getMBeanServerConnection(); |
| } |
| |
| protected String getJmxData() throws Exception { |
| Object o = null; |
| MBeanServerConnection mbsc = null; |
| try { |
| mbsc = getMBSC(); |
| o = mbsc.getAttribute(new ObjectName("java.lang:type=Runtime"), "Name"); |
| } |
| catch(Exception e) { |
| reconnect(); |
| mbsc = getMBSC(); |
| o = mbsc.getAttribute(new ObjectName("java.lang:type=Runtime"), "Name"); |
| } |
| String data = (String) o; |
| return data; |
| } |
| |
| public Long getPID() { |
| String location = "getPID"; |
| Long retVal = new Long(0); |
| try { |
| String data = getJmxData(); |
| String[] address = data.split("@"); |
| Long pid = Long.parseLong(address[0]); |
| retVal = pid; |
| } |
| catch(Exception e) { |
| logger.error(location, jobid, e); |
| } |
| return retVal; |
| } |
| |
| protected abstract void reconnect(); |
| } |