| /* |
| * 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.axis2.transport.base; |
| |
| import java.lang.management.ManagementFactory; |
| |
| import javax.management.MBeanServer; |
| import javax.management.MalformedObjectNameException; |
| import javax.management.ObjectName; |
| |
| import org.apache.axis2.transport.TransportListener; |
| import org.apache.axis2.transport.TransportSender; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| /** |
| * Support class to register MBeans for transport listeners and senders. |
| * This class can be used by {@link TransportListener} and {@link TransportSender} classes |
| * to register the {@link TransportView} management bean. It takes care of registering |
| * the bean under a consistent name and makes sure that a JMX related error doesn't stop |
| * the transport from working: a failure to register the MBean will cause JMX support |
| * to be disabled. |
| */ |
| public class TransportMBeanSupport { |
| private static final Log log = LogFactory.getLog(TransportMBeanSupport.class); |
| |
| private boolean enabled = true; |
| private boolean registered; |
| private MBeanServer mbs; |
| private ObjectName mbeanName; |
| private TransportView mbeanInstance; |
| |
| private TransportMBeanSupport(String connectorName, TransportView mbeanInstance) { |
| try { |
| mbs = ManagementFactory.getPlatformMBeanServer(); |
| } catch (SecurityException ex) { |
| log.warn("Unable to get the platform MBean server; JMX support disabled", ex); |
| enabled = false; |
| return; |
| } |
| String jmxAgentName = System.getProperty("jmx.agent.name"); |
| if (jmxAgentName == null || "".equals(jmxAgentName)) { |
| jmxAgentName = "org.apache.axis2"; |
| } |
| String mbeanNameString = jmxAgentName + ":Type=Transport,ConnectorName=" + connectorName; |
| try { |
| mbeanName = ObjectName.getInstance(mbeanNameString); |
| } catch (MalformedObjectNameException ex) { |
| log.warn("Unable to create object name '" + mbeanNameString |
| + "'; JMX support disabled", ex); |
| enabled = false; |
| } |
| this.mbeanInstance = mbeanInstance; |
| } |
| |
| public TransportMBeanSupport(TransportListener listener, String name) { |
| this(name + "-listener-" + listener.hashCode(), new TransportView(listener, null)); |
| } |
| |
| public TransportMBeanSupport(TransportSender sender, String name) { |
| this(name + "-sender-" + sender.hashCode(), new TransportView(null, sender)); |
| } |
| |
| public ObjectName getMBeanName() { |
| return mbeanName; |
| } |
| |
| /** |
| * Register the {@link TransportView} MBean. |
| */ |
| public void register() { |
| if (enabled && !registered) { |
| try { |
| mbs.registerMBean(mbeanInstance, mbeanName); |
| registered = true; |
| } catch (Exception e) { |
| log.warn("Error registering a MBean with objectname ' " + mbeanName + |
| " ' for JMX management", e); |
| enabled = false; |
| } |
| } |
| } |
| |
| /** |
| * Unregister the {@link TransportView} MBean. |
| */ |
| public void unregister() { |
| if (enabled && registered) { |
| try { |
| mbs.unregisterMBean(mbeanName); |
| registered = false; |
| } catch (Exception e) { |
| log.warn("Error un-registering a MBean with objectname ' " + mbeanName + |
| " ' for JMX management", e); |
| } |
| } |
| } |
| } |