001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.component.jmx; 018 019 import javax.management.MBeanServer; 020 import javax.management.Notification; 021 import javax.management.ObjectName; 022 import javax.management.monitor.CounterMonitor; 023 import org.apache.camel.Consumer; 024 import org.apache.camel.Processor; 025 import org.apache.camel.Producer; 026 import org.apache.camel.impl.DefaultEndpoint; 027 import org.apache.commons.logging.Log; 028 import org.apache.commons.logging.LogFactory; 029 030 /** 031 * Creates a CounterMonitor for jmx attributes 032 * 033 * @version $Revision: 523016 $ 034 */ 035 public class JMXEndpoint extends DefaultEndpoint<JMXExchange> { 036 037 private static final Log LOG = LogFactory.getLog(JMXEndpoint.class); 038 private String name; 039 private ObjectName ourName; 040 private String observedObjectName; 041 private String attributeName; 042 private long granularityPeriod = 5000; 043 private Number threshold; 044 private Number offset; 045 private MBeanServer mbeanServer; 046 private CounterMonitor counterMonitor = new CounterMonitor(); 047 048 protected JMXEndpoint(String endpointUri, JMXComponent component) { 049 super(endpointUri, component); 050 observedObjectName = endpointUri; 051 } 052 053 /** 054 * @return a Producer 055 * @throws Exception 056 * @see org.apache.camel.Endpoint#createProducer() 057 */ 058 public Producer<JMXExchange> createProducer() throws Exception { 059 throw new RuntimeException("Not supported"); 060 } 061 062 /** 063 * @param proc 064 * @return a Consumer 065 * @throws Exception 066 * @see org.apache.camel.Endpoint#createConsumer(org.apache.camel.Processor) 067 */ 068 public Consumer<JMXExchange> createConsumer(Processor proc) throws Exception { 069 ObjectName observedName = new ObjectName(observedObjectName); 070 if (name == null) { 071 String type = observedName.getKeyProperty("type"); 072 type = type != null ? type : "UNKNOWN"; 073 name = mbeanServer.getDefaultDomain() + ":type=CounterMonitor_" + type; 074 } 075 JMXConsumer result = new JMXConsumer(this, proc); 076 ourName = new ObjectName(name); 077 counterMonitor.setNotify(true); 078 counterMonitor.addObservedObject(observedName); 079 counterMonitor.setObservedAttribute(attributeName); 080 counterMonitor.setGranularityPeriod(granularityPeriod); 081 counterMonitor.setDifferenceMode(false); 082 counterMonitor.setInitThreshold(threshold); 083 counterMonitor.setOffset(offset); 084 mbeanServer.registerMBean(counterMonitor, ourName); 085 mbeanServer.addNotificationListener(ourName, result, null, new Object()); 086 return result; 087 } 088 089 public boolean isSingleton() { 090 return true; 091 } 092 093 public JMXExchange createExchange(Notification notification) { 094 return new JMXExchange(getContext(), notification); 095 } 096 097 public JMXExchange createExchange() { 098 return new JMXExchange(getContext(), null); 099 } 100 101 public String getAttributeName() { 102 return attributeName; 103 } 104 105 public void setAttributeName(String attributeName) { 106 this.attributeName = attributeName; 107 } 108 109 public long getGranularityPeriod() { 110 return granularityPeriod; 111 } 112 113 public void setGranularityPeriod(long granularityPeriod) { 114 this.granularityPeriod = granularityPeriod; 115 } 116 117 public String getName() { 118 return name; 119 } 120 121 public void setName(String name) { 122 this.name = name; 123 } 124 125 public Number getOffset() { 126 return offset; 127 } 128 129 public void setOffset(Number offset) { 130 this.offset = offset; 131 } 132 133 public Number getThreshold() { 134 return threshold; 135 } 136 137 public void setThreshold(Number threshold) { 138 this.threshold = threshold; 139 } 140 141 public MBeanServer getMbeanServer() { 142 return mbeanServer; 143 } 144 145 public void setMbeanServer(MBeanServer mbeanServer) { 146 this.mbeanServer = mbeanServer; 147 } 148 }