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.activemq.broker.jmx; 018 019 import javax.management.openmbean.CompositeData; 020 import javax.management.openmbean.OpenDataException; 021 import javax.jms.JMSException; 022 023 import org.apache.activemq.broker.ConnectionContext; 024 import org.apache.activemq.broker.region.Queue; 025 import org.apache.activemq.broker.region.QueueMessageReference; 026 import org.apache.activemq.command.ActiveMQDestination; 027 import org.apache.activemq.command.Message; 028 import org.apache.activemq.util.BrokerSupport; 029 030 /** 031 * Provides a JMX Management view of a Queue. 032 */ 033 public class QueueView extends DestinationView implements QueueViewMBean { 034 public QueueView(ManagedRegionBroker broker, Queue destination) { 035 super(broker, destination); 036 } 037 038 public CompositeData getMessage(String messageId) throws OpenDataException { 039 QueueMessageReference ref = ((Queue)destination).getMessage(messageId); 040 Message rc = ref.getMessage(); 041 if (rc == null) { 042 return null; 043 } 044 return OpenTypeSupport.convert(rc); 045 } 046 047 public void purge() throws Exception { 048 ((Queue)destination).purge(); 049 } 050 051 public boolean removeMessage(String messageId) throws Exception { 052 return ((Queue)destination).removeMessage(messageId); 053 } 054 055 public int removeMatchingMessages(String selector) throws Exception { 056 return ((Queue)destination).removeMatchingMessages(selector); 057 } 058 059 public int removeMatchingMessages(String selector, int maximumMessages) throws Exception { 060 return ((Queue)destination).removeMatchingMessages(selector, maximumMessages); 061 } 062 063 public boolean copyMessageTo(String messageId, String destinationName) throws Exception { 064 ConnectionContext context = BrokerSupport.getConnectionContext(broker.getContextBroker()); 065 ActiveMQDestination toDestination = ActiveMQDestination.createDestination(destinationName, ActiveMQDestination.QUEUE_TYPE); 066 return ((Queue)destination).copyMessageTo(context, messageId, toDestination); 067 } 068 069 public int copyMatchingMessagesTo(String selector, String destinationName) throws Exception { 070 ConnectionContext context = BrokerSupport.getConnectionContext(broker.getContextBroker()); 071 ActiveMQDestination toDestination = ActiveMQDestination.createDestination(destinationName, ActiveMQDestination.QUEUE_TYPE); 072 return ((Queue)destination).copyMatchingMessagesTo(context, selector, toDestination); 073 } 074 075 public int copyMatchingMessagesTo(String selector, String destinationName, int maximumMessages) throws Exception { 076 ConnectionContext context = BrokerSupport.getConnectionContext(broker.getContextBroker()); 077 ActiveMQDestination toDestination = ActiveMQDestination.createDestination(destinationName, ActiveMQDestination.QUEUE_TYPE); 078 return ((Queue)destination).copyMatchingMessagesTo(context, selector, toDestination, maximumMessages); 079 } 080 081 public boolean moveMessageTo(String messageId, String destinationName) throws Exception { 082 ConnectionContext context = BrokerSupport.getConnectionContext(broker.getContextBroker()); 083 ActiveMQDestination toDestination = ActiveMQDestination.createDestination(destinationName, ActiveMQDestination.QUEUE_TYPE); 084 return ((Queue)destination).moveMessageTo(context, messageId, toDestination); 085 } 086 087 public int moveMatchingMessagesTo(String selector, String destinationName) throws Exception { 088 ConnectionContext context = BrokerSupport.getConnectionContext(broker.getContextBroker()); 089 ActiveMQDestination toDestination = ActiveMQDestination.createDestination(destinationName, ActiveMQDestination.QUEUE_TYPE); 090 return ((Queue)destination).moveMatchingMessagesTo(context, selector, toDestination); 091 } 092 093 public int moveMatchingMessagesTo(String selector, String destinationName, int maximumMessages) throws Exception { 094 ConnectionContext context = BrokerSupport.getConnectionContext(broker.getContextBroker()); 095 ActiveMQDestination toDestination = ActiveMQDestination.createDestination(destinationName, ActiveMQDestination.QUEUE_TYPE); 096 return ((Queue)destination).moveMatchingMessagesTo(context, selector, toDestination, maximumMessages); 097 } 098 099 /** 100 * Moves a message back to its original destination 101 */ 102 public boolean retryMessage(String messageId) throws Exception { 103 Queue queue = (Queue) destination; 104 QueueMessageReference ref = queue.getMessage(messageId); 105 Message rc = ref.getMessage(); 106 if (rc != null) { 107 ActiveMQDestination originalDestination = rc.getOriginalDestination(); 108 if (originalDestination != null) { 109 ConnectionContext context = BrokerSupport.getConnectionContext(broker.getContextBroker()); 110 return queue.moveMessageTo(context, ref, originalDestination); 111 } 112 else { 113 throw new JMSException("No original destination for message: "+ messageId); 114 } 115 } 116 else { 117 throw new JMSException("Could not find message: "+ messageId); 118 } 119 } 120 121 public int cursorSize() { 122 Queue queue = (Queue) destination; 123 if (queue.getMessages() != null){ 124 return queue.getMessages().size(); 125 } 126 return 0; 127 } 128 129 130 public boolean doesCursorHaveMessagesBuffered() { 131 Queue queue = (Queue) destination; 132 if (queue.getMessages() != null){ 133 return queue.getMessages().hasMessagesBufferedToDeliver(); 134 } 135 return false; 136 137 } 138 139 140 public boolean doesCursorHaveSpace() { 141 Queue queue = (Queue) destination; 142 if (queue.getMessages() != null){ 143 return queue.getMessages().hasSpace(); 144 } 145 return false; 146 } 147 148 149 public long getCursorMemoryUsage() { 150 Queue queue = (Queue) destination; 151 if (queue.getMessages() != null && queue.getMessages().getSystemUsage() != null){ 152 return queue.getMessages().getSystemUsage().getMemoryUsage().getUsage(); 153 } 154 return 0; 155 } 156 157 public int getCursorPercentUsage() { 158 Queue queue = (Queue) destination; 159 if (queue.getMessages() != null && queue.getMessages().getSystemUsage() != null){ 160 return queue.getMessages().getSystemUsage().getMemoryUsage().getPercentUsage(); 161 } 162 return 0; 163 } 164 165 public boolean isCursorFull() { 166 Queue queue = (Queue) destination; 167 if (queue.getMessages() != null){ 168 return queue.getMessages().isFull(); 169 } 170 return false; 171 } 172 173 public boolean isCacheEnabled() { 174 Queue queue = (Queue) destination; 175 if (queue.getMessages() != null){ 176 return queue.getMessages().isCacheEnabled(); 177 } 178 return false; 179 } 180 }