| /* |
| * |
| * 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.qpid.extras.exchanges.diagnostic; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| import javax.management.JMException; |
| import javax.management.openmbean.OpenDataException; |
| import javax.management.openmbean.TabularData; |
| |
| import org.apache.qpid.AMQException; |
| import org.apache.qpid.framing.AMQShortString; |
| import org.apache.qpid.framing.BasicContentHeaderProperties; |
| import org.apache.qpid.framing.FieldTable; |
| import org.apache.qpid.server.exchange.AbstractExchange; |
| import org.apache.qpid.server.management.MBeanConstructor; |
| import org.apache.qpid.server.management.MBeanDescription; |
| import org.apache.qpid.server.queue.IncomingMessage; |
| import org.apache.qpid.server.queue.AMQQueue; |
| |
| import org.apache.qpid.junit.extensions.util.SizeOf; |
| |
| /** |
| * |
| * This is a special diagnostic exchange type which doesn't actually do anything |
| * with messages. When it receives a message, it writes information about the |
| * current memory usage to the "memory" property of the message and places it on the |
| * diagnosticqueue for retrieval |
| * |
| * @author Aidan Skinner |
| * |
| */ |
| |
| public class DiagnosticExchange extends AbstractExchange |
| { |
| |
| public static final AMQShortString DIAGNOSTIC_EXCHANGE_CLASS = new AMQShortString("x-diagnostic"); |
| public static final AMQShortString DIAGNOSTIC_EXCHANGE_NAME = new AMQShortString("diagnostic"); |
| |
| /** |
| * the logger. |
| */ |
| //private static final Logger _logger = Logger.getLogger(DiagnosticExchange.class); |
| |
| /** |
| * MBean class implementing the management interfaces. |
| */ |
| @MBeanDescription("Management Bean for Diagnostic Exchange") |
| private final class DiagnosticExchangeMBean extends ExchangeMBean |
| { |
| |
| /** |
| * Usual constructor. |
| * |
| * @throws JMException |
| */ |
| @MBeanConstructor("Creates an MBean for AMQ Diagnostic exchange") |
| public DiagnosticExchangeMBean() throws JMException |
| { |
| super(); |
| _exchangeType = "diagnostic"; |
| init(); |
| } |
| |
| /** |
| * Returns nothing, there can be no tabular data for this... |
| * |
| * @throws OpenDataException |
| * @returns null |
| * @todo ... or can there? Could this actually return all the |
| * information in one easy to read table? |
| */ |
| public TabularData bindings() throws OpenDataException |
| { |
| return null; |
| } |
| |
| /** |
| * This exchange type doesn't support queues, so this method does |
| * nothing. |
| * |
| * @param queueName |
| * the queue you'll fail to create |
| * @param binding |
| * the binding you'll fail to create |
| * @throws JMException |
| * an exception that will never be thrown |
| */ |
| public void createNewBinding(String queueName, String binding) throws JMException |
| { |
| // No Op |
| } |
| |
| } // End of MBean class |
| |
| /** |
| * Creates a new MBean instance |
| * |
| * @return the newly created MBean |
| * @throws AMQException |
| * if something goes wrong |
| */ |
| protected ExchangeMBean createMBean() throws AMQException |
| { |
| try |
| { |
| return new DiagnosticExchange.DiagnosticExchangeMBean(); |
| } |
| catch (JMException ex) |
| { |
| // _logger.error("Exception occured in creating the direct exchange mbean", ex); |
| throw new AMQException(null, "Exception occured in creating the direct exchange mbean", ex); |
| } |
| } |
| |
| public AMQShortString getType() |
| { |
| return DIAGNOSTIC_EXCHANGE_CLASS; |
| } |
| |
| /** |
| * Does nothing. |
| * |
| * @param routingKey |
| * pointless |
| * @param queue |
| * pointless |
| * @param args |
| * pointless |
| * @throws AMQException |
| * never |
| */ |
| public void registerQueue(AMQShortString routingKey, AMQQueue queue, FieldTable args) throws AMQException |
| { |
| // No op |
| } |
| |
| /** |
| * Does nothing. |
| * |
| * @param routingKey |
| * pointless |
| * @param queue |
| * pointless |
| * @param args |
| * pointless |
| * @throws AMQException |
| * never |
| */ |
| public void deregisterQueue(AMQShortString routingKey, AMQQueue queue, FieldTable args) throws AMQException |
| { |
| // No op |
| } |
| |
| public boolean isBound(AMQShortString routingKey, AMQQueue queue) |
| { |
| return false; |
| } |
| |
| public boolean isBound(AMQShortString routingKey) |
| { |
| return false; |
| } |
| |
| public boolean isBound(AMQQueue queue) |
| { |
| return false; |
| } |
| |
| public boolean hasBindings() |
| { |
| return false; |
| } |
| |
| public void route(IncomingMessage payload) throws AMQException |
| { |
| |
| Long value = new Long(SizeOf.getUsedMemory()); |
| AMQShortString key = new AMQShortString("memory"); |
| |
| FieldTable headers = ((BasicContentHeaderProperties)payload.getContentHeaderBody().properties).getHeaders(); |
| headers.put(key, value); |
| ((BasicContentHeaderProperties)payload.getContentHeaderBody().properties).setHeaders(headers); |
| AMQQueue q = getQueueRegistry().getQueue(new AMQShortString("diagnosticqueue")); |
| |
| ArrayList<AMQQueue> queues = new ArrayList<AMQQueue>(); |
| queues.add(q); |
| payload.enqueue(queues); |
| |
| } |
| |
| |
| public boolean isBound(AMQShortString routingKey, FieldTable arguments, |
| AMQQueue queue) { |
| // TODO Auto-generated method stub |
| return false; |
| } |
| } |