diff options
Diffstat (limited to 'java/broker/src/main/java/org/apache/qpid/server/exchange/DestNameExchange.java')
| -rw-r--r-- | java/broker/src/main/java/org/apache/qpid/server/exchange/DestNameExchange.java | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/java/broker/src/main/java/org/apache/qpid/server/exchange/DestNameExchange.java b/java/broker/src/main/java/org/apache/qpid/server/exchange/DestNameExchange.java new file mode 100644 index 0000000000..38ceebe235 --- /dev/null +++ b/java/broker/src/main/java/org/apache/qpid/server/exchange/DestNameExchange.java @@ -0,0 +1,219 @@ +/* + * + * Copyright (c) 2006 The Apache Software Foundation + * + * Licensed 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.server.exchange; + +import org.apache.log4j.Logger; +import org.apache.qpid.AMQException; +import org.apache.qpid.framing.BasicPublishBody; +import org.apache.qpid.framing.FieldTable; +import org.apache.qpid.server.management.MBeanDescription; +import org.apache.qpid.server.management.MBeanConstructor; +import org.apache.qpid.server.queue.AMQMessage; +import org.apache.qpid.server.queue.AMQQueue; +import org.apache.qpid.server.registry.ApplicationRegistry; + +import javax.management.JMException; +import javax.management.MBeanException; +import javax.management.NotCompliantMBeanException; +import javax.management.openmbean.*; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; + +public class DestNameExchange extends AbstractExchange +{ + private static final Logger _logger = Logger.getLogger(DestNameExchange.class); + + /** + * Maps from queue name to queue instances + */ + private final Index _index = new Index(); + + /** + * MBean class implementing the management interfaces. + */ + @MBeanDescription("Management Bean for Direct Exchange") + private final class DestNameExchangeMBean extends ExchangeMBean + { + private String[] _bindingItemNames = {"BindingKey", "QueueNames"}; + private String[] _bindingItemDescriptions = {"Binding key", "Queue Names"}; + private String[] _bindingItemIndexNames = {"BindingKey"}; + private OpenType[] _bindingItemTypes = new OpenType[2]; + + private CompositeType _bindingDataType = null; + private TabularType _bindinglistDataType = null; + private TabularDataSupport _bindingList = null; + + @MBeanConstructor("Creates an MBean for AMQ direct exchange") + public DestNameExchangeMBean() throws NotCompliantMBeanException + { + super(); + init(); + } + + /** + * initialises the OpenType objects. + */ + private void init() + { + try + { + _bindingItemTypes[0] = SimpleType.STRING; + //_bindingItemTypes[1] = ArrayType.getArrayType(SimpleType.STRING); + _bindingItemTypes[1] = new ArrayType(1, SimpleType.STRING); + + _bindingDataType = new CompositeType("QueueBinding", + "Queue and binding keye", + _bindingItemNames, + _bindingItemDescriptions, + _bindingItemTypes); + _bindinglistDataType = new TabularType("Bindings", + "List of queues and binding keys", + _bindingDataType, + _bindingItemIndexNames); + } + catch(OpenDataException ex) + { + //It should never occur. + _logger.error("OpenDataTypes could not be created.", ex); + throw new RuntimeException(ex); + } + } + + public TabularData viewBindings() + throws OpenDataException + { + Map<String, List<AMQQueue>> bindings = _index.getBindingsMap(); + _bindingList = new TabularDataSupport(_bindinglistDataType); + + for (Map.Entry<String, List<AMQQueue>> entry : bindings.entrySet()) + { + String key = entry.getKey(); + List<String> queueList = new ArrayList<String>(); + + List<AMQQueue> queues = entry.getValue(); + for (AMQQueue q : queues) + { + queueList.add(q.getName()); + } + + Object[] bindingItemValues = {key, queueList.toArray(new String[0])}; + CompositeData bindingData = new CompositeDataSupport(_bindingDataType, + _bindingItemNames, + bindingItemValues); + _bindingList.put(bindingData); + } + + return _bindingList; + } + + public void createBinding(String queueName, String binding) + throws JMException + { + AMQQueue queue = ApplicationRegistry.getInstance().getQueueRegistry().getQueue(queueName); + + if (queue == null) + { + throw new JMException("Queue \"" + queueName + "\" is not registered with the exchange."); + } + + try + { + registerQueue(binding, queue, null); + queue.bind(binding, DestNameExchange.this); + } + catch (AMQException ex) + { + throw new MBeanException(ex); + } + } + + }// End of MBean class + + + protected ExchangeMBean createMBean() throws AMQException + { + try + { + return new DestNameExchangeMBean(); + } + catch (NotCompliantMBeanException ex) + { + _logger.error("Exception occured in creating the DestNameExchenge", ex); + throw new AMQException("Exception occured in creating the DestNameExchenge", ex); + } + } + + public void registerQueue(String routingKey, AMQQueue queue, FieldTable args) throws AMQException + { + assert queue != null; + assert routingKey != null; + if (!_index.add(routingKey, queue)) + { + _logger.debug("Queue " + queue + " is already registered with routing key " + routingKey); + } + else + { + _logger.debug("Binding queue " + queue + " with routing key " + routingKey + + " to exchange " + this); + } + } + + public void deregisterQueue(String routingKey, AMQQueue queue) throws AMQException + { + assert queue != null; + assert routingKey != null; + + if (!_index.remove(routingKey, queue)) + { + throw new AMQException("Queue " + queue + " was not registered with exchange " + this.getName() + + " with routing key " + routingKey + ". No queue was registered with that routing key"); + } + } + + public void route(AMQMessage payload) throws AMQException + { + final BasicPublishBody publishBody = payload.getPublishBody(); + final String routingKey = publishBody.routingKey; + final List<AMQQueue> queues = _index.get(routingKey); + if (queues == null || queues.isEmpty()) + { + String msg = "Routing key " + routingKey + " is not known to " + this; + if (publishBody.mandatory) + { + throw new NoRouteException(msg, payload); + } + else + { + _logger.warn(msg); + } + } + else + { + if (_logger.isDebugEnabled()) + { + _logger.debug("Publishing message to queue " + queues); + } + + for (AMQQueue q : queues) + { + payload.enqueue(q); + } + } + } +} |