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    1   /**
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
   10    *
   11    * Unless required by applicable law or agreed to in writing, software
   12    * distributed under the License is distributed on an "AS IS" BASIS,
   13    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    * See the License for the specific language governing permissions and
   15    * limitations under the License.
   16    */
   17   package org.apache.activemq.broker.region.policy;
   18   
   19   import org.apache.activemq.broker.region.MessageReference;
   20   import org.apache.activemq.broker.region.Subscription;
   21   import org.apache.activemq.command.ActiveMQDestination;
   22   import org.apache.activemq.filter.MessageEvaluationContext;
   23   import org.apache.activemq.filter.NonCachedMessageEvaluationContext;
   24   
   25   /**
   26    * Simple dispatch policy that determines if a message can be sent to a subscription
   27    *
   28    * @org.apache.xbean.XBean
   29    * @version $Revision$
   30    */
   31   public class SimpleDispatchSelector implements DispatchSelector {
   32   
   33       private final ActiveMQDestination destination;
   34   
   35       /**
   36        * @param destination
   37        */
   38       public SimpleDispatchSelector(ActiveMQDestination destination) {
   39           this.destination = destination;
   40       }
   41   
   42       public boolean canDispatch(Subscription subscription, MessageReference node) throws Exception {
   43           MessageEvaluationContext msgContext = new NonCachedMessageEvaluationContext();
   44           msgContext.setDestination(this.destination);
   45           msgContext.setMessageReference(node);
   46           return subscription.matches(node, msgContext);
   47       }
   48   }

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