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 */
017package org.apache.activemq.broker.region.policy;
018
019import org.apache.activemq.broker.region.MessageReference;
020import org.apache.activemq.broker.region.Subscription;
021import org.apache.activemq.command.ActiveMQDestination;
022import org.apache.activemq.filter.MessageEvaluationContext;
023import org.apache.activemq.filter.NonCachedMessageEvaluationContext;
024
025/**
026 * Simple dispatch policy that determines if a message can be sent to a subscription
027 *
028 * @org.apache.xbean.XBean
029 * 
030 */
031public class SimpleDispatchSelector implements DispatchSelector {
032
033    private final ActiveMQDestination destination;
034
035    /**
036     * @param destination
037     */
038    public SimpleDispatchSelector(ActiveMQDestination destination) {
039        this.destination = destination;
040    }
041
042    public boolean canDispatch(Subscription subscription, MessageReference node) throws Exception {
043        MessageEvaluationContext msgContext = new NonCachedMessageEvaluationContext();
044        msgContext.setDestination(this.destination);
045        msgContext.setMessageReference(node);
046        return subscription.matches(node, msgContext);
047    }
048}