trunk/activemq-core/src/main/java/org/apache/activemq/broker/region/policy/SimpleDispatchSelector.java

/**
 * 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.activemq.broker.region.policy;

import org.apache.activemq.broker.region.MessageReference;
import org.apache.activemq.broker.region.Subscription;
import org.apache.activemq.command.ActiveMQDestination;
import org.apache.activemq.filter.MessageEvaluationContext;
import org.apache.activemq.filter.NonCachedMessageEvaluationContext;

/**
 * Simple dispatch policy that determines if a message can be sent to a subscription
 *
 * @org.apache.xbean.XBean
 * 
 */
public class SimpleDispatchSelector implements DispatchSelector {

    private final ActiveMQDestination destination;

    /**
     * @param destination
     */
    public SimpleDispatchSelector(ActiveMQDestination destination) {
        this.destination = destination;
    }

    public boolean canDispatch(Subscription subscription, MessageReference node) throws Exception {
        MessageEvaluationContext msgContext = new NonCachedMessageEvaluationContext();
        msgContext.setDestination(this.destination);
        msgContext.setMessageReference(node);
        return subscription.matches(node, msgContext);
    }
}