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ActiveMQ example source code file (ProducerBrokerExchange.java)

This example ActiveMQ source code file (ProducerBrokerExchange.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - ActiveMQ tags/keywords

connectioncontext, connectioncontext, destination, destination, log, logger, producerbrokerexchange, producerbrokerexchange, producerstate, region, region

The ActiveMQ ProducerBrokerExchange.java source code

/**
 * 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;

import org.apache.activemq.broker.region.Destination;
import org.apache.activemq.broker.region.Region;
import org.apache.activemq.command.Message;
import org.apache.activemq.state.ProducerState;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Holds internal state in the broker for a MessageProducer
 * 
 * 
 */
public class ProducerBrokerExchange {

    private static final Logger LOG = LoggerFactory.getLogger(ProducerBrokerExchange.class);
    private ConnectionContext connectionContext;
    private Destination regionDestination;
    private Region region;
    private ProducerState producerState;
    private boolean mutable = true;
    private long lastSendSequenceNumber = -1;
    
    public ProducerBrokerExchange() {
    }

    public ProducerBrokerExchange copy() {
        ProducerBrokerExchange rc = new ProducerBrokerExchange();
        rc.connectionContext = connectionContext.copy();
        rc.regionDestination = regionDestination;
        rc.region = region;
        rc.producerState = producerState;
        rc.mutable = mutable;
        return rc;
    }

    
    /**
     * @return the connectionContext
     */
    public ConnectionContext getConnectionContext() {
        return this.connectionContext;
    }

    /**
     * @param connectionContext the connectionContext to set
     */
    public void setConnectionContext(ConnectionContext connectionContext) {
        this.connectionContext = connectionContext;
    }

    /**
     * @return the mutable
     */
    public boolean isMutable() {
        return this.mutable;
    }

    /**
     * @param mutable the mutable to set
     */
    public void setMutable(boolean mutable) {
        this.mutable = mutable;
    }

    /**
     * @return the regionDestination
     */
    public Destination getRegionDestination() {
        return this.regionDestination;
    }

    /**
     * @param regionDestination the regionDestination to set
     */
    public void setRegionDestination(Destination regionDestination) {
        this.regionDestination = regionDestination;
    }

    /**
     * @return the region
     */
    public Region getRegion() {
        return this.region;
    }

    /**
     * @param region the region to set
     */
    public void setRegion(Region region) {
        this.region = region;
    }

    /**
     * @return the producerState
     */
    public ProducerState getProducerState() {
        return this.producerState;
    }

    /**
     * @param producerState the producerState to set
     */
    public void setProducerState(ProducerState producerState) {
        this.producerState = producerState;
    }

    /**
     * Enforce duplicate suppression using info from persistence adapter
     * @param messageSend
     * @return false if message should be ignored as a duplicate
     */
    public boolean canDispatch(Message messageSend) {
        boolean canDispatch = true;
        if (lastSendSequenceNumber > 0) {
            if (messageSend.getMessageId().getProducerSequenceId() <= lastSendSequenceNumber) {
                canDispatch = false;
                LOG.debug("suppressing duplicate message send [" + messageSend.getMessageId() + "] with producerSequenceId [" 
                        + messageSend.getMessageId().getProducerSequenceId() + "] less than last stored: "  + lastSendSequenceNumber);
            }
        }
        return canDispatch;
    }

    public void setLastStoredSequenceId(long l) {
        lastSendSequenceNumber = l;
        LOG.debug("last stored sequence id set: " + l);
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ ProducerBrokerExchange.java source code file:

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