ActiveMQ example source code file (activemq-specjms.xml)

This example ActiveMQ source code file (activemq-specjms.xml) 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.

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The ActiveMQ activemq-specjms.xml source code

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    Licensed to the Apache Software Foundation (ASF) under one or more
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    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
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    http://www.apache.org/licenses/LICENSE-2.0
   
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<beans
  xmlns="http://www.springframework.org/schema/beans"
  xmlns:amq="http://activemq.apache.org/schema/core"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
  http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd">

    <!-- Allows us to use system properties as variables in this configuration file -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" />

    <!-- 
        The <broker> element is used to configure the ActiveMQ broker. 
        
        advisories incurr a hit with every add connection|destination|producer|consumer
          - client side:  providerUrl = tcp://localhost:61616?jms.watchTopicAdvisories=false
        statistics have a small impact on concurrency so disable
        schedualer has a small impact as it checks for the presence three properties on each message
        jmx adds a bunch of wrapper classes

        ACTIVEMQ_OPTS_MEMORY="-Xmx11g -Xms6g -Dorg.apache.activemq.UseDedicatedTaskRunner=false -Djava.util.logging.config.file=logging.properties -XX:+UseLargePages"
    -->
    <broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" 
        dataDirectory="${activemq.base}/data" destroyApplicationContextOnStop="true" deleteAllMessagesOnStartup="true"        
        advisorySupport="false"
        enableStatistics="false"
        schedulerSupport="false"
        useJmx="false">
 
        <destinationPolicy>
            <policyMap>
              <policyEntries>
                <!-- 
                    producerFlowControll thread unnecessary with no memory limits
                    with no failover, no need to suppress duplicates so audit can be disabled  
                    message expiry thread unnecessary as normal dispatch will handle expiry
                -->
                <policyEntry topic=">" producerFlowControl="false" enableAudit="false" expireMessagesPeriod="0">
                  <pendingSubscriberPolicy>
                    <!-- keep all references in memory -->
                    <vmCursor />
                  </pendingSubscriberPolicy>
                </policyEntry>
                <policyEntry queue=">" producerFlowControl="false" enableAudit="false" expireMessagesPeriod="0">
                  <pendingQueuePolicy>
                    <!-- keep all references in memory -->
                    <vmQueueCursor/>
                  </pendingQueuePolicy>
                  
                </policyEntry>
              </policyEntries>
            </policyMap>
        </destinationPolicy> 
 
        
        <!-- 
            The managementContext is used to configure how ActiveMQ is exposed in 
            JMX. By default, ActiveMQ uses the MBean server that is started by 
            the JVM. For more information, see: 
            
            http://activemq.apache.org/jmx.html 
        -->
        <managementContext>
            <managementContext createConnector="false"/>
        </managementContext>

        <persistenceAdapter>
            <!-- defer cleanup/checkpoint -->
            <!-- write in max 62k chunks to max disk io bandwith -->
            <!-- use small number of data files (seldom switch) -->
            <!-- keep index off the disk (in cache) -->
            
            <kahaDB directory="${activemq.base}/data/kahadb" 
                cleanupInterval="300000" checkpointInterval="50000"
                journalMaxWriteBatchSize="62k"
                journalMaxFileLength="1g"
                indexCacheSize="100000" indexWriteBatchSize="100000"
            /> 
        </persistenceAdapter>
        
        <!-- ensure there is loads or memory for destinations -->
        <systemUsage>
            <systemUsage>
                <memoryUsage>
                    <memoryUsage limit="2 g"/>
                </memoryUsage>
            </systemUsage>
        </systemUsage>
		
		  
        <!-- 
            The transport connectors expose ActiveMQ over a given protocol to
            clients and other brokers. For more information, see: 
            
            http://activemq.apache.org/configuring-transports.html 
        -->
        <transportConnectors>
            <transportConnector name="openwire" uri="tcp://0.0.0.0:61616"/>
        </transportConnectors>

    </broker>
    
</beans>