<!--
    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.
-->
<!--  
    Tune ActiveMQ broker for high throughput of messages
    Be sure to make necessary changes in your producer and consumer, since there you can make the most notable difference
    
    For more information, see:
    http://activemq.apache.org/performance-tuning.html
 -->
<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"/>

    <broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" dataDirectory="${activemq.base}/data" useJmx="false" advisorySupport="false">

        <!-- 
            Use VM cursor
            For more information, see:           
            http://activemq.apache.org/message-cursors.html
        -->
        <destinationPolicy>
            <policyMap>
              <policyEntries>
                <policyEntry topic=">" producerFlowControl="true" memoryLimit="1mb">
                  <pendingSubscriberPolicy>
                    <vmCursor />
                  </pendingSubscriberPolicy>
                </policyEntry>
                <policyEntry queue=">" producerFlowControl="true" memoryLimit="1mb">
                  <pendingQueuePolicy>
                    <vmQueueCursor/>
                  </pendingQueuePolicy>
                </policyEntry>
              </policyEntries>
            </policyMap>
        </destinationPolicy> 

        <!-- 
            Use KahaDB for persistence
            Tune it a bit so we minimize IO operations
            For more information, see:            
            http://activemq.apache.org/kahadb.html
        -->
        <persistenceAdapter>
            <kahaDB directory="${activemq.base}/data/kahadb" enableJournalDiskSyncs="false" indexWriteBatchSize="10000" indexCacheSize="1000"/>
        </persistenceAdapter>

        <!-- 
            Use TCP transport 
            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>
