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<beans
  xmlns="http://www.springframework.org/schema/beans"
  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.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">
        <property name="locations">
            <value>file:${activemq.conf}/credentials.properties</value>
        </property>
    </bean>

   <!-- Allows accessing the server log -->
    <bean id="logQuery" class="io.fabric8.insight.log.log4j.Log4jLogQuery"
          lazy-init="false" scope="singleton"
          init-method="start" destroy-method="stop">
    </bean>

    <!--
        The <broker> element is used to configure the ActiveMQ broker.
    -->
    <broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" dataDirectory="${activemq.data}">

        <destinationPolicy>
            <policyMap>
              <policyEntries>
                <policyEntry topic=">" optimizedDispatch="true">
                    <!-- The constantPendingMessageLimitStrategy is used to prevent
                         slow topic consumers to block producers and affect other consumers
                         by limiting the number of messages that are retained
                         For more information, see:

                         http://activemq.apache.org/slow-consumer-handling.html

                    -->
                  <pendingMessageLimitStrategy>
                    <constantPendingMessageLimitStrategy limit="50000"/>
                  </pendingMessageLimitStrategy>
                </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>

        <!--
            Configure message persistence for the broker. The default persistence
            mechanism is the KahaDB store (identified by the kahaDB tag).
            For more information, see:

            http://activemq.apache.org/persistence.html
        -->
        <persistenceAdapter>
            <kahaDB directory="${activemq.data}/kahadb"/>
            <!-- <kahaDB directory="${activemq.data}/kahadb" journalDiskSyncStrategy="periodic"/> -->
        </persistenceAdapter>

        <plugins>
            <!-- drop messages that have been sent to the DLQ -->
            <discardingDLQBrokerPlugin dropAll="true"/>

            <simpleAuthenticationPlugin>
                <users>
                    <authenticationUser username="${activemq.username}" password="${activemq.password}" groups="user"/>
                    <authenticationUser username="listener" password="listener" groups="anonymous"/>
                </users>
            </simpleAuthenticationPlugin>
                                                                                                                                                                                                                    
            <!--  lets configure a destination based authorization mechanism -->
            <authorizationPlugin>
                <map>
                    <authorizationMap>
                        <authorizationEntries>
                            <authorizationEntry queue="BG.Event.>" read="user" write="user" admin="user" />
                            <authorizationEntry topic="BG.Event.>" read="user, anonymous" write="user" admin="user" />

                            <authorizationEntry topic="ActiveMQ.Advisory.>" read="user, anonymous" write="user, anonymous" admin="user, anonymous"/>
                        </authorizationEntries>

                        <!-- let's assign roles to temporary destinations. comment this entry if we don't want any roles assigned to temp destinations -->
                        <!--
                        <tempDestinationAuthorizationEntry>
                            <tempDestinationAuthorizationEntry read="tempDestinationAdmins" write="tempDestinationAdmins" admin="tempDestinationAdmins"/>
                        </tempDestinationAuthorizationEntry>
                        -->
                    </authorizationMap>
                </map>
            </authorizationPlugin>
          </plugins>

          <!--
            The systemUsage controls the maximum amount of space the broker will
            use before disabling caching and/or slowing down producers. For more information, see:
            http://activemq.apache.org/producer-flow-control.html
          -->
          <systemUsage>
            <systemUsage>
                <memoryUsage>
					<memoryUsage limit="256 mb"/>
                    <!--<memoryUsage percentOfJvmHeap="70" /> -->
                </memoryUsage>
                <storeUsage>
                    <storeUsage limit="10 gb"/>
                </storeUsage>
                <tempUsage>
                    <tempUsage limit="1 gb"/>
                </tempUsage>
            </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>
            <!-- DOS protection, limit concurrent connections to 1000 and frame size to 100MB -->
			<transportConnector name="openwire" uri="tcp://127.0.0.1:61616?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600"/>
        </transportConnectors>

        <!-- destroy the spring context on shutdown to stop jetty -->
        <shutdownHooks>
            <bean xmlns="http://www.springframework.org/schema/beans" class="org.apache.activemq.hooks.SpringContextHook" />
        </shutdownHooks>

    </broker>

    <!--
        Enable web consoles, REST and Ajax APIs and demos
        The web consoles requires by default login, you can disable this in the jetty.xml file

        Take a look at ${ACTIVEMQ_HOME}/conf/jetty.xml for more details
    -->
    <import resource="jetty.xml"/>

</beans>