OverviewThere is an updates XML syntax for configuring message brokers - see here So we decided that using XML would make this configuration much easier. we use XBean to perform the XML configuration. For details of the XML see the Xml Reference
ExamplesThe default ActiveMQ configuration: current default config. <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"> <property name="locations"> <value>file:${activemq.base}/conf/credentials.properties</value> </property> </bean> <!-- The <broker> element is used to configure the ActiveMQ broker. --> <broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" dataDirectory="${activemq.base}/data"> <!-- For better performances use VM cursor and small memory limit. For more information, see: http://activemq.apache.org/message-cursors.html Also, if your producer is "hanging", it's probably due to producer flow control. For more information, see: http://activemq.apache.org/producer-flow-control.html --> <destinationPolicy> <policyMap> <policyEntries> <policyEntry topic=">" producerFlowControl="true" memoryLimit="1mb"> <pendingSubscriberPolicy> <vmCursor /> </pendingSubscriberPolicy> </policyEntry> <policyEntry queue=">" producerFlowControl="true" memoryLimit="1mb"> <!-- Use VM cursor for better latency For more information, see: http://activemq.apache.org/message-cursors.html <pendingQueuePolicy> <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> <!-- 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.base}/data/kahadb"/> </persistenceAdapter> <!-- The systemUsage controls the maximum amount of space the broker will use before slowing down producers. For more information, see: http://activemq.apache.org/producer-flow-control.html <systemUsage> <systemUsage> <memoryUsage> <memoryUsage limit="20 mb"/> </memoryUsage> <storeUsage> <storeUsage limit="1 gb"/> </storeUsage> <tempUsage> <tempUsage limit="100 mb"/> </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> <transportConnector name="openwire" uri="tcp://0.0.0.0:61616"/> </transportConnectors> </broker> <!-- Enable web consoles, REST and Ajax APIs and demos Take a look at ${ACTIVEMQ_HOME}/conf/jetty.xml for more details --> <import resource="jetty.xml"/> </beans> From the binary distributionthere is an activemq script allowing you to run a Message Broker as a stand alone process from the command line easily providing the $ACTIVEMQ_HOME/bin directory is on your PATH. |