[CONF] Apache Camel: How do I use Spring Property Placeholder with Camel XML (page edited)

Sat, 15 Nov 2008 23:01:37 -0800

Page Edited : CAMEL : How do I use Spring Property Placeholder with Camel XML

How do I use Spring Property Placeholder with Camel XML has been edited by Claus Ibsen (Nov 15, 2008).

(View changes)

Content:

How do I use Spring Property Placeholder with Camel XML

We don't yet support the ${something} notation inside arbitrary Camel XML. For example at the time of writing this is not supported

<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-2.0.xsd
       http://activemq.apache.org/camel/schema/spring http://activemq.apache.org/camel/schema/spring/camel-spring.xsd
    ">

  <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>

  <camelContext xmlns="http://activemq.apache.org/camel/schema/spring">
    <route>
      <from ref="activemq:${someQueueName}"/>
      <to uri="mock:results"/>
    </route>
  </camelContext>


</beans>

However you can use the <endpoint/> element to define endpoints which does support the property resolving which you can then refer to by name or reference in XML or Java code.

<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-2.0.xsd
       http://activemq.apache.org/camel/schema/spring http://activemq.apache.org/camel/schema/spring/camel-spring.xsd
    ">

  <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>

  <camelContext xmlns="http://activemq.apache.org/camel/schema/spring">
    <endpoint id="input1" uri="activemq:${someQueueName}"/>

    <route>
      <from ref="input1"/>
      <to uri="activemq:OutputQueue"/>
    </route>
  </camelContext>


</beans>

To fully support propert placeholders Spring 3.0 is required due to a limitation in Spring 2.x. See JIRA SPR-4466

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