CODEWITHSUNDEEP
springpropertiesexpressionapache-camelplaceholder
David
David

Reputation: 3648

how to make camel simple expression work with property placeholder in spring xml

I am trying to using property placeholder in camel route. I have test.properties which define property: MQ.queuename1=TESTQUEUE. In camel context, i define placeholder:

<camel:camelContext xmlns="http://camel.apache.org/schema/spring" >
  <propertyPlaceholder id="camel-properties"  location="file:${web.external.propdir}/test.properties"/>

In the route, i use simple expresion to evaluate the property:

<choice>
           <when>
                <simple>${in.header.queuename} == '{{MQ.queuename1}}'</simple>
            <bean ref="ExtractOrderContent" method="extractContent"/>
                <to uri="websphere-mq:queue:TESTQUEUE" pattern="InOnly"/>
            </when> 
        </choice>

When i run camel, the property file is recognized by camel but it looks like the simple expression doesn't work. Do i miss anything?

Upvotes: 4

Views: 24753

Answers (2)

Claus Ibsen
Claus Ibsen

Reputation: 55760

You can use the properties function from simple (http://camel.apache.org/simple)

<simple>${in.header.queuename} == ${properties:MQ.queuename1}</simple>

The {{ }} in nested < when > is likely due to a bug, that has been fixed in newer Camel releases.

Upvotes: 14

Hussain Pirosha
Hussain Pirosha

Reputation: 1376

From the route configuration that you have provided, It seems that you missed out setting queuename in header. Instead you should use properties component as

<simple>${properties:queuename} == 'MQ.queuename1'</simple>

Upvotes: 2

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