[SOLVED] How to call MEL expression while invoking the key value with key from properties file in mule

How to call MEL expression while invoking the key value with key from properties file in mule

I have properties as below

path.order=/order
path.address=/address

Usually we will use ${path.order} to get the key value. I want to pass the type(order or address) dynamically to get the key value. Like below

${path.#[flowVars.type]}

I tired with above expression. It did not work. can you please help on this to prepare and get the key dynamically

Solution

Your requirement can be achieved using dataweave function. I am posting a snippet. I tried concatenating withing the final dw expression, but it didn't work. Let me know if this fulfills your requirements.

<message-properties-transformer scope="invocation" doc:name="Message Properties">
            <add-message-property key="type1" value="address"/>
            <add-message-property key="type2" value="object"/>
        </message-properties-transformer>
<message-properties-transformer scope="invocation" doc:name="Message Properties">
     <add-message-property key="property1" value="#['path.' + flowVars.type1]"/>
     <add-message-property key="property2" value="#['path.' + flowVars.type2]"/>
        </message-properties-transformer>
<logger message="#[dw('p(flowVars.property1)')]" level="INFO" doc:name="Logger"/>

I have written a post on this here, as well.