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apache-camelspring-camelspring-dsl

Defining a non null map variable in Apache Camel routes

I've a situation where I want to define a non null Map variable in Camel route and put value into it. But I couldn't find a way to do that.

I tried defining a map by setting resultType as "java.util.HashMap" in setProperty field.But I got NullPointerException.

   <route id = "update_fields">
    <from uri ="direct:update_fields"/>
    <setProperty propertyName="fieldMap">
    <simple resultType="java.util.HashMap">[:]</simple>              
    </setProperty>               
    <groovy>exchange.getProperty('fieldMap').put(body.rId,body.b_id)</groovy>
    </route>
Solution

  • Use groovy language ala:

    <setProperty propertyName="fieldMap">
  <groovy>new HashMap()</groovy>              
</setProperty>