Drools: How to retrieve value out of HashMap

[wili]

Via JMS an javax.jms.ObjectMessage containing a java.util.HashMap arrives at the ESB. With Drools I would like to check some keys in this HashMap and route the Message.

JMS Sender:

HashMap<String, Object> map = new HashMap<String, Object>(4);
 map.put("lockType", lockType);
 map.put("accountId", accountId);
 map.put("contactId", contactId);
 map.put("productId", productId);
return session.createObjectMessage(map);

ContentBasedRouter:

<action class="org.jboss.soa.esb.actions.ContentBasedRouter" name="MessageFilter">
 <property name="ruleSet" value="FilterRules.drl"/>
 <property name="ruleReload" value="true"/>
 <property name="destinations">
 <route-to destination-name="DemoDestination" service-category="locking" service-name="testDestination"/>
 </property>
 <property name="object-paths">
 <object-path esb="body.'org.jboss.soa.esb.message.defaultEntry'" />
 </property>
 </action>

Rule:

package com.unitedinternet.esb

#list any import classes here.
import org.jboss.soa.esb.message.Message;
import java.util.HashMap;

#declare any global variables here
global java.util.List destinations;

rule "route"
 when

 map: HashMap (???????)
 then

 System.out.println("####################");
 destinations.add("DemoDestination");
end

How can I retrieve a Keyvalue in the condition section of the rule?
What excactly is org.jboss.soa.esb.message.defaultEntry ?

[beve]

Hi,

I think the following should work:

rule "PrintMap"
 no-loop
 when
 $m : Message ()
 $map : HashMap () from $m.body.get()
 then
 System.out.println("Print Map " + $map);
end

What excactly is org.jboss.soa.esb.message.defaultEntry ?

This is the default location for an object added to the body.
For example if you call message.getBody.add("some string"); that object can be accessed by either
message.getBody().get();
or
message.getBody().get("org.jboss.soa.esb.message.defaultEntry");

Regards,

/Daniel