[jboss-dev-forums] [Design of JBoss ESB] - How to deliver a synchronous message when integrating jbpm
I write a simple application,but I meet a problem.Here is the description of my
application.
In the esb I defined three services.Firt service is to start a jbpm process defined in the
project using bpmprocessor.Second service is to check password,and it is to be called by
the process using EsbActionHandler.Then the last service is to receive the final result
return from the process and show the result.The following is part of my jboss-esb.xml.
<services>
| <service category="Starter" name="StartProcess"
| description="to start a process instance">
| <listeners>
| <jms-listener name="JMS-Gateway"
| busidref="quickstartGwChannel" maxThreads="1"
is-gateway="true" />
| <jms-listener name="EsbListener"
| busidref="quickstartEsbChannel" maxThreads="1" />
| </listeners>
| <actions mep="OneWay">
| <action name="testStore"
| class="org.jboss.soa.esb.actions.TestMessageStore" />
|
| <action name="display"
|
class="org.jboss.soa.esb.samples.quickstart.helloworld.MyJMSListenerAction"
| process="displayMessage" />
| <action name="start_process"
| class="org.jboss.soa.esb.services.jbpm.actions.BpmProcessor">
| <property name="command"
| value="StartProcessInstanceCommand" />
| <property name="process-definition-name"
| value="LoopCheckPassword" />
| <property name="esbToBpmVars">
| <mapping esb="BODY_CONTENT" bpm="theBody" />
| </property>
| </action>
| </actions>
| </service>
|
|
| <service category="SingleAction" name="CheckPassword"
| description="to check password using soapclient to communicate with web
service">
| <listeners>
| <jms-listener name="EsbListener1" busidref="useless1"
| maxThreads="1" />
| </listeners>
| <actions>
| <action name="request-mapper"
|
class="org.jboss.soa.esb.samples.quickstart.helloworld.CheckPassword.EsbAction.InputAdapter">
| </action>
| <action name="soapui-client-action"
| class="org.jboss.soa.esb.actions.soap.SOAPClient">
| <property name="wsdl"
| value="http://211.87.226.149/axis2/services/Hrser?wsdl" />
| <property name="responseAsOgnlMap" value="true" />
| <property name="SOAPAction" value="doCheckPassword" />
| </action>
| </actions>
| </service>
|
|
| <service category="ResultService" name="returnResult"
| description="to deal with the return message from the process">
| <listeners>
| <jms-listener name="EsbListener2" busidref="useless2"
| maxThreads="1" />
| </listeners>
| <actions>
| <action name="resultExtraction"
|
class="org.jboss.soa.esb.samples.quickstart.helloworld.CheckPassword.EsbAction.ShowAndReturnMessage">
| </action>
| </actions>
| </service>
|
| </services>
Then in the client class,I use ServiceInvoker to deliver a synchronous messge.The code
is:
ServiceInvoker deliveryAdapter = new ServiceInvoker("Starter",
"StartProcess");
| response=deliveryAdapter.deliverSync(message, 10000L);
Now the problem is,the result return to the third service which is form the process
cannot be passed to the client. The purpose of my application is to check multi-group
username and password one time with the help of jbpm while the second service just can do
a single check. So I want to return the final result to the client.But in my application
the client is to call the first service and receive the message processed by the actions
in the first service.I cannot receive the final result because the action of calling
process(using BpmProcessor) in the first service is asynchronous. How can I manage it?
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