How to use faultVariable in fault handler?

[jiehuan_li]

In jbpm bpel 1.1 beta 1, I am trying to catch a fault thrown by a web service, and then reply the client with fault message that contains the fault code from the originating web service. Below is my fault handler code:

 <faultHandlers>
 <catch faultName="svc:JSR181WebServiceException" faultVariable="svcFlt" faultMessageType="svc:JSR181WebServiceException">
 <sequence>
 <assign name="copyStep2Fault">
 <copy>
 <from variable="svcFlt" part="JSR181WebServiceException" query="/JSR181WebServiceException/svc:code"/>
 <to variable="operationFlt" part="detail"/>
 </copy>
 </assign>
 <reply operation="connect2" partnerLink="jbpmbpelRelation" portType="jbpmbpel:jbpmbpelFrontEnd"
 variable="operationFlt" faultName="jbpmbpel:step2Fault" />
 </sequence>
 </catch>
 </faultHandlers>

I am getting the following exception when I try to deploy the definition:

10:27:58,970 ERROR [ProblemHandler] jbpmbpel.bpel(34) cvc-complex-type.3.2.2: Attribute 'faultMessageType' is not allowed to appear in element 'catch'.
10:27:59,010 ERROR [[DeployServlet]] Servlet.service() for servlet DeployServlet threw exception
org.jbpm.jpdl.JpdlException: [[ERROR] jbpmbpel.bpel(34) cvc-complex-type.3.2.2: Attribute 'faultMessageType' is not allowed to appear in element 'catch'.]
 at org.jbpm.jpdl.par.ProcessArchive.parseProcessDefinition(ProcessArchive.java:84)
 at org.jbpm.bpel.web.deploy.DeployServlet.doGet(DeployServlet.java:49)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
 at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
 at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
 at java.lang.Thread.run(Thread.java:595)

I found both bpel_1_1.xsd and bpel_2_0.xsd in the package. Apparently 1.1 doesn't support faultMessageType in catch but 2.0 does. So I guess my question is how do I accomplish what I am trying to do using 1.1? Or what do I need to do to make jboss jbpm bpel 1.1 beta 1 to use 2.0?

Jiehuan

[jiehuan_li]

Any help would be appreciated. I really need to get this to work. Thanks.

[aguizar]

In BPEL 1.1, the fault variable is not local to the fault handler; it references a variable in the enclosing scope. That is why you don't see a faultMessageType attribute there.

If you want a document to be parsed under 2.0 rules, change the namespace of your BPEL elements from

http://schemas.xmlsoap.org/ws/2003/03/business-process/

to

http://schemas.xmlsoap.org/ws/2004/03/business-process/

[jiehuan_li]

Alex,

Thanks for the reply. I tried defining the variable in the enclosing scope and then referencing it in the faultHandler by faultVariable, but I ran into a dilemma. If I try to deploy the definition with the faultVariable specified in the faultHandler, I am getting the following exception:

10:05:41,967 ERROR [[DeployServlet]] Servlet.service() for servlet DeployServlet threw exception
org.jbpm.jpdl.JpdlException: [[ERROR] jbpmbpel.bpel catch must specify either a faultMessageType or a faultElement [/process/faultHandlers/catch]]
 at org.jbpm.jpdl.par.ProcessArchive.parseProcessDefinition(ProcessArchive.java:84)
 at org.jbpm.bpel.web.deploy.DeployServlet.doGet(DeployServlet.java:49)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
 at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
 at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
 at java.lang.Thread.run(Thread.java:595)

Then I added 'faultElement' in the 'catch', I am getting the following exception:

09:28:51,999 ERROR [[DeployServlet]] Servlet.service() for servlet DeployServlet threw exception
org.jbpm.jpdl.JpdlException: [[ERROR] jbpmbpel.bpel(36) cvc-complex-type.3.2.2: Attribute 'faultElement' is not allowed to appear in element 'catch'.]
 at org.jbpm.jpdl.par.ProcessArchive.parseProcessDefinition(ProcessArchive.java:84)
 at org.jbpm.bpel.web.deploy.DeployServlet.doGet(DeployServlet.java:49)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
 at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
 at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
 at java.lang.Thread.run(Thread.java:595)

Below is my code:

<?xml version="1.0" encoding="UTF-8"?>
<process name="jbpmbpelFrontEnd" targetNamespace="com:vizuri:bpel:jbpmbpel"
 xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
 xmlns:tns="com:vizuri:bpel:jbpmbpel" xmlns:jbpmbpel="com:vizuri:bpel:jbpmbpel" xmlns:typ="com:vizuri:bpel:types"
 xmlns:svc="http://webservice.vizuri.com/jaws" xmlns:svc2="http://webservice.vizuri.com/jaws"
 xmlns:bpel="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://schemas.xmlsoap.org/ws/2003/03/business-process/
 http://schemas.xmlsoap.org/ws/2003/03/business-process/">

 <variables>
 <variable name="operationFlt" messageType="jbpmbpel:operationFault" />
 <variable name="svcFlt" element="svc:JSR181WebServiceException" />
 </variables>
<faultHandlers>
 <catch faultName="svc:JSR181WebServiceException" faultVariable="svcFlt">
 <sequence>
 <assign name="copyStep2Fault">
 <copy>
 <from variable="svcFlt" query="/JSR181WebServiceException/svc:code"/>
 <to variable="operationFlt" part="detail"/>
 </copy>
 </assign>
 <reply operation="connect2" partnerLink="jbpmbpelRelation" portType="jbpmbpel:jbpmbpelFrontEnd"
 variable="operationFlt" faultName="jbpmbpel:step2Fault" />
 </sequence>
 </catch>
 </faultHandlers>
</process>

I understand that adding 'faultElement' in catch causes problem because bpel 1.1 schema doesn't allow it, but why do I get the first exception when I don't have faultElement or faultMessageType in catch?

Jiehuan

[jiehuan_li]

Any pointers would be appreciated! Thanks.

[aguizar]

I just reviewed the BPEL reader and it does not contain logic to parse 1.1 fault handlers, even tough the execution logic deals with them property. Please open a JIRA issue.

[jiehuan_li]

Created BPEL-199.