5 Replies Latest reply on Jul 8, 2006 10:24 AM by bertrand.njiipwo

Web Service invocation inside a BPEL-Process failed.

bertrand.njiipwo Jul 6, 2006 6:10 AM

Hello @all,

i have written a BPEL-process(Invoker-process) which call the HelloWolrd-WS.
The deploying steps (similar like deploy the hello-process) where OK. I create a Junit-Test to test my application and some thing is wrong with the port.

I have first succefully deploy the hello-process (from the jbpm.bpel-examples) wich is avialable as web service on the Jbosss-AS. Please correct me if this way trying to make the Hello-process as web service avialable is OK.

Running the test case for the invokerprocess has some isues:
the system can instanciate the invoker-process but calling the hello process failed although it's avialable as service.

What i'm expecting hier when i call the invoker-process is to see an instanciation of this and the helloWorld process so that i can see the execution of the invoker- HelloWorld process take respectively 50 ms and 30 ms (for example).

To my configuration:
JBoss AS-4.0.3-SP1, jbpm-3.0.3, jbpm-bpel-1.0-alpha4, mysql

The Error:

Buildfile: C:\OrdnerHyrarchie\MyCourses\Diplomarbeit\KOM\jBPM\Engine\jbpm-bpel-1.0-alpha4\doc\examples\invoker\build.xml
compile-test:
run-test:
 [junit] Testsuite: org.jbpm.bpel.tutorial.invoker.InvokerTest
 [junit] Tests run: 1, Failures: 0, Errors: 1, Time elapsed: 63,662 sec
 [junit] ------------- Standard Output ---------------
 [junit] 12:01:41,305 DEBUG SecurityAssociation : Using ThreadLocal: false
 [junit] 12:02:42,023 ERROR PortProxy : Port error
 [junit] java.net.SocketTimeoutException: Read timed out
 [junit] at java.net.SocketInputStream.socketRead0(Native Method)
 [junit] at java.net.SocketInputStream.read(SocketInputStream.java:129)
 [junit] at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
 [junit] at java.io.BufferedInputStream.read(BufferedInputStream.java:235)
 [junit] at org.jboss.axis.transport.http.HTTPSender.readHeadersFromSocket(HTTPSender.java:571)
 [junit] at org.jboss.axis.transport.http.HTTPSender.invoke(HTTPSender.java:135)
 [junit] at org.jboss.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:73)
 [junit] at org.jboss.axis.SimpleChain.doVisiting(SimpleChain.java:160)
 [junit] at org.jboss.axis.SimpleChain.invoke(SimpleChain.java:123)
 [junit] at org.jboss.webservice.client.ClientEngine.invoke(ClientEngine.java:128)
 [junit] at org.jboss.axis.client.Call.invokeEngine(Call.java:3079)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:3064)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:2652)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:2561)
 [junit] at org.jboss.axis.client.Call.invokeInternal(Call.java:1982)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:1920)
 [junit] at org.jboss.webservice.client.CallImpl.invoke(CallImpl.java:265)
 [junit] at org.jboss.axis.client.AxisClientProxy.invokeSEIMethod(AxisClientProxy.java:286)
 [junit] at org.jboss.webservice.client.PortProxy.invoke(PortProxy.java:177)
 [junit] at $Proxy3.callHelloProcess(Unknown Source)
 [junit] at org.jbpm.bpel.tutorial.invoker.InvokerTest.testCallHelloProcess(InvokerTest.java:32)
 [junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 [junit] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 [junit] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 [junit] at java.lang.reflect.Method.invoke(Method.java:585)
 [junit] at junit.framework.TestCase.runTest(TestCase.java:154)
 [junit] at junit.framework.TestCase.runBare(TestCase.java:127)
 [junit] at junit.framework.TestResult$1.protect(TestResult.java:106)
 [junit] at junit.framework.TestResult.runProtected(TestResult.java:124)
 [junit] at junit.framework.TestResult.run(TestResult.java:109)
 [junit] at junit.framework.TestCase.run(TestCase.java:118)
 [junit] at junit.framework.TestSuite.runTest(TestSuite.java:208)
 [junit] at junit.framework.TestSuite.run(TestSuite.java:203)
 [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:297)
 [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeInVM(JUnitTask.java:1072)
 [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:682)
 [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeOrQueue(JUnitTask.java:1434)
 [junit] at org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:632)
 [junit] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
 [junit] at org.apache.tools.ant.Task.perform(Task.java:364)
 [junit] at org.apache.tools.ant.Target.execute(Target.java:341)
 [junit] at org.apache.tools.ant.Target.performTasks(Target.java:369)
 [junit] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
 [junit] at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
 [junit] at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
 [junit] at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
 [junit] at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
 [junit] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
 [junit] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
 [junit] ------------- ---------------- ---------------
 [junit] Testcase: testCallHelloProcess(org.jbpm.bpel.tutorial.invoker.InvokerTest): Caused an ERROR
 [junit] null
 [junit] java.lang.reflect.UndeclaredThrowableException
 [junit] at $Proxy3.callHelloProcess(Unknown Source)
 [junit] at org.jbpm.bpel.tutorial.invoker.InvokerTest.testCallHelloProcess(InvokerTest.java:32)
 [junit] at org.eclipse.ant.internal.ui.antsupport.EclipseDefaultExecutor.executeTargets(EclipseDefaultExecutor.java:32)
 [junit] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunner.java:423)
 [junit] at org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRunner.java:137)
 [junit] Caused by: java.net.SocketTimeoutException: Read timed out
 [junit] at java.net.SocketInputStream.socketRead0(Native Method)
 [junit] at java.net.SocketInputStream.read(SocketInputStream.java:129)
 [junit] at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
 [junit] at java.io.BufferedInputStream.read(BufferedInputStream.java:235)
 [junit] at org.jboss.axis.transport.http.HTTPSender.readHeadersFromSocket(HTTPSender.java:571)
 [junit] at org.jboss.axis.transport.http.HTTPSender.invoke(HTTPSender.java:135)
 [junit] at org.jboss.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:73)
 [junit] at org.jboss.axis.SimpleChain.doVisiting(SimpleChain.java:160)
 [junit] at org.jboss.axis.SimpleChain.invoke(SimpleChain.java:123)
 [junit] at org.jboss.webservice.client.ClientEngine.invoke(ClientEngine.java:128)
 [junit] at org.jboss.axis.client.Call.invokeEngine(Call.java:3079)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:3064)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:2652)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:2561)
 [junit] at org.jboss.axis.client.Call.invokeInternal(Call.java:1982)
 [junit] at org.jboss.axis.client.Call.invoke(Call.java:1920)
 [junit] at org.jboss.webservice.client.CallImpl.invoke(CallImpl.java:265)
 [junit] at org.jboss.axis.client.AxisClientProxy.invokeSEIMethod(AxisClientProxy.java:286)
 [junit] at org.jboss.webservice.client.PortProxy.invoke(PortProxy.java:177)
 [junit] ... 30 more
 [junit] Test org.jbpm.bpel.tutorial.invoker.InvokerTest FAILED
BUILD SUCCESSFUL
Total time: 1 minute 6 seconds

and my files:

invoker.wsdl:
<?xml version="1.0" encoding="UTF-8"?>
<definitions targetNamespace="http://jbpm.org/examples/invoker"
xmlns:tns="http://jbpm.org/examples/invoker"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:plt="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xsi:schemaLocation="http://schemas.xmlsoap.org/wsdl/
 http://schemas.xmlsoap.org/wsdl/
 http://schemas.xmlsoap.org/ws/2003/05/partner-link/
 http://schemas.xmlsoap.org/ws/2003/05/partner-link/">
 <plt:partnerLinkType name="greeterPLT">
 <plt:role name="greeter">
 <plt:portType name="tns:invokerPT"/>
 </plt:role>
 </plt:partnerLinkType>
 <message name="forwardNameMessage">
 <part name="forwardName" type="xsd:string"/>
 </message>
 <message name="forwardGreetingMessage">
 <part name="forwardGreeting" type="xsd:string"/>
 </message>
 <portType name="invokerPT">
 <operation name="callHelloProcess">
 <input message="tns:forwardNameMessage"/>
 <output message="tns:forwardGreetingMessage"/>
 </operation>
 </portType>
</definitions>

 invoker.bpel:
<?xml version="1.0" encoding="UTF-8"?>
<process name="invoker"
targetNamespace="http://jbpm.org/examples/invoker"
xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:tns="http://jbpm.org/examples/simpleServiceInvoker"
xmlns:bpel="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:invokerns="http://jbpm.org/examples/invoker"
xmlns:hellons="http://jbpm.org/examples/hello"
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/">
 <partnerLinks>
 <partnerLink name="clientProcess" partnerLinkType="invokerns:greeterPLT" myRole="greeter"/>
 <partnerLink name="processService" partnerLinkType="hellons:helloPLT" partnerRole="service"/>
 </partnerLinks>
 <!-- The variable part helps to hold, copy, store the message exchanged between the Partners -->
 <variables>
 <variable name="inputProcess" messageType="invokerns:forwardNameMessage"/>
 <variable name="outputProcess" messageType="invokerns:forwardGreetingMessage"/>
 <variable name="inputService" messageType="hellons:nameMessage"/>
 <variable name="outputService" messageType="hellons:greetingMessage"/>
 </variables>
 <sequence name="ReceiveInvokeReply">
 <!--After the instance of this process receives a message this will be put in the inputProcess Container and the invoke-activity will take place. -->
 <receive name="ReceiveNameStringFROMClient" partnerLink="clientProcess" portType="invokerns:invokerPT"
 operation="callHelloProcess" variable="inputProcess" createInstance="yes"/>
 <assign name="forwardNameMessageTONameMessage">
 <copy>
 <from variable="inputProcess" part="forwardName"/>
 <to variable="inputService" part="name"/>
 </copy>
 </assign>
 <!-- The invoke activity will take place. The result of the invokation will then be store in the variable outputService-->
 <invoke name="InvokeHelloProcess" partnerLink="processService" portType="hellons:helloPT"
 operation="sayHello" inputVariable="inputService" outputVariable="outputService"/>
 <assign name="returnCopy">
 <copy>
 <from variable="outputService" part="greeting"/>
 <to variable="outputProcess" part="forwardGreeting"/>
 </copy>
 </assign>
 <reply name="ForwardHelloProcessResponse" partnerLink="clientProcess" portType="invokerns:invokerPT"
 operation="callHelloProcess" variable="outputProcess"/>
 </sequence>
</process>

 hello.wsdl:
<?xml version="1.0" encoding="UTF-8"?>
<definitions
xmlns:tns="http://jbpm.org/examples/hello"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:plt="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://schemas.xmlsoap.org/wsdl/"
argetNamespace="http://jbpm.org/examples/hello"
xsi:schemaLocation="http://schemas.xmlsoap.org/wsdl/
 http://schemas.xmlsoap.org/wsdl/
 http://schemas.xmlsoap.org/ws/2003/05/partner-link/
 http://schemas.xmlsoap.org/ws/2003/05/partner-link/">
 <message name="nameMessage">
 <part name="name" type="xsd:string"/>
 </message>
 <message name="greetingMessage">
 <part name="greeting" type="xsd:string"/>
 </message>
 <portType name="helloPT">
 <operation name="sayHello">
 <input message="tns:nameMessage"/>
 <output message="tns:greetingMessage"/>
 </operation>
 </portType>
 <!-- characterizes the relationship between the process and its caller -->
 <plt:partnerLinkType name="helloPLT">
 <plt:role name="service">
 <plt:portType name="tns:helloPT"/>
 </plt:role>
 </plt:partnerLinkType>
</definitions>

 jboss-client.xml:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE jboss-client PUBLIC "-//JBoss//DTD Application Client 4.0//EN"
 "http://www.jboss.org/j2ee/dtd/jboss-client_4_0.dtd">
<jboss-client>
 <!-- JNDI name bound to the client's environment context -->
 <jndi-name>invoker-client</jndi-name>
 <service-ref>
 <!-- the service-ref element to configure -->
 <service-ref-name>service/Invoker</service-ref-name>
 <!-- published WSDL file -->
<wsdl-override>http://localhost:8080/invoker/invoker?wsdl</wsdl-override>
 </service-ref>
</jboss-client>

 webservices.xml

<?xml version="1.0" encoding="UTF-8"?>
<webservices version="1.1" xmlns="http://java.sun.com/xml/ns/j2ee"
 xmlns:impl="http://www.jbpm.org/examples/invoker"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
 http://java.sun.com/xml/ns/j2ee/j2ee_web_services_1_1.xsd">
 <webservice-description>

 <!-- descriptive name for the service -->
 <webservice-description-name>Invoker Service</webservice-description-name>
 <!-- WSDL service file -->
 <wsdl-file>WEB-INF/wsdl/service.wsdl</wsdl-file>
 <!-- Java<->XML mapping file -->
 <jaxrpc-mapping-file>WEB-INF/jaxrpc-mapping.xml</jaxrpc-mapping-file>

 <port-component>
 <!-- logical name for the port (unique within the module) -->
 <port-component-name>clientProcessPort</port-component-name>

 <!-- WSDL port element (in WSDL implementation file) -->
 <wsdl-port>impl:clientProcessPort</wsdl-port>


 <!-- service endpoint interface class (step 4.2) -->
 <service-endpoint-interface>
 org.jbpm.bpel.tutorial.invoker.InvokerPT
 </service-endpoint-interface>

 <!-- associated servlet (in web-app [web.xml] descriptor) -->
 <service-impl-bean>
 <servlet-link>invokerServlet</servlet-link>
 </service-impl-bean>
 <handler>

 <!-- logical name for the handler (unique within the module) -->
 <handler-name>invokerHandler</handler-name>
 <!-- handler class (in BPEL extension library) -->
 <handler-class>org.jbpm.bpel.service.messager.PortHandler</handler-class>
 <init-param>
 <description>name of the associated partner link which match to myRole </description>
 <param-name>portName</param-name>
 <param-value>clientProcess</param-value>
 </init-param>
 </handler>
 </port-component>
 </webservice-description>
</webservices>

 jboss-web.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE jboss-web PUBLIC "-//JBoss//DTD Web Application 2.4//EN"
 "http://www.jboss.org/j2ee/dtd/jboss-web_4_0.dtd">
<jboss-web>
 <resource-ref>
 <res-ref-name>jms/ConnectionFactory</res-ref-name>
 <jndi-name>java:ConnectionFactory</jndi-name>
 </resource-ref>
 <message-destination-ref>
<message-destination-ref-name>jms/clientProcessQueue</message-destination-ref-name>
 <jndi-name>queue/testQueueClientProcess</jndi-name>
 </message-destination-ref>
</jboss-web>

 bpel-application.xml

<?xml version="1.0" encoding="UTF-8"?>
<bpelApplication name="invoker" xmlns="http://jbpm.org/bpel"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://jbpm.org/bpel
 http://jbpm.org/bpel/bpel_application_1_0.xsd">
 <partnerLinks>
 <partnerLink name="clientProcess">
 <!-- name bound to the queue assigned to this partner link -->
 <myRole destination="jms/clientProcessQueue" />
 </partnerLink>

 <!-- WHEN DEPLOYING THE WEBAPPLICATION TO JBOSS THE PARTNERLINKREFERENCE PROCESSSERVICE CAUSE AN.
 WE NEED A PARTNERLINK ELEMENT ONLY FOR PARTNERLINK WHERE THE PROCESS HAS THE MYROLE -->
 <!--partnerLink name="processService"-->
 <!-- name bound to the queue assigned to this partner link -->
 <!--myRole destination="jms/processServiceQueue" />
 </partnerLink-->
 </partnerLinks>
</bpelApplication>


 InvokerTest.java
package org.jbpm.bpel.tutorial.invoker;

import java.util.Properties;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import junit.framework.TestCase;

public class InvokerTest extends TestCase {

 private InvokerPT greeter;

 public InvokerTest(String forwardName) {
 super(forwardName);
 }

 protected void setUp() throws Exception {
 InitialContext ctx = getInitialContext();
 // JNDI name bound to the service interface (in application-client.xml)
 String serviceRefName = "service/Invoker";
 // lookup the service interface in the environment context
 InvokerService service = (InvokerService) ctx.lookup("java:comp/env/" + serviceRefName);
 // obtain the dynamic proxy for the web service port
 greeter = service.getClientProcessPort();
 }

 public void testCallHelloProcess() throws Exception {
 String forwardName = "Popeye";
 String forwardGreeting = greeter.callHelloProcess(forwardName);
 assertEquals("Hello, Popeye!", forwardGreeting);
 }

 protected InitialContext getInitialContext() throws NamingException {
 // JNDI name bound to the client's environment context (in jboss-client.xml)
 String envContextName = "invoker-client";
 // prepare the enviroment
 Properties env = new Properties();
 env.setProperty("j2ee.clientName", envContextName);
 // the properties in env *and* jndi.properties are placed in the context's environment
 return new InitialContext(env);
 }
}

Some one has any idee what is wrong in my Junit Test ? Please your urgently help will be very appreciated.

Best regards

Bertrand Njipwo

1. Re: Web Service invocation inside a BPEL-Process failed.

bertrand.njiipwo Jul 7, 2006 1:09 AM (in response to bertrand.njiipwo)

Hello community,

i realise this issue is close related to Web Services that why i will move this thread in the JBossWS forum. Any one has different opinion ?

Bertrand
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2. Re: Web Service invocation inside a BPEL-Process failed.

bertrand.njiipwo Jul 7, 2006 1:32 AM (in response to bertrand.njiipwo)

I have opened a new thread in the JBossWS forum under

http://www.jboss.com/index.html?module=bb&op=viewtopic&t=86326

just hope that it isn't the wrong one.

Thanks

Bertrand
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3. Re: Web Service invocation inside a BPEL-Process failed.

ncapito Jul 7, 2006 7:12 AM (in response to bertrand.njiipwo)

Have you tried adding in the locations of your other partner links in the bpelapplication.xml!? It could be that the process does not know how to deliver to you ws because it does no know its location. When i get back to my office i will send you an example of a service catalog.
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4. Re: Web Service invocation inside a BPEL-Process failed.

ncapito Jul 7, 2006 4:41 PM (in response to bertrand.njiipwo)

Here is the example:

<bpelApplication name="ExampleWorkFlow" xmlns="http://jbpm.org/bpel"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://jbpm.org/bpel
 http://jbpm.org/bpel/bpel_application_1_0.xsd">
 <partnerLinks>
 <partnerLink name="WorkFlowCaller">
 <myRole destination="jms/WorkFlowCallerQueue" />
 </partnerLink>
 <partnerLink name="NicksTestServiceCaller">
 <partnerRole>
 <wsa:EndpointReference xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing">
 <wsa:Address>
 USE_ACTUAL_URI_FROM_CATALOG
 </wsa:Address>
 <wsa:ServiceName xmlns:ses="http://test">
 ses:NicksTestService_wsdl
 </wsa:ServiceName>
 </wsa:EndpointReference>
 </partnerRole>
 </partnerLink>
 </partnerLinks>
 <serviceCatalogs>
 <definitionCatalog>
 <definition location="http://127.0.0.1:8080/NicksWSJar/NicksTestService?wsdl"/>
 </definitionCatalog>
 </serviceCatalogs>
</bpelApplication>

The above is a bpel-application.xml using service catalogs.

Let me know if you have any questions.

5. Re: Web Service invocation inside a BPEL-Process failed.

bertrand.njiipwo Jul 8, 2006 10:24 AM (in response to bertrand.njiipwo)

Hi @all,

ncapito thanks for your answer. After analyse i think this may be the reason why my application doesn't work. I'm realising that i haven't specify where to access my hello web service.

I'll will try this solution, test again the application and give feedback.

Thanks again

Bertrand
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