BPM Process Webservices in clustered engine

Hi all!
I've an ALBPM engine deployed on a clustered server (2 managed and 1 admin) with several processes exposed as web services.
My ALSB invoces the processes using a business service that have the endpoints of the two nodes of the cluster, configured to use Round-Robin algorithm:
- http:// myserver:9011/myengine/ws/myprocess
- http:// myserver:9012/myengine/ws/myprocess
in a proxy service on service bus I use the BS to get the BPM session, using startSession, and then to invoke the process creation. It works but I get always a warning that indicates "invalid session".
Analyzing the problems it came out that the BS poits to one node (let's suppose the first one) for the startSession and then to the 2nd for the creation of the instance (due to round-robin).
ALSB gets an invalid session warning just because the session itself was created on the 1st node. At this point ALSB changes node (from 2nd to 1st) in order to try all of the node configured and of course it works perfectly.
My customer is actually receiving tons of unwanted warnings.
Anyone has suggestion to avoid this?
Of course I've tried to set the algorithm to "none", letting ALSB to use always the 1st node, and the 2nd only if the first fails. But this would mean that all of the work load will go on one node. In addiction if a node fails, there is no chance to continue the process (create instance or send notifications) because the session ID is not useful on the other node.
(hope that is understandable)
Thanks in advance.

Hi,
Which BPM version are you using?
If your version is 6.0 or greater, then I would recommend using WS-Security in your process web service.
Once you enable the security you will see that the WSDL changes, and the startSession disappears. In this way, you will be able to perform the request by using a single invocation.
By the way, Process Web Service without security was kept as a "backward compatibility" but it is deprecated. (we recommend not to use it)
Hope this helps,
Ariel

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Hi,
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Hi. I have a web service and uses an array as parameter.
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<xs:complexType name="TrackPCPDOTransType">
<xs:sequence>
<xs:element name=... />
<xs:element name="atributos" nillable="true" type="ns2:AtributosType" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:element name="TrackPCPDOTrans" type="TrackPCPDOTransType"/>
</xs:schema>
<xs:schema targetNamespace=... >
<xs:complexType name="AtributosType">
<xs:sequence>
<xs:element name="key" nillable="true" type="xs:string"/>
<xs:element name="value" nillable="true" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:element name="Atributos" type="AtributosType"/>
</xs:schema>
In the service task activity, I pass the params to the web service:
"descripcion" --> TrackPCPDOTrans.atributos[1].key
DataObject.descripcion --> TrackPCPDOTrans.atributos[1].value
"estado" --> TrackPCPDOTrans.atributos[2].key
DataObject.estado --> TrackPCPDOTrans.atributos[2].value
"justificacion" --> TrackPCPDOTrans.atributos[3].key
DataObject.justificacion --> TrackPCPDOTrans.atributos[3].value
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<dataState>
<dataObject name="FaultMessage" isBusinessIndicator="false">
<value> oracle.bpm.bpmn.engine.model.runtime.microinstructions.TrappableException: faultName: {{http://schemas.xmlsoap.org/ws/2003/03/business-process/}selectionFailure} messageType: {{http://schemas.oracle.com/bpel/extension}RuntimeFaultMessage} cause: {faultName: {{http://schemas.xmlsoap.org/ws/2003/03/business-process/}selectionFailure} messageType: {{http://schemas.oracle.com/bpel/extension}RuntimeFaultMessage} parts: {{ summary=<summary>empty expression result. The expression bpmn:getDataInput('trackPCPDOTrans')/ns:atributos[2]/ns1:key is empty. An attempt to read or copy data referenced or computed by the XPath expression either had invalid data, according to the XML schema, or did not contain certain optional data. Ensure that the variable or expression result named in the error message is not empty. Enable XML schema validation of related data elements to ensure the run-time data is valid. </summary>} } </value>
</dataObject>
</dataState>
</auditQueryPayload>
What is wrong?
Thanks for your help.

I did the assignment in XPATH:
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<arrayAtributosTracking>
<key xmlns="http://xmlns.oracle.com/bpm/bpmobject/DataTypes/Atributos">','descripcion','</key>
<value xmlns="http://xmlns.oracle.com/bpm/bpmobject/DataTypes/Atributos">',bpmn:getDataObject('DataObjectDDSAO')/ns:descripcion,'</value>
</arrayAtributosTracking>
<arrayAtributosTracking>
<key xmlns="http://xmlns.oracle.com/bpm/bpmobject/DataTypes/Atributos">','estado','</key>
<value xmlns="http://xmlns.oracle.com/bpm/bpmobject/DataTypes/Atributos">',bpmn:getDataObject('DataObjectDDSAO')/ns:estado,'</value>
</arrayAtributosTracking>
</AtributosTracking>'))
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<?xml version="1.0" encoding="UTF-8"?>
<?bpmo version="11.1.1.6.0.15.53" build="15.53" fullName="DataTypes.AtributosTracking" modifiers="268435456"?>
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<xs:import namespace="http://xmlns.oracle.com/bpm/bpmobject/DataTypes/Atributos" schemaLocation="Atributos.xsd"/>
<xs:complexType name="AtributosTrackingType">
<xs:sequence>
<xs:element name="arrayAtributosTracking" nillable="true" type="ns1:AtributosType" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:element name="AtributosTracking" type="AtributosTrackingType"/>
Atributos.xsd:
<?xml version="1.0" encoding="UTF-8"?>
<?bpmo version="11.1.1.6.0.15.53" build="15.53" fullName="DataTypes.Atributos" modifiers="0"?>
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<xs:complexType name="AtributosType">
<xs:sequence>
<xs:element name="key" nillable="true" type="xs:string"/>
<xs:element name="value" nillable="true" type="xs:string"/>
</xs:sequence>
</xs:complexType>
<xs:element name="Atributos" type="AtributosType"/>
</xs:schema>
But a new error occurrs when I run the BPM process:
<auditQueryPayload auditId="8724004" ciKey="380025">
<dataState>
<dataObject name="FaultMessage" isBusinessIndicator="false">
<value> oracle.bpm.bpmn.engine.model.runtime.microinstructions.TrappableException:
faultName: {{http://schemas.xmlsoap.org/ws/2003/03/business-process/}selectionFailure}
messageType: {{http://schemas.oracle.com/bpel/extension}RuntimeFaultMessage}
cause: {faultName: {{http://schemas.xmlsoap.org/ws/2003/03/business-process/}selectionFailure}
messageType: {{http://schemas.oracle.com/bpel/extension}RuntimeFaultMessage}
parts: {{ summary=<summary>XPath query string returns multiple nodes.
The assign activity part and query bpmn:getDataObject('AtributosTracking')/ns:atributosTracking are returning multiple nodes.
The assign activity part and query named in the error message returned multiple nodes. It should return single node.
According to BPEL4WS specification 1.1 section 14.3, the assign activity part and query named in the error message should
not return multiple nodes. Verify the part and xpath query named in the error message at line number -1 in the BPEL source. </summary>} } </value>
</dataObject>
</dataState>
</auditQueryPayload>
Any idea?
Thanks
Edited by: César on 10/01/2013 11:02 AM

BPM process interactive activity(JSP) - external webservice method interac

I am using Oracle BPM studio 10.3.1.0.
I have one external web service published on glassfish application server, I have introspected it in my BPM process using its WSDL.
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Thanks & Regards
Ashish

Hy Ashih
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ii. Use Process Webservice to execute particular task.
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BR,
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How to access a method in webservice catalogued component in BPM Process

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Ashish

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Hi Arafat,
Thanks for replying. Yes i have completed the output mapping. Input parameters i need for this service are :
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ca_comments
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<modelObject class="com.sap.demo.wdpoc.wd.models.model.NewOperation"><attribute name="In" value="KK"/><attribute name="Name" value="133"/><attribute name="Age" value="dad"/><attribute name="Designation" value="12124"/><attribute name="Userid" value="null"/></modelObject>
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<modelObject class="com.sap.demo.wdpoc.wd.models.model.NewOperation"><attribute name="In" value="KK"/><attribute name="Name" value="133"/><attribute name="Age" value="dad"/><attribute name="Designation" value="12124"/><attribute name="Userid" value="null"/></modelObject>
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This question is not answered but I am marking it answered because I have to post more.
Sorry
-Ashwani

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I have developed simple BPM process through Oracle BPM studio 10.3.1.0.I then followed steps below
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3. Run the project. This starts the Process Execution Engine.
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5. Create a second ALSB External Resource for registration.
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<con:location>
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<con:path>response-pipeline</con:path>
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I also tried to debug through "Oracle Workshop for WebLogic Version 10.3 " . But I am not getting enough details as to why this is failing.
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Thanks
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Edited by: user8950019 on Feb 1, 2010 4:11 AM

Hi,
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<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:exp="http://bea.com/albpm/ExpenseManagement/ExpenseReport">
<soapenv:Header/>
<soapenv:Body>
<exp:startSession>
<password>Employee</password>
<user>Employee</user>
</exp:startSession>
</soapenv:Body>
</soapenv:Envelope>
Response i Get is:-
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<ns1:startSessionResponse xmlns:ns1="http://bea.com/albpm/ExpenseManagement/ExpenseReport">
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</ns1:startSessionResponse>
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</soapenv:Envelope
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<soapenv:Header/>
<soapenv:Body>
<exp:expenseReport>
<sessionId>3782hecq1s85h</sessionId>
<reportArg>

<comments>yes</comments>

<costCenter>jaa</costCenter>

<description>aa</description>

<isApproved>y</isApproved>

<items>

<elements>

<amount>700</amount>

<date>?</date>

<description>?</description>

<receiptChecked>?</receiptChecked>
</elements>
</items>

<reviewedBy>?</reviewedBy>

<submitDate>?</submitDate>

<submittedBy>?</submittedBy>

<total>?</total>
</reportArg>
</exp:expenseReport>
</soapenv:Body>
</soapenv:Envelope>
Response coming is :-
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<soapenv:Fault>
<faultcode>soapenv:Server.userException</faultcode>
<faultstring>fuego.lang.ComponentExecutionException: The method 'expenseReport' from class 'xobject.ExpenseReportWebServiceImpl.ExpenseReportServiceInternalAlbpmListenerImpl' could not be successfully executed.</faultstring>
<detail>
<ns1:stackTrace xmlns:ns1="http://xml.apache.org/axis/">fuego.lang.ComponentExecutionException: The method 'expenseReport' from class 'xobject.ExpenseReportWebServiceImpl.ExpenseReportServiceInternalAlbpmListenerImpl' could not be successfully executed.
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     at fuego.component.ExecutionThread.processMessage(ExecutionThread.java:780)
     at fuego.component.ExecutionThread.processBatch(ExecutionThread.java:755)
     at fuego.component.ExecutionThread.doProcessBatch(ExecutionThread.java:142)
     at fuego.component.ExecutionThread.doProcessBatch(ExecutionThread.java:134)
     at fuego.fengine.FEngineProcessBean.processBatch(FEngineProcessBean.java:244)
     at fuego.fengine.FEngineWebServiceExecutor$WebServiceExecutorPrincipal.processBatch(FEngineWebServiceExecutor.java:168)
     at fuego.component.ExecutionThread.work(ExecutionThread.java:839)
     at fuego.component.ExecutionThread.run(ExecutionThread.java:408)
Caused by: java.lang.RuntimeException: java.lang.NumberFormatException: For input string: "jaa"
     at xobject.ExpenseReportWebServiceImpl.ExpenseReportServiceInternalAlbpmListenerImpl.expenseReport(ExpenseReportServiceInternalAlbpmListenerImpl.xcdl:36)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at fuego.lang.JavaClass.invokeMethod(JavaClass.java:1410)
     at fuego.lang.JavaObject.invoke(JavaObject.java:227)
     at fuego.lang.Invokeable.invokeImpl(Invokeable.java:234)
     ... 21 more
Caused by: java.lang.NumberFormatException: For input string: "jaa"
     at java.lang.NumberFormatException.forInputString(Unknown Source)
     at java.lang.Integer.parseInt(Unknown Source)
     at java.lang.Integer.valueOf(Unknown Source)
     at fuego.util.Conversion.tojava_lang_Integer(Conversion.java:934)
     at fuego.xobject.runtime.ConversionUtilities.fromString(ConversionUtilities.java:56)
     at fuegoblock.xml.XmlElementDeserializer.deserializeElement(XmlElementDeserializer.java:175)
     at fuegoblock.xml.XmlElementDeserializer.deserialize(XmlElementDeserializer.java:81)
     at fuegoblock.xml.DynamicXml.createObjectFrom(DynamicXml.java:160)
     at fuegoblock.xml.DynamicXml.createObjectFrom(DynamicXml.java:119)
     at xobject.ExpenseReportWebServiceImpl.ExpenseReportServiceInternalAlbpmListenerImpl.expenseReport(ExpenseReportServiceInternalAlbpmListenerImpl.xcdl:17)
     ... 28 more</ns1:stackTrace>
<ns2:hostname xmlns:ns2="http://xml.apache.org/axis/">D-113014550</ns2:hostname>
</detail>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope>
can anyone explain why this error is coming.?
Edited by: user8937128 on May 19, 2010 6:58 AM

BPM Process trigger - giving error

Hi ,
I have created the WSDL file to trigger start process of BPM.
When i am executing the webservice from WSNAVIGATOR am getting the below error:-
process()
[EXCEPTION]
com.sap.engine.interfaces.webservices.runtime.RuntimeProcessException: Technical difficulties were experienced during process execution.
at com.sap.glx.adapter.app.ucon.UnifiedConnectivityAdapter.invokeProvisionedMethod(UnifiedConnectivityAdapter.java:1026)
at com.sap.glx.adapter.app.ucon.wsprov.GalaxyImplementationContainer.invokeMethod(GalaxyImplementationContainer.java:104)
at com.sap.engine.services.webservices.espbase.server.runtime.RuntimeProcessingEnvironment.process0(RuntimeProcessingEnvironment.java:730)
at
i have created one more wsdl file and running through the WSNAVIGATOR getting below error:-
Server Exception: Could not retrieve SDO HelperContext for service_id XXXX//STARTEVENT; nested exception is:
com.sap.engine.services.webservices.jaxrpc.exceptions.SOAPFaultException: Could not retrieve SDO HelperContext for service_id XXXXX/STARTEVENT
[EXCEPTION]
java.rmi.ServerException: Server Exception: Could not retrieve SDO HelperContext for service_id XXXX/STARTEVENT; nested exception is
Please help me on this.
Thanks in advance

Manish,
Thanks for your information.
I have already tried both ways, including the mesage start trigger with WSDL and default service.(No luck on both scenarios, earlier it's was working fine perfectly).
We made some changes to WSDL, adding Few element as per our business logic.
Application it's not triggering the process.
Thanks
Praneeth

How to start BPM process WSDL from WDA

Hello,
I need to start BPM Process from SRM ECC with WDA; i have been through this link ;
http://forums.sdn.sap.com/thread.jspa?threadID=1643425
also followed the pdf named 'Triggering NetWeaver BPM Process from ABAP' provided from SAP but still stuck on some issues;
- I have a WSDL in order to start BPM process and works fine as i successfully call it from EP Java AS with WDJ..
- What i need to do is to trigg it from SRM Screens so i need to call this WSD from ECC, so;
When i try to create a consumer proxy using external wsdl option, after putting in WSDL Url it throws an error;
Exception occurred in communication framework:Error in HTTP Framework:405 Method Not Allowed http://xxx.local:50000/bpm/de
mosapcom/dccategoryappbpm/StartCatAppSI
Exception of class CX_SLIB_HTTP_FAIL
And this is error from BPM Logs for the same action;
process()
[EXCEPTION]
com.sap.engine.interfaces.webservices.runtime.RuntimeProcessException: com.sap.engine.services.webservices.espbase.server.additions.wsa.WSAddressingException: com.sap.SOA.wsr.030104 - Expected request method POST. Found GET.
at com.sap.engine.services.webservices.espbase.server.additions.SOAPHTTPTransportBinding.getAction(SOAPHTTPTransportBinding.java:581)
at com.sap.engine.services.webservices.espbase.server.runtime.RuntimeProcessingEnvironment.overwriteConfiguration(RuntimeProcessingEnvironment.java:894)
at com.sap.engine.services.webservices.espbase.server.runtime.RuntimeProcessingEnvironment.preProcess(RuntimeProcessingEnvironment.java:469)
Also i found this link : http://wiki.sdn.sap.com/wiki/display/TechTSG/(WSR)Problems-P06/
But no help so far,
So, is there anyone faced similar or the same issue? Any suggestion will be appreciated.
Regards,
Yasin

Hi soujanya,
BPM server is not open to the internet but only intranet, so i will copy the WSDL code for you,
will be glad if you can help;
- <wsdl:definitions xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://www.koczer.com/StartCatAppSI/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="StartCatAppSI" targetNamespace="http://www.koczer.com/StartCatAppSI/">
- <wsdl:types>
- <xsd:schema targetNamespace="http://www.koczer.com/StartCatAppSI/">
- <xsd:complexType name="DetailsType">
- <xsd:sequence>
<xsd:element name="Category_ID" type="xsd:int" />
<xsd:element name="Category_Text" type="xsd:string" />
<xsd:element name="User" type="xsd:string" />
<xsd:element name="Manager" type="xsd:string" />
</xsd:sequence>
</xsd:complexType>
- <xsd:element name="NewOperation">
- <xsd:complexType>
- <xsd:sequence>
<xsd:element name="Details" type="tns:DetailsType" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
</wsdl:types>
- <wsdl:message name="NewOperationRequest">
<wsdl:part element="tns:NewOperation" name="parameters" />
</wsdl:message>
- <wsdl:portType name="StartCatAppSI">
- <wsdl:operation name="NewOperation">
<wsdl:input message="tns:NewOperationRequest" />
</wsdl:operation>
</wsdl:portType>
- <wsdl:binding name="StartCatAppSISOAP" type="tns:StartCatAppSI">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
- <wsdl:operation name="NewOperation">
<soap:operation soapAction="http://www.koczer.com/StartCatAppSI/NewOperation" />
- <wsdl:input>
<soap:body use="literal" />
</wsdl:input>
</wsdl:operation>
</wsdl:binding>
- <wsdl:service name="StartCatAppSI">
- <wsdl:port binding="tns:StartCatAppSISOAP" name="StartCatAppSISOAP">
<soap:address location="http://zerbpmts.koczer.local:50000/bpm/demosapcom/dccategoryappbpm/StartCatAppSI" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>

BPM Process Webservices in clustered engine

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