Complex object as parameter from BPEL PM to Web Service

Hello,
I'm having a problem with being able to invoke a method on my web service from BPEL PM. It's a 'create' method, so I'm sending a complex object as the input parameter of the method.
I'm encountering the same kind of problems I have at different stages in the project I'm on: SOA works really well as long as you don't use complex objects. As soon as you do, SimpleDeserializer exceptions seem to be thrown all over the place. In this case, the error I'm getting is:
<remoteFault xmlns="http://schemas.oracle.com/bpel/extension">
<part name="code">
<code>Server.userException</code>
</part>
<part name="summary">
<summary>when invoking endpointAddress 'http://covarm.tvu.ac.uk/validationEvent/services/validationEventSOAP', org.xml.sax.SAXException: SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize.</summary>
</part>
<part name="detail">
<detail>AxisFault faultCode: {http://xml.apache.org/axis/}Server.userException faultSubcode: faultString: org.xml.sax.SAXException: SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize. faultActor: faultNode: faultDetail: {http://xml.apache.org/axis/}stackTrace:org.xml.sax.SAXException: SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize. at org.apache.axis.encoding.ser.SimpleDeserializer.onStartChild(SimpleDeserializer.java:188) at org.apache.axis.encoding.DeserializationContextImpl.startElement(DeserializationContextImpl.java:893) at org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:200) at org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:684) at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:207) at org.apache.axis.message.RPCElement.getParams(RPCElement.java:265) at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:190) at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:276) at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71) at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:156) at org.apache.axis.SimpleChain.invoke(SimpleChain.java:126) at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:437) at org.apache.axis.server.AxisServer.invoke(AxisServer.java:316) at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:701) at javax.servlet.http.HttpServlet.service(HttpServlet.java:709) at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:335) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) 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.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.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:744) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:674) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:866) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Unknown Source)</detail>
</part>
</remoteFault>
The WSDL is at:
http://covarm.tvu.ac.uk/validationEvent/wsdl/validationEventSOAP.wsdl
I'm invoking the 'createEvent' method. I know the service works okay because I've tested it with Rational Software Architect and Eclipse's Web Services Explorer, and also with standalone code and JUnit tests.
The problem seems to be getting the mapping from BPEL PM to the Web Service. I'm sending the object as a message type that's defined in the WSDL of the service:
<xsd:element name="createEventRequest" type="tns:event" />
- <xsd:complexType name="event">
- <xsd:sequence>
<xsd:element name="event-detail" type="tns:event-detail" />
<xsd:element name="proposed-dates" type="tns:proposed-dates" />
<xsd:element name="panel" type="tns:panel" />
<xsd:element name="development-team" type="tns:development-team" />
<xsd:element name="minute" type="xsd:string" />
<xsd:element name="feedback-list" type="tns:feedback-list" />
</xsd:sequence>
</xsd:complexType>
Is this something that's
a) fixable?
b) workaroundable?
c) a known issue?
Thanks,
Dan

Before I start crying at my own impotence, how can I configure the bpel.xml file (for obtunnel_ when it looks like this?
<?xml version = '1.0' encoding = 'UTF-8'?>
<BPELSuitcase>
<BPELProcess id="RunValidationEvent" src="RunValidationEvent.bpel">
<partnerLinkBindings>
<partnerLinkBinding name="client">
<property name="wsdlLocation">RunValidationEvent.wsdl</property>
</partnerLinkBinding>
<partnerLinkBinding name="validationEvent">
<property name="wsdlLocation">validationEventSOAPRef.wsdl</property>
</partnerLinkBinding>
<partnerLinkBinding name="notification">
<property name="wsdlLocation">notificationSOAPRef.wsdl</property>
</partnerLinkBinding>
<partnerLinkBinding name="TaskManagerService">
<property name="wsdlLocation">TaskManagerService.wsdl</property>
<property name="wsdlRuntimeLocation">${domain_url}/TaskActionHandler/TaskManagerService.wsdl</property>
</partnerLinkBinding>
<partnerLinkBinding name="TaskRoutingService">
<property name="wsdlLocation">TaskRoutingService.wsdl</property>
<property name="wsdlRuntimeLocation">${domain_url}/TaskActionHandler/TaskRoutingService.wsdl</property>
</partnerLinkBinding>
<partnerLinkBinding name="TaskActionHandler">
<property name="wsdlLocation">TaskActionHandler.wsdl</property>
<property name="wsdlRuntimeLocation">${domain_url}/TaskActionHandler/TaskActionHandler?wsdl</property>
</partnerLinkBinding>
<partnerLinkBinding name="IdentityService">
<property name="wsdlLocation">LocalIdentityService.wsdl</property>
</partnerLinkBinding>
<partnerLinkBinding name="processParticipant">
<property name="wsdlLocation">processParticipantSOAPRef.wsdl</property>
</partnerLinkBinding>
</partnerLinkBindings>
<activationAgents>
<activationAgent className="oracle.tip.pc.services.hw.task.impl.TaskActivationAgent" partnerLink="TaskManagerService"/>
</activationAgents>
</BPELProcess>
</BPELSuitcase>
Or is it that I'm using local wsdl refs when I should be defining a partner likk in my web service wsdl?

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</part>
</bindingFault>

I think you from Sierra Atlantic and you using Beta 3. There was a bug in Beta 3 in using arrays, which got fixed in post Beta3. You got to wait till next release.

Calling a web service from BPEL using java web methods

Hello everyone,
I have an application my BPEL process should connect to. The application which is a web service needs to be called using pre defined web methods defined in java from my bpel process using Jdev 10g. Any suggestions in how I can go about doing that? Please I really need help

Hi there,
If you have defined already your partner links to the service you can use the BPEL API to invoke them from RMI. See this blog entry
http://technology.amis.nl/2006/06/08/oracle-bpel-pm-invoking-a-remote-bpel-service-from-java-using-rmi/
It'd be also good if you post the question on the bpel forum BPEL
Thanks,
JC

Parameter names change when generating web service from WSDL

Hi,
I have a problem with BEAs web services that I'm hoping someone can help me with.
I have a
WSDL file, and from that I want to generate a web service implementation and a
web service
client. In the WSDL file, I have a message defined like this:
<message name="someRequest">
<part xmlns:partns="http://www.w3.org/2001/XMLSchema" type="partns:base64Binary"
name="data"/>
</message>
I generate the server using the server using the wsdl2service Ant task, I implement
the necessary classes, and I deploy it. When I access the deployed web service,
the parameter name has changed, from "data" to "bytes". If I access the WSDL file
of the deployed web service, it says:
<message name="someRequest">
<part xmlns:partns="http://www.w3.org/2001/XMLSchema" type="partns:base64Binary"
name="bytes"/>
</message>
This happens for all parameters, string parameters are renamed to "string", base64Binary
parameters are renamed to "bytes", etc...
This poses a problem to me, because if I generate a web service client from the
original WSDL file, it will not be able to talk to my web service. Is there any
way of forcing a web service generated from a WSDL file to keep the parameter
names of the original WSDL file?
Any help in this is greatly appreciated.
Regards,
Petter

From a quick look of your WSDL, it seams that you are mixing document-literal-bare and document-literal-wrapped flavor of web services. WSA may be able to do a better job at working around this mixed flavors than JDeveloper.
If you have hand crafted this WSDL, I would recomend that you spend some time looking at the way WSDL are generated, with the java-first mode (or bottom-up), then author the WSDL you need for the final service.
Here are sample of bare-style :
<xsd:element name="getPupilAddressResponse" type="xsd:string"/>
<xsd:element name="getPupilAddressRequest" type="xsd:int"/>
Wrapped will looks like that:
<xsd:element name="getSENLevelResponse">
<xsd:complexType>
<xsd:sequence maxOccurs="1" minOccurs="1">
<xsd:element name="LevelDetails" type="tns:SENLevelRecord"/>
<xsd:element name="RecordCount" type="xsd:int">
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
Hope this helps,
Eric

Passing HTTP Headers from BPEL to a RESTFul service in SOA 11g PS2.

Hi All,
We have the following requirement.
We need to pass the following headers to RESTFul service.
x_invensys_wss_username = "Some UserName"
x_invensys_wss_password = "Some Password".
I tried to first pass username and password properties by following below post.
Attach Http headers in BPEL Process
Specifically below steps..
Hi,
If you are talking about how to invoke a secured webservice...please follow this...
After creating the reference for your secured webservice in your composite, right click on the composite and say configure web service policies...
Add the security policy named "oracle/wss_http_token_client_policy"
And also, for the reference, create two binding properties
1. oracle.webservices.auth.username
2. oracle.webservices.auth.password
For the above two properties, provide the appropriate values.....
Please test the same after making this changes and let me know....
Thanks,
Narsing Pumandla
======================================================
Somehow i don't see the headers getting added to the call.
The service i am calling don't really need these headers.But the URL we will be calling shortly for the real application need them.
Can someone let me know whether this SOA version supports this or not.?
If yes , Then what is the best way to solve this issue.[i.e Able to send hardcoded values and also user specified values.]
Thanks,
Sid.

I am using this URL : api.geonames.org/postalCodeSearch?postalcode=90110&username=siddhardha
I see below message in audit trail.Not sure why the headers are not visible.
Am i missing something which is very fundamental.?
<messages>
<Rest_InputVariable>
<part name="Input">
<Input>
<postalcode>90110</postalcode>
<username>Siddhardha</username>
</Input>
</part>
</Rest_InputVariable>
<Rest_OutputVariable>
<part name="geonames">
<geonames>
.....results.............
</geonames>
</part>
</Rest_OutputVariable>
</messages>
Edited by: Siddhardha M on Jul 19, 2012 5:44 AM

About map a bpel process to web service?

hi:
Which activity in bpel should be exposed as a service to invoker?I always think they are receive and onMessage.But,in oracle PM,it looks not so.In oracle PM a asyn process exposed two services,one init the instance(begin receive),one is calback.To my understanding,the callback service should implement by invoker,why not so?
thanks

Thanks for the quick reply.Actually the web service is already deployed on the server.What I want to do is use existing wsdl file of the deployed web service and invoke the method of the same using oracle PM.
If I remove element which uses apachesoap:Map type it just works fine also I am getting the complex object returned by the web service method.But when I try to set appDataDef which is of type apachesoap:Map(Axis conversion for java.util.Map and it uses namespace xmlns:apachesoap="http://xml.apache.org/xml-soap") I am getting the error.
Can you give me some direction to use this exising wsdl file to set map object or it is not possible.

Unique rollback in a BPEL process using web services

We are a cellular communication company using Oracle DB (10g) and Oracle Forms to run our business applications (customer care and the like). We have planned a system migration using the SOA approach with the latest release of Oracle BPEL Suite (business logic), Oracle ADF BC (presentation level), Oracle OAS (application server) and JDeveloper (application development IDE).
Within our current applications we have processes that perform several tasks (inserts, updates and/or deletes on the same DB) as part of one atomic DB transaction. Using the SOA approach we’ve deemed those tasks as being ‘services’ that we, let’s say for the sake of argument, could implement either as web services (so as to be published for reuse) or as stored procedures encapsulated via DB adapters (BPEL lexicon).
Our biggest challenge, and hence our question to the SOA world, is how to attain that same unique transaction. We understand that there is no one perfect approach, for the ‘solution’ depends on too many factors and choices; what we’d like to know are past experiences people had or, at best, what do people consider what the best practices in the industry are regarding this matter.
Approach A: all services are implemented as DB adapters (stored procedures and the like).
PROS: one single DB rollback should any service fail to execute properly and so undo all changes made so far.
CONS: highly coupled, non-visible components (via UDDI); impossibility to manage, control and audit (via WS Manager) components; weak/poor SOA Governance.
Approach B: all services are implemented as web services.
PROS: loosely coupled, self-contained, and web accessible visible components (via UDDI) besides the ease to manage, control and audit (via WS Manager); strong SOA Governance.
CONS: since each web service is a ‘different’ transaction with its own ‘commit’, a unique rollback transaction for the whole process will not be possible should a WS fail, for previous WSs will have already committed their data changes before doing the rollback.
Approach C: services implemented as a mix of web services and DB Adapters.
PROS: those of Approach B for web services.
CONS: those of Approach A (DB adapters) + those of Approach B (web services).
<hr />
So, the 64,000 dollar question is how to attain a single transaction when you have web services as part of your process? Do we need to ’build/create’ a schema/functionality similar to the ‘DB-undo-segment’ in order to obtain a single rollback transaction for the whole process or does the BPEL COMPENSATE delivers this functionality somehow?
Are we not seeing the obvious? Are we not seeing the forest because we’re looking at a tree? Please keep in mind that we are using Oracle BPEL.
Thanks a bunch,
--Sergio

Hi Marinus,
you are absolutely right and not missing anything. OWSM does not free you from taking additional measures to block direct interaction with the unsecure WebService from not "authorized" clients. You must restrict the http response to the OWSM host only (either in the Apache or the OC4J configuration). See the related documentation.
--olaf

Getting the Request Object in the EJB published as a Web Service

Hi experts,
I have a Portal Service that call a BAPI in a back-end system with the Connector Framework. I have a Portal Component that calls the Portal Service, passing the Locale (request.getLocale()) and the User (request.getUser()) object. It's work fine!
I need to call the Portal Service by an EJB that is published as a Web Service. The connection between the EJB and Portal Service is ok, but I don't know how to get the Locale and the User object in the EJB to pass to the Portal Service.
Is possible to get the request object from the HTTP SOAP Request?
Thanks,
Gustavo

Hey Alice!
The Feature Hashing module is actually a wrapper around
Vowpal Wabbit's implementation of the murmurhash. Thus, it takes text in, and produces 2^N new features based on the text, where N is the bitsize specified in the module. These features (and not the original text!) should be used during model training.
The Learner will then keep track of these features behind the scenes.
When you publish your web service and these features are recomputed for new input text (same N), they are used as the features for scoring.
Does that make sense?
Regards,
AK

How to Pass BAPIPWD from Export workflow in Web Services Connector MA

Hello,
I need to export users from FIM to SAP using web services connector. I have created Export Work flow and added the values like user name , first name, last name and etc. I couldnt set the value for password because the data type is BAPIPWD. Could you please
tell me how to create a user in SAP from FIM using Export Workflow and how to pass the password parameter.
Thanks,
Nallasivan

Hi you can add parameters to your FPM application and launch the aplication from POWL action.
Insder FPM, using FPM parameters you can access these varaibles inside your local webdynpro component.
Regards
Ravi

Return Data from Oracle using a web service in AXIS - please help

Hi Forum,
I am very new to web services and Java tech. and recently I have been assigned to work with technology and I am struggling to learn it and need your help and assistance.
I am trying to return some data from a an oracle database but I have to do that using a web service and I am using AXIS. For example below is a simple program that returns two columns for the demo EMP table
import java.sql.*;
class emp {
public static void main(String args[])
throws ClassNotFoundException, SQLException {
Class.forName("oracle.jdbc.driver.OracleDriver");
// or you can use:
// DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott", "tiger");
Statement stmt = conn.createStatement( );
ResultSet rset = stmt.executeQuery("select * from emp");
while(rset.next( )) {
System.out.println(rset.getString(1));
System.out.println(rset.getString(2));
rset.close( );
stmt.close( );
conn.close( );
} but I do not know how to convert this into a web service.
Please help.
Thanks in advance.
Regards,
Ravi

The following code returns Document. I will be calling the below function to convert my Resultset to document. In my JWS file i simply call a method with parameters. can a web service method in .jws file return Document type. It shows error will doing so. Please help me.
public static Document toDocument(ResultSet rs) throws ParserConfigurationException, SQLException
 Document res_doc = null;
 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 DocumentBuilder builder = factory.newDocumentBuilder();
 Document doc = builder.newDocument();
 Element results = doc.createElement("Results");
 doc.appendChild(results);
 ResultSetMetaData rsmd = rs.getMetaData();
 int colCount = rsmd.getColumnCount();
 while (rs.next())
 Element row = doc.createElement("Row");
 results.appendChild(row);
 for (int i = 1; i <= colCount; i++)
 String columnName = rsmd.getColumnName(i);
 Object value = rs.getObject(i);
 Element node = doc.createElement(columnName);
 node.appendChild(doc.createTextNode(value.toString()));
 row.appendChild(node);
 return res_doc;
 }

Complex object as parameter from BPEL PM to Web Service

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