Retrieving Status/Results from Asynchronous BPEL Processes

Hi,
I'm trying to poll the results of an asynchronous BPEL process with Java RMI. I managed to get the state of my instance, but i could not get the results of the process.
When I use the method getResult I only get an empty Object[]. (see my attached code)
I'm working with the tutorial 101.HelloWorld process.
How can I acess the results of this process by using RMI?
Thank youf for replies.
Marc
Properties props = new java.util.Properties();
java.net.URL url = ClassLoader.getSystemResource("context.properties");
props.load(url.openStream());
Locator locator = new Locator("default", "bpel", props);
IInstanceHandle handle = locator.lookupInstance("myInstance");
if (handle.getState() == IInstanceConstants.STATE_CLOSED_COMPLETED)
System.err.println(handle.getResult());
}

Hi,
I am having exactly the same problem.
Was this bug ever solved ?
Thanks,
Claudio.

Similar Messages

Unable to get callback from Asynchronous BPEL process to work (AXIS Client)

Hello,
I am calling an Asynchronous BPEL process from an AXIS client, and I am unable to get the callback functionality to work. The AXIS client code has been generated from WSDL2Java using the BPEL process' WSDL file.
I CAN insert an invoke node in the BPEL process and invoke my Callback web service using that, but obviously that means the BPEL process is limited to only responding to one pre-determined client, which won't work.
My questions:
- How does the BPEL process know what endpoint to use to make the callback?
- Do I need to modify the generated code to create a SOAP Envelope and invoke the process with the envelope, intead of the invokeOneWay call?
- If I do need to create a SOAP Envelope with a replyto element, what is the structure of a typical BPEL envelope? Is there an example somewhere?
I have looked at the examples in the interop directory, specifically the AXIS calling Async BPEL, but I would like to try to keep the client code as independent as possible (I don't really want to have a dependency on the OTN library).
Any help would be greatly appreciated!!
Thank you.
-Ryan

Please have a look at the Binding in the WSDL. Axis must provide the ReplyTo and
MessageId information there. As far as I see, this must be done by an Axis-Handler,
because the Binding-Part in not generated by WSDL2Java.
I was able to generate the JavaClasses by using the "WSDL2Java -a" option, but
I still do not see how to use them in a handler and how to register the handler.
Maybe someone can give me a hint.

How to obtain response from asyn bpel process invoked through java

I need to get the response from Asynchronous bpel process which im invoking through java using DeliveryPost method whose return type is void.

I was able to write java code for the above process
the code is here
NormalizedMessage nm = new NormalizedMessage( );
String uniqueBpelId = com.collaxa.cube.util.GUIDGenerator.generateGUID();
java.util.Map msgProps = new HashMap();
// NormalizedMessage res = deliveryService.request("OraFormsService", "initiate", nm);
//deliveryService.post(null,null,null,null);
msgProps.put("conversationId",uniqueBpelId);
nm.setProperty("conversationId",uniqueBpelId);//to set the property for this message
nm.addPart("payload",xml1);//to add to the payload of this message
deliveryService.post("OraFormsService", "initiate", nm);
// System.out.println("con1 "+IDeliveryConstants.STATE_HANDLED);
StringBuffer buf = new StringBuffer();
WhereCondition cond;
cond = new WhereCondition(buf.append(SQLDefs.IM_state).append( " = " ).append(IDeliveryConstants.STATE_UNRESOLVED ).toString() );
//cond = WhereConditionHelper.whereInstancesOpen();
IInvokeMetaData imd[] = locator.listInvokeMessages(cond);
String ids[] = new String[imd.length];
// print out the partial process information
// for processes in manual recovery status on invoke
for (int i = 0; i < imd.length; i++)
System.out.println("ConversationId=" +
imd.getConversationId());
System.out.println("ProcessId=" +
imd[i].getProcessId());
System.out.println("State=" + imd[i].getState());
ids[i] = imd[i].getConversationId();
Thanks for the Help

How to get response from an asynchronous BPEL process in Java

I'm experimenting with BPEL and doesn't seem to be able to get response from an asynchronous BPEL process. Here's the deal:
I have a BPEL process that takes a string as input, and gives another string as output. This is a asyncronous process.
I want to initiate this BPEL process as a web service so I generate a Webservice Proxy in JDeveloper 10g (10.1.3.0.4). The function to call the process is now called "initiate" and takes three arguments: the input string, a "org.xmlsoap.schemas.ws._2003._03.addressing.EndpointReferenceType replyTo" and a
"org.xmlsoap.schemas.ws._2003._03.addressing.AttributedURI messageID".
HTTP-Analyzer shows that invoking the BPEL process with initiate("somestring", null, null) results in sending a SOAP message to the BPEL process, which returns a "202 Accepted". How do I get the response from the process? My intuition tells me that I have to use that second argument, that EnpointReferenceType thing. How do I use that?
Another question: If a asynchronous BPEL process does not exists (so the endpoint does not exist) the Java proxy does not throw an error when runned. It does not even sends a message. It exits with status 0! (This happens for example when deploying a new version of a process and when the "old" version is undeployed). Calling a non-existing synchronous BPEL process, the Java proxy DOES throw an error.

Clemens,
That all sounds logical. But somehow it is still a mystery for me ... Somehow I don't see what should be done.
To call the async BPEL process I have the following procedure:
initiate(String input, org.xmlsoap.schemas.ws._2003._03.addressing.EndpointReferenceType replyTo, org.xmlsoap.schemas.ws._2003._03.addressing.AttributedURI messageID)
The first argument is the input for my BPEL process. The second is the address to a webservice that should handle the callback, right? The third is a messageID (makes sense, but why of the type AttributedURI?).
Here lies my problem. It is not clear to me how these EndpointReferenceType & AttributedURI work. I can't find anything on the net about it. The AXIS examples as where mentioned earlier use other types (namely the "org.xmlsoap.schemas.ws.addressing.MessageID" and "org.xmlsoap.schemas.ws.addressing.ReplyTo") which are completely different.
What I did so far:
- I created an webservice proxy that listens on the onResult endpoint of the BPEL process.
- I created an webservice proxy that calls the BPEL process through the initiate procedure, but it is not completely clear to me how to construct the EndPointreferenceType replyTo, and the MessageID. I did something like this:
EndpointReferenceType replyTo = new EndpointReferenceType();
// callback service running on local machine
// This URI class is the java.net's version
URI replyToURI = new URI("http://vaccinatie:8988/syncro-callback-context-root/stringconcatCallbackBindingPort");
// This AttributedURI is the org.xmlsoap.schemas.ws._2003._03.addressing's version
AttributedURI address = new AttributedURI();
// the only public methos that made sense to me:
address.set_value(replyToURI);
replyTo.setAddress(address);
// call the BPEL process
myPort.initiate("test123", replyTo, address);
But the above doesn't work (largely because I don't know what I'm doing here prob.:-) ) It does send the "test123" message, and the BPEL process does process it, but I don't seem to get the callback right.
I hope this makes my problems somewhat clearer. I hope someone can help me, because I'm just a beginner in this whole "web service area" and seems to do something terribly wrong here, because it should be very simple. Thx.

Invoking asynchronous BPEL process from java ui

Hi,
I am invoking an asynchronous BPEL process from java ui.
I read somewhere that i can obtain an instance handler uing the lookupInstance() method of class Locator using the conversation id provided by the class NormalizedMessage.
My code looks like this
// Connect to Oracle BPEL server
Locator locator = new Locator("default","bpel");
IDeliveryService deliveryService = (IDeliveryService)locator.lookupService(IDeliveryService.SERVICE_NAME );
// Construct a normalized message and send to Oracle BPEL Process Manager
NormalizedMessage nm = new NormalizedMessage();
nm.addPart("payload", xml);
// Initiate the BPEL process
deliveryService.post("MyLoanFlow", "initiate", nm);
//Obtain the instance handler
IInstanceHandle handle = locator.lookupInstance(NormalizedMessage.CONVERSATION_ID);
But this is giving the error - can not find any instance with conversation id 'conversationId'.
Also, if i try to obtain a list of instance handles associated with a process , it does not contain the most recently created instance
IBPELProcessHandle ph = locator.lookupProcess("MyLoanFlow");
IInstanceHandle[] iHandler = ph.listInstances();
out.println(iHandler.length + "<br>");
if i invoke the process for the first time the output is 0.
can you please help me. it is urgent.

Hi Sudipto,
Regarding your second question,
deliveryService.post("MyLoanFlow", "initiate", nm);
IBPELProcessHandle ph = locator.lookupProcess("MyLoanFlow");
IInstanceHandle[] iHandler = ph.listInstances();
out.println(iHandler.length + "<br>");
---- returns 0 ---
This is because MyLoanFlow is an asynchronous process in your case. So the control is returned to your java block immediately after the request for a new instance is posted. And your second line of code(querying for the list of instances) is executed even before the instance is created on the server side. You can verify this in two ways:
1. try creating an instance of a synchronous process using IDeliveryService.request - this will always result in the increment since the current thread is blocked till the new instance is created.
2. for your case, you can try
Thread.currentThread().sleep(500); - just allow the server some time for completing the instance before you query it for the list of instances..
and wrt question 1,
//Obtain the instance handler
IInstanceHandle handle = locator.lookupInstance(NormalizedMessage.CONVERSATION_ID);
But this is giving the error - can not find any instance with conversation id 'conversationId'.
For setting the conversationId, you could do so by including the following inside your .bpel file
<bpelx:exec name="test-setConversationId" language="java" version="1.4">
<![CDATA[
setConversationId("conversationId");
]]>
</bpelx:exec>
The code:
IInstanceHandle ins = locator.lookupInstanceByConversationId(NormalizedMessage.CONVERSATION_ID);
should fetch you the required instance in this case.
HTH,
Anuj

Asynchronous BPEL Process called from an empty BPEL process getting lost.

Hi
I have an empty BPEL process calling an asynchronous BPEL process. The empty process is triggered by a read file activity. It finishes successfully and even calls the asynchronous process. There is no error thrown but the called asynchronous process does not show up in the dashboard.
When this asynchronous process is manually run from the console I get the page stating 'Cannot find the specified instance'.
I am using Jdev 10.1.3.2 and SOA Suit 10.1.3.1.
Any suggestion as to why this is happening and what is the remedy?
Buddhadev.

Check your log as soon as you find that the parent process has found its way into the console. More information on logging can be found here - http://download-uk.oracle.com/docs/cd/B31017_01/integrate.1013/b28982/logging.htm
Not quite sure why its so, but since 10.1.3, I've observed that the console simply doesn't show errored processes at times. So, checking the log can be a starting point in diagnosing the real issue.
HTH
Antony

Throwing a fault from an asynchronous bpel process

Hi,
can anyone please let me know how i can throw a fault to the calling client from an asynchronous bpel process?
(synchronous bpel uses the fault of the reply activity to do the same - i want a similar thing in a callback-invoke of an asynchronous process or any other way to do it if at all)
please let me know if it is possible becoz it was a requirement put forward by a customer and i just want to develop a proof of concept to the same.
regards,
pavan.

Hi,
I'm using BPEL process manager for calling a asynchronous web service,I can invoke the service from BPEL and the service is invoked correctly,but when I view the business process flow in BPEL Console my process is stopped at receive state and doesn't pass it.
Could anybody tell me if any thing should be set to receive a callback from an asynchronous web service to BPEL process?
Is it true that BPEL process receives a callback automatically (using a callback operation which I defined in my web service WSDL) on the same port type that normally receives the requested information, with an invoke activity?
So what could be wrong with my process or invoked web service that the BPEL process doesn't get any reply from my web service and remains in receive activity?
Thnx in advance,
Nasim

HowTo get the callback from an asynchronous BPEL process to an ESB?

Hi,
I have deployed an asynchronous BPEL-process which is called from an ESB. So far no problems. But I want to receive the callboack fromt this BPEL process on the ESB, too.
How is this possible?
Note: I have created the BPEL-Process before I created the ESB. So I cannot add the ESB as a partner link in the BPEL Process. Or is this the only way?
Message was edited by:
user636134

Hi,
I have deployed an asynchronous BPEL-process which is called from an ESB. So far no problems. But I want to receive the callboack fromt this BPEL process on the ESB, too.
How is this possible?
Note: I have created the BPEL-Process before I created the ESB. So I cannot add the ESB as a partner link in the BPEL Process. Or is this the only way?
Message was edited by:
user636134

How to call a Asynchronous bpel process from a PLSQL procedure?

How to call a Asynchronous bpel process from a PLSQL procedure?

Hi,
You could do something smart and technical very spiffy with soap-stacks in the database and/or dbms_ws/dbms_http. But I allways find AQ with AQ-adapter the simplest. Let Pl/sql enqueue a message on an aq-queue and subscribe an aq-adapter process on it. That can call your async-bpel process. If you want to get answer back in pl/sql, let the aq-adapter process enqueue a response message on another queue or on the same queue with another consumer name. Give it a correlation-id that you provided in the payload of your request message. Your pl/sql process can then do a dequeue on that correlation-id. It will sit and wait until a message with that correlation id is enqueued on the queue.
Regards,
Martien

Correlation in Asynchronous BPEL process

I have thoroughly read docs & various blogs for this correlation concept and I am developed the bpel process without any compilation error. But when I execute, all the instances are waiting in receive activity with message *"Waiting for "processResponse" from "AsynchBPELProcess3.AsynchBPELProcess1.PartnerLink1". Asynchronous callback."*
My scenario goes like this, I have three simple Asynchronous BPEL process with flow A --> B --> C i.e;
step 1) client invokes process A with initial inputs
step 2) process A does some assignment and invokes process B and then followed by a receive activity to receive response back directly from process C
step 3) process B simply invokes process C after some assign activity
step 4) process C do actual task for computation -- this is from where i am expecting output result at process A
Done correlation at process A's recieveInput activity & in additionally added a receive activity to get response.
Flows works as expected....everything if fine. But only at the time of returning the output result back to process A ..this waits for long time and after some time it becomes stale.
Thanks.

Yes you can achieve this. There are many ways to get this, it depends on your design. I didn't try the correlation sets.
If i were you I would like to use the message header properties of the JMS queue. Set an MsgID for the request message and use the same MsgId to listen the response. You have to ask the partner to listen to your request message and store the KsgID and set the same MsgID to the header properties in response message.
Let me know if you have any questions.
Thanks
Ramana.

Can an synchronous ESB process initiate an asynchronous BPEL process?

I have a requirement to create a synchronous ESB service that initiates an aysnchronous BPEL process returning a success message to the requesting system.
I can create an esb that receives a paylaod from the requesting system and returns a receipt message, I then created an asynchronous bpel process.
Although I can initiate the asynchronous bpel process from the ESB I cannot work out how to send back the success message? The routing rules do not allow setting of outgoing messages unless you call a synchronous process?

Can you make the BPEL process synchronous. Calling a asynchronous process breaks your synchronous message, because what happens if your asynchronous process takes longer that 1 minute. The synchronous process will timeout but the asynchronous process will complete.
The previous note is correct you can use queues but all this will do is tell you that you posted correctly, you get the same result calling a web service. Asynchronous is fire and forget in a ESB world as it is stateless.
cheers
James

Asynchronous BPEL Process

I am trying to understand better how I can use an asynchronous BPEL Process.
With the JDeveloper Wizard I can create a BPEL Process by using the Templey Asynchronous BPEL Process.
I can deploy the BPEL Process into an Weblogic Application Server.
To test the BPEL Process I use the Enterprise Manager 11g Fusion Middleware Control
http://localhost:7001/em/
I click on Test Web Service and the result is
The web service invocation was successful. However, there was no response to the invocation from the server.
I click on Launch Flow Trace
and I can see the callbackClient (Started invocation of operation "processResponse" on partner "bpelprocess_client")
I used the JDeveloper to create a Web Server Proxy. I mean the Wizard who creates a test client for the BPEL process.
I provided the WSDL Document URL and clicked on the next button. On the Dialog Specify Default Mapping Options the Option
Generate As Async is inactive. I expected that the Web Server Proxy Wizard should understand that the service contains
asynchronous features.
Currently I am not able to write a Java client which can receive the async Response from the BPEL Process.
Am I missing something? Can someone clarify to me what is need to receive the async Response from the BPEL Process?
Thank you very much
Regard
Michael

I am using JDeveloper 11g Release 1 (11.1.1.5.0)
SoaSuite 11.1.1.5.0
WebLogic Server Version: 10.3.5.0
Oracle Database 11g Release 11.2.0.1.0
I used the jdedeloper BPEL wizard to create a BPEL 2.0 Specification Asynchronous BPEL Process exposed as a SOAP service.
I deployed the BPEL Process witch JDeveloper to the WeblogicServer.
I created a new Generic Project.
The I used the jdeveloper Web Service Proxy wizard to create a java client.
I select JAX-WS Style and in the WSDL Document URL I typed
http://localhost:7001/soa-infra/services/default/WebServiceExample/bpelprocess_client_ep?WSDL
I found the URL http://localhost:7001/soa-infra/services/default/WebServiceExample/bpelprocess_client_ep?WSDL
from http://localhost:7001/em website.
In the dialog
Specify Default Mapping Options
I can type in Package Name , Root Package for Generated Typed and I can click on
Unwrap Wrapped Parameters. I can not click on Generate As Async.
Two dialogs later I can select
Generate asynchronous methods where specified by the JAX-WS binding
The Java classes are created without an error.
There is a class called BPELProcess_ptClient.java and in the main Method of the class there is a comment
// Add your code to call the desired methods.
I add there a line to invoke the method
bPELProcess.process("mystring");
That works but I do not get a response.
Am I missing something?

Error while invoking ESB process from a BPEL process

Hi all
We have a requirement to call an ESB process from a BPEL process. We are using an adapter wth the ESB's WSDL url. After deploying the BPEL process, the registered ESB is getting called for most values while suddenly some values return the followign error
*"exception on JaxRpc invoke: HTTP transport error: javax.xml.soap.SOAPException: java.security.PrivilegedActionException: javax.xml.soap.SOAPException: Message send failed: Connection reset"*
The catch here is, if we re-run the process with the same values again, the ESB is called successfully! How is it possible for a process to error out and run normally for the same inputs ?
What could be the possible fix for this? I am thankful for any inputs on this.
Vijay

Hi Vijay,
This is a bug and you can refer the metalink note:
"Applying Patch 7445876 Results in Error "java.lang.NullPointerException". [ID 942575.1]" for reference.
Also you can refer the following link:
"http://puchaanirudh.blogspot.com/2008/12/exception-on-jaxrpc-invoke-http.html" also.
Thanks,
Vishwanath.

Error while invoking an asynchronous BPEL process

Hi ,
I am trying to call an asynchronous BPEL process through java client.
Following is the code which I got from SOA bpel samples present in the following location
<SOA_HOME>\bpel\samples\tutorials\102.InvokingProcesses\rmi\com\otn\samples\async
The code fails while registering the callback
String convId = GUIDGenerator.generateGUID();
nm.setProperty(NormalizedMessage.CONVERSATION_ID, convId);
deliveryService.post("HelloWorld", "initiate", nm);
// register the callback
watchdog.registerAsyncCallback(convId, testAsyncHandler,
locator.getDomainAuth());
The error says java.lang.NoClassDefFoundError: org/collaxa/thirdparty/json/JSONString
I tried to search for this in google. But it seems noone has got this error or maybe noone has used this at all.
Maybe I am missing some jar file, but I am unable locate that.
Can someone help me in this please.

Hi,
These sort of class not found errors come when you are running from a client which does not have all the jar files requried to invoke BPEL using the client API.
org/collaxa/thirdparty/json/JSONString is orabpel-thirdparty.jar.
The complete list of Jar files you would need in the classpath are:
ejb.jar ($ORACLE_HOME/home/lib)
oc4j-internal.jar ($ORACLE_HOME/home/lib)
optic.jar ($ORACLE_HOME/opmn/lib)
orabpel-common.jar ($ORACLE_HOME/bpel/lib)
orabpel-thirdparty.jar ($ORACLE_HOME/bpel/lib)
orabpel.jar ($ORACLE_HOME/bpel/lib)
Hope this helps,
Regards,
Shanmu.
http://www.prshanmu.com/articles/

Invoking ODI Scenario from a BPEL process - Resolved

I new to Oracle products.
I am exploring Oracle Data Integrator tool.
I would like to call ODI scenario from a BPEL process.
I created a scenario in ODI, I have SOA suite10.1.3.3 installed in my machine.
In some portal I have read that, we need to deploy apache axis to Oracle App server and then deploy the ODI public web service to axis. This public web service facilitates us to call scenario from partner link.
Following are my questions:
1) I guess Oracle App server acts as webservice container too. Why should I use apache axis here?
2)If axis must be used, please let me know how to deploy it to OAS.
If axis is not required, please guide me how to deploy public web service to OAS.
Thanks!!

Hi:
I have similar problem, when invoke ODI Scenario from a BPEL Process, the error in ODI Designer is:
java.lang.NullPointerException
     at com.sunopsis.dwg.dbobj.SnpSession.a(SnpSession.java)
     at com.sunopsis.dwg.dbobj.SnpSession.y(SnpSession.java)
     at com.sunopsis.dwg.dbobj.SnpSession.treatSessionPreTrt(SnpSession.java)
     at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java)
     at com.sunopsis.dwg.cmd.DwgCommandScenario.treatCommand(DwgCommandScenario.java)
     at com.sunopsis.dwg.cmd.DwgCommandBase.execute(DwgCommandBase.java)
     at com.sunopsis.dwg.cmd.e.i(e.java)
     at com.sunopsis.dwg.cmd.h.y(h.java)
     at com.sunopsis.dwg.cmd.e.run(e.java)
     at java.lang.Thread.run(Thread.java:595)
In the BPEL Console the result is OK and process complete, but in the INVOKE scenario send message:
<messages><ODI_REQUEST><part xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="part1"><invokeScenarioRequest xmlns="xmlns.oracle.com/odi/OdiInvoke/">
*<RepositoryConnection xmlns=""*
<JdbcDriver>oracle.jdbc.driver.OracleDriver</JdbcDriver>
<JdbcUrl>jdbc:oracle:thin:@192.168.1.109:1521:ORCL</JdbcUrl>
<JdbcUser>dimaster</JdbcUser>
<JdbcPassword>sabr0sa</JdbcPassword>
<OdiUser>SUPERVISOR</OdiUser>
<OdiPassword>SUNOPSIS</OdiPassword>
<WorkRepository>TESTWORKREP1</WorkRepository>
</RepositoryConnection>
*<Command xmlns="">*
<ScenName>P_TRASPASOSOP09</ScenName>
<ScenVersion>2</ScenVersion>
<Context>Global</Context>
<LogLevel>5</LogLevel>
<SyncMode>0</SyncMode>
<SessionName/>
<Keywords/>
<Variables>
<Name/>
<Value xmlns:ns1="http://xmlns.oracle.com/Recepcion">
<ns1:Escenario>P_TRASPASOSOP09</ns1:Escenario>
<ns1:Version>2</ns1:Version>
<ns1:Contexto>Global</ns1:Contexto>
<ns1:ID>1</ns1:ID>
<ns1:NivelLogeo>5</ns1:NivelLogeo>
</Value>
</Variables>
</Command>
*<Agent xmlns="">*
<Host>192.168.1.109</Host>
<Port>20910</Port>
</Agent>
</invokeScenarioRequest>
</part></ODI_REQUEST><ODI_RESPONSE><part xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="part1"><odi:invokeScenarioResponse xmlns:odi="xmlns.oracle.com/odi/OdiInvoke/">
<odi:CommandResultType>
<odi:Ok>true</odi:Ok>
<odi:SessionNumber>445000</odi:SessionNumber>
</odi:CommandResultType>
</odi:invokeScenarioResponse>
</part></ODI_RESPONSE></messages>

Retrieving Status/Results from Asynchronous BPEL Processes

Similar Messages

Maybe you are looking for