Calling Process Flow from Java code - JBPM6.3

[Abhijit Gupta]

Hi ,

Just a quick question regarding the jbpm6.3

I installed jbpm6.3 on Tomcat and was able to successfully create the process flow and start the instance from workbench. 

But trying it from the Java code, I am unable to start the process (same code works fine with jbpm6.2)

Java Code:

URL url = new URL("http://localhost:8080/jbpm-console/");

        

        RuntimeEngine engine = RemoteRuntimeEngineFactory.newRestBuilder()

        .addDeploymentId("test:Project1:1.0")

        .addUrl(url)

        .addUserName("ad...@test.com")

        .addPassword("Welcome1#")

        .addTimeout(5000)

        .build();

        

        

        ProcessInstance processInstance = engine.getKieSession().startProcess("Project1.Flow1");

Error (Eclipse Console) :

org.kie.remote.client.api.exception.RemoteCommunicationException: Unable to retrieve content from response!

at org.kie.services.client.api.command.AbstractRemoteCommandObject.executeRestCommand(AbstractRemoteCommandObject.java:427)

at org.kie.services.client.api.command.AbstractRemoteCommandObject.executeCommand(AbstractRemoteCommandObject.java:128)

at org.kie.services.client.api.command.KieSessionClientCommandObject.startProcess(KieSessionClientCommandObject.java:248)

at flowCall.StartFlow.main(StartFlow.java:25)

Caused by: org.kie.remote.common.rest.KieRemoteHttpRequestException: Unable to retrieve input stream of response

at org.kie.remote.common.rest.KieRemoteHttpRequest.responseStream(KieRemoteHttpRequest.java:1365)

at org.kie.remote.common.rest.KieRemoteHttpRequest.responseBuffer(KieRemoteHttpRequest.java:1383)

at org.kie.remote.common.rest.KieRemoteHttpRequest.responseBody(KieRemoteHttpRequest.java:1325)

at org.kie.remote.common.rest.KieRemoteHttpRequest.access$2100(KieRemoteHttpRequest.java:117)

at org.kie.remote.common.rest.KieRemoteHttpRequest$4.body(KieRemoteHttpRequest.java:1291)

at org.kie.services.client.api.command.AbstractRemoteCommandObject.executeRestCommand(AbstractRemoteCommandObject.java:405)

... 3 more

Caused by: java.net.HttpRetryException: cannot retry due to server authentication, in streaming mode

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)

at java.net.HttpURLConnection.getResponseCode(Unknown Source)

at org.kie.remote.common.rest.KieRemoteHttpRequest.responseCode(KieRemoteHttpRequest.java:1305)

at org.kie.remote.common.rest.KieRemoteHttpRequest.post(KieRemoteHttpRequest.java:719)

at org.kie.services.client.api.command.AbstractRemoteCommandObject.executeRestCommand(AbstractRemoteCommandObject.java:392)

... 3 more

Also attaching the log file (Shows lot error can refer the error came at the last)

Thanks,

Abhi

[Marco Rietveld]

Hi Abhijit,

in 6.4, we introduced security roles.

Please make sure to add the "rest-all" security role to your user in the tomcat configuration.

Thanks,
Marco

On 2015-11-02 11:55, Abhijit Gupta wrote:
> Hi ,
>
> Just a quick question regarding the jbpm6.3
>
> I installed jbpm6.3 on Tomcat and was able to successfully create the process flow and start the instance from workbench.
>
> But trying it from the Java code, I am unable to start the process (same code works fine with jbpm6.2)
>
> Java Code:
>

> URL url = new URL("http://localhost:8080/jbpm-console/ <http://localhost:8080/jbpm-console/>");

> RuntimeEngine engine = RemoteRuntimeEngineFactory.newRestBuilder()
> .addDeploymentId("test:Project1:1.0")
> .addUrl(url)

> .addUserName("ad...@test.com <mailto:ad...@test.com>")

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[mrie...@redhat.com]

Abhijit,

Please always make sure to post to the list. Other people could also benefit from the answers, right?

Abhijit wrote:
| Thanks for reply, I am facing the issue for 6.3 so are you referring 6.3 or 6.4

Both.

| And exactly where do we have to add this, i am picking the user and role from mySQL DB. So do i have to add the role rest-all for the specific user in DB.

You should add this in the tomcat-users.xml file.

Here is a list of all of the roles that have been added ;

All operations:                    rest-all
project/repo operations:           rest-project
deployment operations:             rest-deployment
process operations:                rest-process
only read process ops:             rest-process-read-only
task operations:                   rest-task
only read task ops:                rest-task-read-only
Query operations:                  rest-query
Only the Java remote client ops:   rest-client

Thanks,
Marco

[Abhijit Gupta]

Hi Marco,

Yes right will be carefull and reply in list so others can also take benefit.

I addded the security role for the user "ad...@test.com" as "rest-all" in DB as I changed the Tomcat DataSourceRealm and pointing to DB instead of tomcat-users.properties

But still I am getting same error as before.

Thanks,

Abhijit 

[Auxee Ashraph]

Hi everyone,

I get the following error when i try to make a post

14:04:26,451 INFO  [stdout] (http-localhost/127.0.0.1:8080-2) 14:04:26.451 [http-localhost/127.0.0.1:8080-2] ERROR c.t.c.c.j.b.impl.RemoteBRMConnector - Error was found to send command to rule engine

14:04:26,451 INFO  [stdout] (http-localhost/127.0.0.1:8080-2) org.kie.remote.common.rest.KieRemoteHttpRequestException: Unable to retrieve input stream of response

i can deploy the files without anyerror. Can anyone help?