How to signal event to process started by JBPM Console?

[thomas.setiabudi]

Hi,

I Use JBPM5.4, My Database is MS SQL Server 2008

I started my processes using JBPM-Console.

The problem is JBPM Console does not have any REST Interface that allows us to send signal to a process instance.

What I should do to send signal to those process instances?

Any help is appreciated.

Regards,

Thomas Setiabudi

[swiderski.maciej]

there is a signal REST interface method it's just now so clear as it is constrained by the bpm console interface which was designed prior to jBPM5 and does not accommodate all requirements, if i recall correctly it should be like this (relative path):

/rs/process/tokens/[processInstanceId]/transition?signal=[your-signal]^[event-object]

HTH

[thomas.setiabudi]

Wow thats sure is interesting

What is the [event-object] Maciejs?

A JSON String?

Regards,

Thomas Setiabudi

[swiderski.maciej]

currently it does support only simple string values as event object

[thomas.setiabudi]

Thank you Maciej

Will give it a try and post back here.

Regards,

Thomas Setiabudi

[thomas.setiabudi]

Hi Maciej,

By the way, what is the use of [event-object] ?

Regards,

Thomas Setiabudi

[swiderski.maciej]

it's the object that is pass as argument 'event' to the ksession.signalEvent method

HTH

[thomas.setiabudi]

Thank you Maciej, it works

Regards,

Thomas Setiabudi

[hari6025]

Hi Maciej and Thomas,

I am new to jbpm5.4. I have a requirement to handle exception in my workflow. Could you please suggest me the way to handle this?.
i thought of handling this using intermediate catch event. but here as well i'm facing the issue like i need to define that signal flow all the processes(parent and subprocess as well.). Need some inputs better way of handling the exception by having a single work flow defined for this exception and which will be used across all the processes.

Thanks in advance,

Hari.

[thomas.setiabudi]

Hi Hari Kumar,

Where do you mean your exception to happen? inside workItemHandler? or workflowRuntime Exception?

By the way, maybe you need to open a new forum thread since this one is only about how to signal event and is already answered. Open a new thread and you got bigger chance to get reply from others too.

Regards,

Thomas Setiabudi

[hari6025]

Hi Thomas,

Thanks for your reply. Inside my service task handler(workItemHandler) i'm calling external webservice during this time if some exception thrown how do i handle this and I thought of defining one seperate exception flow for this(In this thought of persisting the data). Could you plz suggest me the better way of doing this?

Regards,

Hari.

[thomas.setiabudi]

Hi Hari Kumar,

I think what you do should be ok.

Try to look at the implementation of org.jbpm.process.workitem.wsht.GenericHTWorkItemHandler at code line around 185.

There the Work Item Handler can be confirgured to three kind of action when an exception occured:

1. Abort the work item, and the process will continue

2. Throw new Exception (and the process should rollback or stop at that node)

3. Log the error

Another option is to complete the workitem with output that will trigger the alternate flow path.

btw, you should open a new thread for this as others will be able to see your question and help too.

Regards,

Thomas Setiabudi