topic Re: start activiti with message start event in Alfresco Forum

start activiti with message start event

arag — Mon, 24 Apr 2017 22:31:05 GMT

Hi,I have a simple model bpmn (start message and two tasks ), the problem is that i dont know how to start the flow with a message,i worked with JMS and now i can get the message and all the data that i need but how i can start the flow with my message ??? what is the secret ?? O.O jaj

Re: start activiti with message start event

jearles — Tue, 25 Apr 2017 20:53:54 GMT

Ara,

Since you've already done the leg-work for creating the JMS integration, the rest is just utilizing Activiti's built-in APIs to call the appropriate methods to kick off a process. The API Docs list several methods similar to the one you highlighted:

startProcessInstanceByMessage(<params>)

Me personally, I like to look at Activiti's Tests in Github to see how these things work; but basically what you're going to end up doing is: Create a named message event in the process diagram, then call it as the 'messageName' parameter you were asking about. The User Guide documentation is a pretty solid reference as to how these work and setting them up.

Hope this helps to bridge your knowledge here
-JEarles

Re: start activiti with message start event

gdharley — Tue, 25 Apr 2017 21:25:24 GMT

Within the BPMN Process definition you will need to create a message definition in the process model:

This is the message you will use to start the process instance.

Next, you need to add a "Start Message Event" in your process and subscribe to the message you created:

Now, in order to start the instance, you can either use the REST API:

POST /activiti-app/api/runtime-instance

{    "message":"myMessage",    "variables": [       {         "name":"myVar",         "value":"This is a variable",       }    ] }

Alternatively, if you are using the Java API use:

ProcessInstance startProcessInstanceByMessage("myMessage");

If you are looking for a complete example using java code, take a look at

MessageStartEventTest.java in the Activiti source Activiti/MessageStartEventTest.java at activiti-5.22.0 · Activiti/Activiti · GitHub

Look for "testingSingleMessageStartEvent" test.

Hope this helps,

‌

Re: start activiti with message start event

arag — Wed, 26 Apr 2017 13:14:35 GMT

Thanks!!! you save my life

Re: start activiti with message start event

arag — Wed, 26 Apr 2017 13:15:13 GMT

Great i will try to download the example... Thanks!!!