topic Re: Start workflow from external application in Alfresco Archive

Start workflow from external application

alarocca — Wed, 01 Jun 2011 08:13:55 GMT

Hello, I would like to start a workflow from an external application using web service. I know that workflow service are not exposed as soap, so I am trying to call the start-workflow action (org.alfresco.repo.workflow.StartWorkflowActionExecuter).I have the following problems:That action defines on

Re: Start workflow from external application

danielsmith21 — Sat, 04 Jun 2011 02:50:50 GMT

Someone please answer the OP. I'm having this same problem…

Re: Start workflow from external application

alarocca — Sat, 04 Jun 2011 06:49:13 GMT

Solved. I created a new action. Basically is the same code of org.alfresco.repo.workflow.StartWorkflowActionExecuter. The new action converts string parameters to the proper types (date, person, int, …)

Re: Start workflow from external application

ventus85 — Mon, 11 Jul 2011 08:05:39 GMT

Why you did not use "start-workflow"?
Why you had to convert the parameters?

Map<String, String> param = new HashMap<String, String>();
param.put("bpm:workflowDescription", "Something");
// etc etc
Reference reference = new Reference(store, null, null);
ActionUtils.executeAction(reference, "start-workflow", param);‍‍‍‍‍

Look for "org.alfresco.webservice.util.ActionUtils". This class contains this methods:
public static String executeAction(Reference ref, String actionName, Map<String, String> parameters)

:?:

Re: Start workflow from external application

alarocca — Mon, 11 Jul 2011 08:26:03 GMT

Compared to "start-workflow" my action allows to specify the workflow initiator (rather then the user credentials used to authenticate against the external application) and other custom fields.

One of these custom fields is a person (like the assignee). So I can provide the username as a string parameter from the external application using the ActionUtils.executeAction method. Then this value is used to retrieve the correct information and object type:

for (Map.Entry<String, Serializable> entry : paramValues.entrySet()) {
    String key = entry.getKey();

    QName qname = QName.createQName(entry.getKey(), namespaceService);

    if (key.equals("dnetwf:checker")) {
        value = personService.getPerson((String)entry.getValue());
        workflowParameters.put(qname, value);
    }
}
‍‍‍‍‍‍‍‍‍‍‍

Re: Start workflow from external application

ventus85 — Mon, 11 Jul 2011 08:38:14 GMT

One of these custom fields is a person (like the assignee). So I can provide the username as a string parameter from the external application using the ActionUtils.executeAction method.

Now I understand that.

If I use "start-workflow" and I run the code does not start the new workflow. :cry:
But I do not give up!