Alfresco Activiti-App: showing attached process and task documents

[mikeblum]

Hi,

I'm attempting to programatically attach a file to an Activiti Process Instance. I've proved out that I can set the text of a form field but am not able to attach a document yet.

My first attempt was to add a byte array of the file to the properties ultimately being sent to the process before calling

FileInputStream fs;
      try {
          fs = new FileInputStream("test-doc.pdf");
          //attach it to the process at large
          //TODO: get the attachment mimetype
          workflowData.put("workflowdocument", IOUtils.toByteArray(fs));
          logger.info("Attaching file as workflowdocument to process");
      } catch (Exception e) {
         logger.error("Failed to attach mock file to process", e);
      }
…
ProcessInstance newInstance = runtimeService.startProcessInstanceById(processId, workflowData);
‍‍‍‍‍‍‍‍‍‍‍‍‍‍

My second attempt was to attach the attachment using the TaskService after the task had been created:

 logger.info("Started workflow " + newInstance.getId() + " with process: " + processId);
        FileInputStream fs;
      try {
         fs = new FileInputStream("test-doc.pdf");
         //attach it to the process at large
         //TODO: get the attachment mimetype
         Attachment attachment = taskService.createAttachment("application/pdf", null, newInstance.getId(), "workflowdocument", "test doc", fs);
      } catch (FileNotFoundException e) {
         logger.error("Failed to attach file to process: " +  newInstance.getId(), e);
      }
‍‍‍‍‍‍‍‍‍‍‍‍

But neither show in the activiti-app when viewing that task. But they are successfully being attached when I cross-check with the Task Service.

I can't seem to embed my screenshots here so here's an imgur link:

http://imgur.com/a/NvFkB#RDqfi4S

What is the proper way for attaching a document (a content item I believe?) to have it show up in the activiti-app interface?

Thanks,
Mike

[trademak]

Hi Mike,

You are working with the Alfresco Activiti Enterprise application right?
There's a different API in enterprise to add attachments / related content to a task or process instance.
This API is part of the RelatedContentService.

Best regards,

[mikeblum]

Hi Tijs,
Correct I'm using the enterprise Activiti application. I wasn't able to find any documentation on the related content service in the public activiti api docs (http://activiti.org/javadocs).  Is this an alfresco specific service?


Thanks,
Mike

http://activiti.org/javadocs/

[mikeblum]

Hi Tijs,

I found the necessary endpoints in the bundled documentation with the Alfresco Enterprise Activiti Suite 1.2 installer.

Thanks,
Mike

[mikeblum]

Hi Tijs,

I've created a service that uploads content to the process but its not showing up in the activiti-app:

To add content to a process instance:

POST api/enterprise/process-instances/{processInstanceId}/content-raw

and I see the content was successfully attached with:

GET api/enterprise/process-instances/{processInstanceId}/content

Do I need to do anything else to get the document to show up on the task? I don't see the document on the process either in the activiti-app.

Thanks.
Mike

[mikeblum]

here's the result of the {processInstanceId}/content GET call:

<javascript>
{
  "size": 1,
  "total": 1,
  "start": 0,
  "data": [
    {
      "id": 7016,
      "name": "test-doc.pdf",
      "created": "2015-07-09T19:15:02.984+0000",
      "createdBy": {
        "id": 1,
        "firstName": "",
        "lastName": "Administrator",
        "email": "test@localhost"
      },
      "contentAvailable": true,
      "link": false,
      "mimeType": "application/octet-stream",
      "simpleType": "content",
      "previewStatus": "queued",
      "thumbnailStatus": "queued"
    }
  ]
}
</javascript>
It there something ewlse I need to do to get the document to show up on the process and/or task in the activiti-app?

[jbarrez]

Hi Mike,

I'm not sure if the UI already displays the related content for a process.

For a task it should work though, the same method: POST /enterprise/tasks/{taskId}/raw-content with the file in multipart/form-data.
There is an optional request parameter isRelatedContent that you can use to kick off renditions (thumbnail, preview) in the UI automatically.

[jbarrez]

(Moved this to the Enterprise forum)

[mikeblum]

Hi,

From my screenshot I can see we can add content to the process instance, just not the tasks. For some reason the POST /enterprise/tasks/{taskId}/raw-content endpoint is not documented in the Alfresco Activiti api docs - it says to use POST /enterprise/process-isntances/{taskId}/raw-content. I've raised this as a case with Alfresco.

Thanks,
Mike