topic Re: ProcessDiagramGenerator error in Alfresco Archive

ProcessDiagramGenerator error

ahmetkara — Fri, 04 Feb 2011 22:25:58 GMT

Hi guys,I try to use ProcessDiagramGenerator to generate the png of a process but I couldn't yet.I am getting the error below. Caused by: java.awt.image.RasterFormatException: (x + width) is outside rasterat sun.awt.image.IntegerInterleavedRaster.createWritableChild(Unknown Source)at java.awt.image.

Re: ProcessDiagramGenerator error

frederikherema1 — Sat, 05 Feb 2011 17:29:47 GMT

Can you post some more code on how you use the generator exactly?

Re: ProcessDiagramGenerator error

ahmetkara — Sun, 06 Feb 2011 20:03:26 GMT

The way that I try is below, I am casting ProcessDefinition to ProcessDefinitionEntity (because I coludn't find the way to get ProcessDefinitionEntity from query), may it be the reason??

InputStream generatePngDiagram = ProcessDiagramGenerator.generatePngDiagram((ProcessDefinitionEntity) getProcessEngine().getRepositoryService().createProcessDefinitionQuery().processDefinitionId(selecetedProcessInstance.getProcessDefinitionId()).singleResult());

Re: ProcessDiagramGenerator error

frederikherema1 — Sun, 06 Feb 2011 20:22:16 GMT

Looks like your diagram goes beyond canvas bounds. Shouldn't happen, since all activities are checked, and the min and max X and Y coördinates are calculated to prevent this error.

Did you create the diagram in the modeler? Is it possible to attach the process?

Re: ProcessDiagramGenerator error

ahmetkara — Sun, 06 Feb 2011 20:35:07 GMT

Actually, I don't know how to generate the diagram in modeler, I have just seen it in activiti cycle and I have attached the process and signavio xml.
Thanks for your quick reply by the way.

Re: ProcessDiagramGenerator error

frederikherema1 — Mon, 07 Feb 2011 13:33:51 GMT

Hi,

If I import the process using probe, it generates the image successfully. Are you running 5.2?

Re: ProcessDiagramGenerator error

teinacher — Mon, 07 Feb 2011 16:22:54 GMT

Hi,

I'm also trying to use the ProcessDiagramGenerator and I get the same error as above. I'm invoking the generator like this:


ProcessDefinitionEntity procDef = (ProcessDefinitionEntity) getProcessEngine().getRepositoryService().createProcessDefinitionQuery()
          .processDefinitionKey(processKey).singleResult();
List<String> activeActivities = getProcessEngine().getRuntimeService().getActiveActivityIds(processInstanceId);
ProcessDiagramGenerator.generateDiagram(procDef,"jpg", activeActivities);

When debugging, I noticed that the property "activities" in the ProcessDefinition is empty (not null, but empty list). I don't know if this has anything to do with it, but since I saw the list is being accessed in initProcessDiagramCanvas() (iterating over it in a for-loop) I though it might be worth mentioning it.

Everything in my system is switched to Activiti 5.2 (DB as well as Webapp), and the process was generated with Activiti Designer 0.7.0. I attached the BPMN File.

Re: ProcessDiagramGenerator error

walterjs — Mon, 07 Feb 2011 16:42:18 GMT

I got the same thing when I used the repository service to get the deployment because the activities list is empty. When I run it with the following code, I get one step further as the activities are set:

ProcessDiagramGenerator.generateDiagram((ProcessDefinitionEntity) execution.getProcessDefinition(), "png", execution.findActiveActivityIds());

Is this intentional?

Thanks
Walter

Re: ProcessDiagramGenerator error

ahmetkara — Mon, 07 Feb 2011 16:48:44 GMT

Hi,

If I import the process using probe, it generates the image successfully. Are you running 5.2?

Yes, I am using 5.2. And I still have the same problem, couldn't solve it.

Re: ProcessDiagramGenerator error

h_ter_schuur — Tue, 08 Feb 2011 08:04:28 GMT

The activiti-webapp-rest module uses the following code to get the ProcessDefinitionEntity:

ProcessDefinitionEntity pde = (ProcessDefinitionEntity) ((RepositoryServiceImpl) getRepositoryService())
        .getDeployedProcessDefinition(pi.getProcessDefinitionId());

Such process definition entity seems to have the activities initialized.

Re: ProcessDiagramGenerator error

ahmetkara — Tue, 08 Feb 2011 15:01:34 GMT

The activiti-webapp-rest module uses the following code to get the ProcessDefinitionEntity:
ProcessDefinitionEntity pde = (ProcessDefinitionEntity) ((RepositoryServiceImpl) getRepositoryService()) .getDeployedProcessDefinition(pi.getProcessDefinitionId());Such process definition entity seems to have the activities initialized.

I did like you posted but unfortunately again the failure.

The error is below.

Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -2
at java.lang.String.substring(Unknown Source)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramCanvas.fitTextToWidth(ProcessDiagramCanvas.java:327)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramCanvas.drawTask(ProcessDiagramCanvas.java:317)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramCanvas.drawTask(ProcessDiagramCanvas.java:294)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramCanvas.drawUserTask(ProcessDiagramCanvas.java:338)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramGenerator$5.draw(ProcessDiagramGenerator.java:77)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramGenerator.drawActivity(ProcessDiagramGenerator.java:211)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramGenerator.generateDiagram(ProcessDiagramGenerator.java:198)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramGenerator.generateDiagram(ProcessDiagramGenerator.java:205)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramGenerator.generatePngDiagram(ProcessDiagramGenerator.java:184)

Re: ProcessDiagramGenerator error

walterjs — Tue, 08 Feb 2011 15:05:51 GMT

This might be because you don't have any bpmndi information in your BPMN xml. Recreate your bpmn with the 0.7 version of the designer.

Re: ProcessDiagramGenerator error

teinacher — Tue, 08 Feb 2011 15:08:24 GMT

Thank you, h.ter.schuur.

Your hint solved the problem. I can now display the diagrams.

Re: ProcessDiagramGenerator error

frederikherema1 — Tue, 08 Feb 2011 15:09:45 GMT

Hi,

This is an issue that occurs when an activity/gateway/… is found without any width/height info for it. Can you check your XML to check that all activities have a corresponding DI-counterpart (containing x y width height). Also set all "name" properties on activities as well (if not already the case).

Re: ProcessDiagramGenerator error

ahmetkara — Tue, 08 Feb 2011 15:36:10 GMT

Hi,

This is an issue that occurs when an activity/gateway/… is found without any width/height info for it. Can you check your XML to check that all activities have a corresponding DI-counterpart (containing x y width height). Also set all "name" properties on activities as well (if not already the case).

I did what you wrote and I can get the image of my process with the code below, but again I have a question . The image only displays the process, but active task is not highlighted, how I can highlight the active task??

ProcessDefinitionEntity pde = (ProcessDefinitionEntity) ((RepositoryServiceImpl) getProcessEngine().getRepositoryService())
.getDeployedProcessDefinition(selecetedProcessInstance.getProcessDefinitionId());

InputStream imageStream = ProcessDiagramGenerator.generatePngDiagram(pde);

Re: ProcessDiagramGenerator error

ronald_van_kuij — Tue, 08 Feb 2011 15:52:40 GMT

Look at the code in the probe webapp. It has been done there.

Re: ProcessDiagramGenerator error

h_ter_schuur — Tue, 08 Feb 2011 15:56:36 GMT

You can use the more generic generateDiagram(processDefinition, imageTime, highlightedActivities)

For example:

ProcessDiagramGenerator.generateDiagram(pde, "png", getRuntimeService().getActiveActivityIds(selecetedProcessInstance.getId()))

Best regards,

Re: ProcessDiagramGenerator error

ahmetkara — Tue, 08 Feb 2011 16:06:25 GMT

Thank you very very much, I did with your helpss, thanks to you especially Hinse ter Schuur.

Re: ProcessDiagramGenerator error

future_makers — Tue, 26 Apr 2011 06:18:44 GMT

HI,

I USED THIS CODE AND IT WORKING WITH ME

ActivitiServiceImpl activitiService = (ActivitiServiceImpl) ServiceFinder.getContext(request).getBean("activitiService");
RepositoryService repositoryService = activitiService.getRepositoryService();
ProcessDefinition processDef=repositoryService.createProcessDefinitionQuery().deploymentId(processId).
orderByProcessDefinitionVersion().desc().singleResult();
ProcessInstance processInstance=activitiService.getRuntimeService().startProcessInstanceById(processDef.getId());
ProcessDefinitionEntity pde = (ProcessDefinitionEntity) ((RepositoryServiceImpl) repositoryService).getDeployedProcessDefinition(processDef.getId());
activitiService.getRuntimeService().getActiveActivityIds(processInstance.getId());
   if(pde!=null){
    InputStream imageStream=ProcessDiagramGenerator.generateDiagram(pde, "png", activitiService.getRuntimeService().getActiveActivityIds(processInstance.getId()));
    //InputStream imageStream=ProcessDiagramGenerator.generatePngDiagram(pde);

    BufferedInputStream input = null;
          BufferedOutputStream output = null;

          try {
              // Open streams.
              input = new BufferedInputStream(imageStream );
              output = new BufferedOutputStream(response.getOutputStream() );

              // Write file contents to response.
              byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
              int length;
              while ((length = input.read(buffer)) > 0) {
                  output.write(buffer, 0, length);
              }

          } finally {
              // Gently close streams.
              close(output);
              close(input);
          }

Re: ProcessDiagramGenerator error

burn83 — Wed, 02 Jan 2013 10:16:59 GMT

Hello to everybody…

I try to render a diagram with current status of my process highlited!!

But i have found same problem:


java.awt.image.RasterFormatException: (x + width) is outside raster
 sun.awt.image.IntegerInterleavedRaster.createWritableChild(IntegerInterleavedRaster.java:467)
 java.awt.image.BufferedImage.getSubimage(BufferedImage.java:1173)
 org.activiti.engine.impl.bpmn.diagram.ProcessDiagramCanvas.generateImage(ProcessDiagramCanvas.java:173)
 org.activiti.engine.impl.bpmn.diagram.ProcessDiagramGenerator.generateDiagram(ProcessDiagramGenerator.java:302)
 org.apache.jsp.index_jsp._jspService(index_jsp.java:263)
 org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)

etc….

My code is the follow:
//first part
ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
.processDefinitionId(process_definition)
.singleResult();

List<String> s = runtimeService.getActiveActivityIds(processelected);

//now the second part..the line with the problem mentioned above..
InputStream imageStream_agg = ProcessDiagramGenerator.generateDiagram((ProcessDefinitionEntity)processDefinition, "png", s);

My version of Activiti is 5.10 … anybody can help me?!

Ps: the first part of this code is functionally, it loads correctly the image with no highlight…