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ProcessDiagramGenerator error

ahmetkara

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 raster
at sun.awt.image.IntegerInterleavedRaster.createWritableChild(Unknown Source)
at java.awt.image.BufferedImage.getSubimage(Unknown Source)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramCanvas.generateImage(ProcessDiagramCanvas.java:161)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramGenerator.generateDiagram(ProcessDiagramGenerator.java:205)
at org.activiti.engine.impl.bpmn.deployer.ProcessDiagramGenerator.generatePngDiagram(ProcessDiagramGenerator.java:184

Do you have any idea, what is the reason?

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Comments

frederikherema1

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

ahmetkara

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());

frederikherema1

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?

ahmetkara

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.

process.rar

frederikherema1

Hi,

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

teinacher

Hi,

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

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

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.

Process.zip

walterjs

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

ahmetkara

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.

h_ter_schuur

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

ProcessDefinitionEntity pde = (ProcessDefinitionEntity) ((RepositoryServiceImpl) getRepositoryService())<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; .getDeployedProcessDefinition(pi.getProcessDefinitionId());

Such process definition entity seems to have the activities initialized.

ahmetkara

The activiti-webapp-rest module uses the following code to get the ProcessDefinitionEntity:
ProcessDefinitionEntity pde = (ProcessDefinitionEntity) ((RepositoryServiceImpl) getRepositoryService())<br>        .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)

walterjs

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.

teinacher

Thank you, h.ter.schuur.

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

frederikherema1

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).

ahmetkara

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);

ronald_van_kuij

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

h_ter_schuur

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

For example:

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

Best regards,

ahmetkara

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

future_makers

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);
          }

burn83

Hello to everybody…

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

But i have found same problem:

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

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…

jbarrez

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

I remember fixing a bug for this in 5.11. Any chance you could try with that version?

burn83

In 5.10…

<br>List<ProcessInstance> definitionListexec= runtimeService.createProcessInstanceQuery().active().list();<br><br><br> ProcessDefinitionEntity pde = (ProcessDefinitionEntity) ((RepositoryServiceImpl) repositoryService)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; .getDeployedProcessDefinition(definitionListexec.get(i).getProcessDefinitionId());<br>List <String> s = runtimeService.getActiveActivityIds(processelected);<br>InputStream imageStream_agg = ProcessDiagramGenerator.generateDiagram(pde, "png", s);<br>

this works….Thanks to all for any help!!

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