topic Re: ProcessDiagramGenerator throws RasterFormatException in Alfresco Archive

ProcessDiagramGenerator throws RasterFormatException

m2spring — Wed, 28 Nov 2012 23:40:01 GMT

The ProcessDiagramGenerator in 5.10 gives this on a BPMN created with Designer 5.9:java.awt.image.RasterFormatException: (x + width) is outside raster at sun.awt.image.IntegerInterleavedRaster.createWritableChild(IntegerInterleavedRaster.java:450) at java.awt.image.BufferedImage.getSub

Re: ProcessDiagramGenerator throws RasterFormatException

trademak — Thu, 29 Nov 2012 10:33:25 GMT

Hi Max,

When do you get this error? I just added the bpmn in my Designer but it's working fine for me.

Best regards,

Re: ProcessDiagramGenerator throws RasterFormatException

m2spring — Thu, 29 Nov 2012 16:00:02 GMT

Hi Tijs,

I get the error when I run the unit test of this project:
https://github.com/jenkinsci/jenkow-plugin/tree/master/activiti-tests/gendiag

The very purpose of this project is to make it easy for you to reproduce the test:


git clone git://github.com/jenkinsci/jenkow-plugin.git
cd jenkow-plugin/activiti-tests/gendiag
mvn clean test

Regards,
-Max

Re: ProcessDiagramGenerator throws RasterFormatException

jbarrez — Fri, 30 Nov 2012 10:44:36 GMT

I remember I fixed such a bug for 5.11. Would you be able to test it with 5.11 now we have a branch for it?

Re: ProcessDiagramGenerator throws RasterFormatException

m2spring — Sat, 01 Dec 2012 00:16:49 GMT

Running with 5.11 no longer gives the same exception, but it doesn't result in the correct diagram.
The resulting PNG is 10x10 pixels and empty.

I've modified my test code to follow the Activiti unit test template:
https://github.com/jenkinsci/jenkow-plugin/tree/master/activiti-tests/gendiag2


git clone git://github.com/jenkinsci/jenkow-plugin.git
cd jenkow-plugin/activiti-tests/gendiag2 
mvn clean test

See resulting diagram: target/diag.png
Same happens with 5.12-SNAPSHOT.
-Max

Re: ProcessDiagramGenerator throws RasterFormatException

jbarrez — Mon, 03 Dec 2012 13:45:10 GMT

I checked your code, and this line will never work:


  InputStream ds = ProcessDiagramGenerator.generatePngDiagram((ProcessDefinitionEntity)pDef);

Because the ProcessDiagramGenerator needs a 'deployed' version of the process. The process definition you pass doesn't have any parse info, and hence no diagram interchange information.

However, there is a much easier way to get the diagram, as it gets generated when you deploy:


 InputStream ds = repoSvc.getResourceAsStream(d.getId(), "/diagrams/GenDiag.gendiag.png");
 OutputStream os = new FileOutputStream("target/diag_joram.png");
 IOUtils.copy(ds,os);
 os.close();

That produces the diagram nicely using 5.11.

Re: ProcessDiagramGenerator throws RasterFormatException

m2spring — Tue, 04 Dec 2012 00:22:23 GMT

Thanks Joram, this approach even works with 5.10.
Regards,
-Max