parser un fichier JSDL ?

26 May 2010

      JSDL est un dialecte XML pour décrire des jobs :

http://en.wikipedia.org/wiki/Job_Submission_Description_Language

Je pense l'utiliser pour (au moins en partie) pour décrire les jobs sur
Diswork. Deux questions :
* Existe-t-il une lib ? (j'en ai pas trouvé sur le net)
* Si je dois coder le parser, quelle lib utiliser ?

Exemple de fichier JSDL :

<JobDefinition>
   <JobDescription>
      <JobIdentification>
         <JobName>My Gnuplot invocation</JobName>
         <Description> Simple application invocation:
            User wants to run the application 'gnuplot' to
            produce a plotted graphical file based on some data
            shipped in from elsewhere(perhaps as part of a
            workflow). A front-end application will then build
            into an animation of spinning data.
            Front-end application knows URL for data file which
            must be staged-in. Front-end application wants to
            stage in a control file that it specifies directly
            which directs gnuplot to produce the output files.
            In case of error, messages should be produced on
            stderr (also to be staged on completion) and no
            images are to be transferred.
         </Description>
      </JobIdentification>
      <Application>
         <ApplicationName>gnuplot</ApplicationName>
         <jsdl-posix:POSIXApplication>
            <jsdl-posix:Executable>
               /usr/local/bin/gnuplot
            </jsdl-posix:Executable>
            <jsdl-posix:Argument>control.txt</jsdl-posix:Argument>
            <jsdl-posix:Input>input.dat</jsdl-posix:Input>
            <jsdl-posix:Output>output1.png</jsdl-posix:Output>
         </jsdl-posix:POSIXApplication>
      </Application>
      <Resources>
         <IndividualPhysicalMemory>
            <LowerBoundedRange>2097152.0</LowerBoundedRange>
         </IndividualPhysicalMemory>
         <TotalCPUCount>
            <Exact>1.0</Exact>
         </TotalCPUCount>
      </Resources>
      <DataStaging>
         <FileName>control.txt</FileName>
         <CreationFlag>overwrite</CreationFlag>
         <DeleteOnTermination>true</DeleteOnTermination>
         <Source>
            <URI>http://foo.bar.com/~me/control.txt</URI>
         </Source>
      </DataStaging>
      <DataStaging>
         <FileName>input.dat</FileName>
         <CreationFlag>overwrite</CreationFlag>
         <DeleteOnTermination>true</DeleteOnTermination>
         <Source>
            <URI>http://foo.bar.com/~me/input.dat</URI>
         </Source>
      </DataStaging>
      <DataStaging>
         <FileName>output1.png</FileName>
         <CreationFlag>overwrite</CreationFlag>
         <DeleteOnTermination>true</DeleteOnTermination>
         <Target>
            <URI>rsync://spoolmachine/userdir</URI>
         </Target>
      </DataStaging>
   </JobDescription>
</JobDefinition>

Brendan Le Ny

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