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Variables can be defined within the <task> or <process> tag.
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<variables>
<var name="configdir">${jobdirroot}/config</var>
<var name="mcSrcIdfile">${outdir}/${pipeline.task}-${sixdigstream}_mcsrcId.txt</var>
<var name="jobdirroot">/nfs/farm/g/glast/u26/MC-tasks/${pipeline.task}/</var>
<var name="outdir">${jobdirroot}/output/${sixdigstream}</var>
<var name="scDatafileLD">${LDprefix}/scData:run-${sixdigstream}</var>
<var name="mcSrcIdfileLD">${LDprefix}/mcSrcId:run-${sixdigstream}</var>
<var name="scDatafile">${outdir}/${pipeline.task}-${sixdigstream}_scData_0000.fits</var>
<var name="eventfile">${outdir}/${pipeline.task}-${sixdigstream}_events_0000.fits</var>
<var name="LDprefix">/ServiceChallenge/${pipeline.task}</var>
<var name="sixdigstream">${format(pipeline.stream,"%06d")}</var>
<var name="eventfileLD">${LDprefix}/events:run-${sixdigstream}</var>
</variables>
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If it is required for a batch job to access a variable from a previous process this can be achieved by explicitly setting a variable in the process which defines the job.
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<process name="stepB">
<notation>Scriptlet Test Step B</notation>
<variables>
<var name="DERIVED">Stream ${pipeline.stream} ${pipeline.getProcessInstance("stepA").getVariable("message")}</var>
</variables>
<job>
pipeline-set message "Hello from batch: ${DERIVED}"
</job>
<depends>
<after process="stepA"/>
</depends>
</process>
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The following example shows many of the features discussed above.
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<?xml version="1.0" encoding="UTF-8"?>
<pipeline
xmlns="http://glast-ground.slac.stanford.edu/pipeline"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://glast-ground.slac.stanford.edu/pipeline http://glast-ground.slac.stanford.edu/Pipeline-II/schemas/2.0/pipeline.xsd">
<task name="ScriptletTest" version="2.2" type="Data">
<notation>Just Testing</notation>
<process name="step1">
<notation>Scriptlet Test Step 1</notation>
<!--
<script language="python">
<![CDATA[
pipeline.setVariable("message","Hello from Step1")
for i in range(10,12):
pipeline.createSubstream("TestSubtask",i)
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