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Hi Ravi,<br>
You need to call _top.preinitialize() and _top.initialize() first.<br>
I modified CompositeProcessDirector so that if
_inputBranchController is null, then an InternalErrorException is
thrown:<br>
<br>
Exception in thread "main"
ptolemy.kernel.util.InternalErrorException: _inputBranchController
was null\<br>
? Perhaps initialize() was not called?<br>
in .top.<Unnamed Object><br>
at
ptolemy.actor.process.CompositeProcessDirector._resolveDeadlock(CompositeProcessDirector.ja\<br>
va:701)<br>
at
ptolemy.actor.process.ProcessDirector.fire(ProcessDirector.java:259)<br>
at
ptolemy.actor.CompositeActor.fire(CompositeActor.java:458)<br>
at test.BowtieTest.init(BowtieTest.java:65)<br>
at test.BowtieTest.main(BowtieTest.java:18)<br>
<br>
<br>
See ptolemy/moml/MoMLSimpleApplication.java for how to use
ptolemy/actor/Manager.java to run your model:<br>
<br>
_manager = new Manager(_toplevel.workspace(),
"MoMLSimpleApplication");<br>
_toplevel.setManager(_manager);<br>
_toplevel.addChangeListener(this);<br>
<br>
_manager.addExecutionListener(this);<br>
_activeCount++;<br>
<br>
_manager.startRun();<br>
<br>
Thread waitThread = new UnloadThread();<br>
<br>
// Note that we start the thread here, which
could <br>
// be risky when we subclass, since the thread will
be <br>
// started before the subclass constructor finishes
(FindBugs) <br>
waitThread.start();<br>
waitThread.join();<br>
if (_sawThrowable != null) {<br>
throw _sawThrowable;<br>
}<br>
<br>
For information about initialize(), see Chapter 5, Designing Actors,
page 178 of Volume 1 of the Ptolemy Design Docs at
<a class="moz-txt-link-freetext" href="http://ptolemy.eecs.berkeley.edu/ptolemyII/designdoc.htm">http://ptolemy.eecs.berkeley.edu/ptolemyII/designdoc.htm</a><br>
<br>
_Christopher<br>
<br>
<br>
<br>
On 1/9/12 5:17 AM, Ravi Kumar wrote:
<blockquote
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<div class="WordSection1">
<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am trying to create and run a workflow
programmatically. I have created one and able to run if I use
SDF director. But not able to run this using PNDirector. When
I export the workflow in xml using
<b>exportMoML()</b> method and open the xml file in kepler, it
runs properly.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Following error I am getting when trying to
execute workflow programmatically using PNDirector.<o:p></o:p></p>
<p class="MsoNormal"><b><o:p> </o:p></b></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:red">Exception in thread "main"
</span><u><span
style="font-size:10.0pt;font-family:"Courier
New";color:navy">java.lang.NullPointerException</span></u><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:red"> at
ptolemy.actor.process.CompositeProcessDirector._resolveDeadlock(</span><u><span
style="font-size:10.0pt;font-family:"Courier
New";color:navy">CompositeProcessDirector.java:699</span></u><span
style="font-size:10.0pt;font-family:"Courier
New";color:red">)</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:red"> at
ptolemy.actor.process.ProcessDirector.fire(</span><u><span
style="font-size:10.0pt;font-family:"Courier
New";color:navy">ProcessDirector.java:259</span></u><span
style="font-size:10.0pt;font-family:"Courier
New";color:red">)</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:red"> at
ptolemy.actor.CompositeActor.fire(</span><u><span
style="font-size:10.0pt;font-family:"Courier
New";color:navy">CompositeActor.java:459</span></u><span
style="font-size:10.0pt;font-family:"Courier
New";color:red">)</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;font-family:"Courier
New";color:red"> at test.BowtieTest.init(</span><u><span
style="font-size:10.0pt;font-family:"Courier
New";color:navy">BowtieTest.java:64</span></u><span
style="font-size:10.0pt;font-family:"Courier
New";color:red">)</span><span
style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Courier
New";color:red"> at test.BowtieTest.main(</span><u><span
style="font-size:10.0pt;font-family:"Courier
New";color:navy">BowtieTest.java:18</span></u><span
style="font-size:10.0pt;font-family:"Courier
New";color:red">)</span><b><o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am not able to find out root cause for
this. Any help on this would be really helpful.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Ravi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<br>
<pre class="moz-signature" cols="72">--
Christopher Brooks, PMP University of California
CHESS Executive Director US Mail: 337 Cory Hall
Programmer/Analyst CHESS/Ptolemy/Trust Berkeley, CA 94720-1774
ph: 510.643.9841 (Office: 545Q Cory)
home: (F-Tu) 707.665.0131 cell: 707.332.0670 </pre>
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