[kepler-users] changing MoML parameters

[Ufuk Utku Turuncoglu]

Hi,

I have already try that and it gives different error. I change only line as

MoMLChangeRequest request = new MoMLChangeRequest(toplevel, moml);

and error,

java.lang.RuntimeException: MoMLSimplApplication.changeFailed(): 
<property name="gridftp_srv" 
value="gridftpppp.frost.ncar.teragrid.org"/> failed:
   at 
ptolemy.moml.MoMLSimpleApplication.changeFailed(MoMLSimpleApplication.java:167) 

   at ptolemy.kernel.util.ChangeRequest.execute(ChangeRequest.java:204)
   at ptolemy.kernel.util.NamedObj.executeChangeRequests(NamedObj.java:699)
   at ptolemy.kernel.util.NamedObj.requestChange(NamedObj.java:1686)
   at ptolemy.actor.CompositeActor.requestChange(CompositeActor.java:1347)
   at org.earth.loader.JobMail.fire(JobMail.java:119)
   at org.earth.loader.JobMail.print(JobMail.java:229)
   at org.earth.loader.CheckMailBox.run(KeplerEarth.java:216)
   at java.lang.Thread.run(Thread.java:637)
Caused by: com.microstar.xml.XmlException: Cannot find a suitable 
constructor (2 args) (class ptolemy.kernel.util.Workspace = 
"ptolemy.kernel.util.Workspace {}", class java.lang.String = 
"gridftp_srv") for 'ptolemy.kernel.util.Attribute' in [external stream] 
at line 1 and column 72
   at ptolemy.moml.MoMLParser._createInstance(MoMLParser.java:4179)
   at ptolemy.moml.MoMLParser._handlePropertyElement(MoMLParser.java:5348)
   at ptolemy.moml.MoMLParser.startElement(MoMLParser.java:2866)
   at com.microstar.xml.XmlParser.parseElement(XmlParser.java:931)
   at com.microstar.xml.XmlParser.parseDocument(XmlParser.java:481)
   at com.microstar.xml.XmlParser.doParse(XmlParser.java:159)
   at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
   at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1394)
   at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1367)
   at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1522)
   at ptolemy.moml.MoMLChangeRequest._execute(MoMLChangeRequest.java:270)
   at ptolemy.kernel.util.ChangeRequest.execute(ChangeRequest.java:170)
   ... 7 more

Thanks for help,

--ufuk

Edward A. Lee wrote:
>
> The problem is that context is null, so the MoML parser is trying to
> create an attribute with no container. It tries to put in the Workspace,
> but a naked Attribute can't go in the workspace. Only subclasses of 
> Entity
> can go in the workspace.  I think you want:
>
>   context = toplevel;
>
> rather than
>
>   context = toplevel.getContainer();
>
> Edward
>
>
> Ufuk Utku Turuncoglu wrote:
>> Hi,
>>
>> I try to change parameters of a MoML file but i get following error,
>>
>> java.lang.RuntimeException: MoMLSimplApplication.changeFailed(): 
>> <property name="gridftp_srv" 
>> value="gridftp.frost.ncar.teragrid.org"/> failed:
>>    at 
>> ptolemy.moml.MoMLSimpleApplication.changeFailed(MoMLSimpleApplication.java:167) 
>>
>>    at ptolemy.kernel.util.ChangeRequest.execute(ChangeRequest.java:204)
>>    at 
>> ptolemy.kernel.util.NamedObj.executeChangeRequests(NamedObj.java:699)
>>    at ptolemy.kernel.util.NamedObj.requestChange(NamedObj.java:1686)
>>    at 
>> ptolemy.actor.CompositeActor.requestChange(CompositeActor.java:1347)
>>    at org.earth.loader.JobMail.fire(JobMail.java:146)
>>    at org.earth.loader.JobMail.print(JobMail.java:274)
>>    at org.earth.loader.CheckMailBox.run(KeplerEarth.java:216)
>>    at java.lang.Thread.run(Thread.java:637)
>> Caused by: com.microstar.xml.XmlException: Cannot find a suitable 
>> constructor (2 args) (class ptolemy.kernel.util.Workspace = 
>> "ptolemy.kernel.util.Workspace {}", class java.lang.String = 
>> "gridftp_srv") for 'ptolemy.kernel.util.Attribute' in [external 
>> stream] at line 1 and column 72
>>    at ptolemy.moml.MoMLParser._createInstance(MoMLParser.java:4179)
>>    at 
>> ptolemy.moml.MoMLParser._handlePropertyElement(MoMLParser.java:5348)
>>    at ptolemy.moml.MoMLParser.startElement(MoMLParser.java:2866)
>>    at com.microstar.xml.XmlParser.parseElement(XmlParser.java:931)
>>    at com.microstar.xml.XmlParser.parseDocument(XmlParser.java:481)
>>    at com.microstar.xml.XmlParser.doParse(XmlParser.java:159)
>>    at com.microstar.xml.XmlParser.parse(XmlParser.java:132)
>>    at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1394)
>>    at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1367)
>>    at ptolemy.moml.MoMLParser.parse(MoMLParser.java:1522)
>>    at 
>> ptolemy.moml.MoMLChangeRequest._execute(MoMLChangeRequest.java:270)
>>    at ptolemy.kernel.util.ChangeRequest.execute(ChangeRequest.java:170)
>>    ... 7 more
>>
>> The part of my code as follow,
>>
>>            MoMLParser parser = new MoMLParser();
>>            
>> MoMLParser.setMoMLFilters(BackwardCompatibility.allFilters());
>>            MoMLParser.addMoMLFilter(new RemoveGraphicalClasses());
>>            CompositeActor toplevel = (CompositeActor) 
>> parser.parse(null, new File(wkdir+"/"+wkname).toURI().toURL());
>>                      NamedObj context = toplevel.getContainer();
>>                      // create a manager for composite actor and 
>> execute it
>>            Manager manager = new Manager(toplevel.workspace(), 
>> "Follow-up workflow");
>>            toplevel.setManager(manager);
>>            toplevel.addChangeListener(this);
>>            manager.addExecutionListener(this);
>>                      // get parameters and values
>>            NodeList nodes = (NodeList) 
>> reader.read("//parameters/node()", XPathConstants.NODESET);
>>            for (int i=0; i<nodes.getLength(); i++) {
>>                Node node = nodes.item(i);
>>                              if (node.getNodeType() == 
>> Node.ELEMENT_NODE) {
>>                    String moml = "<property 
>> name=\""+node.getNodeName()+"\" value=\""+node.getTextContent()+"\"/>";
>>                    ChangeRequest request = new 
>> MoMLChangeRequest(context, moml);
>>                    toplevel.requestChange(request);
>>                }
>>                                        }
>>
>> I think that problem is related with definition of MoMLChangeRequest 
>> but i am not sure.  Any suggestion will be helpful.
>>
>> Thanks,
>>
>> --ufuk
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