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StructuredModelManager [message #202898]

Tue, 23 October 2007 08:48

Eclipse User

Hello guys,

I have a question concerning the StructuredTextViewer. I'm using it to
display some piece of HTML. Since I only have the html in form of a
String, I put it into an ByteArrayStream and use this stream to load the
structured model. But I have to big problem.

1) Caching. The ModelManager seens to have some cache. How can I force it
to reload the model?

I have used teh fllowing approach:

structuredModel = modelManager.getModelForEdit("xxx.xxx.xxx.xxx",
inputStream, null);
modelManager.reinitialize(structuredModel);

But this does not solve the problem.

2) Internationalization. No matter how I convert the Stream (UTF-8, ...)
chinse characters are broken every time. Does anybody know how to solve
this issue?

Kind Regards,

Klaus

Re: StructuredModelManager [message #202928 is a reply to message #202898]

Tue, 23 October 2007 13:59

Eclipse User

Klausing wrote:
> I have a question concerning the StructuredTextViewer. I'm using it to
> display some piece of HTML. Since I only have the html in form of a
> String, I put it into an ByteArrayStream and use this stream to load the
> structured model. But I have to big problem.
>
> 1) Caching. The ModelManager seens to have some cache. How can I force
> it to reload the model?
>
> I have used teh fllowing approach:
>
> structuredModel = modelManager.getModelForEdit("xxx.xxx.xxx.xxx",
> inputStream, null);
> modelManager.reinitialize(structuredModel);
>
> But this does not solve the problem.
>
> 2) Internationalization. No matter how I convert the Stream (UTF-8, ...)
> chinse characters are broken every time. Does anybody know how to solve
> this issue?

For your usage you're better off calling
IModelManager.createUnManagedStructuredModelFor(String) where the
String is the HTML Content Type ID. From there you can just set
your HTML into the document. It should help to avoid any encoding
pitfalls. You can find a similar usage in the
HTMLTemplatePreferencePage.

--
Nitin Dahyabhai
Structured Source Editing

Re: StructuredModelManager [message #202963 is a reply to message #202928]

Wed, 24 October 2007 11:51

Eclipse User

Hi, this works great. But until now I release the model from reading. if I
call the release methods now, the following exception will be thrown:

java.lang.IllegalArgumentException: can not release a model without a
document reference
at
org.eclipse.wst.sse.core.internal.FileBufferModelManager.rel easeModel(FileBufferModelManager.java:668)
at
org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.cle anupDiscardedModel(ModelManagerImpl.java:1449)
at
org.eclipse.wst.sse.core.internal.model.ModelManagerImpl.rel easeFromRead(ModelManagerImpl.java:1353)

My code looks like this..

// create moel form string...
structuredModel = modelManager.createUnManagedStructuredModelFor
(ContentTypeIdForHTML.ContentTypeID_HTML); structuredModel.getStructuredDocument().set(mailContent);

// show dialog, let user edit, after save is clicked read the content then
currentModel.releaseFromEdit();
currentModel.releaseFromRead();

Do I have to stop calling this methods?

Klaus

Re: StructuredModelManager [message #203022 is a reply to message #202963]

Wed, 24 October 2007 18:08

Eclipse User

Yes, unmanaged models don't need to be released. You do, however,
need to take care to not otherwise leak them somehow.

--
Nitin Dahyabhai
Structured Source Editing

Re: StructuredModelManager [message #203346 is a reply to message #203022]

Tue, 30 October 2007 04:54

Eclipse User

Hi, I have changed to way the model is handled now in the way you
suggested. This works fine, but now the html content assitant fails Here
is the stacktrace. What have I done wrong.

java.lang.IllegalStateException: problem getting model
at
org.eclipse.wst.xml.ui.internal.contentassist.AbstractConten tAssistProcessor.computeCompletionProposals(AbstractContentA ssistProcessor.java:1283)
at
org.eclipse.wst.html.ui.internal.contentassist.HTMLContentAs sistProcessor.computeCompletionProposals(HTMLContentAssistPr ocessor.java:302)
at
org.eclipse.wst.sse.ui.internal.contentassist.CompoundConten tAssistProcessor.computeCompletionProposals(CompoundContentA ssistProcessor.java:233)
at
org.eclipse.jface.text.contentassist.ContentAssistant.comput eCompletionProposals(ContentAssistant.java:1612)
at
org.eclipse.jface.text.contentassist.CompletionProposalPopup .computeProposals(CompletionProposalPopup.java:473)
at
org.eclipse.jface.text.contentassist.CompletionProposalPopup .access$16(CompletionProposalPopup.java:470)
at
org.eclipse.jface.text.contentassist.CompletionProposalPopup $2.run(CompletionProposalPopup.java:405)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator .java:67)
at
org.eclipse.jface.text.contentassist.CompletionProposalPopup .showProposals(CompletionProposalPopup.java:399)
at
org.eclipse.jface.text.contentassist.ContentAssistant$2.run( ContentAssistant.java:347)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:3 5)
at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchr onizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.jav a:3325)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :2971)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:820 )
at org.eclipse.jface.window.Window.open(Window.java:796)

Re: StructuredModelManager [message #203378 is a reply to message #203346]

Tue, 30 October 2007 13:01

Eclipse User

Klaus Schaefers wrote:
> Hi, I have changed to way the model is handled now in the way you
> suggested. This works fine, but now the html content assitant fails Here
> is the stacktrace. What have I done wrong.
>
>
> java.lang.IllegalStateException: problem getting model
> at
> org.eclipse.wst.xml.ui.internal.contentassist.AbstractConten tAssistProcessor.computeCompletionProposals(AbstractContentA ssistProcessor.java:1283)

Nothing, content assist requires a managed model so it can go from
the source viewer's document to that model.

--
Nitin Dahyabhai
Structured Source Editing

Re: StructuredModelManager [message #203418 is a reply to message #203378]

Thu, 01 November 2007 01:56

Eclipse User

Nitin Dahyabhai wrote:
> Klaus Schaefers wrote:
>> Hi, I have changed to way the model is handled now in the way you
>> suggested. This works fine, but now the html content assitant fails
>> Here is the stacktrace. What have I done wrong.
>>
>>
>> java.lang.IllegalStateException: problem getting model
>> at
>> org.eclipse.wst.xml.ui.internal.contentassist.AbstractConten tAssistProcessor.computeCompletionProposals(AbstractContentA ssistProcessor.java:1283)
>
>
> Nothing, content assist requires a managed model so it can go from the
> source viewer's document to that model.

Just to followup on this, you'd want to go back to the original
method you posted about since the model is shared in that case.
You can try using IStructuredModel.reload(InputStream), or just set
the text into the document as indicated previously.

--
Nitin Dahyabhai
Structured Source Editing

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