RE: [pde-dev] IFile.exists() always returns false

["Donald E. Stinchfield" <des@xxxxxxxx>]

Thank you Alessandro.  Here is the follow up to your question.

I create the project with the following code:

 project=ResourcesPlugin.getWorkspace().getRoot().getProject( "myProject");
 IProgressMonitor mon = (IProgressMonitor) new NullProgressMonitor();
 project.create( mon ); 
 project.open  ( mon );

I save the project so I can easily fetch it with getProject().  I always
check that the project exists and ensure it is open before I continue with
the following code.

 IProject project = getProject();
 if (project.exists() && !project.isOpen())
   project.open(null);
 
I have a method that takes IContainer as a parameter.  The purpose of the
method is to copy files out of a database and into my workspace.  I call the
routine by casting project to IContainer.  For example, 

 loadSubtree(source, (IContainer)project);

The problem is in loadSubtree().  Note, just before calling loadSubtree() I
created the project, verified it exists, and made user it is open just
before making the call to loadSubtree.

private void loadSubtree (MyDB source, IContainer toContainer )
    .
    .
    .

   IPath workspaceIPath = new Path(absolutePathToFile);
   IFile toFile = toContainer.getFile(workspaceIPath);
   toFile.refreshLocal(IResource.DEPTH_INFINITE, null);
   if (toFile.exists())
      toFile.setPersistentProperty(MY_KEY,  "Some string");
    .
    .
    .

I'm sure I have the correct project.  If I let the code run I see the
project in navigator loaded with all the files I put in the workspace.  The
problem is toFile.exists() always returns false so I'm never able to set a
persistent property on my file. I must be doing something wrong.


> -----Original Message-----
> From: pde-dev-bounces@xxxxxxxxxxx [mailto:pde-dev-bounces@xxxxxxxxxxx] On
> Behalf Of Alessandro Assab
> Sent: Wednesday, January 17, 2007 5:42 AM
> To: Eclipse PDE general developers list.
> Subject: Re: [pde-dev] IFile.exists() always returns false
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Donald E. Stinchfield wrote:
> > <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal,
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> > {page:Section1;} -->
> >
> > From my plugin code I have created a new file in my workspace and am
> > adding it to my project using the following code:
> >
> >
> >
> >                     IPath workspaceIPath = *new*
> > Path(absolutePathToFile);
> >
> >                     IFile toFile = toContainer.getFile(workspaceIPath);
> >
> What's return *toContainer*? If the last method return the *project*
> in which the file exist, are you sure that it's the correct project?
> The following code is an example to my implementation.
> 
>         IWorkspace workspace = ResourcesPlugin.getWorkspace();
>         IWorkspaceRoot root = workspace.getRoot();
>         if (root.getProjects()!=null && root.getProjects().length>0)
>         {
>             //
>             for (int i=0; i<root.getProjects().length;i++)
>             {
>                 //
>                 try
>                 {
>                     if (root.getProjects()[i].isOpen())
>                     {
>                         root.getProjects()[i].open(null);
>                     }
>                        root.getProjects()[i].getFile(...);
>                 }
>                 catch (CoreException e)
>                 {
>                     // TODO Auto-generated catch block
>                     e.printStackTrace();
> //                }
>             }
>         }
> >
> >
> >
> > I don't bother calling toFile.create() since the file is already
> > there, plus from the navigator I see my new file in the project.
> >  All looks good so far.
> >
> >
> >
> > The problem is I want to set a property value on the file as soon as
> > I add it to the workspace.  I'm using the following updated code
> >
> >
> >
> >                     IPath workspaceIPath = *new*
> > Path(absolutePathToFile);
> >
> >                     IFile toFile = toContainer.getFile(workspaceIPath);
> >
> >                     toFile.refreshLocal(IResource./DEPTH_INFINITE/,
> > *null*);
> >
> >                     *if* (toFile.exists())
> >
> >                         toFile.setPersistentProperty(/MY_KEY/,
> >  "Some string");
> >
> >
> >
> > toFile.exists() always returns false.  I thought refreshLocal()
> > would take care of it, but it doesn't.  I've tried a bunch of things
> > and have searched through the bug list and mailing lists.  I haven't
> > come up with anything.  Any thoughts?
> >
> >
> >
> > Regards,
> >
> > Don
> >
> >
> >
> > * *
> >
> >
> >
> >
> >
> >
> > ----------------------------------------------------------------------
> >
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> > pde-dev@xxxxxxxxxxx
> > https://dev.eclipse.org/mailman/listinfo/pde-dev
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