Java Code Examples for org.eclipse.core.resources.IFile#isLinked()

public static IFile getLinkedFileUnchecked(IContainer project, String name, boolean createNew) throws CoreException
{
    if (name == null || project == null)
    {
        return null;
    }
    IPath location = new Path(name);
    IFile file = project.getFile(new Path(location.lastSegment()));
    if (createNew)
    {
        if (!file.isLinked())
        {
                file.createLink(location, IResource.NONE, new NullProgressMonitor());
                return file;
        }
        if (file.exists())
        {
            return file;
        } else
        {
            return null;
        }
    }
    return file;
}
 

public static IEditorPart openFileInWorkspace(final URI uri) throws PartInitException {
	final IFile file = FileUtils.getWorkspaceFile(uri);
	if (file == null) {
		MessageDialog.openWarning(WorkbenchHelper.getShell(), "No file found",
				"The file'" + uri.toString() + "' cannot be found.");
		return null;
	}
	if (file.isLinked()) {
		if (!NavigatorRoot.getInstance().getManager().validateLocation(file)) {
			MessageDialog.openWarning(WorkbenchHelper.getShell(), "No file found", "The file'"
					+ file.getRawLocation() + "' referenced by '" + file.getName() + "' cannot be found.");
			return null;
		}
	}
	return IDE.openEditor(PAGE, file);
}
 

/**
 * Sets the content. The XCAS {@link InputStream} gets parsed.
 *
 * @param casFile the new content
 * @throws CoreException the core exception
 */
private void setContent(IFile casFile) throws CoreException {

  IPreferenceStore store = CasEditorPlugin.getDefault().getPreferenceStore();
  boolean withPartialTypesystem = store
          .getBoolean(AnnotationEditorPreferenceConstants.ANNOTATION_EDITOR_PARTIAL_TYPESYSTEM);

  URI uri = casFile.getLocationURI();
  if (casFile.isLinked()) {
    uri = casFile.getRawLocationURI();
  }
  File file = EFS.getStore(uri).toLocalFile(0, new NullProgressMonitor());
  try {
    format = CasIOUtils.load(file.toURI().toURL(), null, mCAS, withPartialTypesystem);
  } catch (IOException e) {
    throwCoreException(e);
  }

}
 

/**
 * Retrieves a a resource from the project, creates a link if createNew is true and the file is not present 
 * TODO improve this, if the name is wrong
 * 
 * @param name full filename of the resource
 * @param project
 * @param createNew, a boolean flag indicating if the new link should be created if it does not exist
 */
public static IFile getLinkedFile(IContainer project, String name, boolean createNew)
{
    if (name == null || project == null)
    {
        return null;
    }
    IPath location = new Path(name);
    IFile file = project.getFile(new Path(location.lastSegment()));
    if (createNew)
    {
        if (!file.isLinked())
        {
            try
            {
                file.createLink(location, IResource.NONE, new NullProgressMonitor());
                return file;

            } catch (CoreException e)
            {
                Activator.getDefault().logError("Error creating resource link to " + name, e);
            }
        }
        if (file.exists())
        {
            return file;
        } else
        {
            return null;
        }
    }
    return file;
}
 

IFile createUnclassifiedModelsProjectAndAdd(final IPath location) {
	IFile iFile = null;
	try {
		final IFolder modelFolder = createUnclassifiedModelsProject(location);
		iFile = modelFolder.getFile(location.lastSegment());
		if ( iFile.exists() ) {
			if ( iFile.isLinked() ) {
				final IPath path = iFile.getLocation();
				if ( path.equals(location) ) {
					// First case, this is a linked resource to the same location. In that case, we simply return
					// its name.
					return iFile;
				} else {
					// Second case, this resource is a link to another location. We create a filename that is
					// guaranteed not to exist and change iFile accordingly.
					iFile = createUniqueFileFrom(iFile, modelFolder);
				}
			} else {
				// Third case, this resource is local and we do not want to overwrite it. We create a filename that
				// is guaranteed not to exist and change iFile accordingly.
				iFile = createUniqueFileFrom(iFile, modelFolder);
			}
		}
		iFile.createLink(location, IResource.NONE, null);
		// RefreshHandler.run();
		return iFile;
	} catch (final CoreException e) {
		e.printStackTrace();
		MessageDialog.openInformation(Display.getDefault().getActiveShell(), "Error in creation",
			"The file " + (iFile == null ? location.lastSegment() : iFile.getFullPath().lastSegment()) +
				" cannot be created because of the following exception " + e.getMessage());
		return null;
	}
}
 

public boolean validateLocation(final IFile resource) {
	if (!resource.isLinked()) { return true; }
	if (DEBUG.IS_ON()) {
		DEBUG.OUT("Validating link location of " + resource);
	}
	final boolean internal =
			ResourcesPlugin.getWorkspace().validateLinkLocation(resource, resource.getLocation()).isOK();
	if (!internal) { return false; }
	final IFileStore file = EFS.getLocalFileSystem().getStore(resource.getLocation());
	final IFileInfo info = file.fetchInfo();
	return info.exists();
}
 

/**
 * Projects can have linked files (resources more generally). Linked resources a listed in the
 * project's .project metadata.
 * 
 * @param project The project of which the given file (name) is assumed to be a linked file
 * @param name The name of the link
 * @return true iff the given name is indeed a *linked* file of the given project.
 */
public static boolean isLinkedFile(IProject project, String name) throws CoreException {
       final IFile file = project.getFile(new Path(new Path(name).lastSegment()));
       return file.isLinked(IResource.CHECK_ANCESTORS);
}