org.eclipse.core.internal.resources.File Java Examples

/**
 * Check whether selected file(s) matches set of extensions 
 * 
 * @param receiver selected file(s)
 * @param fileExtensions set of extensions to compare
 * @return true if selected file(s) matches at least one extensions, false otherwise.
 */
@SuppressWarnings({"unchecked", "restriction"})
protected boolean testSelectedFilesByExtensions(final Object receiver, final Set<String> fileExtensions) {
	boolean isValid = false;
	
	if (receiver instanceof Set) {
		final Set<Object> activeEditorSet = (Set<Object>) receiver;

		if (activeEditorSet.size() == 1 && activeEditorSet.iterator().next() instanceof TextSelection) {
			isValid = fileExtensions.contains(EclipseFileUtils.getActiveEditorFile().getFileExtension());
		}
	} else if (receiver instanceof List) {
		final List<Object> fileList = (List<Object>) receiver;
		
		if( !fileList.isEmpty() ) {
			isValid = fileList.stream()
							.filter(file -> file instanceof File)
							.map(File.class::cast)
							.map(File::getFileExtension)
							.allMatch(fileExtensions::contains);
		}
		
	}
	return isValid;
}
 

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
	ISelection selection = HandlerUtil.getActiveWorkbenchWindow(event)
            .getActivePage().getSelection();
	if(selection instanceof TreeSelection) {
		TreeSelection treeSelection = (TreeSelection) selection;
		if(treeSelection.getFirstElement() instanceof File) {
			File file = (File) treeSelection.getFirstElement();
			if(file.getFileExtension().equals("bib")){
				WorkspaceBibTexEntry entry = wm.getWorkspaceBibTexEntryByUri(file.getLocationURI());
				if(entry != null) {
					if(entry.getMendeleyFolder() != null) {
						// by setting the MendeleyFolder of a WorkspaceBibTexEntry to null, the connection will be removed
						entry.setMendeleyFolder(null);
						decoratorManager.update("de.tudresden.slr.model.mendeley.decorators.MendeleyOverlayDecorator");
					}
				}
			}
		}
	}
	return null;
}
 

private static File createFile(IPath workspaceRelativeAbsPathOfFile, String contents) throws CoreException {
  // TODO: Convert to ResouceUtils.createFile
  Workspace workspace = (Workspace) ResourcesPlugin.getWorkspace();
  File file = (File) workspace.newResource(workspaceRelativeAbsPathOfFile, IResource.FILE);
  ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(contents.getBytes());
  file.create(byteArrayInputStream, false, null);
  JobsUtilities.waitForIdle();
  return file;
}
 

@Override
public String decorateText(String text, Object element) {
	/*
	 * - decorates only .bib files 
	 * - 	if there is a WorkSpaceBibTexEntry for a .bib file that holds an instance of a MendeleyFolder,
	 * 		the Folder Name will be placed next to the .bib file name
	 */
	if(element instanceof File) {
		File file = (File) element;
		if(file.getFileExtension().equals("bib")) {
			WorkspaceBibTexEntry entry = wm.getWorkspaceBibTexEntryByUri(file.getLocationURI());
			if(entry != null) {
				if(entry.getMendeleyFolder() != null) {
					String folder_name = entry.getMendeleyFolder().getName();
					
					//checks if .bib file is already decorated
					if(!text.contains("[" + folder_name + "]")) {
						String new_text = text + "  [" + folder_name + "]";
						return new_text;
					}
				}
			}
			// the main menu entry 'Mendeley -> Update Folders' must be disabled when no file is decorated
			updateMenuContribution();
		}
	}
	return null;
}
 

public File addFileToTestProjSrcPkg(String fileName, String[] contentArray) throws CoreException {
  IPath pathToFile = getTestProject().getPath().append("src").append(fileName);
  File file = createFile(pathToFile, createString(contentArray));
  return file;
}