| /*=============================================================================# |
| # Copyright (c) 2007, 2021 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.ltk.ui; |
| |
| import static org.eclipse.statet.ltk.ui.LtkUI.BUNDLE_ID; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import org.eclipse.core.filebuffers.ITextFileBuffer; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.text.AbstractDocument; |
| import org.eclipse.jface.text.DocumentRewriteSession; |
| import org.eclipse.jface.text.ISynchronizable; |
| |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| |
| import org.eclipse.statet.ecommons.ui.util.UIAccess; |
| |
| import org.eclipse.statet.ltk.model.core.element.SourceDocumentRunnable; |
| import org.eclipse.statet.ltk.model.core.element.SourceUnit; |
| |
| |
| /** |
| * BasicWorkingBuffer using {@link ITextFileBuffer}. |
| * <p> |
| * Usually used for editors / the editor context.</p> |
| */ |
| @NonNullByDefault |
| public class FileBufferWorkingBuffer extends org.eclipse.statet.ltk.model.core.impl.FileBufferWorkingBuffer { |
| |
| |
| public static void syncExec(final SourceDocumentRunnable runnable) |
| throws InvocationTargetException { |
| final AtomicReference<InvocationTargetException> error= new AtomicReference<>(); |
| UIAccess.getDisplay().syncExec(new Runnable() { |
| @Override |
| public void run() { |
| Object docLock= null; |
| final AbstractDocument document= runnable.getDocument(); |
| if (document instanceof ISynchronizable) { |
| docLock= ((ISynchronizable) document).getLockObject(); |
| } |
| if (docLock == null) { |
| docLock= new Object(); |
| } |
| |
| DocumentRewriteSession rewriteSession= null; |
| try { |
| if (runnable.getRewriteSessionType() != null) { |
| rewriteSession= document.startRewriteSession(runnable.getRewriteSessionType()); |
| } |
| synchronized (docLock) { |
| if (runnable.getStampAssertion() > 0 && document.getModificationStamp() != runnable.getStampAssertion()) { |
| throw new CoreException(new Status(IStatus.ERROR, BUNDLE_ID, |
| "Document out of sync (usuallly caused by concurrent document modifications)." )); |
| } |
| runnable.run(); |
| } |
| } |
| catch (final InvocationTargetException e) { |
| error.set(e); |
| } |
| catch (final Exception e) { |
| error.set(new InvocationTargetException(e)); |
| } |
| finally { |
| if (rewriteSession != null) { |
| document.stopRewriteSession(rewriteSession); |
| } |
| } |
| } |
| }); |
| if (error.get() != null) { |
| throw error.get(); |
| } |
| } |
| |
| |
| public FileBufferWorkingBuffer(final SourceUnit unit) { |
| super(unit); |
| } |
| |
| |
| } |