| /******************************************************************************* |
| * Copyright (c) 2006, 2011 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.compare.internal.patch; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.InputStream; |
| import java.io.UnsupportedEncodingException; |
| import java.util.List; |
| |
| import org.eclipse.compare.IContentChangeListener; |
| import org.eclipse.compare.IContentChangeNotifier; |
| import org.eclipse.compare.IEditableContent; |
| import org.eclipse.compare.ITypedElement; |
| import org.eclipse.compare.internal.CompareUIPlugin; |
| import org.eclipse.compare.internal.ContentChangeNotifier; |
| import org.eclipse.compare.internal.core.patch.FilePatch2; |
| import org.eclipse.compare.internal.core.patch.HunkResult; |
| import org.eclipse.compare.patch.PatchConfiguration; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.runtime.CoreException; |
| |
| public class UnmatchedHunkTypedElement extends HunkTypedElement implements IContentChangeNotifier, IEditableContent { |
| |
| private ContentChangeNotifier changeNotifier; |
| |
| public UnmatchedHunkTypedElement(HunkResult result) { |
| // An unmatched hunk element is always used for the before state and is full context |
| super(result, false, true); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.compare.IContentChangeNotifier#addContentChangeListener(org.eclipse.compare.IContentChangeListener) |
| */ |
| public synchronized void addContentChangeListener(IContentChangeListener listener) { |
| if (changeNotifier == null) |
| changeNotifier = new ContentChangeNotifier(this); |
| changeNotifier.addContentChangeListener(listener); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.compare.IContentChangeNotifier#removeContentChangeListener(org.eclipse.compare.IContentChangeListener) |
| */ |
| public synchronized void removeContentChangeListener(IContentChangeListener listener) { |
| if (changeNotifier != null) |
| changeNotifier.removeContentChangeListener(listener); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.compare.IEditableContent#isEditable() |
| */ |
| public boolean isEditable() { |
| IFile file = ((WorkspaceFileDiffResult)getHunkResult().getDiffResult()).getTargetFile(); |
| return file != null && file.isAccessible(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.compare.IEditableContent#replace(org.eclipse.compare.ITypedElement, org.eclipse.compare.ITypedElement) |
| */ |
| public ITypedElement replace(ITypedElement dest, ITypedElement src) { |
| // Not supported |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.compare.IEditableContent#setContent(byte[]) |
| */ |
| public void setContent(byte[] newContent) { |
| getPatcher().setManuallyMerged(getHunkResult().getHunk(), true); |
| getPatcher().cacheContents(getDiff(), newContent); |
| if (changeNotifier != null) |
| changeNotifier.fireContentChanged(); |
| } |
| |
| private FilePatch2 getDiff() { |
| return getHunkResult().getDiffResult().getDiff(); |
| } |
| |
| private Patcher getPatcher() { |
| return Patcher.getPatcher(getConfiguration()); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.compare.internal.patch.HunkTypedElement#getContents() |
| */ |
| public InputStream getContents() throws CoreException { |
| // If there are cached contents, use them |
| if (getPatcher().hasCachedContents(getDiff())) |
| return new ByteArrayInputStream(getPatcher().getCachedContents(getDiff())); |
| // Otherwise return the after state of the diff result |
| List lines = getHunkResult().getDiffResult().getAfterLines(); |
| String content = LineReader.createString(getHunkResult().getDiffResult().isPreserveLineDelimeters(), lines); |
| byte[] bytes = null; |
| if (getCharset() != null) |
| try { |
| bytes = content.getBytes(getCharset()); |
| } catch (UnsupportedEncodingException e) { |
| CompareUIPlugin.log(e); |
| } |
| if (bytes == null) |
| bytes = content.getBytes(); |
| return new ByteArrayInputStream(bytes); |
| } |
| |
| private PatchConfiguration getConfiguration() { |
| return getHunkResult().getDiffResult().getConfiguration(); |
| } |
| } |