| /******************************************************************************* |
| * Copyright (c) 2000, 2018 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.team.internal.ccvs.ui; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.InputStream; |
| import java.lang.reflect.InvocationTargetException; |
| |
| import org.eclipse.compare.*; |
| import org.eclipse.compare.structuremergeviewer.IStructureComparator; |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.jface.operation.IRunnableWithProgress; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.team.core.TeamException; |
| import org.eclipse.team.core.history.IFileRevision; |
| import org.eclipse.team.core.variants.IResourceVariant; |
| import org.eclipse.team.internal.ccvs.core.ICVSRemoteResource; |
| import org.eclipse.team.internal.ui.TeamUIPlugin; |
| import org.eclipse.team.internal.ui.history.FileRevisionEditorInput; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.texteditor.IDocumentProvider; |
| |
| /** |
| * A class for comparing ICVSRemoteResource objects |
| */ |
| public class ResourceEditionNode implements IStructureComparator, ITypedElement, IEncodedStreamContentAccessor, IAdaptable { |
| private ICVSRemoteResource resource; |
| private ResourceEditionNode[] children; |
| private ISharedDocumentAdapter sharedDocumentAdapter; |
| private IEditorInput editorInput; |
| |
| /** |
| * Creates a new ResourceEditionNode on the given resource edition. |
| */ |
| public ResourceEditionNode(ICVSRemoteResource resourceEdition) { |
| this.resource = resourceEdition; |
| } |
| |
| /** |
| * Returns true if both resources names are identical. |
| * The content is not considered. |
| * @see IComparator#equals |
| */ |
| public boolean equals(Object other) { |
| if (other instanceof ITypedElement) { |
| String otherName = ((ITypedElement)other).getName(); |
| return getName().equals(otherName); |
| } |
| return super.equals(other); |
| } |
| |
| /** |
| * Enumerate children of this node (if any). |
| */ |
| public Object[] getChildren() { |
| if (children == null) { |
| children = new ResourceEditionNode[0]; |
| if (resource != null) { |
| try { |
| CVSUIPlugin.runWithProgress(null, true /*cancelable*/, new IRunnableWithProgress() { |
| public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { |
| try { |
| ICVSRemoteResource[] members = resource.members(monitor); |
| children = new ResourceEditionNode[members.length]; |
| for (int i = 0; i < members.length; i++) { |
| children[i] = new ResourceEditionNode(members[i]); |
| } |
| } catch (TeamException e) { |
| throw new InvocationTargetException(e); |
| } |
| } |
| }); |
| } catch (InterruptedException e) { |
| // operation canceled |
| } catch (InvocationTargetException e) { |
| Throwable t = e.getTargetException(); |
| if (t instanceof TeamException) { |
| CVSUIPlugin.log(((TeamException) t)); |
| } |
| } |
| } |
| } |
| return children; |
| } |
| |
| /** |
| * @see IStreamContentAccessor#getContents() |
| */ |
| public InputStream getContents() throws CoreException { |
| IStorage storage = getStorage(); |
| if (storage != null) { |
| return storage.getContents(); |
| } |
| return new ByteArrayInputStream(new byte[0]); |
| } |
| |
| public Image getImage() { |
| return CompareUI.getImage(resource); |
| } |
| |
| /** |
| * Returns the name of this node. |
| */ |
| public String getName() { |
| return resource == null ? "" : resource.getName(); //$NON-NLS-1$ |
| } |
| |
| public ICVSRemoteResource getRemoteResource() { |
| return resource; |
| } |
| |
| /** |
| * Returns the comparison type for this node. |
| */ |
| public String getType() { |
| if (resource == null) { |
| return UNKNOWN_TYPE; |
| } |
| if (resource.isContainer()) { |
| return FOLDER_TYPE; |
| } |
| String name = resource.getName(); |
| name = name.substring(name.lastIndexOf('.') + 1); |
| return name.length() == 0 ? UNKNOWN_TYPE : name; |
| } |
| |
| /** |
| * @see IComparator#equals |
| */ |
| public int hashCode() { |
| return getName().hashCode(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.compare.IEncodedStreamContentAccessor#getCharset() |
| */ |
| public String getCharset() throws CoreException { |
| // Use the local file encoding if there is one |
| IResource local = resource.getIResource(); |
| if (local != null && local.getType() == IResource.FILE) { |
| return ((IFile)local).getCharset(); |
| } |
| // See if the remote file has an encoding |
| IStorage storage = getStorage(); |
| if (storage instanceof IEncodedStorage) { |
| String charset = ((IEncodedStorage)storage).getCharset(); |
| if (charset != null) { |
| return charset; |
| } |
| } |
| return null; |
| } |
| |
| private IStorage getStorage() throws TeamException { |
| if (resource == null) { |
| return null; |
| } |
| final IStorage[] holder = new IStorage[1]; |
| try { |
| CVSUIPlugin.runWithProgress(null, true /*cancelable*/, new IRunnableWithProgress() { |
| public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { |
| try { |
| holder[0] = ((IResourceVariant)resource).getStorage(monitor); |
| } catch (TeamException e) { |
| throw new InvocationTargetException(e); |
| } |
| } |
| }); |
| } catch (InvocationTargetException e) { |
| throw TeamException.asTeamException(e); |
| } catch (InterruptedException e) { |
| // Shouldn't happen. Ignore |
| } |
| return holder[0]; |
| } |
| |
| public <T> T getAdapter(Class<T> adapter) { |
| if (adapter == ISharedDocumentAdapter.class) { |
| synchronized (this) { |
| if (sharedDocumentAdapter == null) |
| sharedDocumentAdapter = new SharedDocumentAdapter() { |
| public IEditorInput getDocumentKey(Object element) { |
| return ResourceEditionNode.this |
| .getDocumentKey(element); |
| } |
| |
| public void flushDocument(IDocumentProvider provider, |
| IEditorInput documentKey, IDocument document, |
| boolean overwrite) throws CoreException { |
| // The document is read-only |
| } |
| }; |
| return adapter.cast(sharedDocumentAdapter); |
| } |
| } |
| return Platform.getAdapterManager().getAdapter(this, adapter); |
| } |
| |
| private IEditorInput getDocumentKey(Object element) { |
| try { |
| if (element == this && getStorage() != null) { |
| if (editorInput == null) { |
| editorInput = new FileRevisionEditorInput(resource |
| .getAdapter(IFileRevision.class), getStorage()); |
| } |
| return editorInput; |
| } |
| } catch (TeamException e) { |
| TeamUIPlugin.log(e); |
| } |
| return null; |
| } |
| } |