| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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 |
| * Philippe Ombredanne - bug 84808 |
| *******************************************************************************/ |
| package org.eclipse.team.internal.ccvs.ui.operations; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.lang.reflect.InvocationTargetException; |
| |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.team.core.TeamException; |
| import org.eclipse.team.internal.ccvs.core.*; |
| import org.eclipse.team.internal.ccvs.core.resources.RemoteFolder; |
| import org.eclipse.team.internal.ccvs.ui.CVSUIMessages; |
| import org.eclipse.team.internal.ccvs.ui.Policy; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| /** |
| * Operation which checks for the existence of the .project file |
| * in a remote folder, or to retrieve the project name for one or more |
| * folders based on what is in the .project file. |
| * |
| * To check for meta file exitence, the operation can be run |
| * by executing the operation and then checking <code>metaFileExists</code> |
| * Use the retrieveContent as false in the constructor, to avoid the |
| * overhead of retrieving the file content too. |
| * |
| * To update the folders with project names, the operation can be run |
| * by calling the static method <code>updateFoldersWithProjectName</code> |
| * or by executing the operation and then checking <code>getUpdatedFolders</code> |
| * to retrieve updated folders. |
| * Use the retrieveContent as true in the constructor to retrieve the content. |
| * |
| * The <code>metaFileExists</code> flag is always updated regardless of the |
| * retrieveContent constructor argument value |
| */ |
| public class ProjectMetaFileOperation extends CVSOperation { |
| |
| private ICVSRemoteFolder[] remoteFolders; |
| private boolean metaFileExists; |
| private boolean retrieveContent; |
| |
| /* |
| * Update a list of folders with their project names |
| * for those folders that have one. |
| */ |
| public static ICVSRemoteFolder[] updateFoldersWithProjectName(IWorkbenchPart part, ICVSRemoteFolder[] folders) |
| throws InvocationTargetException, InterruptedException { |
| ProjectMetaFileOperation op = new ProjectMetaFileOperation(part, folders, true /*retrieve metafile content*/); |
| op.run(); |
| return op.getUpdatedFolders(); |
| } |
| |
| public ProjectMetaFileOperation(IWorkbenchPart part, ICVSRemoteFolder[] remoteFolders, boolean retrieveContent) { |
| super(part); |
| this.remoteFolders = remoteFolders; |
| this.retrieveContent = retrieveContent; |
| } |
| |
| /* |
| * Update the folders with a project name if the provided remote folder contains a non empty project name |
| * in its meta-file (i.e. .project file) |
| * Set the metafile existence to true as needed |
| */ |
| private void checkForMetafileAndUpdateFoldersWithRemoteProjectName(ICVSRemoteFolder[] folders, IProgressMonitor monitor) throws CVSException { |
| metaFileExists = false; |
| monitor.beginTask(null, folders.length*100); |
| for (int i = 0; i < folders.length; i++) { |
| // make a copy of the folder so that we will not effect the original |
| // folder when we refetch the members |
| // TODO: this is a strange thing to need to do. We should fix this. |
| ICVSRemoteFolder folder = (ICVSRemoteFolder) folders[i].forTag(folders[i].getTag()); |
| |
| try { |
| folder.members(Policy.subMonitorFor(monitor, 50)); |
| } catch (TeamException e) { |
| throw CVSException.wrapException(e); |
| } |
| // Check for the existance of the .project file |
| // and attempt to create an IProjectDescription of it |
| // and extract the project name |
| InputStream in = null; |
| try { |
| ICVSRemoteFile remote = (ICVSRemoteFile) folder.getFile(".project"); //$NON-NLS-1$ |
| //if we have gone so far, then a metafile exists. |
| metaFileExists = true; |
| // retrieve the file content optionally, if requested |
| if (retrieveContent && folder instanceof RemoteFolder) { |
| RemoteFolder rf = (RemoteFolder) folder; |
| |
| //load the project description from the retrieved metafile |
| in = remote.getContents(Policy.subMonitorFor(monitor, 50)); |
| if (in == null || monitor.isCanceled()) { |
| break; |
| } |
| IWorkspace workspace = ResourcesPlugin.getWorkspace(); |
| IProjectDescription projectDesc = workspace.loadProjectDescription(in); |
| |
| //clone the remote folder into a remote project folder |
| //set the project name |
| RemoteProjectFolder rpf = new RemoteProjectFolder(rf, projectDesc.getName()); |
| // ... and update back our folder |
| folders[i] = rpf; |
| } |
| } catch (TeamException e) { |
| // We couldn't retrieve the project meta file so assume it doesn't |
| // exist |
| } catch (CoreException e) { |
| // We couldn't read the project description, so assume the |
| // metafile is not a metafile, or is incorrect |
| // which is as if it does not exist |
| } finally { |
| try { |
| if (in != null) { |
| in.close(); |
| } |
| } catch (IOException e) { |
| // ignore : we cannot read the file, so it's like it is not there |
| } |
| } |
| } |
| monitor.done(); |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.internal.ccvs.ui.operations.CVSOperation#execute(org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public void execute(IProgressMonitor monitor) throws CVSException, InterruptedException { |
| checkForMetafileAndUpdateFoldersWithRemoteProjectName(remoteFolders, monitor); |
| } |
| |
| /** |
| * Return true if the meta file exists remotely. This method should only be invoked |
| * after the operation has been executed; |
| * @return |
| */ |
| public boolean metaFileExists() { |
| return metaFileExists; |
| } |
| |
| /** |
| * @return the updated folders with project name from the remote project meta |
| * information if the .project file was properly retrieved or the |
| * unmodified folders if retrieval failed. This method should only be |
| * invoked after the operation has been executed; |
| */ |
| public ICVSRemoteFolder[] getUpdatedFolders() { |
| return remoteFolders; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.internal.ccvs.ui.operations.CVSOperation#getTaskName() |
| */ |
| protected String getTaskName() { |
| return CVSUIMessages.ProjectMetaFile_taskName; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.internal.ccvs.ui.operations.CVSOperation#canRunAsJob() |
| */ |
| public boolean canRunAsJob() { |
| // This operation should never be run in the background. |
| return false; |
| } |
| } |