| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.update.internal.operations; |
| |
| import org.eclipse.core.runtime.*; |
| import org.eclipse.update.core.*; |
| import org.eclipse.update.operations.*; |
| |
| /** |
| * Swaps a feature. |
| * ReplaceFeatureVersionOperation |
| */ |
| public class ReplaceFeatureVersionOperation |
| extends FeatureOperation |
| implements IConfigFeatureOperation { |
| |
| private IFeature anotherFeature; |
| |
| public ReplaceFeatureVersionOperation( |
| IFeature feature, |
| IFeature anotherFeature) { |
| super(feature.getSite().getCurrentConfiguredSite(), feature); |
| this.anotherFeature = anotherFeature; |
| } |
| |
| public boolean execute(IProgressMonitor pm, IOperationListener listener) |
| throws CoreException { |
| |
| IStatus status = |
| OperationsManager.getValidator().validatePendingReplaceVersion(feature, anotherFeature); |
| if (status != null) { |
| throw new CoreException(status); |
| } |
| |
| // unconfigure current feature first, then configure the other one |
| |
| PatchCleaner cleaner = new PatchCleaner(targetSite, feature); |
| targetSite.unconfigure(feature); |
| cleaner.dispose(); |
| |
| targetSite.configure(anotherFeature); |
| // ensureUnique(); |
| |
| try { |
| // Restart not needed |
| boolean restartNeeded = false; |
| |
| // Check if this operation is cancelling one that's already pending |
| IOperation pendingOperation = |
| OperationsManager.findPendingOperation(feature); |
| |
| if (pendingOperation instanceof IConfigFeatureOperation) { |
| // no need to do either pending change |
| OperationsManager.removePendingOperation(pendingOperation); |
| } else { |
| OperationsManager.addPendingOperation(this); |
| restartNeeded = true; |
| } |
| |
| pendingOperation = |
| OperationsManager.findPendingOperation(anotherFeature); |
| |
| if (pendingOperation instanceof IUnconfigFeatureOperation) { |
| // no need to do either pending change |
| OperationsManager.removePendingOperation(pendingOperation); |
| } else { |
| OperationsManager.addPendingOperation(this); |
| restartNeeded = true; |
| } |
| |
| markProcessed(); |
| if (listener != null) |
| listener.afterExecute(this, null); |
| |
| restartNeeded = SiteManager.getLocalSite().save() && restartNeeded; |
| |
| // notify the model |
| OperationsManager.fireObjectChanged(feature, null); |
| |
| return restartNeeded; |
| } catch (CoreException e) { |
| undo(); |
| UpdateUtils.logException(e); |
| throw e; |
| } |
| } |
| |
| public void undo() throws CoreException { |
| targetSite.unconfigure(anotherFeature); |
| targetSite.configure(feature); |
| } |
| } |