org.eclipse.team.svn.ui.crashrecovery.DiscardedLocationHelper.java Source code

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Here is the source code for org.eclipse.team.svn.ui.crashrecovery.DiscardedLocationHelper.java

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/*******************************************************************************
 * Copyright (c) 2005-2008 Polarion Software.
 * 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:
 *    Alexander Gurov (Polarion Software) - initial API and implementation
 *******************************************************************************/

package org.eclipse.team.svn.ui.crashrecovery;

import org.eclipse.core.resources.IProject;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.team.svn.core.extension.crashrecovery.ErrorDescription;
import org.eclipse.team.svn.core.extension.crashrecovery.IResolutionHelper;
import org.eclipse.team.svn.core.operation.CompositeOperation;
import org.eclipse.team.svn.core.operation.remote.management.AddRepositoryLocationOperation;
import org.eclipse.team.svn.core.operation.remote.management.SaveRepositoryLocationsOperation;
import org.eclipse.team.svn.core.resource.IRepositoryLocation;
import org.eclipse.team.svn.core.svnstorage.SVNRemoteStorage;
import org.eclipse.team.svn.ui.SVNUIMessages;
import org.eclipse.team.svn.ui.operation.RefreshRepositoryLocationsOperation;
import org.eclipse.team.svn.ui.utility.UIMonitorUtility;

/**
 * Provides ability to handle situation when repository location which is attached to the project is discarded.
 * 
 * @author Alexander Gurov
 */
public class DiscardedLocationHelper implements IResolutionHelper {

    public boolean acquireResolution(ErrorDescription description) {
        if (description.code == ErrorDescription.REPOSITORY_LOCATION_IS_DISCARDED) {
            Object[] context = (Object[]) description.context;

            final IRepositoryLocation location = (IRepositoryLocation) context[1];

            // check if location is unavailable due to project is checked out with very old plug-in version
            if (location == null) {
                return false;
            }

            // check if already handled for any other project
            if (SVNRemoteStorage.instance().getRepositoryLocation(location.getId()) != null) {
                return true;
            }

            final IProject project = (IProject) context[0];

            final boolean[] solved = new boolean[] { false };
            UIMonitorUtility.parallelSyncExec(new Runnable() {
                public void run() {
                    MessageDialog dlg = new MessageDialog(UIMonitorUtility.getShell(),
                            SVNUIMessages.DiscardedLocationHelper_Dialog_Title, null,
                            SVNUIMessages.format(SVNUIMessages.DiscardedLocationHelper_Dialog_Message,
                                    new String[] { project.getName(), location.getLabel() }),
                            MessageDialog.WARNING,
                            new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL }, 0);
                    solved[0] = dlg.open() == 0;
                }
            });

            if (solved[0]) {
                AddRepositoryLocationOperation mainOp = new AddRepositoryLocationOperation(location);
                CompositeOperation op = new CompositeOperation(mainOp.getId(), mainOp.getMessagesClass());
                op.add(mainOp);
                op.add(new SaveRepositoryLocationsOperation());
                op.add(new RefreshRepositoryLocationsOperation(new IRepositoryLocation[] { location }, true));
                UIMonitorUtility.doTaskBusyDefault(op);
            }

            return solved[0];
        }
        return false;
    }

}