org.eclipse.emf.emfstore.internal.client.ui.controller.UIRevertCommitController.java Source code

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Here is the source code for org.eclipse.emf.emfstore.internal.client.ui.controller.UIRevertCommitController.java

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/*******************************************************************************
 * Copyright (c) 2012-2013 EclipseSource Muenchen GmbH 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:
 * Otto von Wesendonk, Edgar Mueller - initial API and implementation
 ******************************************************************************/
package org.eclipse.emf.emfstore.internal.client.ui.controller;

import java.text.DateFormat;
import java.text.MessageFormat;
import java.util.Date;

import org.apache.commons.lang.StringUtils;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.emfstore.client.ESLocalProject;
import org.eclipse.emf.emfstore.internal.client.model.controller.RevertCommitController;
import org.eclipse.emf.emfstore.internal.client.model.impl.api.ESLocalProjectImpl;
import org.eclipse.emf.emfstore.internal.common.model.util.ModelUtil;
import org.eclipse.emf.emfstore.internal.server.model.impl.api.versionspec.ESPrimaryVersionSpecImpl;
import org.eclipse.emf.emfstore.internal.server.model.versioning.PrimaryVersionSpec;
import org.eclipse.emf.emfstore.server.exceptions.ESException;
import org.eclipse.emf.emfstore.server.model.versionspec.ESPrimaryVersionSpec;
import org.eclipse.jface.dialogs.IInputValidator;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Shell;

/**
 * UI controller for reverting a commit.
 * 
 * @author emueller
 * @author wesendon
 * 
 */
public class UIRevertCommitController extends AbstractEMFStoreUIController<Void> {

    private final ESPrimaryVersionSpecImpl versionSpec;
    private final ESLocalProjectImpl localProject;

    /**
     * Constructor.
     * 
     * @param shell
     *            the shell that is used during the revert
     * @param versionSpec
     *            {@link org.eclipse.emf.emfstore.internal.server.model.versioning.VersionSpec VersionSpec} of the
     *            commit to be reverted
     * @param localProject
     *            project that contains the version to be reverted
     */
    public UIRevertCommitController(Shell shell, ESPrimaryVersionSpec versionSpec, ESLocalProject localProject) {
        super(shell, false, false);
        this.localProject = (ESLocalProjectImpl) localProject;
        this.versionSpec = (ESPrimaryVersionSpecImpl) versionSpec;
    }

    /**
     * 
     * {@inheritDoc}
     * 
     * @see org.eclipse.emf.emfstore.internal.client.ui.common.MonitoredEMFStoreAction#doRun(org.eclipse.core.runtime.IProgressMonitor)
     */
    @Override
    public Void doRun(IProgressMonitor monitor) throws ESException {

        final InputDialog dialog = new InputDialog(null, Messages.UIRevertCommitController_Confirmation,
                MessageFormat.format(
                        Messages.UIRevertCommitController_RevertCommitPrompt_1
                                + Messages.UIRevertCommitController_RevertCommitPrompt_2,
                        localProject.getProjectName()),
                createDefaultProjectName(localProject), new IInputValidator() {
                    public String isValid(String newText) {
                        if (StringUtils.isNotBlank(newText)) {
                            return null;
                        }
                        return Messages.UIRevertCommitController_InvalidProjectName;
                    }
                });

        if (dialog.open() == Window.OK) {

            final PrimaryVersionSpec primaryVersionSpec = ModelUtil.clone(versionSpec.toInternalAPI());
            final String checkoutName = dialog.getValue();

            try {
                new RevertCommitController(localProject.toInternalAPI(), primaryVersionSpec, true, checkoutName)
                        .execute();
            } catch (final ESException e) {
                MessageDialog.openWarning(getShell(), Messages.UIRevertCommitController_RevertFailed_Title,
                        MessageFormat.format(Messages.UIRevertCommitController_RevertFailed_Message,
                                e.getMessage()));
            }
        }
        return null;
    }

    private String createDefaultProjectName(ESLocalProject project) {
        final DateFormat format = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
        return project.getProjectName() + "@" + format.format(new Date()); //$NON-NLS-1$
    }

}