org.eclipse.emf.emfstore.client.ui/src/org/eclipse/emf/emfstore/client/ui/controller/UIDeleteProjectController.java

/*******************************************************************************
 * Copyright 2011 Chair for Applied Software Engineering,
 * Technische Universitaet Muenchen.
 * All rights reserved. This program and the accompanying materials
 * are made available under the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 ******************************************************************************/
package org.eclipse.emf.emfstore.client.ui.controller;

import java.io.IOException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.emfstore.client.model.ProjectSpace;
import org.eclipse.emf.emfstore.client.model.Workspace;
import org.eclipse.emf.emfstore.client.model.WorkspaceManager;
import org.eclipse.emf.emfstore.client.ui.handlers.AbstractEMFStoreUIController;
import org.eclipse.emf.emfstore.server.exceptions.EmfStoreException;
import org.eclipse.swt.widgets.Shell;

/**
 * UI controller for deleting a local project.
 * 
 * @author emueller
 */
public class UIDeleteProjectController extends AbstractEMFStoreUIController<Void> {

	private final ProjectSpace projectSpace;

	/**
	 * Constructor.
	 * 
	 * @param shell
	 *            the shell that will be used during the deletion of the project
	 * @param projectSpace
	 *            the {@link ProjectSpace} containing the project that should be deleted
	 */
	public UIDeleteProjectController(Shell shell, ProjectSpace projectSpace) {
		super(shell);
		this.projectSpace = projectSpace;
	}

	private void deleteProject(final ProjectSpace projectSpace) {
		final Workspace currentWorkspace = WorkspaceManager.getInstance().getCurrentWorkspace();
		try {
			currentWorkspace.deleteProjectSpace(projectSpace);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			// Do NOT catch all Exceptions ("catch (Exception e)")
			// Log AND handle Exceptions if possible
			//
			// You can just uncomment one of the lines below to log an exception:
			// logException will show the logged excpetion to the user
			// ModelUtil.logException(e);
			// ModelUtil.logException("YOUR MESSAGE HERE", e);
			// logWarning will only add the message to the error log
			// ModelUtil.logWarning("YOUR MESSAGE HERE", e);
			// ModelUtil.logWarning("YOUR MESSAGE HERE");
			//
			// If handling is not possible declare and rethrow Exception
			e.printStackTrace();
		}
	}

	private boolean confirmation(final ProjectSpace projectSpace) {
		String message = "Do you really want to delete your local copy of project \"" + projectSpace.getProjectName()
			+ "\n";

		if (projectSpace.getBaseVersion() != null) {
			message += " in version " + projectSpace.getBaseVersion().getIdentifier();
		}

		message += " ?";

		return confirm("Confirmation", message);
	}

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

		if (!confirmation(projectSpace)) {
			return null;
		}

		deleteProject(projectSpace);
		return null;
	}

}