com.astra.ses.spell.gui.model.commands.ShowReleaseInfo.java Source code

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///////////////////////////////////////////////////////////////////////////////
//
// PACKAGE   : com.astra.ses.spell.gui.model.commands
// 
// FILE      : ShowReleaseInfo.java
//
// DATE      : 2008-11-21 08:55
//
// Copyright (C) 2008, 2012 SES ENGINEERING, Luxembourg S.A.R.L.
//
// By using this software in any way, you are agreeing to be bound by
// the terms of this license.
//
// 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
//
// NO WARRANTY
// EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS PROVIDED
// ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER
// EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR
// CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A
// PARTICULAR PURPOSE. Each Recipient is solely responsible for determining
// the appropriateness of using and distributing the Program and assumes all
// risks associated with its exercise of rights under this Agreement ,
// including but not limited to the risks and costs of program errors,
// compliance with applicable laws, damage to or loss of data, programs or
// equipment, and unavailability or interruption of operations.
//
// DISCLAIMER OF LIABILITY
// EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT NOR ANY
// CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION
// LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE
// EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGES.
//
// Contributors:
//    SES ENGINEERING - initial API and implementation and/or initial documentation
//
// PROJECT   : SPELL
//
// SUBPROJECT: SPELL GUI Client
//
///////////////////////////////////////////////////////////////////////////////
package com.astra.ses.spell.gui.model.commands;

import java.io.File;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;

import com.astra.ses.spell.gui.dialogs.ReleaseInfoDialog;

/*******************************************************************************
 * @brief Command for showing the release information
 * @date 09/10/07
 ******************************************************************************/
public class ShowReleaseInfo extends AbstractHandler {
    public static final String ID = "com.astra.ses.spell.gui.commands.ShowReleaseInfo";

    // =========================================================================
    // # INSTANCE DATA MEMBERS
    // =========================================================================

    // PRIVATE -----------------------------------------------------------------

    // PROTECTED ---------------------------------------------------------------
    // PUBLIC ------------------------------------------------------------------

    // =========================================================================
    // # ACCESIBLE METHODS
    // =========================================================================

    public CommandResult execute(ExecutionEvent event) throws ExecutionException {
        // Search the release information file
        String spellData = System.getenv("SPELL_DATA");
        if (spellData == null) {
            spellData = System.getenv("SPELL_HOME") + System.getProperty("file.separator") + "data";
        }
        IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
        String path = "";
        // Try to find file in different cases
        File dir = new File(spellData);
        File releaseFile = null;
        String[] children = dir.list();
        if (children != null) {
            for (int i = 0; i < children.length; i++) {
                // Get filename of file or directory
                String filename = children[i];
                if (filename.toLowerCase().equals("release.txt")) {
                    path = spellData + System.getProperty("file.separator") + filename;
                    releaseFile = new File(path);
                    break;
                }
            }
        }
        if ((releaseFile != null) && (releaseFile.exists() && releaseFile.canRead())) {
            ReleaseInfoDialog dialog = new ReleaseInfoDialog(window.getShell(), path);
            dialog.open();
            return CommandResult.SUCCESS;
        } else {
            MessageDialog.openWarning(window.getShell(), "Release Information",
                    "No release information available\n'" + path + "'");
            return CommandResult.NO_EFFECT;
        }
    }

}