net.sf.freeqda.common.handler.LoadProjectHandler.java Source code

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Here is the source code for net.sf.freeqda.common.handler.LoadProjectHandler.java

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/*******************************************************************************
 * FreeQDA,  a software for professional qualitative research data 
 * analysis, such as interviews, manuscripts, journal articles, memos
 * and field notes.
 *
 * Copyright (C) 2011 Dirk Kitscha, Jrg groe Schlarmann
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package net.sf.freeqda.common.handler;

import java.io.File;
import java.io.IOException;
import java.text.MessageFormat;

import net.sf.freeqda.common.projectmanager.ProjectManager;

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.swt.SWT;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.HandlerUtil;

public class LoadProjectHandler extends AbstractHandler {

    //   private static final ProjectManager PROJECT_MANAGER = ProjectManager.getInstance();

    private static final String DIALOG_TEXT = Messages.LoadProjectHandler_DialogText;
    private static final String SUFFIX_FQDA_PROJECTS = "*.fqd"; //$NON-NLS-1$
    private static final String SUFFIX_ALL_FILES = "*.*"; //$NON-NLS-1$

    private static final String DIALOG_LOAD_CANCELED_TITLE = Messages.LoadProjectHandler_DialogLoadCanceled_Title;
    private static final String DIALOG_LOAD_CANCELED_MESSAGE = Messages.LoadProjectHandler_DialogLoadCanceled_Message;
    private static final String DIALOG_LOAD_CANCELED_BUTTONS = Messages.LoadProjectHandler_DialogLoadCanceled_ButtonConfirm;

    private static final String DIALOG_PROJECT_LOADED_TITLE = Messages.LoadProjectHandler_DialogProjectLoaded_Title;
    private static final String DIALOG_PROJECT_LOADED_BUTTONS = Messages.LoadProjectHandler_DialogProjectLoaded_ButtonConfirm;

    private static final String DIALOG_LOADING_FAILED_TITLE = Messages.LoadProjectHandler_DialogProjectLoadingFailed_Title;
    private static final String DIALOG_LOADING_FAILED_BUTTONS = Messages.LoadProjectHandler_DialogProjectLoadingFailed_ButtonConfirm;

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {

        Shell shell = HandlerUtil.getActiveWorkbenchWindow(event).getShell();

        //TODO check for active project and close if exists

        // File standard dialog
        FileDialog fileDialog = new FileDialog(shell, SWT.OPEN);

        // Initialise the dialog
        fileDialog.setText(DIALOG_TEXT);
        fileDialog.setFilterNames(new String[] {
                MessageFormat.format(Messages.LoadProjectHandler_Filter_FQDAProjects,
                        new Object[] { SUFFIX_FQDA_PROJECTS }),
                MessageFormat.format(Messages.LoadProjectHandler_Filter_AllFiles,
                        new Object[] { SUFFIX_ALL_FILES }) });
        fileDialog.setFilterExtensions(new String[] { SUFFIX_FQDA_PROJECTS, SUFFIX_ALL_FILES }); //TODO create platform dependent wildcards!

        // Open Dialog and save result of selection
        String selected = fileDialog.open();

        /*
          * Check if dialog has been canceled
          */
        if (selected == null) {
            new MessageDialog(shell, DIALOG_LOAD_CANCELED_TITLE, null, DIALOG_LOAD_CANCELED_MESSAGE,
                    MessageDialog.WARNING, new String[] { DIALOG_LOAD_CANCELED_BUTTONS }, 0).open();
            return null;
        }

        /*
         * Load selected project file
         */
        try {
            ProjectManager.getInstance().load(new File(selected));
            new MessageDialog(shell, DIALOG_PROJECT_LOADED_TITLE, null,
                    MessageFormat.format(Messages.LoadProjectHandler_DialogProjectLoaded_Message,
                            new Object[] { selected }),
                    MessageDialog.INFORMATION, new String[] { DIALOG_PROJECT_LOADED_BUTTONS }, 0).open();
        } catch (IOException e) {
            new MessageDialog(shell, DIALOG_LOADING_FAILED_TITLE, null,
                    MessageFormat.format(Messages.LoadProjectHandler_DialogProjectLoadingFailed_Message,
                            new Object[] { selected }),
                    MessageDialog.ERROR, new String[] { DIALOG_LOADING_FAILED_BUTTONS }, 0).open();
            e.printStackTrace();
        }
        return null;
    }

}