MapDatabaseHandler.java

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.motorolamobility.studio.android.db.core.command;

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.core.commands.IHandler;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;

import com.motorola.studio.android.common.utilities.EclipseUtils;
import com.motorolamobility.studio.android.db.core.i18n.DbCoreNLS;
import com.motorolamobility.studio.android.db.core.model.DbModel;
import com.motorolamobility.studio.android.db.core.ui.IDbMapperNode;

public class MapDatabaseHandler extends AbstractHandler implements IHandler
{

    private IDbMapperNode dbMapperNode;

    public MapDatabaseHandler()
    {
    }

    public MapDatabaseHandler(IDbMapperNode node)
    {
        this.dbMapperNode = node;
    }

    public Object execute(ExecutionEvent event) throws ExecutionException
    {
        if (dbMapperNode != null)
        {
            IPath dbFilePath = null;

            Shell shell = Display.getCurrent().getActiveShell();

            FileDialog dialog = new FileDialog(shell);
            String[] filterExt =
            {
                    "*.db", "*.*" //$NON-NLS-1$ //$NON-NLS-2$
            };
            dialog.setFilterExtensions(filterExt);

            String dbFilePathString = dialog.open();

            if (dbFilePathString != null)
            {
                File dbFile = new File(dbFilePathString);
                dbFilePath = new Path(dbFile.getAbsolutePath());

                if (dbFile.exists() && DbModel.isValidSQLiteDatabase(dbFile))
                {
                    dbMapperNode.map(dbFilePath);
                }
                else
                {
                    //Notify db does not exist or it is invalid
                    EclipseUtils.showErrorDialog(DbCoreNLS.MapDatabaseHandler_Title_Error,
                            DbCoreNLS.bind(DbCoreNLS.Invalid_Db_Error, dbFilePath));
                }
            }
        }
        return null;
    }

}