/*
 * 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.motorola.studio.android.common;

import static com.motorola.studio.android.common.log.StudioLogger.debug;
import static com.motorola.studio.android.common.log.StudioLogger.error;

import java.io.File;
import java.io.IOException;
import java.net.URL;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

import com.motorola.studio.android.common.log.StudioLogger;

/**
 * The activator class controls the plug-in life cycle
 */
public class CommonPlugin extends AbstractUIPlugin
{

    // The plug-in ID
    public static final String PLUGIN_ID = "com.motorola.studio.android.common"; //$NON-NLS-1$

    private static final String JDBC_DRIVER_PATH = "res/androidjdbc.jar";

    public static final String JDBC_DRIVER_INSTANCE_NAME = "motodev_jdbc_driver";

    // The shared instance
    private static CommonPlugin plugin;

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
     */
    @Override
    public void start(BundleContext context) throws Exception
    {
        StudioLogger.debug(CommonPlugin.class, "Starting MOTODEV Android Common Plugin...");

        super.start(context);
        plugin = this;

        StudioLogger.debug(CommonPlugin.class, "MOTODEV Android Common Plugin started.");
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
     */
    @Override
    public void stop(BundleContext context) throws Exception
    {
        plugin = null;
        super.stop(context);
    }

    /**
     * Returns the shared instance
     *
     * @return the shared instance
     */
    public static CommonPlugin getDefault()
    {
        return plugin;
    }

    /**
     * Retrieves the location of the driver
     * @return
     */
    public String getDriverPath()
    {
        String driverPath = "";
        if (getDbResourceFile(JDBC_DRIVER_PATH) != null)
        {
            driverPath = getDbResourceFile(JDBC_DRIVER_PATH).getAbsolutePath();
        }
        return driverPath;
    }

    private File getDbResourceFile(String pathAtPlugin)
    {
        URL location = getBundle().getEntry(pathAtPlugin);

        debug("JDBC Driver Location:" + location + " JDBC Driver getBundle().getLocation():"
                + getBundle().getLocation());

        File file = null;
        try
        {
            IPath p = new Path(FileLocator.toFileURL(location).getFile());
            debug("JDBC Driver Path:" + p.toOSString());
            file = p.toFile();
        }
        catch (IOException e)
        {
            error("Error while trying to locate jdbc driver into db plugin:" + e.getMessage());
        }
        return file;

    }

}