/*

 * This file is part of libbluray

 * Copyright (C) 2010  William Hahne

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library 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

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library. If not, see

 * <http://www.gnu.org/licenses/>.

 */

package javax.tv.locator;

import org.bluray.net.BDLocator;

import org.videolan.Logger;

public class LocatorFactoryImpl extends LocatorFactory {

    public Locator createLocator(String url) throws MalformedLocatorException {

        if (url == null) {

            logger.error("null locator");

            throw new NullPointerException("Source Locator is null");

        }

        // check if it is a bluray locator

        if (url.startsWith("bd:/")) {

            try {

                return new BDLocator(url);

            } catch (org.davic.net.InvalidLocatorException ex) {

                logger.error("invalid locator: " + url);

                throw new MalformedLocatorException(ex.getMessage());

            }

        } else {

            // just return a generic locator

            logger.error("unknown locator type: " + url);

            return new LocatorImpl(url);

        }

    }

    public Locator[] transformLocator(Locator source) throws InvalidLocatorException {

        if (source == null) {

            logger.error("null locator");

            throw new NullPointerException("Source Locator is null");

        }

        if (source instanceof BDLocator) {

            return new Locator[] { source };

        }

        logger.error("unsupported locator: " + source);

        throw new InvalidLocatorException(source, "Source locator is invalid.");

    }

    private static final Logger logger = Logger.getLogger(LocatorFactoryImpl.class.getName());

}