Application: gvSIG desktop

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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 2

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.compat.net;

import java.io.File;

import java.io.IOException;

import java.net.ConnectException;

import java.net.URL;

import java.net.UnknownHostException;

/**

 * @author gvSIG Team

 * @version $Id$

 *

 */

public interface Downloader {

    /**

     * Downloads an URL into a temporary file that is removed the next time the

     * tempFileManager class is called, which means the next time gvSIG is launched.

     *

     * @param url

     * @param name

     * @return

     * @throws IOException

     * @throws ServerErrorResponseException

     * @throws ConnectException

     * @throws UnknownHostException

     */

    public File downloadFile(URL url, String name, ICancellable cancel) throws IOException,ConnectException, UnknownHostException;

    /**

     * Downloads a URL using the HTTP Post protocol

     * @param url

     * The server URL

     * @param data

     * The data to send in the request

     * @param name

     * A common name for all the retrieved files

     * @param cancel

     * Used to cancel the downloads

     * @return

     * The retrieved file

     * @throws IOException

     * @throws ConnectException

     * @throws UnknownHostException

     */

    public File downloadFile(URL url, String data, String name, ICancellable cancel) throws IOException,ConnectException, UnknownHostException;

    public void removeURL(URL url);

    public void removeURL(Object url);

    /**

     * Cleans every temporal file previously downloaded.

     */

    public void cleanUpTempFiles();

}