Application: gvSIG desktop » Library: org.gvsig.tools

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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, write to the Free Software

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

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.tools.util;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.net.MalformedURLException;

import java.net.URL;

/**

 *

 * @author gvSIG Team

 */

public class URLUtils {

  public static InputStream openStream(URL url) {

    if( url == null ) {

      return null;

    }

    try {

      return url.openStream();

    } catch (IOException ex) {

      // Do nthhing

    }

    // En windows hay un problema con los URL de tipo fichero, y si estos se han

    // construido con file.toURI().toURL() al llamar a openStream falla, 

    // asi que si falla lo volveremos a intentar abriendo el File a mano.

    String protocol = url.getProtocol();

    String path = url.getPath();

    if( protocol==null || path==null || path.isEmpty() || !protocol.equalsIgnoreCase("file") ) {

      return null;

    }

    File f = new File(path);

    FileInputStream is;

    try {

      is = new FileInputStream(f);

    } catch (FileNotFoundException ex) {

      return null;

    }

    return is;    

  }

  public static void main(String[] args) throws MalformedURLException {

    File f = new File("/tmp/test.txt");

    URLUtils.openStream(f.toURI().toURL());

  }

}