//
// AddeURLStreamHandler.java
//

/*
This source file is part of the edu.wisc.ssec.mcidas package and is
Copyright (C) 1998 - 2017 by Tom Whittaker, Tommy Jasmin, Tom Rink,
Don Murray, James Kelly, Bill Hibbard, Dave Glowacki, Curtis Rueden
and others.
 
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA
*/

package edu.wisc.ssec.mcidas.adde;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;

/**
 * This class defines the openConnection method, which is
 * used to create an AddeURLConnection.  Note that this 
 * class is automatically loaded when a URL of this type
 * is created, you don't have explicitly create an object.
 *
 * @author Tommy Jasmin, University of Wisconsin, SSEC
 */

public class AddeURLStreamHandler extends URLStreamHandler

{

  /**
   *
   * returns a reference to a special URLConnection object
   * designed to implement the ADDE protocol.
   *
   * @param             url - user specified URL, encodes ADDE request
   * @return            AddeURLConnection reference.
   */

  protected URLConnection openConnection(URL url)
    throws IOException

  {
    return new AddeURLConnection(url);
  }

  /** 
   * Returns the default port for a URL parsed by this handler. 
   * This method is meant to be overidden by handlers with default 
   * port numbers.
   */ 
  protected int getDefaultPort() {
      return AddeURLConnection.DEFAULT_PORT;
  }

}