/*
    GNU GENERAL PUBLIC LICENSE
    Copyright (C) 2006 The Lobo Project

    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
    verion 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 library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Contact info: lobochief@users.sourceforge.net
 */
/*
 * Created on Mar 14, 2005
 */
package org.lobobrowser.protocol.vc;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

import org.lobobrowser.context.VolatileContentImpl;

/**
 * @author J. H. S.
 */
public class VcURLConnection extends URLConnection {
  private final VolatileContentImpl vc;

  public VcURLConnection(final URL url) {
    super(url);
    final String file = url.getPath();
    try {
      final long id = Long.parseLong(file.trim());
      this.vc = VolatileContentImpl.getVolatileContent(id);
      if (this.vc == null) {
        throw new IllegalArgumentException("Content either invalid or no longer available");
      }
    } catch (final NumberFormatException nfe) {
      throw new IllegalArgumentException("Bad path: " + file);
    }
  }

  /*
   * (non-Javadoc)
   *
   * @see java.net.URLConnection#connect()
   */
  @Override
  public void connect() throws IOException {
  }

  /*
   * (non-Javadoc)
   *
   * @see java.net.URLConnection#getContentLength()
   */
  @Override
  public int getContentLength() {
    return this.vc.getBytes().length;
  }

  /*
   * (non-Javadoc)
   *
   * @see java.net.URLConnection#getContentType()
   */
  @Override
  public String getContentType() {
    return this.vc.getContentType();
  }

  /*
   * (non-Javadoc)
   *
   * @see java.net.URLConnection#getInputStream()
   */
  @Override
  public InputStream getInputStream() throws IOException {
    return new ByteArrayInputStream(this.vc.getBytes());
  }
}