Subversion Repositories openrisc

/* Copyright (C) 2007  Free Software Foundation

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the

Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for

details.  */

package gnu.java.net.loader;

import gnu.gcj.runtime.SharedLibHelper;

import java.io.InputStream;

import java.io.IOException;

import java.net.URL;

import java.net.URLClassLoader;

import java.net.URLConnection;

import java.net.URLStreamHandlerFactory;

/**

 * A <code>Load_gcjlib</code> is a type of <code>URLLoader</code>

 * that loads classes and resources from a shared library.

 */

public final class Load_gcjlib extends URLLoader

{

  private SharedLibHelper helper;

  public Load_gcjlib(URLClassLoader classloader,

                     URLStreamHandlerCache cache,

                     URLStreamHandlerFactory factory,

                     URL url, URL absoluteUrl)

  {

    super(classloader, cache, factory, url, absoluteUrl);

    helper = SharedLibHelper.findHelper(classloader, url.getFile(),

                                        noCertCodeSource, true);

  }

  public Class getClass(String className)

  {

    return helper.findClass(className);

  }

  public Resource getResource(String name)

  {

    URL url = helper.findResource(name);

    if (url == null)

      return null;

    return new SoResource(this, url);

  }

  final static class SoResource extends Resource

  {

    private final URL url;

    SoResource(Load_gcjlib loader, URL url)

    {

      super(loader);

      this.url = url;

    }

    public InputStream getInputStream() throws IOException

    {

      URLConnection conn = url.openConnection();

      return conn.getInputStream();

    }

    public int getLength()

    {

      // FIXME we could find this by asking the core object.

      return -1;

    }

    public URL getURL ()

    {

      return url;

    }

  }

}