////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2007-2022 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave 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.
//
// Octave 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 Octave; see the file COPYING.  If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////

package org.octave;

import java.io.File;

public class OctClassLoader extends java.net.URLClassLoader
{
  public OctClassLoader ()
  {
    super (new java.net.URL[0]);
  }

  public OctClassLoader (ClassLoader parent)
  {
    super (new java.net.URL[0], parent);
  }

  protected Class findClass (String name) throws ClassNotFoundException
  {
    //System.out.println ("Looking for class " + name);
    return super.findClass (name);
  }

  protected String findLibrary (String libname)
  {
    // Look dynamically into java.library.path, because Sun VM does
    // not do it (seems to cache initial java.library.path instead)

    String[] paths = System.getProperty ("java.library.path").split (File.pathSeparator);

    libname = System.mapLibraryName (libname);
    for (int i = 0; i < paths.length; i++)
      {
        File f = new File (paths[i], libname);
        if (f.exists ())
          return f.getAbsolutePath ();
      }

    return null;
  }

  public void addClassPath (String name) throws Exception
  {
    java.io.File f = new java.io.File (name);
    addURL (f.toURI ().toURL ());
  }

  // new -MH-
  public void addURL (java.net.URL url)
  {
    super.addURL (url);
  }
}
