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/*
 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.sun.glass.utils;

import java.io.File;
import java.net.URI;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.HashSet;

public class NativeLibLoader {

    private static final HashSet loaded = new HashSet();

    public static synchronized void loadLibrary(String libname) {
        if (!loaded.contains(libname)) {
            loadLibraryInternal(libname);
            loaded.add(libname);
        }
    }

    private static boolean verbose = false;

    private static File libDir = null;
    private static String libPrefix = "";
    private static String libSuffix = "";

    static {
        AccessController.doPrivileged(new PrivilegedAction() {
            public Object run() {
                verbose = Boolean.getBoolean("javafx.verbose");
                return null;
            }
        });
    }
    
    private static String[] initializePath(String propname) {
        String ldpath = System.getProperty(propname, "");
        String ps = File.pathSeparator;
        int ldlen = ldpath.length();
        int i, j, n;
        // Count the separators in the path
        i = ldpath.indexOf(ps);
        n = 0;
        while (i >= 0) {
            n++;
            i = ldpath.indexOf(ps, i + 1);
        }

        // allocate the array of paths - n :'s = n + 1 path elements
        String[] paths = new String[n + 1];

        // Fill the array with paths from the ldpath
        n = i = 0;
        j = ldpath.indexOf(ps);
        while (j >= 0) {
            if (j - i > 0) {
                paths[n++] = ldpath.substring(i, j);
            } else if (j - i == 0) {
                paths[n++] = ".";
            }
            i = j + 1;
            j = ldpath.indexOf(ps, i);
        }
        paths[n] = ldpath.substring(i, ldlen);
        return paths;
    }

    private static void loadLibraryInternal(String libraryName) {
        // Look for the library in the same directory as the jar file
        // containing this class.
        // If that fails, then try System.loadLibrary as a last resort.
        try {
            loadLibraryFullPath(libraryName);
        } catch (UnsatisfiedLinkError ex) {
            // NOTE: First attempt to load the libraries from the java.library.path.
            // This allows FX to find more recent versions of the shared libraries
            // from java.library.path instead of ones that might be part of the JRE
            //
            String [] libPath = initializePath("java.library.path");
            for (int i=0; i 















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