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/*
* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package com.sun.opengl.impl;
// FIXME: refactor Java SE dependencies
//import java.awt.Toolkit;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.HashSet;
public class NativeLibLoader {
public interface LoaderAction {
/**
* Loads the library specified by libname. Optionally preloads the libraries specified by
* preload. The implementation should ignore, if the preload-libraries have already been
* loaded.
* @param libname the library to load
* @param preload the libraries to load before loading the main library
* @param doPreload true, iff the preload-libraries should be loaded
* @param ignoreError true, iff errors during loading the preload-libraries should be ignored
*/
void loadLibrary(String libname, String[] preload,
boolean doPreload, boolean ignoreError);
}
private static class DefaultAction implements LoaderAction {
public void loadLibrary(String libname, String[] preload,
boolean doPreload, boolean ignoreError) {
if (doPreload) {
for (int i=0; i<preload.length; i++) {
try {
loadLibraryInternal(preload[i]);
}
catch (UnsatisfiedLinkError e) {
if (!ignoreError && e.getMessage().indexOf("already loaded") < 0) {
throw e;
}
}
}
}
loadLibraryInternal(libname);
}
}
private static final HashSet loaded = new HashSet();
private static LoaderAction loaderAction = new DefaultAction();
public static void disableLoading() {
setLoadingAction(null);
}
public static void enableLoading() {
setLoadingAction(new DefaultAction());
}
public static synchronized void setLoadingAction(LoaderAction action) {
loaderAction = action;
}
protected static synchronized void loadLibrary(String libname, String[] preload,
boolean doPreload, boolean ignoreError) {
if (loaderAction != null && !loaded.contains(libname))
{
loaderAction.loadLibrary(libname, preload, doPreload, ignoreError);
loaded.add(libname);
}
}
public static void loadCore() {
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
loadLibrary("jogl", null, false, false);
return null;
}
});
}
public static void loadCgImpl() {
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
String[] preload = { "cg", "cgGL" };
loadLibrary("jogl_cg", preload, true, true);
return null;
}
});
}
//----------------------------------------------------------------------
// Support for the new JNLPAppletLauncher
//
private static boolean usingJNLPAppletLauncher;
private static Method jnlpLoadLibraryMethod;
static {
AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
String sunAppletLauncher = System.getProperty("sun.jnlp.applet.launcher");
usingJNLPAppletLauncher = Boolean.valueOf(sunAppletLauncher).booleanValue();
return null;
}
});
}
// I hate the amount of delegation currently in this class
private static void loadLibraryInternal(String libraryName) {
// Note: special-casing JAWT which is built in to the JDK
if (usingJNLPAppletLauncher && !libraryName.equals("jawt")) {
try {
if (jnlpLoadLibraryMethod == null) {
Class jnlpAppletLauncherClass = Class.forName("org.jdesktop.applet.util.JNLPAppletLauncher");
jnlpLoadLibraryMethod = jnlpAppletLauncherClass.getDeclaredMethod("loadLibrary", new Class[] { String.class });
}
jnlpLoadLibraryMethod.invoke(null, new Object[] { libraryName });
} catch (Exception e) {
Throwable t = e;
if (t instanceof InvocationTargetException) {
t = ((InvocationTargetException) t).getTargetException();
}
if (t instanceof Error)
throw (Error) t;
if (t instanceof RuntimeException) {
throw (RuntimeException) t;
}
// Throw UnsatisfiedLinkError for best compatibility with System.loadLibrary()
throw (UnsatisfiedLinkError) new UnsatisfiedLinkError().initCause(e);
}
} else {
// FIXME: remove
// System.out.println("sun.boot.library.path=" + System.getProperty("sun.boot.library.path"));
System.loadLibrary(libraryName);
}
}
}
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