1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/ws/model/Injector.java Tue Mar 06 16:09:35 2012 -0800
1.3 @@ -0,0 +1,108 @@
1.4 +/*
1.5 + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.xml.internal.ws.model;
1.30 +
1.31 +import javax.xml.ws.WebServiceException;
1.32 +import java.lang.reflect.InvocationTargetException;
1.33 +import java.lang.reflect.Method;
1.34 +import java.net.URL;
1.35 +import java.security.AccessController;
1.36 +import java.security.PrivilegedAction;
1.37 +import java.util.logging.Level;
1.38 +import java.util.logging.Logger;
1.39 +
1.40 +/**
1.41 + * A {@link ClassLoader} used to "inject" wrapper and exception bean classes
1.42 + * into the VM.
1.43 + *
1.44 + * @author Jitendra kotamraju
1.45 + */
1.46 +final class Injector {
1.47 +
1.48 + private static final Logger LOGGER = Logger.getLogger(Injector.class.getName());
1.49 +
1.50 + private static final Method defineClass;
1.51 + private static final Method resolveClass;
1.52 + private static final Method getPackage;
1.53 + private static final Method definePackage;
1.54 +
1.55 + static {
1.56 + try {
1.57 + defineClass = ClassLoader.class.getDeclaredMethod("defineClass",String.class,byte[].class,Integer.TYPE,Integer.TYPE);
1.58 + resolveClass = ClassLoader.class.getDeclaredMethod("resolveClass",Class.class);
1.59 + getPackage = ClassLoader.class.getDeclaredMethod("getPackage", String.class);
1.60 + definePackage = ClassLoader.class.getDeclaredMethod("definePackage",
1.61 + String.class, String.class, String.class, String.class,
1.62 + String.class, String.class, String.class, URL.class);
1.63 + } catch (NoSuchMethodException e) {
1.64 + // impossible
1.65 + throw new NoSuchMethodError(e.getMessage());
1.66 + }
1.67 + AccessController.doPrivileged(new PrivilegedAction<Void>() {
1.68 + public Void run() {
1.69 + // TODO: check security implication
1.70 + // do these setAccessible allow anyone to call these methods freely?s
1.71 + defineClass.setAccessible(true);
1.72 + resolveClass.setAccessible(true);
1.73 + getPackage.setAccessible(true);
1.74 + definePackage.setAccessible(true);
1.75 + return null;
1.76 + }
1.77 + });
1.78 + }
1.79 +
1.80 + static synchronized Class inject(ClassLoader cl, String className, byte[] image) {
1.81 + // To avoid race conditions let us check if the classloader
1.82 + // already contains the class
1.83 + try {
1.84 + return cl.loadClass(className);
1.85 + } catch (ClassNotFoundException e) {
1.86 + // nothing to do
1.87 + }
1.88 + try {
1.89 + int packIndex = className.lastIndexOf('.');
1.90 + if (packIndex != -1) {
1.91 + String pkgname = className.substring(0, packIndex);
1.92 + // Check if package already loaded.
1.93 + Package pkg = (Package)getPackage.invoke(cl, pkgname);
1.94 + if (pkg == null) {
1.95 + definePackage.invoke(cl, pkgname, null, null, null, null, null, null, null);
1.96 + }
1.97 + }
1.98 +
1.99 + Class c = (Class)defineClass.invoke(cl,className.replace('/','.'),image,0,image.length);
1.100 + resolveClass.invoke(cl, c);
1.101 + return c;
1.102 + } catch (IllegalAccessException e) {
1.103 + LOGGER.log(Level.FINE,"Unable to inject "+className,e);
1.104 + throw new WebServiceException(e);
1.105 + } catch (InvocationTargetException e) {
1.106 + LOGGER.log(Level.FINE,"Unable to inject "+className,e);
1.107 + throw new WebServiceException(e);
1.108 + }
1.109 + }
1.110 +
1.111 +}
