0N/A/*
157N/A * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
157N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
157N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
157N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
157N/A * or visit www.oracle.com if you need additional information or have any
157N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A * Licensed Materials - Property of IBM
0N/A * RMI-IIOP v1.0
0N/A * Copyright IBM Corp. 1998 1999 All Rights Reserved
0N/A *
0N/A */
0N/A
0N/Apackage sun.rmi.rmic.iiop;
0N/A
0N/Aimport java.util.Hashtable;
0N/Aimport java.io.File;
0N/Aimport java.io.FileInputStream;
0N/A
0N/A/**
0N/A * DirectoryLoader is a simple ClassLoader which loads from a specified
0N/A * file system directory.
0N/A * @author Bryan Atsatt
0N/A */
0N/A
0N/Apublic class DirectoryLoader extends ClassLoader {
0N/A
0N/A private Hashtable cache;
0N/A private File root;
0N/A
0N/A /**
0N/A * Constructor.
0N/A */
0N/A public DirectoryLoader (File rootDir) {
0N/A cache = new Hashtable();
0N/A if (rootDir == null || !rootDir.isDirectory()) {
0N/A throw new IllegalArgumentException();
0N/A }
0N/A root = rootDir;
0N/A }
0N/A
0N/A private DirectoryLoader () {}
0N/A
0N/A /**
0N/A * Convenience version of loadClass which sets 'resolve' == true.
0N/A */
0N/A public Class loadClass(String className) throws ClassNotFoundException {
0N/A return loadClass(className, true);
0N/A }
0N/A
0N/A /**
0N/A * This is the required version of loadClass which is called
0N/A * both from loadClass above and from the internal function
0N/A * FindClassFromClass.
0N/A */
0N/A public synchronized Class loadClass(String className, boolean resolve)
0N/A throws ClassNotFoundException {
0N/A Class result;
0N/A byte classData[];
0N/A
0N/A // Do we already have it in the cache?
0N/A
0N/A result = (Class) cache.get(className);
0N/A
0N/A if (result == null) {
0N/A
0N/A // Nope, can we get if from the system class loader?
0N/A
0N/A try {
0N/A
0N/A result = super.findSystemClass(className);
0N/A
0N/A } catch (ClassNotFoundException e) {
0N/A
0N/A // No, so try loading it...
0N/A
0N/A classData = getClassFileData(className);
0N/A
0N/A if (classData == null) {
0N/A throw new ClassNotFoundException();
0N/A }
0N/A
0N/A // Parse the class file data...
0N/A
0N/A result = defineClass(classData, 0, classData.length);
0N/A
0N/A if (result == null) {
0N/A throw new ClassFormatError();
0N/A }
0N/A
0N/A // Resolve it...
0N/A
0N/A if (resolve) resolveClass(result);
0N/A
0N/A // Add to cache...
0N/A
0N/A cache.put(className, result);
0N/A }
0N/A }
0N/A
0N/A return result;
0N/A }
0N/A
0N/A /**
0N/A * Reurn a byte array containing the contents of the class file. Returns null
0N/A * if an exception occurs.
0N/A */
0N/A private byte[] getClassFileData (String className) {
0N/A
0N/A byte result[] = null;
0N/A FileInputStream stream = null;
0N/A
0N/A // Get the file...
0N/A
0N/A File classFile = new File(root,className.replace('.',File.separatorChar) + ".class");
0N/A
0N/A // Now get the bits...
0N/A
0N/A try {
0N/A stream = new FileInputStream(classFile);
0N/A result = new byte[stream.available()];
0N/A stream.read(result);
0N/A } catch(ThreadDeath death) {
0N/A throw death;
0N/A } catch (Throwable e) {
0N/A }
0N/A
0N/A finally {
0N/A if (stream != null) {
0N/A try {
0N/A stream.close();
0N/A } catch(ThreadDeath death) {
0N/A throw death;
0N/A } catch (Throwable e) {
0N/A }
0N/A }
0N/A }
0N/A
0N/A return result;
0N/A }
0N/A}