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- /*******************************************************************************
- * Copyright (c) 2006 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Matthew Webster - initial implementation
- *******************************************************************************/
- package org.aspectj.weaver.loadtime;
-
- import java.io.File;
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.lang.reflect.InvocationTargetException;
- import java.lang.reflect.Method;
- import java.net.URL;
- import java.net.URLClassLoader;
- import java.util.Iterator;
- import java.util.LinkedList;
- import java.util.List;
- import java.util.jar.JarFile;
- import java.util.zip.ZipEntry;
-
- import org.aspectj.util.FileUtil;
- import org.aspectj.util.LangUtil;
-
- import com.bea.jvm.ClassPreProcessor;
- import com.bea.jvm.JVMFactory;
-
- import junit.framework.TestCase;
-
- public class JRockitAgentTest extends TestCase {
-
- protected void setUp() throws Exception {
- super.setUp();
- }
-
- protected void tearDown() throws Exception {
- super.tearDown();
- }
-
- public void testJRockitAgent() {
- ClassPreProcessor preProcessor = new JRockitAgent();
- ClassPreProcessor expectedPreProcessor = JVMFactory.getJVM().getClassLibrary().getClassPreProcessor();
- assertEquals("JRocketAgent must be registered", expectedPreProcessor, preProcessor);
- }
-
- public void testPreProcess() {
- ClassPreProcessor preProcessor = new JRockitAgent();
- preProcessor.preProcess(null, "foo.Bar", new byte[] {});
- }
-
- public void testJrockitRecursionProtection() {
- if (LangUtil.is11VMOrGreater()) {
- // Skip test, not castable to URLClassLoader
- return;
- }
- URLClassLoader thisLoader = (URLClassLoader) getClass().getClassLoader();
- URL jrockit = FileUtil.getFileURL(new File("../lib/ext/jrockit/jrockit.jar"));
- URL[] urls = new URL[] {jrockit};
- thisLoader = new URLClassLoader(urls, thisLoader);
- ClassLoader contextLoader = Thread.currentThread().getContextClassLoader();
-
- try {
- /* Needed by Commons Logging */
- Thread.currentThread().setContextClassLoader(thisLoader.getParent());
-
- ClassLoader loader = new JRockitClassLoader(thisLoader);
-
- Class.forName("java.lang.Object", false, loader);
- Class.forName("junit.framework.TestCase", false, loader);
- } catch (Exception ex) {
- ex.printStackTrace();
- fail(ex.toString());
- } finally {
- Thread.currentThread().setContextClassLoader(contextLoader);
- }
- }
-
- private class JRockitClassLoader extends ClassLoader {
-
- public final static boolean debug = false;
-
- private List path = new LinkedList();
- // private com.bea.jvm.ClassPreProcessor agent;
- private Object agent;
- private Method preProcess;
-
- public JRockitClassLoader(URLClassLoader clone) throws Exception {
- /* Use extensions loader */
- super(clone.getParent());
-
- URL[] urls = clone.getURLs();
- for (int i = 0; i < urls.length; i++) {
- Object pathElement;
- URL url = urls[i];
- if (debug)
- System.out.println("JRockitClassLoader.JRockitClassLoader() url=" + url.getPath());
- File file = new File(encode(url.getFile()));
- if (debug)
- System.out.println("JRockitClassLoader.JRockitClassLoader() file" + file);
- if (file.isDirectory())
- pathElement = file;
- else if (file.exists() && file.getName().endsWith(".jar"))
- pathElement = new JarFile(file);
- else
- throw new RuntimeException(file.getAbsolutePath());
- path.add(pathElement);
- }
-
- Class agentClazz = Class.forName("org.aspectj.weaver.loadtime.JRockitAgent", false, this);
- Object obj = agentClazz.newInstance();
- if (debug)
- System.out.println("JRockitClassLoader.JRockitClassLoader() obj=" + obj);
- this.agent = obj;
- byte[] bytes = new byte[] {};
- Class[] parameterTypes = new Class[] { java.lang.ClassLoader.class, java.lang.String.class, bytes.getClass() };
- preProcess = agentClazz.getMethod("preProcess", parameterTypes);
- }
-
- /* Get rid of escaped characters */
- private String encode(String s) {
- StringBuffer result = new StringBuffer();
- int i = s.indexOf("%");
- while (i != -1) {
- result.append(s.substring(0, i));
- String escaped = s.substring(i + 1, i + 3);
- s = s.substring(i + 3);
- Integer value = Integer.valueOf(escaped, 16);
- result.append(new Character((char) value.intValue()));
- i = s.indexOf("%");
- }
- result.append(s);
- return result.toString();
- }
-
- protected Class findClass(String name) throws ClassNotFoundException {
- if (debug)
- System.out.println("> JRockitClassLoader.findClass() name=" + name);
- Class clazz = null;
- try {
- clazz = super.findClass(name);
- } catch (ClassNotFoundException ex) {
- for (Iterator i = path.iterator(); clazz == null && i.hasNext();) {
- byte[] classBytes = null;
- try {
- Object pathElement = i.next();
- if (pathElement instanceof File) {
- File dir = (File) pathElement;
- String className = name.replace('.', '/') + ".class";
- File classFile = new File(dir, className);
- if (classFile.exists())
- classBytes = loadClassFromFile(name, classFile);
- } else {
- JarFile jar = (JarFile) pathElement;
- String className = name.replace('.', '/') + ".class";
- ZipEntry entry = jar.getEntry(className);
- if (entry != null)
- classBytes = loadBytesFromZipEntry(jar, entry);
- }
-
- if (classBytes != null) {
- clazz = defineClass(name, classBytes);
- }
- } catch (IOException ioException) {
- ex.printStackTrace();
- }
- }
- }
-
- if (debug)
- System.out.println("< JRockitClassLoader.findClass() name=" + name);
- return clazz;
- }
-
- private Class defineClass(String name, byte[] bytes) {
- if (debug)
- System.out.println("> JRockitClassLoader.defineClass() name=" + name);
- try {
- if (agent != null)
- preProcess.invoke(agent, new Object[] { this, name, bytes });
- } catch (IllegalAccessException iae) {
- iae.printStackTrace();
- throw new ClassFormatError(iae.getMessage());
- } catch (InvocationTargetException ite) {
- ite.printStackTrace();
- throw new ClassFormatError(ite.getTargetException().getMessage());
- }
- if (debug)
- System.out.println("< JRockitClassLoader.defineClass() name=" + name);
- return super.defineClass(name, bytes, 0, bytes.length);
- }
-
- private byte[] loadClassFromFile(String name, File file) throws IOException {
- if (debug)
- System.out.println("JRockitClassLoader.loadClassFromFile() file=" + file);
-
- byte[] bytes;
- bytes = new byte[(int) file.length()];
- FileInputStream fis = null;
- try {
- fis = new FileInputStream(file);
- bytes = readBytes(fis, bytes);
- } finally {
- if (fis != null)
- fis.close();
- }
-
- return bytes;
- }
-
- private byte[] loadBytesFromZipEntry(JarFile jar, ZipEntry entry) throws IOException {
- if (debug)
- System.out.println("JRockitClassLoader.loadBytesFromZipEntry() entry=" + entry);
-
- byte[] bytes;
- bytes = new byte[(int) entry.getSize()];
- InputStream is = null;
- try {
- is = jar.getInputStream(entry);
- bytes = readBytes(is, bytes);
- } finally {
- if (is != null)
- is.close();
- }
-
- return bytes;
- }
-
- private byte[] readBytes(InputStream is, byte[] bytes) throws IOException {
- for (int offset = 0; offset < bytes.length;) {
- int read = is.read(bytes, offset, bytes.length - offset);
- offset += read;
- }
- return bytes;
- }
- }
- }
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