| /******************************************************************************* |
| * Copyright (c) 2006, 2011 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.osgi.internal.baseadaptor; |
| |
| import java.io.File; |
| import java.security.ProtectionDomain; |
| import java.util.ArrayList; |
| import org.eclipse.osgi.baseadaptor.*; |
| import org.eclipse.osgi.baseadaptor.bundlefile.BundleEntry; |
| import org.eclipse.osgi.baseadaptor.bundlefile.BundleFile; |
| import org.eclipse.osgi.baseadaptor.hooks.ClassLoadingHook; |
| import org.eclipse.osgi.baseadaptor.loader.*; |
| import org.eclipse.osgi.framework.adaptor.BundleProtectionDomain; |
| import org.eclipse.osgi.framework.adaptor.ClassLoaderDelegate; |
| import org.eclipse.osgi.framework.util.KeyedElement; |
| |
| public class DevClassLoadingHook implements ClassLoadingHook, HookConfigurator, KeyedElement { |
| public static final String KEY = DevClassLoadingHook.class.getName(); |
| public static final int HASHCODE = KEY.hashCode(); |
| private static final String FRAGMENT = "@fragment@"; //$NON-NLS-1$ |
| |
| public byte[] processClass(String name, byte[] classbytes, ClasspathEntry classpathEntry, BundleEntry entry, ClasspathManager manager) { |
| // Do nothing |
| return null; |
| } |
| |
| public boolean addClassPathEntry(ArrayList<ClasspathEntry> cpEntries, String cp, ClasspathManager hostmanager, BaseData sourcedata, ProtectionDomain sourcedomain) { |
| // first check that we are in devmode for this sourcedata |
| String[] devClassPath = !DevClassPathHelper.inDevelopmentMode() ? null : DevClassPathHelper.getDevClassPath(sourcedata.getSymbolicName()); |
| if (devClassPath == null || devClassPath.length == 0) |
| return false; // not in dev mode return |
| // check that dev classpath entries have not already been added; we mark this in the first entry below |
| if (cpEntries.size() > 0 && cpEntries.get(0).getUserObject(KEY) != null) |
| return false; // this source has already had its dev classpath entries added. |
| boolean result = false; |
| for (int i = 0; i < devClassPath.length; i++) { |
| if (ClasspathManager.addClassPathEntry(cpEntries, devClassPath[i], hostmanager, sourcedata, sourcedomain)) |
| result = true; |
| else { |
| String devCP = devClassPath[i]; |
| boolean fromFragment = devCP.endsWith(FRAGMENT); |
| if (!fromFragment && devCP.indexOf("..") >= 0) { //$NON-NLS-1$ |
| // if in dev mode, try using cp as a relative path from the base bundle file |
| File base = sourcedata.getBundleFile().getBaseFile(); |
| if (base.isDirectory()) { |
| // this is only supported for directory bundles |
| ClasspathEntry entry = hostmanager.getExternalClassPath(new File(base, devCP).getAbsolutePath(), sourcedata, sourcedomain); |
| if (entry != null) { |
| cpEntries.add(entry); |
| result = true; |
| } |
| } |
| } else { |
| // if in dev mode, try using the cp as an absolute path |
| // we assume absolute entries come from fragments. Find the source |
| if (fromFragment) |
| devCP = devCP.substring(0, devCP.length() - FRAGMENT.length()); |
| BaseData fragData = findFragmentSource(sourcedata, devCP, hostmanager, fromFragment); |
| if (fragData != null) { |
| ClasspathEntry entry = hostmanager.getExternalClassPath(devCP, fragData, sourcedomain); |
| if (entry != null) { |
| cpEntries.add(entry); |
| result = true; |
| } |
| } |
| } |
| } |
| } |
| // mark the first entry of the list. |
| // This way we can quickly tell that dev classpath entries have been added to the list |
| if (result && cpEntries.size() > 0) |
| cpEntries.get(0).addUserObject(this); |
| return result; |
| } |
| |
| private BaseData findFragmentSource(BaseData hostData, String cp, ClasspathManager manager, boolean fromFragment) { |
| if (hostData != manager.getBaseData()) |
| return hostData; |
| |
| File file = new File(cp); |
| if (!file.isAbsolute()) |
| return hostData; |
| FragmentClasspath[] fragCP = manager.getFragmentClasspaths(); |
| for (int i = 0; i < fragCP.length; i++) { |
| BundleFile fragBase = fragCP[i].getBundleData().getBundleFile(); |
| File fragFile = fragBase.getBaseFile(); |
| if (fragFile != null && file.getPath().startsWith(fragFile.getPath())) |
| return fragCP[i].getBundleData(); |
| } |
| return fromFragment ? null : hostData; |
| } |
| |
| public String findLibrary(BaseData data, String libName) { |
| // Do nothing |
| return null; |
| } |
| |
| public ClassLoader getBundleClassLoaderParent() { |
| // Do nothing |
| return null; |
| } |
| |
| public BaseClassLoader createClassLoader(ClassLoader parent, ClassLoaderDelegate delegate, BundleProtectionDomain domain, BaseData data, String[] bundleclasspath) { |
| // do nothing |
| return null; |
| } |
| |
| public void initializedClassLoader(BaseClassLoader baseClassLoader, BaseData data) { |
| // do nothing |
| } |
| |
| public void addHooks(HookRegistry hookRegistry) { |
| if (DevClassPathHelper.inDevelopmentMode()) |
| // only add dev classpath manager if in dev mode |
| hookRegistry.addClassLoadingHook(new DevClassLoadingHook()); |
| |
| } |
| |
| public boolean compare(KeyedElement other) { |
| return other.getKey() == KEY; |
| } |
| |
| public Object getKey() { |
| return KEY; |
| } |
| |
| public int getKeyHashCode() { |
| return HASHCODE; |
| } |
| } |