1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/*******************************************************************************
* Copyright (c) 2006, 2012 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:
* David Knibb initial implementation
* Matthew Webster Eclipse 3.2 changes
* Martin Lippert supplementing mechanism reworked
*******************************************************************************/
package org.eclipse.equinox.weaving.hooks;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.equinox.service.weaving.ISupplementerRegistry;
import org.eclipse.equinox.weaving.adaptors.Debug;
import org.eclipse.equinox.weaving.adaptors.IWeavingAdaptor;
import org.eclipse.equinox.weaving.adaptors.WeavingAdaptor;
import org.eclipse.equinox.weaving.adaptors.WeavingAdaptorFactory;
import org.eclipse.osgi.internal.loader.ModuleClassLoader;
import org.eclipse.osgi.internal.loader.classpath.ClasspathEntry;
import org.eclipse.osgi.internal.loader.classpath.ClasspathManager;
import org.eclipse.osgi.storage.BundleInfo.Generation;
import org.eclipse.osgi.storage.bundlefile.BundleEntry;
import org.eclipse.osgi.storage.bundlefile.BundleFile;
import org.eclipse.osgi.storage.bundlefile.BundleFileWrapper;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
import org.osgi.framework.ServiceReference;
import org.osgi.service.packageadmin.PackageAdmin;
public class WeavingHook extends AbstractWeavingHook {
private final WeavingAdaptorFactory adaptorFactory;
private final Map<Long, IWeavingAdaptor> adaptors;
private BundleContext bundleContext;
public WeavingHook() {
if (Debug.DEBUG_GENERAL) Debug.println("- WeavingHook.<init>()");
this.adaptorFactory = new WeavingAdaptorFactory();
this.adaptors = new HashMap<Long, IWeavingAdaptor>();
}
@Override
public void classLoaderCreated(final ModuleClassLoader classLoader) {
if (Debug.DEBUG_GENERAL)
Debug.println("> WeavingHook.initializedClassLoader() bundle="
+ classLoader.getBundle().getSymbolicName()
+ ", loader="
+ classLoader
+ ", bundleFile="
+ classLoader.getClasspathManager().getGeneration()
.getBundleFile());
final IWeavingAdaptor adaptor = createWeavingAdaptor(classLoader
.getClasspathManager().getGeneration(), classLoader);
this.adaptors.put(classLoader.getBundle().getBundleId(), adaptor);
if (Debug.DEBUG_GENERAL)
Debug.println("< WeavingHook.initializedClassLoader() adaptor="
+ adaptor);
}
private IWeavingAdaptor createWeavingAdaptor(final Generation generation,
final ModuleClassLoader classLoader) {
if (Debug.DEBUG_GENERAL)
Debug.println("> WeavingHook.createAspectJAdaptor() location="
+ generation.getRevision().getRevisions().getModule()
.getLocation());
IWeavingAdaptor adaptor = null;
if (adaptorFactory != null) {
adaptor = new WeavingAdaptor(generation, adaptorFactory, null,
null, classLoader);
} else {
if (Debug.DEBUG_GENERAL)
Debug.println("- WeavingHook.createAspectJAdaptor() factory="
+ adaptorFactory);
}
if (Debug.DEBUG_GENERAL)
Debug.println("< WeavingHook.createAspectJAdaptor() adaptor="
+ adaptor);
return adaptor;
}
public IWeavingAdaptor getAdaptor(final long bundleID) {
return this.adaptors.get(bundleID);
}
public IWeavingAdaptor getHostBundleAdaptor(final long bundleID) {
final Bundle bundle = this.bundleContext.getBundle(bundleID);
if (bundle != null) {
final Bundle host = adaptorFactory.getHost(bundle);
if (host != null) {
final long hostBundleID = host.getBundleId();
return this.adaptors.get(hostBundleID);
}
}
return null;
}
private void initialize(final BundleContext context) {
if (Debug.DEBUG_GENERAL)
Debug.println("> WeavingHook.initialize() context=" + context);
this.bundleContext = context;
final ISupplementerRegistry supplementerRegistry = getSupplementerRegistry();
adaptorFactory.initialize(context, supplementerRegistry);
final ServiceReference<PackageAdmin> serviceReference = context
.getServiceReference(PackageAdmin.class);
final PackageAdmin packageAdmin = context.getService(serviceReference);
supplementerRegistry.setBundleContext(context);
supplementerRegistry.setPackageAdmin(packageAdmin);
context.addBundleListener(new SupplementBundleListener(
supplementerRegistry));
// final re-build supplementer final registry state for final installed bundles
final Bundle[] installedBundles = context.getBundles();
for (int i = 0; i < installedBundles.length; i++) {
supplementerRegistry.addSupplementer(installedBundles[i], false);
}
for (int i = 0; i < installedBundles.length; i++) {
supplementerRegistry.addSupplementedBundle(installedBundles[i]);
}
if (Debug.DEBUG_GENERAL)
Debug.println("< WeavingHook.initialize() adaptorFactory="
+ adaptorFactory);
}
/**
* @see org.eclipse.equinox.weaving.hooks.AbstractWeavingHook#processClass(java.lang.String,
* byte[], org.eclipse.osgi.baseadaptor.loader.ClasspathEntry,
* org.eclipse.osgi.baseadaptor.bundlefile.BundleEntry,
* org.eclipse.osgi.baseadaptor.loader.ClasspathManager)
*/
@Override
public byte[] processClass(final String name, final byte[] classbytes,
final ClasspathEntry classpathEntry, final BundleEntry entry,
final ClasspathManager manager) {
byte[] newClassytes = null;
if (entry instanceof WeavingBundleEntry) {
final WeavingBundleEntry ajBundleEntry = (WeavingBundleEntry) entry;
if (!ajBundleEntry.dontWeave()) {
final IWeavingAdaptor adaptor = ajBundleEntry.getAdaptor();
newClassytes = adaptor.weaveClass(name, classbytes);
}
}
return newClassytes;
}
/**
* @see org.eclipse.equinox.weaving.hooks.AbstractWeavingHook#recordClassDefine(java.lang.String,
* java.lang.Class, byte[],
* org.eclipse.osgi.baseadaptor.loader.ClasspathEntry,
* org.eclipse.osgi.baseadaptor.bundlefile.BundleEntry,
* org.eclipse.osgi.baseadaptor.loader.ClasspathManager)
*/
@Override
public void recordClassDefine(final String name, final Class<?> clazz,
final byte[] classbytes, final ClasspathEntry classpathEntry,
final BundleEntry entry, final ClasspathManager manager) {
if (clazz == null) {
if (Debug.DEBUG_GENERAL) {
Debug.println("Error in defining class: " + name); //$NON-NLS-1$
}
return;
}
if (entry instanceof WeavingBundleEntry) {
final WeavingBundleEntry ajBundleEntry = (WeavingBundleEntry) entry;
if (!ajBundleEntry.dontWeave()) {
final IWeavingAdaptor adaptor = ajBundleEntry.getAdaptor();
final URL sourceFileURL = ajBundleEntry.getBundleFileURL();
adaptor.storeClass(name, sourceFileURL, clazz, classbytes);
}
}
}
public void resetAdaptor(final long bundleID) {
this.adaptors.remove(bundleID);
}
/**
* @see org.eclipse.equinox.weaving.hooks.AbstractWeavingHook#frameworkStart(org.osgi.framework.BundleContext)
*/
public void start(final BundleContext context) throws BundleException {
initialize(context);
}
/**
* @see org.eclipse.equinox.weaving.hooks.AbstractWeavingHook#frameworkStop(org.osgi.framework.BundleContext)
*/
public void stop(final BundleContext context) throws BundleException {
adaptorFactory.dispose(context);
}
/**
* @see org.eclipse.osgi.internal.hookregistry.BundleFileWrapperFactoryHook#wrapBundleFile(org.eclipse.osgi.storage.bundlefile.BundleFile,
* org.eclipse.osgi.storage.BundleInfo.Generation, boolean)
*/
public BundleFileWrapper wrapBundleFile(final BundleFile bundleFile,
final Generation generation, final boolean base) {
BundleFileWrapper wrapped = null;
if (Debug.DEBUG_BUNDLE)
Debug.println("> WeavingHook.wrapBundleFile() bundle="
+ (generation.getRevision() != null ? generation
.getRevision().getSymbolicName() : generation
.getBundleInfo().getBundleId()) + " bundleFile="
+ bundleFile + ", generation=" + generation + ", base="
+ base + ", baseFile=" + bundleFile.getBaseFile());
if (base) {
wrapped = new BaseWeavingBundleFile(new BundleAdaptorProvider(
generation, this), bundleFile);
} else {
wrapped = new WeavingBundleFile(new BundleAdaptorProvider(
generation, this), bundleFile);
}
if (Debug.DEBUG_BUNDLE)
Debug.println("< WeavingHook.wrapBundleFile() wrapped=" + wrapped);
return wrapped;
}
}
|
