blob: 5e08a7f05b766a43a3cdba1fdd6ad3a9e6fd99c4 (
plain) (
blame)
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
|
/*******************************************************************************
* Copyright (c) 2013, 2016 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.compatibility.state;
import java.util.*;
import java.util.concurrent.atomic.AtomicBoolean;
import org.eclipse.osgi.container.*;
import org.eclipse.osgi.internal.resolver.BaseDescriptionImpl.BaseCapability;
import org.eclipse.osgi.service.resolver.BundleDescription;
import org.eclipse.osgi.service.resolver.State;
import org.osgi.framework.*;
import org.osgi.framework.hooks.resolver.ResolverHook;
import org.osgi.framework.hooks.resolver.ResolverHookFactory;
import org.osgi.framework.namespace.ExecutionEnvironmentNamespace;
import org.osgi.framework.namespace.HostNamespace;
import org.osgi.framework.wiring.*;
class PlatformBundleListener implements SynchronousBundleListener, FrameworkListener, ResolverHookFactory {
private final State systemState;
private final StateConverter converter;
private final ModuleDatabase database;
private final ModuleContainer container;
private long lastResolveStamp = -1;
private AtomicBoolean gotUnresolved = new AtomicBoolean(false);
PlatformBundleListener(State systemState, StateConverter converter, ModuleDatabase database, ModuleContainer container) {
this.systemState = systemState;
this.converter = converter;
this.database = database;
this.container = container;
}
@Override
public void bundleChanged(BundleEvent event) {
switch (event.getType()) {
case BundleEvent.INSTALLED : {
BundleRevision revision = event.getBundle().adapt(BundleRevision.class);
if (revision != null) {
systemState.addBundle(converter.createDescription(revision));
systemState.setTimeStamp(database.getRevisionsTimestamp());
}
break;
}
case BundleEvent.UNINSTALLED : {
systemState.removeBundle(event.getBundle().getBundleId());
systemState.setTimeStamp(database.getRevisionsTimestamp());
break;
}
case BundleEvent.UPDATED : {
BundleRevision revision = event.getBundle().adapt(BundleRevision.class);
if (revision != null) {
systemState.updateBundle(converter.createDescription(revision));
systemState.setTimeStamp(database.getRevisionsTimestamp());
}
break;
}
case BundleEvent.UNRESOLVED : {
gotUnresolved.set(true);
break;
}
case BundleEvent.RESOLVED : {
resolve(gotUnresolved.getAndSet(false));
break;
}
default :
// do nothing
break;
}
}
private void resolve(boolean uninstalled) {
database.readLock();
try {
if (lastResolveStamp != database.getRevisionsTimestamp()) {
Collection<ModuleRevision> containerRemovalPending = container.getRemovalPending();
BundleDescription[] stateRemovalPendingDescs = systemState.getRemovalPending();
Collection<BundleDescription> stateRemovalPending = new ArrayList<>(stateRemovalPendingDescs.length);
for (BundleDescription description : stateRemovalPendingDescs) {
if (!containerRemovalPending.contains(description.getUserObject())) {
stateRemovalPending.add(description);
}
}
if (!stateRemovalPending.isEmpty()) {
systemState.resolve(stateRemovalPending.toArray(new BundleDescription[stateRemovalPending.size()]), true);
} else {
systemState.resolve(!uninstalled);
}
lastResolveStamp = database.getRevisionsTimestamp();
systemState.setTimeStamp(database.getRevisionsTimestamp());
}
} finally {
database.readUnlock();
}
}
@Override
public void frameworkEvent(FrameworkEvent event) {
if (event.getType() == FrameworkEvent.PACKAGES_REFRESHED) {
resolve(gotUnresolved.getAndSet(false));
}
}
@Override
public ResolverHook begin(Collection<BundleRevision> triggers) {
return new ResolverHook() {
@Override
public void filterSingletonCollisions(BundleCapability singleton, Collection<BundleCapability> collisionCandidates) {
BundleDescription desc = (BundleDescription) singleton.getRevision();
ModuleRevision revision = (ModuleRevision) desc.getUserObject();
if (revision.getWiring() != null) {
collisionCandidates.clear();
} else {
for (Iterator<BundleCapability> iCandidates = collisionCandidates.iterator(); iCandidates.hasNext();) {
BundleDescription candDesc = (BundleDescription) iCandidates.next().getRevision();
ModuleRevision candRevision = (ModuleRevision) candDesc.getUserObject();
if (candRevision.getWiring() == null) {
iCandidates.remove();
}
}
}
}
@Override
public void filterResolvable(Collection<BundleRevision> candidates) {
for (Iterator<BundleRevision> iCandidates = candidates.iterator(); iCandidates.hasNext();) {
BundleDescription candDesc = (BundleDescription) iCandidates.next();
ModuleRevision candRevision = (ModuleRevision) candDesc.getUserObject();
if (candRevision.getWiring() == null) {
iCandidates.remove();
}
}
}
@Override
public void filterMatches(BundleRequirement requirement, Collection<BundleCapability> candidates) {
String namespace = requirement.getNamespace();
BundleDescription reqDesc = (BundleDescription) requirement.getRevision();
ModuleRevision reqRevision = (ModuleRevision) reqDesc.getUserObject();
ModuleWiring reqWiring = reqRevision.getWiring();
if (reqWiring == null) {
candidates.clear();
return;
}
Collection<ModuleWiring> wirings = new ArrayList<>(1);
if ((reqRevision.getTypes() & BundleRevision.TYPE_FRAGMENT) != 0) {
if (ExecutionEnvironmentNamespace.EXECUTION_ENVIRONMENT_NAMESPACE.equals(namespace) || HostNamespace.HOST_NAMESPACE.equals(namespace)) {
wirings.add(reqWiring);
} else {
List<ModuleWire> hostWires = reqWiring.getRequiredModuleWires(namespace);
for (ModuleWire hostWire : hostWires) {
ModuleWiring hostWiring = hostWire.getProviderWiring();
if (hostWiring != null) {
wirings.add(hostWiring);
}
}
}
} else {
wirings.add(reqWiring);
}
for (Iterator<BundleCapability> iCandidates = candidates.iterator(); iCandidates.hasNext();) {
BaseCapability baseCapability = (BaseCapability) iCandidates.next();
Object userObject = baseCapability.getBaseDescription().getUserObject();
boolean foundCandidate = false;
wirings: for (ModuleWiring wiring : wirings) {
List<ModuleWire> wires = wiring.getRequiredModuleWires(namespace);
for (ModuleWire wire : wires) {
if (userObject instanceof ModuleRevision && userObject.equals(wire.getProvider())) {
foundCandidate = true;
} else if (userObject instanceof ModuleCapability && userObject.equals(wire.getCapability())) {
foundCandidate = true;
}
if (foundCandidate)
break wirings;
}
}
if (!foundCandidate) {
iCandidates.remove();
}
}
}
@Override
public void end() {
// nothing
}
};
}
}
|
