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1
11
12 package org.eclipse.core.internal.plugins;
13
14 import java.util.*;
15 import java.util.ArrayList  ;
16 import org.eclipse.core.internal.runtime.InternalPlatform;
17 import org.eclipse.core.runtime.*;
18 import org.osgi.framework.*;
19
20
23 public class PluginRegistry implements IPluginRegistry {
24 private IExtensionRegistry extRegistry;
25 private RegistryListener listener;
26
27 protected WeakHashMap descriptors = new WeakHashMap();
29 public PluginRegistry() {
30 extRegistry = InternalPlatform.getDefault().getRegistry();
31 listener = new RegistryListener();
32 InternalPlatform.getDefault().getBundleContext().addBundleListener(listener);
33 }
34
35 public void close() {
36 InternalPlatform.getDefault().getBundleContext().removeBundleListener(listener);
37 listener = null;
38 descriptors = null;
39 }
40
41
44 public IConfigurationElement[] getConfigurationElementsFor(String uniqueId) {
45 return extRegistry.getConfigurationElementsFor(uniqueId);
46 }
47
48
51 public IConfigurationElement[] getConfigurationElementsFor(String pluginId, String pointId) {
52 return extRegistry.getConfigurationElementsFor(pluginId, pointId);
53 }
54
55
58 public IConfigurationElement[] getConfigurationElementsFor(String pluginId, String pointId, String extensionId) {
59 return extRegistry.getConfigurationElementsFor(pluginId, pointId, extensionId);
60 }
61
62
65 public IExtension getExtension(String xptUniqueId, String extUniqueId) {
66 return extRegistry.getExtension(xptUniqueId, extUniqueId);
67 }
68
69
72 public IExtension getExtension(String pluginId, String xptSimpleId, String extId) {
73 return extRegistry.getExtension(pluginId, xptSimpleId, extId);
74 }
75
76
79 public IExtensionPoint getExtensionPoint(String xptUniqueId) {
80 return extRegistry.getExtensionPoint(xptUniqueId);
81 }
82
83
86 public IExtensionPoint getExtensionPoint(String plugin, String xpt) {
87 return extRegistry.getExtensionPoint(plugin, xpt);
88 }
89
90
93 public IExtensionPoint[] getExtensionPoints() {
94 return extRegistry.getExtensionPoints();
95 }
96
97
100 public IPluginDescriptor getPluginDescriptor(String plugin) {
101 Bundle correspondingBundle = InternalPlatform.getDefault().getBundle(plugin);
102 if (correspondingBundle == null)
103 return null;
104 return getPluginDescriptor(correspondingBundle);
105 }
106
107 private PluginDescriptor getPluginDescriptor(Bundle bundle) {
108 if (InternalPlatform.getDefault().isFragment(bundle) || descriptors == null) {
109 return null;
110 }
111 synchronized(descriptors) {
112 PluginDescriptor correspondingDescriptor = (PluginDescriptor) descriptors.get(bundle);
113 if (bundle != null) {
114 if (correspondingDescriptor == null || correspondingDescriptor.getBundle() != bundle) {
116 correspondingDescriptor = new PluginDescriptor(bundle);
118 descriptors.put(bundle, correspondingDescriptor);
119 }
120 return correspondingDescriptor;
121 }
122 if (correspondingDescriptor != null)
124 descriptors.remove(bundle);
125 }
126 return null;
127 }
128
129
132 public IPluginDescriptor[] getPluginDescriptors(String plugin) {
133 Bundle[] bundles = InternalPlatform.getDefault().getBundles(plugin, null);
134 if (bundles == null)
135 return new IPluginDescriptor[0];
136 IPluginDescriptor[] results = new IPluginDescriptor[bundles.length];
137 int added = 0;
138 for (int i = 0; i < bundles.length; i++) {
139 PluginDescriptor desc = getPluginDescriptor(bundles[i]);
140 if (desc != null)
141 results[added++] = desc;
142 }
143 if (added == bundles.length)
144 return results;
145
146 if (added == 0)
147 return new IPluginDescriptor[0];
148
149 IPluginDescriptor[] toReturn = new IPluginDescriptor[added];
150 System.arraycopy(results, 0, toReturn, 0, added);
151 return toReturn;
152 }
153
154
157 public IPluginDescriptor getPluginDescriptor(String pluginId, PluginVersionIdentifier version) {
158 Bundle[] bundles = InternalPlatform.getDefault().getBundles(pluginId, version.toString());
159 if (bundles == null)
160 return null;
161
162 return getPluginDescriptor(bundles[0]);
163 }
164
165
168 public IPluginDescriptor[] getPluginDescriptors() {
169 Bundle[] bundles = InternalPlatform.getDefault().getBundleContext().getBundles();
170 ArrayList pds = new ArrayList (bundles.length);
171 for (int i = 0; i < bundles.length; i++) {
172 boolean isFragment = InternalPlatform.getDefault().isFragment(bundles[i]);
173 if (!isFragment && bundles[i].getSymbolicName() != null && (bundles[i].getState() == Bundle.RESOLVED || bundles[i].getState() == Bundle.STARTING || bundles[i].getState() == Bundle.ACTIVE))
174 pds.add(getPluginDescriptor(bundles[i]));
175 }
176 IPluginDescriptor[] result = new IPluginDescriptor[pds.size()];
177 return (IPluginDescriptor[]) pds.toArray(result);
178 }
179
180 void logError(IStatus status) {
181 InternalPlatform.getDefault().log(status);
182 if (InternalPlatform.DEBUG)
183 System.out.println(status.getMessage());
184 }
185
186 public class RegistryListener implements BundleListener {
187 public void bundleChanged(BundleEvent event) {
188 if (descriptors == null)
189 return;
190
191 synchronized(descriptors) {
192 if (event.getType() == BundleEvent.UNINSTALLED || event.getType() == BundleEvent.UNRESOLVED) {
193 descriptors.remove(event.getBundle());
194 }
195 }
196 }
197 }
198 }
199 |
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