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
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
|
/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.openapi.roots.impl;
import com.intellij.ProjectTopics;
import com.intellij.openapi.Disposable;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.fileTypes.FileTypeEvent;
import com.intellij.openapi.fileTypes.FileTypeListener;
import com.intellij.openapi.fileTypes.FileTypeManager;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleManager;
import com.intellij.openapi.progress.ProgressManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.*;
import com.intellij.openapi.util.Disposer;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.VirtualFileManager;
import com.intellij.openapi.vfs.newvfs.BulkFileListener;
import com.intellij.openapi.vfs.newvfs.NewVirtualFile;
import com.intellij.openapi.vfs.newvfs.events.VFileEvent;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.Query;
import com.intellij.util.containers.ConcurrentIntObjectMap;
import com.intellij.util.containers.StripedLockIntObjectConcurrentHashMap;
import com.intellij.util.messages.MessageBusConnection;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.annotations.TestOnly;
import org.jetbrains.jps.model.module.JpsModuleSourceRootType;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public class DirectoryIndexImpl extends DirectoryIndex {
private static final Logger LOG = Logger.getInstance("#com.intellij.openapi.roots.impl.DirectoryIndexImpl");
private final Project myProject;
private final MessageBusConnection myConnection;
private volatile boolean myDisposed = false;
private volatile RootIndex myRootIndex = null;
public DirectoryIndexImpl(@NotNull Project project) {
myProject = project;
myConnection = project.getMessageBus().connect(project);
subscribeToFileChanges();
markContentRootsForRefresh();
Disposer.register(project, new Disposable() {
@Override
public void dispose() {
myDisposed = true;
myRootIndex = null;
}
});
}
protected void subscribeToFileChanges() {
myConnection.subscribe(FileTypeManager.TOPIC, new FileTypeListener.Adapter() {
@Override
public void fileTypesChanged(@NotNull FileTypeEvent event) {
myRootIndex = null;
}
});
myConnection.subscribe(ProjectTopics.PROJECT_ROOTS, new ModuleRootAdapter() {
@Override
public void rootsChanged(ModuleRootEvent event) {
myRootIndex = null;
}
});
myConnection.subscribe(VirtualFileManager.VFS_CHANGES, new BulkFileListener() {
@Override
public void before(@NotNull List<? extends VFileEvent> events) {
}
@Override
public void after(@NotNull List<? extends VFileEvent> events) {
RootIndex rootIndex = myRootIndex;
if (rootIndex != null && rootIndex.resetOnEvents(events)) {
myRootIndex = null;
}
}
});
}
protected void markContentRootsForRefresh() {
Module[] modules = ModuleManager.getInstance(myProject).getModules();
for (Module module : modules) {
VirtualFile[] contentRoots = ModuleRootManager.getInstance(module).getContentRoots();
for (VirtualFile contentRoot : contentRoots) {
if (contentRoot instanceof NewVirtualFile) {
((NewVirtualFile)contentRoot).markDirtyRecursively();
}
}
}
}
protected void dispatchPendingEvents() {
myConnection.deliverImmediately();
}
@Override
@NotNull
public Query<VirtualFile> getDirectoriesByPackageName(@NotNull String packageName, boolean includeLibrarySources) {
return getRootIndex().getDirectoriesByPackageName(packageName, includeLibrarySources);
}
@NotNull
private RootIndex getRootIndex() {
RootIndex rootIndex = myRootIndex;
if (rootIndex == null) {
myRootIndex = rootIndex = new RootIndex(myProject, createRootInfoCache());
}
return rootIndex;
}
protected RootIndex.InfoCache createRootInfoCache() {
return new RootIndex.InfoCache() {
// Upsource can't use int-mapping because different files may have the same id there
private final ConcurrentIntObjectMap<DirectoryInfo> myInfoCache = new StripedLockIntObjectConcurrentHashMap<DirectoryInfo>();
@Override
public void cacheInfo(@NotNull VirtualFile dir, @NotNull DirectoryInfo info) {
myInfoCache.put(((NewVirtualFile)dir).getId(), info);
}
@Override
public DirectoryInfo getCachedInfo(@NotNull VirtualFile dir) {
return myInfoCache.get(((NewVirtualFile)dir).getId());
}
};
}
@TestOnly
public void checkConsistency() {
getRootIndex().checkConsistency();
}
@Override
public DirectoryInfo getInfoForDirectory(@NotNull VirtualFile dir) {
DirectoryInfo info = getInfoForFile(dir);
return info.isInProject() ? info : null;
}
@NotNull
@Override
public DirectoryInfo getInfoForFile(@NotNull VirtualFile file) {
checkAvailability();
dispatchPendingEvents();
if (!(file instanceof NewVirtualFile)) return NonProjectDirectoryInfo.NOT_SUPPORTED_VIRTUAL_FILE_IMPLEMENTATION;
return getRootIndex().getInfoForFile(file);
}
@Override
@Nullable
public JpsModuleSourceRootType<?> getSourceRootType(@NotNull DirectoryInfo info) {
if (info.isInModuleSource()) {
return getRootIndex().getSourceRootType(info);
}
return null;
}
@Override
public String getPackageName(@NotNull VirtualFile dir) {
checkAvailability();
if (!(dir instanceof NewVirtualFile)) return null;
return getRootIndex().getPackageName(dir);
}
@NotNull
@Override
public OrderEntry[] getOrderEntries(@NotNull DirectoryInfo info) {
checkAvailability();
return getRootIndex().getOrderEntries(info);
}
@TestOnly
void assertConsistency(DirectoryInfo info) {
OrderEntry[] entries = getOrderEntries(info);
for (int i = 1; i < entries.length; i++) {
assert RootIndex.BY_OWNER_MODULE.compare(entries[i - 1], entries[i]) <= 0;
}
}
private void checkAvailability() {
if (myDisposed) {
ProgressManager.checkCanceled();
LOG.error("Directory index is already disposed for " + myProject);
}
}
@NotNull
private static OrderEntry createFakeOrderEntry(@NotNull final Module ownerModule) {
return new OrderEntry() {
@NotNull
@Override
public VirtualFile[] getFiles(OrderRootType type) {
throw new IncorrectOperationException();
}
@NotNull
@Override
public String[] getUrls(OrderRootType rootType) {
throw new IncorrectOperationException();
}
@NotNull
@Override
public String getPresentableName() {
throw new IncorrectOperationException();
}
@Override
public boolean isValid() {
throw new IncorrectOperationException();
}
@NotNull
@Override
public Module getOwnerModule() {
return ownerModule;
}
@Override
public <R> R accept(RootPolicy<R> policy, @Nullable R initialValue) {
throw new IncorrectOperationException();
}
@Override
public int compareTo(@NotNull OrderEntry o) {
throw new IncorrectOperationException();
}
@Override
public boolean isSynthetic() {
throw new IncorrectOperationException();
}
};
}
@Override
@Nullable
OrderEntry findOrderEntryWithOwnerModule(@NotNull DirectoryInfo info, @NotNull Module ownerModule) {
OrderEntry[] entries = getOrderEntries(info);
if (entries.length < 10) {
for (OrderEntry entry : entries) {
if (entry.getOwnerModule() == ownerModule) return entry;
}
return null;
}
int index = Arrays.binarySearch(entries, createFakeOrderEntry(ownerModule), RootIndex.BY_OWNER_MODULE);
return index < 0 ? null : entries[index];
}
@Override
@NotNull
List<OrderEntry> findAllOrderEntriesWithOwnerModule(@NotNull DirectoryInfo info, @NotNull Module ownerModule) {
OrderEntry[] entries = getOrderEntries(info);
if (entries.length == 0) return Collections.emptyList();
if (entries.length == 1) {
OrderEntry entry = entries[0];
return entry.getOwnerModule() == ownerModule ? Arrays.asList(entries) : Collections.<OrderEntry>emptyList();
}
int index = Arrays.binarySearch(entries, createFakeOrderEntry(ownerModule), RootIndex.BY_OWNER_MODULE);
if (index < 0) {
return Collections.emptyList();
}
int firstIndex = index;
while (firstIndex - 1 >= 0 && entries[firstIndex - 1].getOwnerModule() == ownerModule) {
firstIndex--;
}
int lastIndex = index + 1;
while (lastIndex < entries.length && entries[lastIndex].getOwnerModule() == ownerModule) {
lastIndex++;
}
OrderEntry[] subArray = new OrderEntry[lastIndex - firstIndex];
System.arraycopy(entries, firstIndex, subArray, 0, lastIndex - firstIndex);
return Arrays.asList(subArray);
}
}
|