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
|
/*
* Copyright 2000-2012 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.psi.impl.file.impl;
import com.intellij.ProjectTopics;
import com.intellij.ide.highlighter.JavaClassFileType;
import com.intellij.openapi.Disposable;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.*;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.VirtualFileWithId;
import com.intellij.psi.*;
import com.intellij.psi.impl.PsiManagerEx;
import com.intellij.psi.impl.file.PsiPackageImpl;
import com.intellij.psi.impl.java.stubs.index.JavaFullClassNameIndex;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.util.PsiUtilCore;
import com.intellij.util.Query;
import com.intellij.util.containers.ConcurrentHashMap;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.jps.model.java.JavaModuleSourceRootTypes;
import java.util.*;
/**
* Author: dmitrylomov
*/
public class JavaFileManagerImpl implements JavaFileManager, Disposable {
private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.file.impl.JavaFileManagerImpl");
private final ConcurrentHashMap<GlobalSearchScope, PsiClass> myCachedObjectClassMap = new ConcurrentHashMap<GlobalSearchScope, PsiClass>();
private final PsiManagerEx myManager;
private volatile Set<String> myNontrivialPackagePrefixes = null;
private boolean myDisposed = false;
private final PackageIndex myPackageIndex;
public JavaFileManagerImpl(Project project) {
myManager = (PsiManagerEx)PsiManager.getInstance(project);
myPackageIndex = PackageIndex.getInstance(myManager.getProject());
project.getMessageBus().connect().subscribe(ProjectTopics.PROJECT_ROOTS, new ModuleRootAdapter() {
@Override
public void rootsChanged(final ModuleRootEvent event) {
myNontrivialPackagePrefixes = null;
}
});
myManager.registerRunnableToRunOnChange(new Runnable() {
@Override
public void run() {
myCachedObjectClassMap.clear();
}
});
}
@Override
public void dispose() {
myDisposed = true;
myCachedObjectClassMap.clear();
}
@Override
@Nullable
public PsiPackage findPackage(@NotNull String packageName) {
Query<VirtualFile> dirs = myPackageIndex.getDirsByPackageName(packageName, true);
if (dirs.findFirst() == null) return null;
return new PsiPackageImpl(myManager, packageName);
}
@Override
public PsiClass[] findClasses(@NotNull String qName, @NotNull final GlobalSearchScope scope) {
final Collection<PsiClass> classes = JavaFullClassNameIndex.getInstance().get(qName.hashCode(), myManager.getProject(), scope);
if (classes.isEmpty()) return PsiClass.EMPTY_ARRAY;
List<PsiClass> result = new ArrayList<PsiClass>(classes.size());
for (PsiClass aClass : classes) {
final String qualifiedName = aClass.getQualifiedName();
if (qualifiedName == null || !qualifiedName.equals(qName)) continue;
PsiUtilCore.ensureValid(aClass);
PsiFile file = aClass.getContainingFile();
if (file == null) {
throw new AssertionError("No file for class: " + aClass + " of " + aClass.getClass());
}
VirtualFile vFile = file.getVirtualFile();
if (!hasAcceptablePackage(vFile)) continue;
result.add(aClass);
}
int count = result.size();
if (count == 0) return PsiClass.EMPTY_ARRAY;
if (count == 1) return new PsiClass[] {result.get(0)};
ContainerUtil.quickSort(result, new Comparator<PsiClass>() {
@Override
public int compare(PsiClass o1, PsiClass o2) {
return scope.compare(o2.getContainingFile().getVirtualFile(), o1.getContainingFile().getVirtualFile());
}
});
return result.toArray(new PsiClass[count]);
}
@Override
@Nullable
public PsiClass findClass(@NotNull String qName, @NotNull GlobalSearchScope scope) {
LOG.assertTrue(!myDisposed);
if (CommonClassNames.JAVA_LANG_OBJECT.equals(qName)) { // optimization
PsiClass cached = myCachedObjectClassMap.get(scope);
if (cached == null) {
cached = findClassInIndex(qName, scope);
if (cached != null) {
cached = myCachedObjectClassMap.cacheOrGet(scope, cached);
}
}
return cached;
}
return findClassInIndex(qName, scope);
}
@Nullable
private PsiClass findClassInIndex(String qName, GlobalSearchScope scope) {
VirtualFile bestFile = null;
PsiClass bestClass = null;
final Collection<PsiClass> classes = JavaFullClassNameIndex.getInstance().get(qName.hashCode(), myManager.getProject(), scope);
for (PsiClass aClass : classes) {
PsiFile file = aClass.getContainingFile();
if (file == null) {
LOG.error("aClass=" + aClass + " of class " + aClass.getClass() + "; valid=" + aClass.isValid());
continue;
}
final boolean valid = aClass.isValid();
VirtualFile vFile = file.getVirtualFile();
if (!valid) {
LOG.error("Invalid class " + aClass + "; " +
file + (file.isValid() ? "" : " (invalid)") +
"; virtualFile:" + vFile +
(vFile != null && !vFile.isValid() ? " (invalid)" : "") +
"; id=" + (vFile == null ? 0 : ((VirtualFileWithId)vFile).getId()),
new PsiInvalidElementAccessException(aClass));
continue;
}
final String qualifiedName = aClass.getQualifiedName();
if (qualifiedName == null || !qualifiedName.equals(qName)) continue;
if (!hasAcceptablePackage(vFile)) continue;
if (bestFile == null || scope.compare(vFile, bestFile) > 0) {
bestFile = vFile;
bestClass = aClass;
}
}
return bestClass;
}
private boolean hasAcceptablePackage(final VirtualFile vFile) {
if (vFile.getFileType() == JavaClassFileType.INSTANCE) {
// See IDEADEV-5626
final VirtualFile root = ProjectRootManager.getInstance(myManager.getProject()).getFileIndex().getClassRootForFile(vFile);
VirtualFile parent = vFile.getParent();
final PsiNameHelper nameHelper = PsiNameHelper.getInstance(myManager.getProject());
while (parent != null && !Comparing.equal(parent, root)) {
if (!nameHelper.isIdentifier(parent.getName())) return false;
parent = parent.getParent();
}
}
return true;
}
@Override
public Collection<String> getNonTrivialPackagePrefixes() {
Set<String> names = myNontrivialPackagePrefixes;
if (names == null) {
names = new HashSet<String>();
final ProjectRootManager rootManager = ProjectRootManager.getInstance(myManager.getProject());
final List<VirtualFile> sourceRoots = rootManager.getModuleSourceRoots(JavaModuleSourceRootTypes.SOURCES);
final ProjectFileIndex fileIndex = rootManager.getFileIndex();
for (final VirtualFile sourceRoot : sourceRoots) {
final String packageName = fileIndex.getPackageNameByDirectory(sourceRoot);
if (packageName != null && !packageName.isEmpty()) {
names.add(packageName);
}
}
myNontrivialPackagePrefixes = names;
}
return names;
}
}
|
