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
|
/*
* 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.psi.impl.cache.impl.id;
import com.intellij.lang.cacheBuilder.CacheBuilderRegistry;
import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.fileTypes.LanguageFileType;
import com.intellij.openapi.fileTypes.impl.CustomSyntaxTableFileType;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.search.UsageSearchContext;
import com.intellij.util.SystemProperties;
import com.intellij.util.indexing.*;
import com.intellij.util.io.DataExternalizer;
import com.intellij.util.io.InlineKeyDescriptor;
import com.intellij.util.io.KeyDescriptor;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
/**
* @author Eugene Zhuravlev
* Date: Jan 16, 2008
*/
public class IdIndex extends FileBasedIndexExtension<IdIndexEntry, Integer> {
@NonNls public static final ID<IdIndexEntry, Integer> NAME = ID.create("IdIndex");
private final FileBasedIndex.InputFilter myInputFilter = new FileBasedIndex.InputFilter() {
@Override
public boolean acceptInput(@NotNull final VirtualFile file) {
return isIndexable(file.getFileType());
}
};
public static final boolean ourSnapshotMappingsEnabled = SystemProperties.getBooleanProperty("idea.index.snapshot.mappings.enabled", true);
private final DataExternalizer<Integer> myValueExternalizer = new DataExternalizer<Integer>() {
@Override
public void save(@NotNull final DataOutput out, final Integer value) throws IOException {
out.write(value.intValue() & UsageSearchContext.ANY);
}
@Override
public Integer read(@NotNull final DataInput in) throws IOException {
return Integer.valueOf(in.readByte() & UsageSearchContext.ANY);
}
};
private final KeyDescriptor<IdIndexEntry> myKeyDescriptor = new InlineKeyDescriptor<IdIndexEntry>() {
@Override
public IdIndexEntry fromInt(int n) {
return new IdIndexEntry(n);
}
@Override
public int toInt(IdIndexEntry idIndexEntry) {
return idIndexEntry.getWordHashCode();
}
};
private final DataIndexer<IdIndexEntry, Integer, FileContent> myIndexer = new DataIndexer<IdIndexEntry, Integer, FileContent>() {
@Override
@NotNull
public Map<IdIndexEntry, Integer> map(@NotNull final FileContent inputData) {
final FileTypeIdIndexer indexer = IdTableBuilding.getFileTypeIndexer(inputData.getFileType());
if (indexer != null) {
return indexer.map(inputData);
}
return Collections.emptyMap();
}
};
@Override
public int getVersion() {
return 12 + (ourSnapshotMappingsEnabled ? 0xFF:0); // TODO: version should enumerate all word scanner versions and build version upon that set
}
@Override
public boolean dependsOnFileContent() {
return true;
}
@NotNull
@Override
public ID<IdIndexEntry,Integer> getName() {
return NAME;
}
@NotNull
@Override
public DataIndexer<IdIndexEntry, Integer, FileContent> getIndexer() {
return myIndexer;
}
@NotNull
@Override
public DataExternalizer<Integer> getValueExternalizer() {
return myValueExternalizer;
}
@NotNull
@Override
public KeyDescriptor<IdIndexEntry> getKeyDescriptor() {
return myKeyDescriptor;
}
@NotNull
@Override
public FileBasedIndex.InputFilter getInputFilter() {
return myInputFilter;
}
public static boolean isIndexable(FileType fileType) {
return fileType instanceof LanguageFileType ||
fileType instanceof CustomSyntaxTableFileType ||
IdTableBuilding.isIdIndexerRegistered(fileType) ||
CacheBuilderRegistry.getInstance().getCacheBuilder(fileType) != null;
}
@Override
public boolean hasSnapshotMapping() {
return true;
}
}
|
