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
|
/*
* Copyright 2000-2010 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 git4idea.history;
import com.intellij.lifecycle.PeriodicalTasksCloser;
import com.intellij.openapi.application.PathManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vcs.persistent.SmallMapSerializer;
import com.intellij.util.io.DataExternalizer;
import com.intellij.util.io.EnumeratorStringDescriptor;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.File;
import java.io.IOException;
import java.util.*;
/**
* @author irengrig
*/
public class NewGitUsersComponent {
private final Object myLock = new Object();
private SmallMapSerializer<String, List<String>> myState;
private final File myFile;
public NewGitUsersComponent(final Project project) {
final File vcsFile = new File(PathManager.getSystemPath(), "vcs");
File file = new File(vcsFile, "git_users_new");
file.mkdirs();
myFile = new File(file, project.getLocationHash());
}
public static NewGitUsersComponent getInstance(final Project project) {
return PeriodicalTasksCloser.getInstance().safeGetService(project, NewGitUsersComponent.class);
}
@Nullable
public List<String> get() {
synchronized (myLock) {
final List<String> data = myState.get("");
return data == null ? null : Collections.unmodifiableList(data);
}
}
public void acceptUpdate(@NotNull final Collection<String> data) {
synchronized (myLock) {
if (myState == null) return;
final List<String> wasData = myState.get("");
if (wasData == null || (! wasData.equals(data))) {
final HashSet<String> set = new HashSet<String>(data);
if (wasData != null) {
set.addAll(wasData);
}
final List<String> list = new ArrayList<String>(set);
Collections.sort(list);
myState.put("", list);
myState.force();
}
}
}
public void activate() {
myState = new SmallMapSerializer<String, List<String>>(myFile, new EnumeratorStringDescriptor(), createExternalizer());
}
public void deactivate() {
synchronized (myLock) {
myState.force();
myState = null;
}
}
private static DataExternalizer<List<String>> createExternalizer() {
return new MyDataExternalizer();
}
private static class MyDataExternalizer implements DataExternalizer<List<String>> {
@Override
public List<String> read(DataInput in) throws IOException {
final int size = in.readInt();
final ArrayList<String> result = new ArrayList<String>(size);
for (int i = 0; i < size; i++) {
result.add(in.readUTF());
}
return result;
}
@Override
public void save(DataOutput out, List<String> value) throws IOException {
out.writeInt(value.size());
for (String s : value) {
out.writeUTF(s);
}
}
}
}
|
