blob: f685d88e76b256d7d62d3126af78cac92fd06dab (
plain)
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
|
/*
* 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.openapi.roots.impl.libraries;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.roots.OrderRootType;
import com.intellij.openapi.roots.impl.RootProviderBaseImpl;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.vfs.LocalFileSystem;
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.events.*;
import com.intellij.util.messages.MessageBusConnection;
import org.jetbrains.annotations.NotNull;
import java.util.*;
/**
* @author ksafonov
*/
public class JarDirectoryWatcherImpl implements JarDirectoryWatcher {
private final JarDirectories myJarDirectories;
private final RootProviderBaseImpl myRootProvider;
private MessageBusConnection myBusConnection = null;
private Collection<LocalFileSystem.WatchRequest> myWatchRequests = Collections.emptySet();
public JarDirectoryWatcherImpl(JarDirectories jarDirectories, RootProviderBaseImpl rootProvider) {
myJarDirectories = jarDirectories;
myRootProvider = rootProvider;
}
@Override
public void updateWatchedRoots() {
final LocalFileSystem fs = LocalFileSystem.getInstance();
if (!myJarDirectories.isEmpty()) {
final Set<String> recursiveRoots = new HashSet<String>();
final Set<String> flatRoots = new HashSet<String>();
final VirtualFileManager fm = VirtualFileManager.getInstance();
for (OrderRootType rootType : myJarDirectories.getRootTypes()) {
for (String url : myJarDirectories.getDirectories(rootType)) {
if (fm.getFileSystem(VirtualFileManager.extractProtocol(url)) instanceof LocalFileSystem) {
final boolean watchRecursively = myJarDirectories.isRecursive(rootType, url);
final String path = VirtualFileManager.extractPath(url);
(watchRecursively ? recursiveRoots : flatRoots).add(path);
}
}
}
myWatchRequests = fs.replaceWatchedRoots(myWatchRequests, recursiveRoots, flatRoots);
if (myBusConnection == null) {
myBusConnection = ApplicationManager.getApplication().getMessageBus().connect();
myBusConnection.subscribe(VirtualFileManager.VFS_CHANGES, new BulkFileListener.Adapter() {
@Override
public void after(@NotNull final List<? extends VFileEvent> events) {
boolean changesDetected = false;
for (VFileEvent event : events) {
if (event instanceof VFileCopyEvent) {
final VFileCopyEvent copyEvent = (VFileCopyEvent)event;
final VirtualFile file = copyEvent.getFile();
if (isUnderJarDirectory(copyEvent.getNewParent() + "/" + copyEvent.getNewChildName()) ||
file != null && isUnderJarDirectory(file.getUrl())) {
changesDetected = true;
break;
}
}
else if (event instanceof VFileMoveEvent) {
final VFileMoveEvent moveEvent = (VFileMoveEvent)event;
final VirtualFile file = moveEvent.getFile();
if (file != null &&
(isUnderJarDirectory(file.getUrl()) || isUnderJarDirectory(moveEvent.getOldParent().getUrl() + "/" + file.getName()))) {
changesDetected = true;
break;
}
}
else if (event instanceof VFileDeleteEvent) {
final VFileDeleteEvent deleteEvent = (VFileDeleteEvent)event;
if (isUnderJarDirectory(deleteEvent.getFile().getUrl())) {
changesDetected = true;
break;
}
}
else if (event instanceof VFileCreateEvent) {
final VFileCreateEvent createEvent = (VFileCreateEvent)event;
if (isUnderJarDirectory(createEvent.getParent().getUrl() + "/" + createEvent.getChildName())) {
changesDetected = true;
break;
}
}
}
if (changesDetected) {
fireRootSetChanged();
}
}
private boolean isUnderJarDirectory(String url) {
for (String rootUrl : myJarDirectories.getAllDirectories()) {
if (FileUtil.startsWith(url, rootUrl)) {
return true;
}
}
return false;
}
});
}
}
else {
cleanup();
}
}
protected void fireRootSetChanged() {
myRootProvider.fireRootSetChanged();
}
@Override
public void dispose() {
cleanup();
}
private void cleanup() {
if (!myWatchRequests.isEmpty()) {
LocalFileSystem.getInstance().removeWatchedRoots(myWatchRequests);
myWatchRequests = Collections.emptySet();
}
final MessageBusConnection connection = myBusConnection;
if (connection != null) {
myBusConnection = null;
connection.disconnect();
}
}
}
|
