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/*
* 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.ModuleRootAdapter;
import com.intellij.openapi.roots.ModuleRootEvent;
import com.intellij.openapi.roots.ModuleRootManager;
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.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.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;
}
});
}
private 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;
}
}
});
}
private 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();
}
}
}
}
private 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, 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());
}
});
}
return rootIndex;
}
@Override
@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);
}
private void checkAvailability() {
if (myDisposed) {
ProgressManager.checkCanceled();
LOG.error("Directory index is already disposed for " + myProject);
}
}
}
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