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/*
* 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;
import com.intellij.injected.editor.VirtualFileWindow;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.FileViewProvider;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.PsiFile;
import com.intellij.psi.SingleRootFileViewProvider;
import com.intellij.psi.impl.file.impl.FileManager;
import com.intellij.util.containers.ConcurrentWeakValueHashMap;
import org.jetbrains.annotations.NotNull;
import java.util.Collections;
import java.util.List;
/**
* @author max
*/
class EmptyFileManager implements FileManager {
private final PsiManagerImpl myManager;
private final ConcurrentWeakValueHashMap<VirtualFile, FileViewProvider> myVFileToViewProviderMap = new ConcurrentWeakValueHashMap<VirtualFile, FileViewProvider>();
EmptyFileManager(final PsiManagerImpl manager) {
myManager = manager;
}
@Override
public void dispose() {
}
@Override
public PsiFile findFile(@NotNull VirtualFile vFile) {
return null;
}
@Override
public PsiDirectory findDirectory(@NotNull VirtualFile vFile) {
return null;
}
@Override
public void reloadFromDisk(@NotNull PsiFile file) {
}
@Override
public PsiFile getCachedPsiFile(@NotNull VirtualFile vFile) {
return null;
}
@Override
public void cleanupForNextTest() {
}
@Override
public FileViewProvider findViewProvider(@NotNull VirtualFile file) {
return myVFileToViewProviderMap.get(file);
}
@Override
public FileViewProvider findCachedViewProvider(@NotNull VirtualFile file) {
return myVFileToViewProviderMap.get(file);
}
@Override
@NotNull
public FileViewProvider createFileViewProvider(@NotNull final VirtualFile file, final boolean physical) {
return new SingleRootFileViewProvider(myManager, file, physical);
}
@Override
public void setViewProvider(@NotNull final VirtualFile virtualFile, final FileViewProvider singleRootFileViewProvider) {
if (!(virtualFile instanceof VirtualFileWindow)) {
if (singleRootFileViewProvider == null) {
myVFileToViewProviderMap.remove(virtualFile);
}
else {
myVFileToViewProviderMap.put(virtualFile, singleRootFileViewProvider);
}
}
}
@NotNull
@Override
public List<PsiFile> getAllCachedFiles() {
return Collections.emptyList();
}
}
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