/*
* Copyright 2003-2017 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 jetbrains.mps.workbench.languagesFs;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.components.ApplicationComponent;
import com.intellij.openapi.vfs.DeprecatedVirtualFileSystem;
import com.intellij.openapi.vfs.VirtualFile;
import jetbrains.mps.smodel.Language;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.module.SModuleReference;
import org.jetbrains.mps.openapi.persistence.PersistenceFacade;
import java.io.IOException;
import java.util.WeakHashMap;
public class MPSLanguagesVirtualFileSystem extends DeprecatedVirtualFileSystem implements ApplicationComponent {
public static MPSLanguagesVirtualFileSystem getInstance() {
return ApplicationManager.getApplication().getComponent(MPSLanguagesVirtualFileSystem.class);
}
private WeakHashMap<SModuleReference, MPSLanguageVirtualFile> myVirtualFiles = new WeakHashMap<>();
public MPSLanguageVirtualFile getFileFor(@NotNull final Language language) {
return getFileFor(language.getModuleReference());
}
public MPSLanguageVirtualFile getFileFor(@NotNull final SModuleReference language) {
MPSLanguageVirtualFile vf = myVirtualFiles.get(language);
if (vf != null) {
return vf;
}
myVirtualFiles.put(language, vf = new MPSLanguageVirtualFile(language));
return vf;
}
@Override
@NonNls
@NotNull
public String getComponentName() {
return "MPS Languages File System";
}
@Override
public void initComponent() {
}
@Override
public void disposeComponent() {
}
@Override
@NonNls
public String getProtocol() {
return "mpslang";
}
@Override
@Nullable
public VirtualFile findFileByPath(final @NotNull @NonNls String path) {
return getFileFor(PersistenceFacade.getInstance().createModuleReference(path));
}
@Override
public void refresh(boolean asynchronous) {
}
@Override
@Nullable
public VirtualFile refreshAndFindFileByPath(String path) {
return null;
}
@Override
protected void deleteFile(Object requestor, VirtualFile vFile) throws IOException {
throw new UnsupportedOperationException();
}
@Override
protected void moveFile(Object requestor, VirtualFile vFile, VirtualFile newParent) throws IOException {
throw new UnsupportedOperationException();
}
@Override
protected void renameFile(Object requestor, VirtualFile vFile, String newName) throws IOException {
throw new UnsupportedOperationException();
}
@Override
public VirtualFile createChildFile(Object requestor, VirtualFile vDir, String fileName) throws IOException {
throw new UnsupportedOperationException();
}
@Override
public VirtualFile createChildDirectory(Object requestor, VirtualFile vDir, String dirName) throws IOException {
throw new UnsupportedOperationException();
}
@Override
public VirtualFile copyFile(Object requestor, VirtualFile virtualFile, VirtualFile newParent, String copyName) throws IOException {
throw new UnsupportedOperationException();
}
}