/*
 * 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.vfs.local;

import com.intellij.openapi.vfs.DeprecatedVirtualFileSystem;
import com.intellij.openapi.vfs.StandardFileSystems;
import com.intellij.openapi.vfs.VirtualFile;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;

import java.io.File;
import java.io.IOException;

/**
 * @author yole
 */
public class CoreLocalFileSystem extends DeprecatedVirtualFileSystem {
  @NotNull
  @Override
  public String getProtocol() {
    return StandardFileSystems.FILE_PROTOCOL;
  }

  @Override
  public VirtualFile findFileByPath(@NotNull @NonNls String path) {
    File ioFile = new File(path);
    if (ioFile.exists()) {
      return new CoreLocalVirtualFile(this, ioFile);
    }
    return null;
  }

  @Override
  public void refresh(boolean asynchronous) {
  }

  @Override
  public VirtualFile refreshAndFindFileByPath(@NotNull String path) {
    return findFileByPath(path);
  }

  @Override
  protected void deleteFile(Object requestor, @NotNull VirtualFile vFile) throws IOException {
    throw new UnsupportedOperationException("deleteFile() not supported");
  }

  @Override
  protected void moveFile(Object requestor, @NotNull VirtualFile vFile, @NotNull VirtualFile newParent) throws IOException {
    throw new UnsupportedOperationException("move() not supported");
  }

  @Override
  protected void renameFile(Object requestor, @NotNull VirtualFile vFile, @NotNull String newName) throws IOException {
    throw new UnsupportedOperationException("renameFile() not supported");
  }

  @Override
  protected VirtualFile createChildFile(Object requestor, @NotNull VirtualFile vDir, @NotNull String fileName) throws IOException {
    throw new UnsupportedOperationException("createChildFile() not supported");
  }

  @NotNull
  @Override
  protected VirtualFile createChildDirectory(Object requestor, @NotNull VirtualFile vDir, @NotNull String dirName) throws IOException {
    throw new UnsupportedOperationException("createChildDirectory() not supported");
  }

  @Override
  protected VirtualFile copyFile(Object requestor,
                                 @NotNull VirtualFile virtualFile,
                                 @NotNull VirtualFile newParent,
                                 @NotNull String copyName) throws IOException {
    throw new UnsupportedOperationException("copyFile() not supported");
  }

  @Override
  public boolean isReadOnly() {
    return true;
  }
}

@@ -876,16 +876,59 @@
 NotNull;
+%0Aimport org.jetbrains.annotations.Nullable;
 %0A%0Aimport
@@ -1167,39 +1167,39 @@
 OTOCOL;%0A  %7D%0A%0A  @
-Overrid
+Nullabl
 e%0A  public Virtu
@@ -1207,36 +1207,38 @@
 lFile findFileBy
-Path
+IoFile
 (@NotNull @NonNl
@@ -1235,166 +1235,227 @@
 ull 
-@NonNls String path) %7B%0A    File ioFile = new File(path);%0A    if (ioFile.exists()) %7B%0A      return new CoreLocalVirtualFile(this, ioFile);%0A    %7D%0A    return null
+File ioFile) %7B%0A    return ioFile.exists() ? new CoreLocalVirtualFile(this, ioFile) : null;%0A  %7D%0A%0A  @Override%0A  public VirtualFile findFileByPath(@NotNull @NonNls String path) %7B%0A    return findFileByIoFile(new File(path))
 ;%0A  

add CoreLocalFileSystem.findFileByIoFile