| /* |
| * 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.vcs.vfs; |
| |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.vfs.VfsUtilCore; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.VirtualFileSystem; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.io.*; |
| |
| public abstract class AbstractVcsVirtualFile extends VirtualFile { |
| |
| protected final String myName; |
| protected final String myPath; |
| protected String myRevision; |
| private final VirtualFile myParent; |
| protected int myModificationStamp = 0; |
| private final VirtualFileSystem myFileSystem; |
| protected boolean myProcessingBeforeContentsChange; |
| |
| protected AbstractVcsVirtualFile(String path, VirtualFileSystem fileSystem) { |
| myFileSystem = fileSystem; |
| myPath = path; |
| File file = new File(myPath); |
| myName = file.getName(); |
| if (!isDirectory()) |
| myParent = new VcsVirtualFolder(file.getParent(), this, myFileSystem); |
| else |
| myParent = null; |
| } |
| |
| @Override |
| @NotNull |
| public VirtualFileSystem getFileSystem() { |
| return myFileSystem; |
| } |
| |
| @Override |
| @NotNull |
| public String getPath() { |
| return myPath; |
| } |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return myName; |
| } |
| |
| @Override |
| public String getPresentableName() { |
| if (myRevision == null) |
| return myName; |
| else |
| return myName + " (" + myRevision + ")"; |
| } |
| |
| @Override |
| public boolean isWritable() { |
| return false; |
| } |
| |
| @Override |
| public boolean isValid() { |
| return true; |
| } |
| |
| @Override |
| public VirtualFile getParent() { |
| return myParent; |
| |
| } |
| |
| @Override |
| public VirtualFile[] getChildren() { |
| return null; |
| } |
| |
| @Override |
| public InputStream getInputStream() throws IOException { |
| return VfsUtilCore.byteStreamSkippingBOM(contentsToByteArray(), this); |
| } |
| |
| @Override |
| @NotNull |
| public OutputStream getOutputStream(Object requestor, long newModificationStamp, long newTimeStamp) throws IOException { |
| throw new RuntimeException(VcsFileSystem.COULD_NOT_IMPLEMENT_MESSAGE); |
| } |
| |
| @Override |
| @NotNull |
| public abstract byte[] contentsToByteArray() throws IOException; |
| |
| @Override |
| public long getModificationStamp() { |
| return myModificationStamp; |
| } |
| |
| @Override |
| public long getTimeStamp() { |
| return myModificationStamp; |
| } |
| |
| @Override |
| public long getLength() { |
| try { |
| return contentsToByteArray().length; |
| } catch (IOException e) { |
| return 0; |
| } |
| } |
| |
| @Override |
| public void refresh(boolean asynchronous, boolean recursive, Runnable postRunnable) { |
| if (postRunnable != null) |
| postRunnable.run(); |
| } |
| |
| protected void setRevision(String revision) { |
| myRevision = revision; |
| } |
| |
| protected void fireBeforeContentsChange() { |
| myProcessingBeforeContentsChange = true; |
| try { |
| ApplicationManager.getApplication().runWriteAction(new Runnable() { |
| @Override |
| public void run() { |
| ((VcsFileSystem)getFileSystem()).fireBeforeContentsChange(this, AbstractVcsVirtualFile.this); |
| } |
| }); |
| } |
| finally { |
| myProcessingBeforeContentsChange = false; |
| } |
| } |
| } |