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/*
* Anarres C Preprocessor
* Copyright (c) 2007-2015, Shevek
*
* 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 org.anarres.cpp;
import java.io.File;
import java.io.IOException;
/**
* A virtual filesystem implementation using java.io in a virtual
* chroot.
*/
public class ChrootFileSystem implements VirtualFileSystem {
private File root;
public ChrootFileSystem(File root) {
this.root = root;
}
@Override
public VirtualFile getFile(String path) {
return new ChrootFile(path);
}
@Override
public VirtualFile getFile(String dir, String name) {
return new ChrootFile(dir, name);
}
private class ChrootFile extends File implements VirtualFile {
private File rfile;
public ChrootFile(String path) {
super(path);
}
public ChrootFile(String dir, String name) {
super(dir, name);
}
/* private */
public ChrootFile(File dir, String name) {
super(dir, name);
}
@Override
public ChrootFile getParentFile() {
return new ChrootFile(getParent());
}
@Override
public ChrootFile getChildFile(String name) {
return new ChrootFile(this, name);
}
@Override
public boolean isFile() {
File real = new File(root, getPath());
return real.isFile();
}
@Override
public Source getSource() throws IOException {
return new FileLexerSource(new File(root, getPath()),
getPath());
}
}
}
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