/*
* Copyright 2002-2005 The Apache Software Foundation.
*
* 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.apache.commons.vfs.provider.local;
import org.apache.commons.vfs.FileName;
import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.FileSelector;
import org.apache.commons.vfs.FileSystem;
import org.apache.commons.vfs.FileSystemException;
import org.apache.commons.vfs.FileSystemOptions;
import org.apache.commons.vfs.provider.AbstractFileSystem;
import java.io.File;
import java.io.FilePermission;
import java.util.Collection;
/**
* A local file system.
*
* @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
*/
public class LocalFileSystem
extends AbstractFileSystem
implements FileSystem
{
private final String rootFile;
public LocalFileSystem(final FileName rootName,
final String rootFile,
final FileSystemOptions opts)
{
super(rootName, null, opts);
this.rootFile = rootFile;
}
/**
* Creates a file object.
*/
protected FileObject createFile(final FileName name) throws FileSystemException
{
// Create the file
String fileName = rootFile + name.getPath();
return new LocalFile(this, fileName, name);
}
/**
* Returns the capabilities of this file system.
*/
protected void addCapabilities(final Collection caps)
{
caps.addAll(DefaultLocalFileProvider.capabilities);
}
/**
* Creates a temporary local copy of a file and its descendents.
*/
protected File doReplicateFile(final FileObject fileObject,
final FileSelector selector)
throws Exception
{
final LocalFile localFile = (LocalFile) fileObject;
final File file = localFile.getLocalFile();
final SecurityManager sm = System.getSecurityManager();
if (sm != null)
{
final FilePermission requiredPerm = new FilePermission(file.getAbsolutePath(), "read");
sm.checkPermission(requiredPerm);
}
return file;
}
}