/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.fs.ftpfs;
import com.enterprisedt.net.ftp.FTPClient;
import com.enterprisedt.net.ftp.FTPException;
import com.enterprisedt.net.ftp.FTPFile;
import java.io.IOException;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.text.ParseException;
import java.util.Date;
import org.jnode.driver.Device;
import org.jnode.driver.DeviceListener;
import org.jnode.fs.FileSystem;
/**
* @author Levente S\u00e1ntha
*/
public class FTPFileSystem implements FileSystem<FTPFSDirectory> {
private FTPFSDevice device;
private FTPFSDirectory root;
private boolean closed;
private Thread thread;
private final FTPClient client;
private final FTPFileSystemType type;
FTPFileSystem(final FTPFSDevice device, final FTPFileSystemType type) {
this.type = type;
this.client = AccessController.doPrivileged(new PrivilegedAction<FTPClient>() {
@Override
public FTPClient run() {
return new FTPClient();
}
});
this.device = device;
device.addListener(new DeviceListener() {
public void deviceStarted(Device device) {
// empty
}
public void deviceStop(Device device) {
try {
close();
} catch (IOException x) {
// FIXME - bad ... use a logger.
x.printStackTrace();
}
}
});
try {
client.setRemoteHost(device.getHost());
client.setTimeout(300000);
AccessController.doPrivileged(new PrivilegedAction<Object>() {
public Object run() {
try {
client.connect();
return null;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
});
client.login(device.getUser(), device.getPassword());
thread = new Thread(new Runnable() {
public void run() {
try {
while (!isClosed()) {
try {
Thread.sleep(100000);
nop();
} catch (InterruptedException x) {
// ignore
}
}
} catch (Exception x) {
x.printStackTrace();
}
}
}, "ftpfs_keepalive");
thread.start();
FTPFile f = new FTPFile("/", "/", 0, true, new Date(0));
// FTPFile f = new FTPFile();
// f.setName(printWorkingDirectory());
root = new FTPFSDirectory(this, f);
closed = false;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public final FTPFileSystemType getType() {
return type;
}
private synchronized void nop() throws Exception {
client.dir(root.path());
}
/**
* Close this filesystem. After a close, all invocations of method of this filesystem or objects created by this
* filesystem will throw an IOException.
*
* @throws java.io.IOException
*/
public synchronized void close() throws IOException {
try {
closed = true;
thread = null;
client.quit();
} catch (Exception e) {
throw new IOException("Close error");
}
}
/**
* Gets the device this FS driver operates on.
*/
public FTPFSDevice getDevice() {
return device;
}
/**
* Gets the root entry of this filesystem. This is usually a directory, but this is not required.
*/
public FTPFSDirectory getRootEntry() throws IOException {
return root;
}
/**
* Is this filesystem closed.
*/
public synchronized boolean isClosed() {
return closed;
}
/**
* Is the filesystem mounted in readonly mode ?
*/
public boolean isReadOnly() {
return true;
}
public long getFreeSpace() {
// TODO implement me
return -1;
}
public long getTotalSpace() {
// TODO implement me
return -1;
}
public long getUsableSpace() {
// TODO implement me
return -1;
}
@Override
public String getVolumeName() throws IOException {
return "ftp://" + device.getHost();
}
FTPFile[] dirDetails(String path) throws IOException, FTPException, ParseException {
return client.dirDetails(path);
}
void chdir(String path) throws IOException, FTPException {
client.chdir(path);
}
byte[] get(String name) throws IOException, FTPException {
return client.get(name);
}
}