/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* 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.teiid.resource.adapter.ftp;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.security.CodeSigner;
import java.util.Arrays;
import java.util.List;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;
import org.jboss.vfs.VirtualFile;
import org.jboss.vfs.spi.FileSystem;
public class FtpFileSystem implements FileSystem {
private FTPClient client;
public FtpFileSystem(FTPClient ftpClient) {
this.client = ftpClient;
}
@Override
public File getFile(VirtualFile mountPoint, VirtualFile target) throws IOException {
throw new IOException();
}
@Override
public InputStream openInputStream(VirtualFile mountPoint, VirtualFile target) throws IOException {
return this.client.retrieveFileStream(target.getName());
}
@Override
public boolean isReadOnly() {
return false;
}
@Override
public boolean delete(VirtualFile mountPoint, VirtualFile target) {
try {
return this.client.deleteFile(target.getName());
} catch (IOException e) {
throw new FtpOperationException(e);
}
}
@Override
public long getSize(VirtualFile mountPoint, VirtualFile target) {
try {
FTPFile file = this.client.mlistFile(target.getName());
return file != null ? file.getSize() : -1;
} catch (IOException e) {
throw new FtpOperationException(e);
}
}
@Override
public long getLastModified(VirtualFile mountPoint, VirtualFile target) {
try {
FTPFile file = this.client.mdtmFile(target.getName());
return file != null ? file.getTimestamp().getTimeInMillis() : -1;
} catch (IOException e) {
throw new FtpOperationException(e);
}
}
@Override
public boolean exists(VirtualFile mountPoint, VirtualFile target) {
return isFile(mountPoint, target) || isDirectory(mountPoint, target);
}
@Override
public boolean isFile(VirtualFile mountPoint, VirtualFile target) {
InputStream in = null;
try {
in = this.openInputStream(mountPoint, target);
int returnCode = this.client.getReplyCode();
if (in == null || returnCode == 550){
return false;
}
return true;
} catch (IOException e) {
throw new FtpOperationException(e);
} finally {
if(null != in) {
try {
in.close();
this.client.completePendingCommand();
} catch (IOException e) {
throw new FtpOperationException(e);
}
}
}
}
@Override
public boolean isDirectory(VirtualFile mountPoint, VirtualFile target) {
try {
if(this.client.cwd(target.getPathName()) == 250) {
return true;
}
} catch (IOException e) {
throw new FtpOperationException(e);
}
return false;
}
@Override
public List<String> getDirectoryEntries(VirtualFile mountPoint, VirtualFile target) {
try {
return Arrays.asList(this.client.listNames(target.getPathName()));
} catch (IOException e) {
throw new FtpOperationException(e);
}
}
@Override
public CodeSigner[] getCodeSigners(VirtualFile mountPoint, VirtualFile target) {
return null;
}
@Override
public void close() throws IOException {
this.client.disconnect();
}
@Override
public File getMountSource() {
return null;
}
@Override
public URI getRootURI() throws URISyntaxException {
try {
return new URI("ftp", this.client.printWorkingDirectory() + "!/", null);
} catch (IOException e) {
throw new FtpOperationException(e);
}
}
private static class FtpOperationException extends RuntimeException {
private static final long serialVersionUID = 2112491370833353846L;
FtpOperationException(Throwable cause){
super(cause);
}
}
}