/********************************************************************************
* Portions Copyright (C) 2000-2003 Enterprise Distributed Technologies Ltd
* Portions Copyright (c) 2002-2013 by Pentaho : http://www.pentaho.com
*
* This file is dual licensed under the terms of the Apache Software License
* Version 2.0, and the GNU Lesser GPL Version 2.1 as provided for by the
* edtFTPj project (http://www.enterprisedt.com/products/edtftpj/readme.html#Licensing).
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*******************************************************************************
*
* 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.pentaho.di.job.entries.ftpput;
import java.io.IOException;
import java.text.ParseException;
import org.pentaho.di.core.logging.LogChannelInterface;
import org.pentaho.di.i18n.BaseMessages;
import com.enterprisedt.net.ftp.FTPClient;
import com.enterprisedt.net.ftp.FTPException;
import com.enterprisedt.net.ftp.FTPFile;
/**
* This class should largely be able to be removed if the edtftp project accepts my change to replace dirDetails(".")
* with dirDetails(null).
*
* @author mbatchelor
*
*/
public class PDIFTPClient extends FTPClient {
/**
* MDTM supported flag
*/
private boolean mdtmSupported = true;
/**
* SIZE supported flag
*/
private boolean sizeSupported = true;
private static Class<?> PKG = PDIFTPClient.class; // for i18n purposes, needed by Translator2!!
private LogChannelInterface log;
public PDIFTPClient( LogChannelInterface log ) {
super();
this.log = log;
log.logBasic( BaseMessages.getString( PKG, "PDIFTPClient.DEBUG.Using.Overridden.FTPClient" ) );
}
/*
* (non-Javadoc)
*
* @see com.enterprisedt.net.ftp.FTPClientInterface#exists(java.lang.String)
*/
public boolean exists( String remoteFile ) throws IOException, FTPException {
checkConnection( true );
// first try the SIZE command
if ( sizeSupported ) {
lastReply = control.sendCommand( "SIZE " + remoteFile );
char ch = lastReply.getReplyCode().charAt( 0 );
if ( ch == '2' ) {
return true;
}
if ( ch == '5' && fileNotFoundStrings.matches( lastReply.getReplyText() ) ) {
return false;
}
sizeSupported = false;
log.logDebug( "SIZE not supported - trying MDTM" );
}
// then try the MDTM command
if ( mdtmSupported ) {
lastReply = control.sendCommand( "MDTM " + remoteFile );
char ch = lastReply.getReplyCode().charAt( 0 );
if ( ch == '2' ) {
return true;
}
if ( ch == '5' && fileNotFoundStrings.matches( lastReply.getReplyText() ) ) {
return false;
}
mdtmSupported = false;
log.logDebug( "MDTM not supported - trying LIST" );
}
try {
FTPFile[] files = dirDetails( null ); // My fix - replace "." with null in this call for MVS support
for ( int i = 0; i < files.length; i++ ) {
if ( files[i].getName().equals( remoteFile ) ) {
return files[i].isFile();
}
}
return false;
} catch ( ParseException ex ) {
log.logBasic( ex.getMessage() );
return false;
}
}
}