org.pepstock.jem.node.resources.impl.ftp.FtpUtil.java Source code

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Here is the source code for org.pepstock.jem.node.resources.impl.ftp.FtpUtil.java

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/**
JEM, the BEE - Job Entry Manager, the Batch Execution Environment
Copyright (C) 2012-2015   Andrea "Stock" Stocchero
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.
    
This program 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 General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package org.pepstock.jem.node.resources.impl.ftp;

import java.io.IOException;

import org.apache.commons.net.ftp.FTPClient;
import org.pepstock.jem.log.LogAppl;

/**
 * Utility to act with FTP client
 * 
 * @author Andrea "Stock" Stocchero
 * @version 2.0
 */
public final class FtpUtil {

    /**
     * To avoid any instantiation
     */
    private FtpUtil() {
    }

    /**
     * Close the FTP client connection
     * @param ftp ftp client instance
     * @throws IOException if any IO error occurs
     */
    public static void close(FTPClient ftp) throws IOException {
        try {
            // checks if connected
            if (ftp.isConnected()) {
                // close FTP connection
                ftp.logout();
            }
        } finally {
            if (ftp.isConnected()) {
                try {
                    ftp.disconnect();
                } catch (IOException e) {
                    // ignore
                    LogAppl.getInstance().ignore(e.getMessage(), e);
                }
            }
        }
    }

}