fr.cls.atoll.motu.library.misc.vfs.provider.gsiftp.GsiFtpClientFactory.java Source code

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Here is the source code for fr.cls.atoll.motu.library.misc.vfs.provider.gsiftp.GsiFtpClientFactory.java

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/* 
 * Motu, a high efficient, robust and Standard compliant Web Server for Geographic
 * Data Dissemination.
 *
 * http://cls-motu.sourceforge.net/
 *
 * (C) Copyright 2009-2010, by CLS (Collecte Localisation Satellites) - 
 * http://www.cls.fr - and  Contributors
 *
 *
 * 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.
 */
package fr.cls.atoll.motu.library.misc.vfs.provider.gsiftp;

import java.io.IOException;

import org.apache.commons.vfs2.FileSystemException;
import org.apache.commons.vfs2.FileSystemOptions;
import org.globus.ftp.GridFTPClient;

/**
 * Create a GridFtpClient instance.
 * 
 * (C) Copyright 2009-2010, by CLS (Collecte Localisation Satellites)
 * 
 * @version $Revision: 1.1 $ - $Date: 2009-03-18 12:18:22 $
 * @author <a href="mailto:dearith@cls.fr">Didier Earith</a>
 */
public class GsiFtpClientFactory {

    /** The host. */
    static String host;

    /** The port. */
    static int port;

    /**
     * Instantiates a new gsi ftp client factory.
     */
    private GsiFtpClientFactory() {
    }

    /**
     * Creates a new connection to the server.
     * 
     * @param hostname the hostname
     * @param portN the port n
     * @param username the username
     * @param password the password
     * @param fileSystemOptions the file system options
     * 
     * @return the grid ftp client
     * 
     * @throws FileSystemException the file system exception
     */
    public static GridFTPClient createConnection(String hostname, int portN, String username, String password,
            FileSystemOptions fileSystemOptions) throws FileSystemException {
        GsiFtpClientFactory.host = hostname;
        GsiFtpClientFactory.port = portN;

        try {
            if (password == null) {
                throw new Exception("Password cannot be null");
            }

            // Create a proxy cert (if missing)
            new ProxyTool().createProxy(password);

            final GridFTPClient client = new GridFTPClient(hostname, port);

            try {

                // Authenticate w/ user credentials defines in $HOME/.globus/cog.properties
                client.authenticate(null);

                // Set binary mode
                // if (!client.setFileType(FTP.BINARY_FILE_TYPE))
                // {
                // throw new FileSystemException("vfs.provider.ftp/set-binary.error", hostname);
                // }

                // Set dataTimeout value
                // Integer dataTimeout =
                // FtpFileSystemConfigBuilder.getInstance().getDataTimeout(fileSystemOptions);
                // if (dataTimeout != null)
                // {
                // client.setDataTimeout(dataTimeout.intValue());
                // }

                // Change to root by default
                // All file operations a relative to the filesystem-root
                // String root = getRoot().getName().getPath();

                // Boolean userDirIsRoot =
                // FtpFileSystemConfigBuilder.getInstance().getUserDirIsRoot(fileSystemOptions);
                // if (workingDirectory != null && (userDirIsRoot == null || !userDirIsRoot.booleanValue()))
                // {
                // if (!client.changeWorkingDirectory(workingDirectory))
                // {
                // throw new FileSystemException("vfs.provider.ftp/change-work-directory.error",
                // workingDirectory);
                // }
                // }
                //
                // Boolean passiveMode =
                // FtpFileSystemConfigBuilder.getInstance().getPassiveMode(fileSystemOptions);
                // if (passiveMode != null && passiveMode.booleanValue())
                // {
                // client.enterLocalPassiveMode();
                // }
            } catch (final IOException e) {
                if (client != null) { // .isConnected())
                    client.close();
                }
                throw e;
            }

            return client;
        } catch (final Exception exc) {
            throw new FileSystemException("vfs.provider.gsiftp/connect.error", new Object[] { hostname }, exc);
        }
    }
}