org.openspice.vfs.ftp.FtpTools.java Source code

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Here is the source code for org.openspice.vfs.ftp.FtpTools.java

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/**
 *   JSpice, an Open Spice interpreter and library.
 *   Copyright (C) 2003, Stephen F. K. Leach
 *
 *    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 2 of the License, or
 *    (at your option) 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, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.openspice.vfs.ftp;

import org.openspice.alert.Alert;
import org.openspice.vfs.FixedConf;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPFile;

import java.io.IOException;

public abstract class FtpTools {

    public static final String folderName(final String path, final String name) {
        return path + name + FixedConf.VFOLDER_TERMINATOR;
    }

    public static final String fileName(final String path, final String name) {
        return path + name;
    }

    public static final String getName(final String path) {
        final int n = path.lastIndexOf(FixedConf.VFOLDER_TERMINATOR);
        if (n < 0) {
            return path;
        } else if (n == path.length() - 1) {
            final int k = path.lastIndexOf(FixedConf.VFOLDER_TERMINATOR, n - 1);
            if (k < 0) {
                return path.substring(0, n);
            } else {
                return path.substring(k + 1, n);
            }
        } else {
            return path.substring(n + 1);
        }
    }

    public static final String getParentPath(final String path) {
        final int n = path.indexOf(FixedConf.VFOLDER_TERMINATOR);
        if (n < 0) {
            return "";
        } else {
            return path.substring(0, n);
        }
    }

    public static final boolean folderExists(final FTPClient ftpc, final String path) {
        try {
            return ftpc.changeWorkingDirectory(path);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public static final boolean folderExists(final FtpVVolume fvol, final String path) {
        return folderExists(fvol.getConnectedFTPClient(), path);
    }

    public static final boolean fileExists(final FtpVVolume fvol, final String path) {
        return fileExists(fvol.getConnectedFTPClient(), path);
    }

    public static final boolean fileExists(final FTPClient ftpc, final String path) {
        boolean exists = false;
        try {
            final FTPFile[] files = ftpc.listFiles(path);
            if (files.length == 1) {
                exists = true;
            } else if (files.length > 1) {
                throw new Alert("Cannot determine this path is a file").culprit("path", path).mishap();
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return exists;
    }

}