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Commons Net example source code file (

This example Commons Net source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Net tags/keywords

default_date_format, default_recent_date_format, default_recent_date_format, directory/file, filename, ftpfile, ftpfile, mmm, netwareftpentryparser, netwareftpentryparser, override, should, string, string, text

The Commons Net source code

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.


import java.text.ParseException;


 * Implementation of FTPFileEntryParser and FTPFileListParser for Netware Systems. Note that some of the proprietary
 * extensions for Novell-specific operations are not supported. See
 * <a href="">
 * for more details.
 * @author <a href="">Rory Winston
 * @see FTPFileEntryParser (for usage instructions)
 * @version $Id: 1081476 2011-03-14 17:09:59Z sebb $
 * @since 1.5
public class NetwareFTPEntryParser extends ConfigurableFTPFileEntryParserImpl {

     * Default date format is e.g. Feb 22 2006
    private static final String DEFAULT_DATE_FORMAT = "MMM dd yyyy";

     * Default recent date format is e.g. Feb 22 17:32
    private static final String DEFAULT_RECENT_DATE_FORMAT = "MMM dd HH:mm";

     * this is the regular expression used by this parser.
     * Example: d [-W---F--] SCION_VOL2                        512 Apr 13 23:12 VOL2
    private static final String REGEX = "(d|-){1}\\s+"      // Directory/file flag
            + "\\[(.*)\\]\\s+"                              // Attributes
            + "(\\S+)\\s+" + "(\\d+)\\s+"                   // Owner and size
            + "(\\S+\\s+\\S+\\s+((\\d+:\\d+)|(\\d{4})))"    // Long/short date format
            + "\\s+(.*)";                                   // Filename (incl. spaces)

     * The default constructor for a NetwareFTPEntryParser object.
     * @exception IllegalArgumentException
     * Thrown if the regular expression is unparseable.  Should not be seen
     * under normal conditions.  It it is seen, this is a sign that
     * <code>REGEX is  not a valid regular expression.
    public NetwareFTPEntryParser() {

     * This constructor allows the creation of an NetwareFTPEntryParser object
     * with something other than the default configuration.
     * @param config The {@link FTPClientConfig configuration} object used to
     * configure this parser.
     * @exception IllegalArgumentException
     * Thrown if the regular expression is unparseable.  Should not be seen
     * under normal conditions.  It it is seen, this is a sign that
     * <code>REGEX is  not a valid regular expression.
     * @since 1.4
    public NetwareFTPEntryParser(FTPClientConfig config) {

     * Parses a line of an NetwareFTP server file listing and converts it into a
     * usable format in the form of an <code> FTPFile  instance.  If the
     * file listing line doesn't describe a file, <code> null  is
     * returned, otherwise a <code> FTPFile  instance representing the
     * files in the directory is returned.
     * <p>
     * <p>
     * Netware file permissions are in the following format:  RWCEAFMS, and are explained as follows:
     * <ul>
     * <li>S - Supervisor; All rights.
     * <li>R - Read; Right to open and read or execute.
     * <li>W - Write; Right to open and modify.
     * <li>C - Create; Right to create; when assigned to a file, allows a deleted file to be recovered.
     * <li>E - Erase; Right to delete.
     * <li>M - Modify; Right to rename a file and to change attributes.
     * <li>F - File Scan; Right to see directory or file listings.
     * <li>A - Access Control; Right to modify trustee assignments and the Inherited Rights Mask.
     * </ul>
     * See <a href="">here
     * for more details
     * @param entry A line of text from the file listing
     * @return An FTPFile instance corresponding to the supplied entry
    public FTPFile parseFTPEntry(String entry) {

        FTPFile f = new FTPFile();
        if (matches(entry)) {
            String dirString = group(1);
            String attrib = group(2);
            String user = group(3);
            String size = group(4);
            String datestr = group(5);
            String name = group(9);

            try {
            } catch (ParseException e) {
                 // intentionally do nothing

            //is it a DIR or a file
            if (dirString.trim().equals("d")) {
            } else // Should be "-"


            //set the name

            //set the size

            // Now set the permissions (or at least a subset thereof - full permissions would probably require
            // subclassing FTPFile and adding extra metainformation there)
            if (attrib.indexOf("R") != -1) {
                f.setPermission(FTPFile.USER_ACCESS, FTPFile.READ_PERMISSION,
            if (attrib.indexOf("W") != -1) {
                f.setPermission(FTPFile.USER_ACCESS, FTPFile.WRITE_PERMISSION,

            return (f);
        return null;


     * Defines a default configuration to be used when this class is
     * instantiated without a {@link  FTPClientConfig  FTPClientConfig}
     * parameter being specified.
     * @return the default configuration for this parser.
    protected FTPClientConfig getDefaultConfiguration() {
        return new FTPClientConfig(FTPClientConfig.SYST_NETWARE,


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