    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *      http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017
    018    package org.apache.commons.net.ftp.parser;
    019
    020    import java.text.ParseException;
    021
    022    import org.apache.commons.net.ftp.FTPClientConfig;
    023    import org.apache.commons.net.ftp.FTPFile;
    024
    025    /**
    026     * @version $Id: OS400FTPEntryParser.java 1081476 2011-03-14 17:09:59Z sebb $
    027     */
    028
    029    public class OS400FTPEntryParser extends ConfigurableFTPFileEntryParserImpl
    030    {
    031        private static final String DEFAULT_DATE_FORMAT
    032            = "yy/MM/dd HH:mm:ss"; //01/11/09 12:30:24
    033
    034
    035
    036        private static final String REGEX =
    037            "(\\S+)\\s+"                // user
    038            + "(\\d+)\\s+"              // size
    039            + "(\\S+)\\s+(\\S+)\\s+"    // date stuff
    040            + "(\\*\\S+)\\s+"               // *STMF/*DIR
    041            + "(\\S+/?)\\s*";               // filename
    042
    043
    044        /**
    045         * The default constructor for a OS400FTPEntryParser object.
    046         *
    047         * @exception IllegalArgumentException
    048         * Thrown if the regular expression is unparseable.  Should not be seen
    049         * under normal conditions.  It it is seen, this is a sign that
    050         * <code>REGEX</code> is  not a valid regular expression.
    051         */
    052        public OS400FTPEntryParser()
    053        {
    054            this(null);
    055        }
    056
    057        /**
    058         * This constructor allows the creation of an OS400FTPEntryParser object
    059         * with something other than the default configuration.
    060         *
    061         * @param config The {@link FTPClientConfig configuration} object used to
    062         * configure this parser.
    063         * @exception IllegalArgumentException
    064         * Thrown if the regular expression is unparseable.  Should not be seen
    065         * under normal conditions.  It it is seen, this is a sign that
    066         * <code>REGEX</code> is  not a valid regular expression.
    067         * @since 1.4
    068         */
    069        public OS400FTPEntryParser(FTPClientConfig config)
    070        {
    071            super(REGEX);
    072            configure(config);
    073        }
    074
    075
    076        public FTPFile parseFTPEntry(String entry)
    077        {
    078
    079            FTPFile file = new FTPFile();
    080            file.setRawListing(entry);
    081            int type;
    082
    083            if (matches(entry))
    084            {
    085                String usr = group(1);
    086                String filesize = group(2);
    087                String datestr = group(3)+" "+group(4);
    088                String typeStr = group(5);
    089                String name = group(6);
    090
    091                try
    092                {
    093                    file.setTimestamp(super.parseTimestamp(datestr));
    094                }
    095                catch (ParseException e)
    096                {
    097                    // intentionally do nothing
    098                }
    099
    100
    101                if (typeStr.equalsIgnoreCase("*STMF"))
    102                {
    103                    type = FTPFile.FILE_TYPE;
    104                }
    105                else if (typeStr.equalsIgnoreCase("*DIR"))
    106                {
    107                    type = FTPFile.DIRECTORY_TYPE;
    108                }
    109                else
    110                {
    111                    type = FTPFile.UNKNOWN_TYPE;
    112                }
    113
    114                file.setType(type);
    115
    116                file.setUser(usr);
    117
    118                try
    119                {
    120                    file.setSize(Long.parseLong(filesize));
    121                }
    122                catch (NumberFormatException e)
    123                {
    124                    // intentionally do nothing
    125                }
    126
    127                if (name.endsWith("/"))
    128                {
    129                    name = name.substring(0, name.length() - 1);
    130                }
    131                int pos = name.lastIndexOf('/');
    132                if (pos > -1)
    133                {
    134                    name = name.substring(pos + 1);
    135                }
    136
    137                file.setName(name);
    138
    139                return file;
    140            }
    141            return null;
    142        }
    143
    144        /**
    145         * Defines a default configuration to be used when this class is
    146         * instantiated without a {@link  FTPClientConfig  FTPClientConfig}
    147         * parameter being specified.
    148         * @return the default configuration for this parser.
    149         */
    150        @Override
    151        protected FTPClientConfig getDefaultConfiguration() {
    152            return new FTPClientConfig(
    153                    FTPClientConfig.SYST_OS400,
    154                    DEFAULT_DATE_FORMAT,
    155                    null, null, null, null);
    156        }
    157
    158    }