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
018package org.apache.commons.net.ftp.parser;
019
020import java.text.ParseException;
021
022import org.apache.commons.net.ftp.FTPClientConfig;
023import org.apache.commons.net.ftp.FTPFile;
024
025/**
026 * @version $Id: OS400FTPEntryParser.java 1081476 2011-03-14 17:09:59Z sebb $
027 */
028
029public 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}