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; 019import java.util.Calendar; 020 021import org.apache.commons.net.ftp.FTPFile; 022 023/** 024 * Parser for the Connect Enterprise Unix FTP Server From Sterling Commerce. 025 * Here is a sample of the sort of output line this parser processes: 026 * "-C--E-----FTP B QUA1I1 18128 41 Aug 12 13:56 QUADTEST" 027 * <P><B> 028 * Note: EnterpriseUnixFTPEntryParser can only be instantiated through the 029 * DefaultFTPParserFactory by classname. It will not be chosen 030 * by the autodetection scheme. 031 * </B> 032 * @version $Id: EnterpriseUnixFTPEntryParser.java 1489361 2013-06-04 09:48:36Z sebb $ 033 * @author <a href="Winston.Ojeda@qg.com">Winston Ojeda</a> 034 * @see org.apache.commons.net.ftp.FTPFileEntryParser FTPFileEntryParser (for usage instructions) 035 * @see org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory 036 */ 037public class EnterpriseUnixFTPEntryParser extends RegexFTPFileEntryParserImpl 038{ 039 040 /** 041 * months abbreviations looked for by this parser. Also used 042 * to determine <b>which</b> month has been matched by the parser. 043 */ 044 private static final String MONTHS = 045 "(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)"; 046 047 /** 048 * this is the regular expression used by this parser. 049 */ 050 private static final String REGEX = 051 "(([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])" 052 + "([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z]))" 053 + "(\\S*)\\s*" 054 + "(\\S+)\\s*" 055 + "(\\S*)\\s*" 056 + "(\\d*)\\s*" 057 + "(\\d*)\\s*" 058 + MONTHS 059 + "\\s*" 060 + "((?:[012]\\d*)|(?:3[01]))\\s*" 061 + "((\\d\\d\\d\\d)|((?:[01]\\d)|(?:2[0123])):([012345]\\d))\\s" 062 + "(\\S*)(\\s*.*)"; 063 064 /** 065 * The sole constructor for a EnterpriseUnixFTPEntryParser object. 066 * 067 */ 068 public EnterpriseUnixFTPEntryParser() 069 { 070 super(REGEX); 071 } 072 073 /** 074 * Parses a line of a unix FTP server file listing and converts it into a 075 * usable format in the form of an <code> FTPFile </code> instance. If 076 * the file listing line doesn't describe a file, <code> null </code> is 077 * returned, otherwise a <code> FTPFile </code> instance representing the 078 * files in the directory is returned. 079 * 080 * @param entry A line of text from the file listing 081 * @return An FTPFile instance corresponding to the supplied entry 082 */ 083// @Override 084 public FTPFile parseFTPEntry(String entry) 085 { 086 087 FTPFile file = new FTPFile(); 088 file.setRawListing(entry); 089 090 if (matches(entry)) 091 { 092 String usr = group(14); 093 String grp = group(15); 094 String filesize = group(16); 095 String mo = group(17); 096 String da = group(18); 097 String yr = group(20); 098 String hr = group(21); 099 String min = group(22); 100 String name = group(23); 101 102 file.setType(FTPFile.FILE_TYPE); 103 file.setUser(usr); 104 file.setGroup(grp); 105 try 106 { 107 file.setSize(Long.parseLong(filesize)); 108 } 109 catch (NumberFormatException e) 110 { 111 // intentionally do nothing 112 } 113 114 Calendar cal = Calendar.getInstance(); 115 cal.set(Calendar.MILLISECOND, 0); 116 cal.set(Calendar.SECOND, 117 0); 118 cal.set(Calendar.MINUTE, 119 0); 120 cal.set(Calendar.HOUR_OF_DAY, 121 0); 122 try 123 { 124 125 int pos = MONTHS.indexOf(mo); 126 int month = pos / 4; 127 if (yr != null) 128 { 129 // it's a year 130 cal.set(Calendar.YEAR, 131 Integer.parseInt(yr)); 132 } 133 else 134 { 135 // it must be hour/minute or we wouldn't have matched 136 int year = cal.get(Calendar.YEAR); 137 138 // if the month we're reading is greater than now, it must 139 // be last year 140 if (cal.get(Calendar.MONTH) < month) 141 { 142 year--; 143 } 144 cal.set(Calendar.YEAR, 145 year); 146 cal.set(Calendar.HOUR_OF_DAY, 147 Integer.parseInt(hr)); 148 cal.set(Calendar.MINUTE, 149 Integer.parseInt(min)); 150 } 151 cal.set(Calendar.MONTH, 152 month); 153 cal.set(Calendar.DATE, 154 Integer.parseInt(da)); 155 file.setTimestamp(cal); 156 } 157 catch (NumberFormatException e) 158 { 159 // do nothing, date will be uninitialized 160 } 161 file.setName(name); 162 163 return file; 164 } 165 return null; 166 } 167}