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org.apache.commons.net.ftp.parser.EnterpriseUnixFTPEntryParser	91%	100%

1		/*
2		* Copyright 2001-2005 The Apache Software Foundation
3		*
4		* Licensed under the Apache License, Version 2.0 (the "License");
5		* you may not use this file except in compliance with the License.
6		* You may obtain a copy of the License at
7		*
8		* http://www.apache.org/licenses/LICENSE-2.0
9		*
10		* Unless required by applicable law or agreed to in writing, software
11		* distributed under the License is distributed on an "AS IS" BASIS,
12		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		* See the License for the specific language governing permissions and
14		* limitations under the License.
15		*/
16		package org.apache.commons.net.ftp.parser;
17		import java.util.Calendar;
18
19		import org.apache.commons.net.ftp.FTPFile;
20
21		/**
22		* Parser for the Connect Enterprise Unix FTP Server From Sterling Commerce.
23		* Here is a sample of the sort of output line this parser processes:
24		* "-C--E-----FTP B QUA1I1 18128 41 Aug 12 13:56 QUADTEST"
25		* <P><B>
26		* Note: EnterpriseUnixFTPEntryParser can only be instantiated through the
27		* DefaultFTPParserFactory by classname. It will not be chosen
28		* by the autodetection scheme.
29		* </B>
30		* @version $Id: EnterpriseUnixFTPEntryParser.java 165675 2005-05-02 20:09:55Z rwinston $
31		* @author <a href="Winston.Ojeda@qg.com">Winston Ojeda</a>
32		* @see org.apache.commons.net.ftp.FTPFileEntryParser FTPFileEntryParser (for usage instructions)
33		* @see org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory
34		*/
35		public class EnterpriseUnixFTPEntryParser extends RegexFTPFileEntryParserImpl
36		{
37
38		/**
39		* months abbreviations looked for by this parser. Also used
40		* to determine <b>which</b> month has been matched by the parser.
41		*/
42		private static final String MONTHS =
43		"(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)";
44
45		/**
46		* this is the regular expression used by this parser.
47		*/
48		private static final String REGEX =
49		"(([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])"
50		+ "([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z]))"
51		+ "(\\S*)\\s*"
52		+ "(\\S+)\\s*"
53		+ "(\\S*)\\s*"
54		+ "(\\d*)\\s*"
55		+ "(\\d*)\\s*"
56		+ MONTHS
57		+ "\\s*"
58		+ "((?:[012]\\d*)|(?:3[01]))\\s*"
59		+ "((\\d\\d\\d\\d)|((?:[01]\\d)|(?:2[0123])):([012345]\\d))\\s"
60		+ "(\\S*)(\\s*.*)";
61
62		/**
63		* The sole constructor for a EnterpriseUnixFTPEntryParser object.
64		*
65		*/
66		public EnterpriseUnixFTPEntryParser()
67		{
68	10	super(REGEX);
69	10	}
70
71		/**
72		* Parses a line of a unix FTP server file listing and converts it into a
73		* usable format in the form of an <code> FTPFile </code> instance. If
74		* the file listing line doesn't describe a file, <code> null </code> is
75		* returned, otherwise a <code> FTPFile </code> instance representing the
76		* files in the directory is returned.
77		*
78		* @param entry A line of text from the file listing
79		* @return An FTPFile instance corresponding to the supplied entry
80		*/
81		public FTPFile parseFTPEntry(String entry)
82		{
83
84	50	FTPFile file = new FTPFile();
85	50	file.setRawListing(entry);
86
87	50	if (matches(entry))
88		{
89	6	String usr = group(14);
90	6	String grp = group(15);
91	6	String filesize = group(16);
92	6	String mo = group(17);
93	6	String da = group(18);
94	6	String yr = group(20);
95	6	String hr = group(21);
96	6	String min = group(22);
97	6	String name = group(23);
98
99	6	file.setType(FTPFile.FILE_TYPE);
100	6	file.setUser(usr);
101	6	file.setGroup(grp);
102		try
103		{
104	6	file.setSize(Long.parseLong(filesize));
105		}
106	0	catch (NumberFormatException e)
107		{
108		// intentionally do nothing
109	6	}
110
111	6	Calendar cal = Calendar.getInstance();
112	6	cal.set(Calendar.MILLISECOND, 0);
113	6	cal.set(Calendar.SECOND,
114		0);
115	6	cal.set(Calendar.MINUTE,
116		0);
117	6	cal.set(Calendar.HOUR_OF_DAY,
118		0);
119		try
120		{
121
122	6	int pos = MONTHS.indexOf(mo);
123	6	int month = pos / 4;
124	6	if (yr != null)
125		{
126		// it's a year
127	0	cal.set(Calendar.YEAR,
128		Integer.parseInt(yr));
129		}
130		else
131		{
132		// it must be hour/minute or we wouldn't have matched
133	6	int year = cal.get(Calendar.YEAR);
134
135		// if the month we're reading is greater than now, it must
136		// be last year
137	6	if (cal.get(Calendar.MONTH) < month)
138		{
139	6	year--;
140		}
141	6	cal.set(Calendar.YEAR,
142		year);
143	6	cal.set(Calendar.HOUR_OF_DAY,
144		Integer.parseInt(hr));
145	6	cal.set(Calendar.MINUTE,
146		Integer.parseInt(min));
147		}
148	6	cal.set(Calendar.MONTH,
149		month);
150	6	cal.set(Calendar.DATE,
151		Integer.parseInt(da));
152	6	file.setTimestamp(cal);
153		}
154	0	catch (NumberFormatException e)
155		{
156		// do nothing, date will be uninitialized
157	6	}
158	6	file.setName(name);
159
160	6	return file;
161		}
162	44	return null;
163		}
164		}

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