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/*
 * Copyright 2001-2004 The Apache Software Foundation
 *
 * Licensed 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
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.commons.net.ftp.parser;
import java.util.Calendar;

import org.apache.commons.net.ftp.FTPFile;

/**
 * Parser for the Connect Enterprise Unix FTP Server From Sterling Commerce.
 * Here is a sample of the sort of output line this parser processes:
 *  "-C--E-----FTP B QUA1I1      18128       41 Aug 12 13:56 QUADTEST"
 * 

* Note: EnterpriseUnixFTPEntryParser can only be instantiated through the * DefaultFTPParserFactory by classname. It will not be chosen * by the autodetection scheme. * * @version $Id: EnterpriseUnixFTPEntryParser.java,v 1.11 2004/04/21 23:30:33 scohen Exp $ * @author Winston Ojeda * @see org.apache.commons.net.ftp.FTPFileEntryParser FTPFileEntryParser (for usage instructions) * @see org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory */ public class EnterpriseUnixFTPEntryParser extends RegexFTPFileEntryParserImpl { /** * months abbreviations looked for by this parser. Also used * to determine which month has been matched by the parser. */ private static final String MONTHS = "(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)"; /** * this is the regular expression used by this parser. */ private static final String REGEX = "(([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])" + "([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z])([\\-]|[A-Z]))" + "(\\S*)\\s*" + "(\\S+)\\s*" + "(\\S*)\\s*" + "(\\d*)\\s*" + "(\\d*)\\s*" + MONTHS + "\\s*" + "((?:[012]\\d*)|(?:3[01]))\\s*" + "((\\d\\d\\d\\d)|((?:[01]\\d)|(?:2[0123])):([012345]\\d))\\s" + "(\\S*)(\\s*.*)"; /** * The sole constructor for a EnterpriseUnixFTPEntryParser object. * */ public EnterpriseUnixFTPEntryParser() { super(REGEX); } /** * Parses a line of a unix FTP server file listing and converts it into a * usable format in the form of an FTPFile instance. If * the file listing line doesn't describe a file, null is * returned, otherwise a FTPFile instance representing the * files in the directory is returned. * * @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 file = new FTPFile(); file.setRawListing(entry); if (matches(entry)) { String usr = group(14); String grp = group(15); String filesize = group(16); String mo = group(17); String da = group(18); String yr = group(20); String hr = group(21); String min = group(22); String name = group(23); file.setType(FTPFile.FILE_TYPE); file.setUser(usr); file.setGroup(grp); try { file.setSize(Integer.parseInt(filesize)); } catch (NumberFormatException e) { // intentionally do nothing } Calendar cal = Calendar.getInstance(); cal.set(Calendar.SECOND, 0); cal.set(Calendar.MINUTE, 0); cal.set(Calendar.HOUR_OF_DAY, 0); try { int pos = MONTHS.indexOf(mo); int month = pos / 4; if (yr != null) { // it's a year cal.set(Calendar.YEAR, Integer.parseInt(yr)); } else { // it must be hour/minute or we wouldn't have matched int year = cal.get(Calendar.YEAR); // if the month we're reading is greater than now, it must // be last year if (cal.get(Calendar.MONTH) < month) { year--; } cal.set(Calendar.YEAR, year); cal.set(Calendar.HOUR_OF_DAY, Integer.parseInt(hr)); cal.set(Calendar.MINUTE, Integer.parseInt(min)); } cal.set(Calendar.MONTH, month); cal.set(Calendar.DATE, Integer.parseInt(da)); file.setTimestamp(cal); } catch (NumberFormatException e) { // do nothing, date will be uninitialized } file.setName(name); return file; } return null; } }

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