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commons-net.jar Source Code
commons-net.jar is the bytecode of Apache Commons Net library, which implements the client side of many basic Internet protocols.
Apache Commons Net Source Code files are provided in the binary packge (commons-net-3.8.0-bin.zip). You can download it at Apache Commons Net Website.
The source code of commons-net-3.8.0.jar is provided below:
✍: FYIcenter
⏎ org/apache/commons/net/ftp/parser/VMSVersioningFTPEntryParser.java
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.HashMap; import java.util.List; import java.util.ListIterator; import java.util.regex.MatchResult; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.util.regex.PatternSyntaxException; import org.apache.commons.net.ftp.FTPClientConfig; /** * Special implementation VMSFTPEntryParser with versioning turned on. * This parser removes all duplicates and only leaves the version with the highest * version number for each file name. * <p> * This is a sample of VMS LIST output * </p> * <pre> * "1-JUN.LIS;1 9/9 2-JUN-1998 07:32:04 [GROUP,OWNER] (RWED,RWED,RWED,RE)", * "1-JUN.LIS;2 9/9 2-JUN-1998 07:32:04 [GROUP,OWNER] (RWED,RWED,RWED,RE)", * "DATA.DIR;1 1/9 2-JUN-1998 07:32:04 [GROUP,OWNER] (RWED,RWED,RWED,RE)", * </pre> * * @see org.apache.commons.net.ftp.FTPFileEntryParser FTPFileEntryParser (for usage instructions) */ public class VMSVersioningFTPEntryParser extends VMSFTPEntryParser { private final Pattern preparsePattern; private static final String PRE_PARSE_REGEX = "(.*?);([0-9]+)\\s*.*"; /** * Constructor for a VMSFTPEntryParser object. * * @throws IllegalArgumentException * Thrown if the regular expression is unparseable. Should not be seen * under normal conditions. It it is seen, this is a sign that * <code>REGEX</code> is not a valid regular expression. */ public VMSVersioningFTPEntryParser() { this(null); } /** * This constructor allows the creation of a VMSVersioningFTPEntryParser * object with something other than the default configuration. * * @param config The {@link FTPClientConfig configuration} object used to * configure this parser. * @throws IllegalArgumentException * Thrown if the regular expression is unparseable. Should not be seen * under normal conditions. It it is seen, this is a sign that * <code>REGEX</code> is not a valid regular expression. * @since 1.4 */ public VMSVersioningFTPEntryParser(final FTPClientConfig config) { configure(config); try { //_preparse_matcher_ = new Perl5Matcher(); preparsePattern = Pattern.compile(PRE_PARSE_REGEX); } catch (final PatternSyntaxException pse) { throw new IllegalArgumentException ( "Unparseable regex supplied: " + PRE_PARSE_REGEX); } } /** * Implement hook provided for those implementers (such as * VMSVersioningFTPEntryParser, and possibly others) which return * multiple files with the same name to remove the duplicates .. * * @param original Original list * * @return Original list purged of duplicates */ @Override public List<String> preParse(final List<String> original) { final HashMap<String, Integer> existingEntries = new HashMap<>(); final ListIterator<String> iter = original.listIterator(); while (iter.hasNext()) { final String entry = iter.next().trim(); MatchResult result = null; final Matcher _preparse_matcher_ = preparsePattern.matcher(entry); if (_preparse_matcher_.matches()) { result = _preparse_matcher_.toMatchResult(); final String name = result.group(1); final String version = result.group(2); final Integer nv = Integer.valueOf(version); final Integer existing = existingEntries.get(name); if (null != existing) { if (nv.intValue() < existing.intValue()) { iter.remove(); // removes older version from original list. continue; } } existingEntries.put(name, nv); } } // we've now removed all entries less than with less than the largest // version number for each name that were listed after the largest. // we now must remove those with smaller than the largest version number // for each name that were found before the largest while (iter.hasPrevious()) { final String entry = iter.previous().trim(); MatchResult result = null; final Matcher _preparse_matcher_ = preparsePattern.matcher(entry); if (_preparse_matcher_.matches()) { result = _preparse_matcher_.toMatchResult(); final String name = result.group(1); final String version = result.group(2); final Integer nv = Integer.valueOf(version); final Integer existing = existingEntries.get(name); if (null != existing) { if (nv.intValue() < existing.intValue()) { iter.remove(); // removes older version from original list. } } } } return original; } @Override protected boolean isVersioning() { return true; } }
⏎ org/apache/commons/net/ftp/parser/VMSVersioningFTPEntryParser.java
Or download all of them as a single archive file:
File name: commons-net-3.8.0-sources.jar File size: 437325 bytes Release date: 2020-01-22 Download
⇒ Download and Install commons-net.jar Binary Package
2009-02-08, 145218👍, 0💬
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