diff options
Diffstat (limited to 'org/apache/commons/net/ftp/parser/VMSVersioningFTPEntryParser.java')
| -rw-r--r-- | org/apache/commons/net/ftp/parser/VMSVersioningFTPEntryParser.java | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/org/apache/commons/net/ftp/parser/VMSVersioningFTPEntryParser.java b/org/apache/commons/net/ftp/parser/VMSVersioningFTPEntryParser.java deleted file mode 100644 index cb25709..0000000 --- a/org/apache/commons/net/ftp/parser/VMSVersioningFTPEntryParser.java +++ /dev/null @@ -1,183 +0,0 @@ -/*
- * 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 filename.
- *
- * This is a sample of VMS LIST output
- *
- * "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)",
- * <P>
- *
- * @author <a href="Winston.Ojeda@qg.com">Winston Ojeda</a>
- * @author <a href="sestegra@free.fr">Stephane ESTE-GRACIAS</a>
- * @version $Id: VMSVersioningFTPEntryParser.java 636854 2008-03-13 19:55:01Z sebb $
- *
- * @see org.apache.commons.net.ftp.FTPFileEntryParser FTPFileEntryParser (for usage instructions)
- */
-public class VMSVersioningFTPEntryParser extends VMSFTPEntryParser
-{
-
- private Matcher _preparse_matcher_;
- private Pattern _preparse_pattern_;
- private static final String PRE_PARSE_REGEX =
- "(.*);([0-9]+)\\s*.*";
-
- /**
- * Constructor for a VMSFTPEntryParser object. Sets the versioning member
- * to the supplied value.
- *
- * @exception 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.
- * @exception 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(FTPClientConfig config)
- {
- super();
- configure(config);
- try
- {
- //_preparse_matcher_ = new Perl5Matcher();
- _preparse_pattern_ = Pattern.compile(PRE_PARSE_REGEX);
- }
- catch (PatternSyntaxException pse)
- {
- throw new IllegalArgumentException (
- "Unparseable regex supplied: " + PRE_PARSE_REGEX);
- }
-
- }
-
-
-
- private static class NameVersion {
- String name;
- int versionNumber;
- NameVersion(String name, String vers) {
- this.name = name;
- this.versionNumber = Integer.parseInt(vers);
- }
- }
-
- /**
- * 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(List<String> original) {
- original = super.preParse(original);
- HashMap<String, NameVersion> existingEntries = new HashMap<String, NameVersion>();
- ListIterator<String> iter = original.listIterator();
- while (iter.hasNext()) {
- String entry = iter.next().trim();
- MatchResult result = null;
- _preparse_matcher_ = _preparse_pattern_.matcher(entry);
- if (_preparse_matcher_.matches()) {
- result = _preparse_matcher_.toMatchResult();
- String name = result.group(1);
- String version = result.group(2);
- NameVersion nv = new NameVersion(name, version);
- NameVersion existing = existingEntries.get(name);
- if (null != existing) {
- if (nv.versionNumber < existing.versionNumber) {
- iter.remove(); // removal removes 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()) {
- String entry = iter.previous().trim();
- MatchResult result = null;
- _preparse_matcher_ = _preparse_pattern_.matcher(entry);
- if (_preparse_matcher_.matches()) {
- result = _preparse_matcher_.toMatchResult();
- String name = result.group(1);
- String version = result.group(2);
- NameVersion nv = new NameVersion(name, version);
- NameVersion existing = existingEntries.get(name);
- if (null != existing) {
- if (nv.versionNumber < existing.versionNumber) {
- iter.remove(); // removal removes from original list.
- }
- }
- }
-
- }
- return original;
- }
-
-
- @Override
- protected boolean isVersioning() {
- return true;
- }
-
-}
-
-/* Emacs configuration
- * Local variables: **
- * mode: java **
- * c-basic-offset: 4 **
- * indent-tabs-mode: nil **
- * End: **
- */
|