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## org.apache.commons.net.ftp.parser
Class VMSVersioningFTPEntryParser

    java.lang.Object
      org.apache.commons.net.ftp.FTPFileEntryParserImpl
          org.apache.commons.net.ftp.parser.RegexFTPFileEntryParserImpl
              org.apache.commons.net.ftp.parser.ConfigurableFTPFileEntryParserImpl
                  org.apache.commons.net.ftp.parser.VMSFTPEntryParser
                      org.apache.commons.net.ftp.parser.VMSVersioningFTPEntryParser

All Implemented Interfaces:
  Configurable, FTPFileEntryParser, FTPFileListParser

public class VMSVersioningFTPEntryParser
extends VMSFTPEntryParser

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)",

Version:
  $Id: VMSVersioningFTPEntryParser.java 155429 2005-02-26 13:13:04Z dirkv $
Author:
  Winston Ojeda, Stephane ESTE-GRACIAS
See Also:
  `FTPFileEntryParser (for usage instructions)`

Field Summary

Fields inherited from class org.apache.commons.net.ftp.parser.RegexFTPFileEntryParserImpl
`_matcher_`

Constructor Summary
`VMSVersioningFTPEntryParser()` Constructor for a VMSFTPEntryParser object.
`VMSVersioningFTPEntryParser(FTPClientConfig config)` This constructor allows the creation of a VMSVersioningFTPEntryParser object with something other than the default configuration.

Method Summary
`protected boolean` | `isVersioning()`
`List` | `preParse(List original)` Implement hook provided for those implementers (such as VMSVersioningFTPEntryParser, and possibly others) which return multiple files with the same name to remove the duplicates ..

Methods inherited from class org.apache.commons.net.ftp.parser.VMSFTPEntryParser
`getDefaultConfiguration, parseFileList, parseFTPEntry, readNextEntry`

Methods inherited from class org.apache.commons.net.ftp.parser.ConfigurableFTPFileEntryParserImpl
`configure, parseTimestamp`

Methods inherited from class org.apache.commons.net.ftp.parser.RegexFTPFileEntryParserImpl
`getGroupCnt, getGroupsAsString, group, matches`

Methods inherited from class org.apache.commons.net.ftp.FTPFileEntryParserImpl
`parseFileList`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### VMSVersioningFTPEntryParser

    public VMSVersioningFTPEntryParser()

  Constructor for a VMSFTPEntryParser object. Sets the versioning member to the supplied value.

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 `REGEX` is not a valid regular expression.

### VMSVersioningFTPEntryParser

    public VMSVersioningFTPEntryParser(FTPClientConfig config)

  This constructor allows the creation of a VMSVersioningFTPEntryParser object with something other than the default configuration.

Parameters:
  `config` - The `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 `REGEX` is not a valid regular expression.
Since:
  1.4

Method Detail

### preParse

    public List preParse(List original)

  Implement hook provided for those implementers (such as VMSVersioningFTPEntryParser, and possibly others) which return multiple files with the same name to remove the duplicates ..

  Specified by:
    `preParse` in interface `FTPFileEntryParser`
  Overrides:
    `preParse` in class `FTPFileEntryParserImpl`
  Parameters:
    `original` - Original list
  Returns:
    Original list purged of duplicates

### isVersioning

    protected boolean isVersioning()

  Overrides:
    `isVersioning` in class `VMSFTPEntryParser`

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Copyright © 1997-2005 The Apache Software Foundation. All Rights Reserved.