Package org.apache.commons.net.ftp.parser

Class UnixFTPEntryParser

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.UnixFTPEntryParser

All Implemented Interfaces:

Configurable, FTPFileEntryParser

public class UnixFTPEntryParser
extends ConfigurableFTPFileEntryParserImpl

Implementation FTPFileEntryParser and FTPFileListParser for standard UNIX Systems. This class is based on the logic of Daniel Savarese's DefaultFTPListParser, but adapted to use regular expressions and to fit the new FTPFileEntryParser interface.

See Also:

• FTPFileEntryParser (for usage instructions)

Field Summary

Fields

Modifier and Type	Field	Description
static final FTPClientConfig	NUMERIC_DATE_CONFIG	Some Linux distributions are now shipping an FTP server which formats file listing dates in an all-numeric format: "yyyy-MM-dd HH:mm.

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

_matcher_

Constructor Summary

Constructors

Constructor	Description
UnixFTPEntryParser()	The default constructor for a UnixFTPEntryParser object.
UnixFTPEntryParser(FTPClientConfig config)	This constructor allows the creation of a UnixFTPEntryParser object with something other than the default configuration.
UnixFTPEntryParser(FTPClientConfig config, boolean trimLeadingSpaces)	This constructor allows the creation of a UnixFTPEntryParser object with something other than the default configuration.

Method Summary

Modifier and Type	Method	Description
protected FTPClientConfig	getDefaultConfiguration()	Defines a default configuration to be used when this class is instantiated without a FTPClientConfig parameter being specified.
FTPFile	parseFTPEntry(String entry)	Parses a line of a unix (standard) FTP server file listing and converts it into a usable format in the form of an FTPFile instance.
List<String>	preParse(List<String> original)	Preparses the list to discard "total nnn" lines.

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, setRegex, setRegex

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

readNextEntry

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NUMERIC_DATE_CONFIG

public static final FTPClientConfig NUMERIC_DATE_CONFIG

Some Linux distributions are now shipping an FTP server which formats file listing dates in an all-numeric format: "yyyy-MM-dd HH:mm. This is a very welcome development, and hopefully it will soon become the standard. However, since it is so new, for now, and possibly forever, we merely accommodate it, but do not make it the default.

For now end users may specify this format only via UnixFTPEntryParser(FTPClientConfig). Steve Cohen - 2005-04-17

Constructor Details

UnixFTPEntryParser

public UnixFTPEntryParser()

The default constructor for a UnixFTPEntryParser object.

Throws:

IllegalArgumentException - Thrown if the regular expression is unparseable. Should not be seen under normal conditions. If this exception is seen, this is a sign that REGEX is not a valid regular expression.

UnixFTPEntryParser

public UnixFTPEntryParser(FTPClientConfig config)

This constructor allows the creation of a UnixFTPEntryParser 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. If this exception is seen, this is a sign that REGEX is not a valid regular expression.

Since:

1.4

UnixFTPEntryParser

public UnixFTPEntryParser(FTPClientConfig config,
 boolean trimLeadingSpaces)

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

Parameters:

config - The configuration object used to configure this parser.

trimLeadingSpaces - if true, trim leading spaces from file names

Throws:

IllegalArgumentException - Thrown if the regular expression is unparseable. Should not be seen under normal conditions. If this exception is seen, this is a sign that REGEX is not a valid regular expression.

Since:

3.4

Method Details

getDefaultConfiguration

protected FTPClientConfig getDefaultConfiguration()

Defines a default configuration to be used when this class is instantiated without a FTPClientConfig parameter being specified.

Specified by:

getDefaultConfiguration in class ConfigurableFTPFileEntryParserImpl

Returns:

the default configuration for this parser.

parseFTPEntry

public FTPFile parseFTPEntry(String entry)

Parses a line of a unix (standard) 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.

Parameters:

entry - A line of text from the file listing

Returns:

An FTPFile instance corresponding to the supplied entry

preParse

public List<String> preParse(List<String> original)

Preparses the list to discard "total nnn" lines.

Specified by:

preParse in interface FTPFileEntryParser

Overrides:

preParse in class FTPFileEntryParserImpl

Parameters:

original - Original list after it has been created from the server stream

Returns:

original unmodified.