de.lmu.ifi.dbs.elki.distance.distancefunction.external

Class AsciiDistanceParser

java.lang.Object

de.lmu.ifi.dbs.elki.datasource.parser.AbstractParser

de.lmu.ifi.dbs.elki.distance.distancefunction.external.AsciiDistanceParser

All Implemented Interfaces:

DistanceParser

@Title(value="Number Distance Parser")
 @Description(value="Parser for the following line format:\nid1 id2 distanceValue, where id1 and is2 are integers representing the two ids belonging to the distance value.\nThe ids and the distance value are separated by whitespace. Empty lines and lines beginning with \"#\" will be ignored.")
public class AsciiDistanceParser
extends AbstractParser
implements DistanceParser

Parser for parsing one distance value per line. A line must have the following format: id1 id2 distanceValue, where id1 and id2 are integers representing the two ids belonging to the distance value. Lines starting with "#" will be ignored.

Author:

Elke Achtert, Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AsciiDistanceParser.Parameterizer Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
private static Logging	LOG The logger for this class.

Fields inherited from class de.lmu.ifi.dbs.elki.datasource.parser.AbstractParser

ATTRIBUTE_CONCATENATION, COMMENT_PATTERN, DEFAULT_SEPARATOR, NUMBER_PATTERN, QUOTE_CHARS, tokenizer

Constructor Summary

Constructors

Constructor and Description
AsciiDistanceParser(Pattern colSep, String quoteChars, Pattern comment) Constructor.

Method Summary

Modifier and Type	Method and Description
protected Logging	getLogger() Get the logger for this class.
void	parse(InputStream in, DistanceCacheWriter cache) Returns a list of the objects parsed from the specified input stream and a list of the labels associated with the objects.

Methods inherited from class de.lmu.ifi.dbs.elki.datasource.parser.AbstractParser

cleanup, isComment, lengthWithoutLinefeed, toString

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

The logger for this class.

Constructor Detail

AsciiDistanceParser

public AsciiDistanceParser(Pattern colSep,
                           String quoteChars,
                           Pattern comment)

Constructor.

Parameters:

colSep - Column separator pattern

quoteChars - Quote characters

comment - Comment pattern

Method Detail

parse

public void parse(InputStream in,
                  DistanceCacheWriter cache)

Description copied from interface: DistanceParser

Returns a list of the objects parsed from the specified input stream and a list of the labels associated with the objects.

Specified by:

parse in interface DistanceParser

Parameters:

in - the stream to parse objects from

cache - Cache writer

getLogger

protected Logging getLogger()

Description copied from class: AbstractParser

Get the logger for this class.

Specified by:

getLogger in class AbstractParser

Returns:

Logger.