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

Class SparseBitVectorLabelParser

java.lang.Object

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

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

All Implemented Interfaces:

Parser, Parameterizable

@Title(value="Sparse Bit Vector Label Parser")
@Description(value="Parser for the lines of the following format:\nA single line provides a single sparse BitVector. The indices of the one-bits are separated by whitespace. The first index starts with zero. Any substring not containing whitespace is tried to be read as an Integer. If this fails, it will be appended to a label. (Thus, any label must not be parseable as an Integer.) Empty lines and lines beginning with \"#\" will be ignored.")
public class SparseBitVectorLabelParser
extends AbstractParser
implements Parser

Provides a parser for parsing one sparse BitVector per line, where the indices of the one-bits are separated by whitespace. The first index starts with zero.

Several labels may be given per BitVector, a label must not be parseable as an Integer. Lines starting with "#" will be ignored.

Nested Class Summary

Nested Classes

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

Field Summary

Fields

Modifier and Type	Field and Description
private static Logging	LOG Class logger

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

ATTRIBUTE_CONCATENATION, comment, COMMENT_PATTERN, DEFAULT_SEPARATOR, NUMBER_PATTERN, QUOTE_CHARS, tokenizer

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
protected Logging	getLogger() Get the logger for this class.
protected VectorFieldTypeInformation<BitVector>	getTypeInformation(int dimensionality)
MultipleObjectsBundle	parse(InputStream in) Returns a list of the objects parsed from the specified input stream.

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

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

Class logger

Constructor Detail

SparseBitVectorLabelParser

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

Constructor.

Parameters:

colSep - Column separator

quoteChars - Quotation character

comment - Comment pattern

Method Detail

parse

public MultipleObjectsBundle parse(InputStream in)

Description copied from interface: Parser

Returns a list of the objects parsed from the specified input stream.

Specified by:

parse in interface Parser

Parameters:

in - the stream to parse objects from

Returns:

a list containing those objects parsed from the input stream

getTypeInformation

protected VectorFieldTypeInformation<BitVector> getTypeInformation(int dimensionality)

getLogger

protected Logging getLogger()

Description copied from class: AbstractParser

Get the logger for this class.

Specified by:

getLogger in class AbstractParser

Returns:

Logger.