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

Class BitVectorLabelParser

java.lang.Object

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

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

de.lmu.ifi.dbs.elki.datasource.parser.NumberVectorLabelParser<BitVector>

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

All Implemented Interfaces:

BundleStreamSource, Parser, StreamingParser

@Title(value="Bit Vector Label Parser")
 @Description(value="Parses the following format of lines:\nA single line provides a single BitVector. Bits are separated by whitespace. Any substring not containing whitespace is tried to be read as Bit. If this fails, it will be appended to a label. (Thus, any label must not be parseable as Bit.) Empty lines and lines beginning with \"#\" will be ignored.")
public class BitVectorLabelParser
extends NumberVectorLabelParser<BitVector>
implements Parser

Parser for parsing one BitVector per line, bits separated by whitespace.

Several labels may be given per BitVector. A label must not be parseable as Bit. Lines starting with "#" will be ignored.

Author:

Arthur Zimek

Nested Class Summary

Nested Classes

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

Nested classes/interfaces inherited from interface de.lmu.ifi.dbs.elki.datasource.bundle.BundleStreamSource

BundleStreamSource.Event

Field Summary

Fields

Modifier and Type	Field and Description
(package private) gnu.trove.list.array.TLongArrayList	buf Buffer, will be reused.
private static Logging	LOG Class logger

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

attributes, columnnames, curlbl, curvec, factory, haslabels, labels, maxdim, meta, mindim, nextevent, unique

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
BitVectorLabelParser(Pattern colSep, String quoteChars, Pattern comment) Constructor.

Method Summary

Modifier and Type	Method and Description
protected Logging	getLogger() Get the logger for this class.
protected boolean	parseLineInternal() Internal method for parsing a single line.

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

buildMeta, cleanup, createDBObject, data, getMeta, getTypeInformation, initStream, isLabelColumn, nextEvent

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

asMultipleObjectsBundle, assignDBID, getLineNumber, hasDBIDs, nextLineExceptComments, parse

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

isComment, lengthWithoutLinefeed, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.datasource.parser.Parser

cleanup, parse

Field Detail

LOG

private static final Logging LOG

Class logger

buf

gnu.trove.list.array.TLongArrayList buf

Buffer, will be reused.

Constructor Detail

BitVectorLabelParser

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

Constructor.

Parameters:

colSep - Column separator

quoteChars - Quotation character

comment - Comment pattern

Method Detail

parseLineInternal

protected boolean parseLineInternal()

Description copied from class: NumberVectorLabelParser

Internal method for parsing a single line. Used by both line based parsing as well as block parsing. This saves the building of meta data for each line.

Overrides:

parseLineInternal in class NumberVectorLabelParser<BitVector>

Returns:

true when a valid line was read, false on a label row.

getLogger

protected Logging getLogger()

Description copied from class: AbstractParser

Get the logger for this class.

Overrides:

getLogger in class NumberVectorLabelParser<BitVector>

Returns:

Logger.