Package adams.data.io.input

Class SimpleArffSpreadSheetReader

java.lang.Object

adams.core.logging.LoggingObject

adams.core.logging.CustomLoggingLevelObject

adams.core.option.AbstractOptionHandler

adams.data.io.input.AbstractSpreadSheetReader

adams.data.io.input.SimpleArffSpreadSheetReader

All Implemented Interfaces:

AdditionalInformationHandler, Destroyable, ErrorProvider, GlobalInfoSupporter, EncodingSupporter, FileFormatHandler, LoggingLevelHandler, LoggingSupporter, OptionHandler, SizeOfHandler, Stoppable, StoppableWithFeedback, SpreadSheetReader, DataRowTypeHandler, SpreadSheetTypeHandler, Serializable

public class SimpleArffSpreadSheetReader
extends AbstractSpreadSheetReader

Simple reader for Weka ARFF files, only supports NUMERIC, NOMINAL, STRING and DATE attributes.

-logging-level <OFF|SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST> (property: loggingLevel)
    The logging level for outputting errors and debugging output.
    default: WARNING
 

-data-row-type <adams.data.spreadsheet.DataRow> (property: dataRowType)
    The type of row to use for the data.
    default: adams.data.spreadsheet.DenseDataRow
 

-spreadsheet-type <adams.data.spreadsheet.SpreadSheet> (property: spreadSheetType)
    The type of spreadsheet to use for the data.
    default: adams.data.spreadsheet.DefaultSpreadSheet
 

Author:

FracPete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SimpleArffSpreadSheetReader.AttributeType	Attribute types.

Nested classes/interfaces inherited from class adams.data.io.input.AbstractSpreadSheetReader

AbstractSpreadSheetReader.InputType

Field Summary

Fields

Modifier and Type	Field	Description
static String	KEYWORD_ATTRIBUTE
static String	KEYWORD_DATA
static String	KEYWORD_RELATION

Fields inherited from class adams.data.io.input.AbstractSpreadSheetReader

m_DataRowType, m_Encoding, m_LastError, m_SpreadSheetType, m_Stopped, OPTION_INPUT, OPTION_OUTPUT

Fields inherited from class adams.core.option.AbstractOptionHandler

m_OptionManager

Fields inherited from class adams.core.logging.LoggingObject

m_Logger, m_LoggingIsEnabled, m_LoggingLevel

Constructor Summary

Constructors

Constructor	Description
SimpleArffSpreadSheetReader()

Method Summary

Modifier and Type	Method	Description
protected SpreadSheet	doRead(Reader r)	Performs the actual reading.
protected DateFormat	getAttributeDateFormat(String line)	Extracts the date format for the attribute from the line.
protected String	getAttributeName(String line)	Extracts the attribute name from the line.
protected SimpleArffSpreadSheetReader.AttributeType	getAttributeType(String line)	Extracts the attribute type from the line.
SpreadSheetWriter	getCorrespondingWriter()	Returns, if available, the corresponding writer.
String	getFormatDescription()	Returns a string describing the format (used in the file chooser).
String[]	getFormatExtensions()	Returns the extension(s) of the format.
protected AbstractSpreadSheetReader.InputType	getInputType()	Returns how to read the data, from a file, stream or reader.
String	globalInfo()	Returns a string describing the object.
static void	main(String[] args)	Runs the reader from the command-line.
protected HashMap<String,String>	parseAttribute(String line)	Extracts the attribute name, type and date format from the line.
protected boolean	supportsCompressedInput()	Returns whether to automatically handle gzip compressed files.

Methods inherited from class adams.data.io.input.AbstractSpreadSheetReader

canDecompress, check, dataRowTypeTipText, defineOptions, doRead, doRead, encodingTipText, getAdditionalInformation, getDataRowType, getDefaultDataRowType, getDefaultFormatExtension, getDefaultSpreadSheet, getEncoding, getLastError, getReaders, getSpreadSheetType, hasLastError, initialize, isStopped, read, read, read, read, runReader, setDataRowType, setEncoding, setLastError, setSpreadSheetType, spreadSheetTypeTipText, stopExecution

Methods inherited from class adams.core.option.AbstractOptionHandler

cleanUpOptions, destroy, finishInit, getDefaultLoggingLevel, getOptionManager, loggingLevelTipText, newOptionManager, reset, setLoggingLevel, toCommandLine, toString

Methods inherited from class adams.core.logging.LoggingObject

configureLogger, getLogger, getLoggingLevel, initializeLogging, isLoggingEnabled, sizeOf

Methods inherited from class java.lang.Object

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

Methods inherited from interface adams.core.Destroyable

destroy

Methods inherited from interface adams.core.logging.LoggingLevelHandler

getLoggingLevel

Methods inherited from interface adams.core.option.OptionHandler

cleanUpOptions, getOptionManager, toCommandLine

Field Detail

KEYWORD_RELATION

public static final String KEYWORD_RELATION

See Also:

Constant Field Values

KEYWORD_ATTRIBUTE

public static final String KEYWORD_ATTRIBUTE

See Also:

Constant Field Values

KEYWORD_DATA

public static final String KEYWORD_DATA

See Also:

Constant Field Values

Constructor Detail

SimpleArffSpreadSheetReader

public SimpleArffSpreadSheetReader()

Method Detail

globalInfo

public String globalInfo()

Returns a string describing the object.

Specified by:

globalInfo in interface GlobalInfoSupporter

Specified by:

globalInfo in class AbstractOptionHandler

Returns:

a description suitable for displaying in the gui

getFormatDescription

public String getFormatDescription()

Returns a string describing the format (used in the file chooser).

Specified by:

getFormatDescription in interface FileFormatHandler

Specified by:

getFormatDescription in interface SpreadSheetReader

Specified by:

getFormatDescription in class AbstractSpreadSheetReader

Returns:

a description suitable for displaying in the file chooser

getFormatExtensions

public String[] getFormatExtensions()

Returns the extension(s) of the format.

Specified by:

getFormatExtensions in interface FileFormatHandler

Specified by:

getFormatExtensions in interface SpreadSheetReader

Specified by:

getFormatExtensions in class AbstractSpreadSheetReader

Returns:

the extension (without the dot!)

getInputType

protected AbstractSpreadSheetReader.InputType getInputType()

Returns how to read the data, from a file, stream or reader.

Specified by:

getInputType in class AbstractSpreadSheetReader

Returns:

how to read the data

getCorrespondingWriter

public SpreadSheetWriter getCorrespondingWriter()

Returns, if available, the corresponding writer.

Returns:

the writer, null if none available

supportsCompressedInput

protected boolean supportsCompressedInput()

Returns whether to automatically handle gzip compressed files.

Overrides:

supportsCompressedInput in class AbstractSpreadSheetReader

Returns:

true if to automatically decompress

parseAttribute

protected HashMap<String,String> parseAttribute(String line)

Extracts the attribute name, type and date format from the line.

Parameters:

line - the line to parse

Returns:

the extracted data

getAttributeName

protected String getAttributeName(String line)

Extracts the attribute name from the line.

Parameters:

line - the line to parse

Returns:

the name

getAttributeType

protected SimpleArffSpreadSheetReader.AttributeType getAttributeType(String line)

Extracts the attribute type from the line.

Parameters:

line - the line to parse

Returns:

the type

getAttributeDateFormat

protected DateFormat getAttributeDateFormat(String line)

Extracts the date format for the attribute from the line.

Parameters:

line - the line to parse

Returns:

the format, null if not a date attribute

doRead

protected SpreadSheet doRead(Reader r)

Performs the actual reading.

Overrides:

doRead in class AbstractSpreadSheetReader

Parameters:

r - the reader to read from

Returns:

the spreadsheet or null in case of an error

See Also:

getInputType()

main

public static void main(String[] args)

Runs the reader from the command-line. Use the option AbstractSpreadSheetReader.OPTION_INPUT to specify the input file. If the option AbstractSpreadSheetReader.OPTION_OUTPUT is specified then the read sheet gets output as .csv files in that directory.

Parameters:

args - the command-line options to use