databionics.io
Class CsvFile

java.lang.Object
  databionics.io.BaseFile
      databionics.io.Array2DFile
          databionics.io.LrnFile
              databionics.io.CsvFile

public class CsvFile
extends LrnFile

Comma seperated values So far only tested with loading data from finance.yahoo.com.

Field Summary

protected java.util.Calendar	calendar calendar for date calculations.
protected java.text.DateFormat	df date format.
protected static org.apache.log4j.Logger	log Log4j logging.

Fields inherited from class databionics.io.LrnFile

classColumnIndex, classColumnName, classes, CLS_COLUMN, DAT_COLUMN, defines, KEY_COLUMN, keyColumnIndex, keyColumnName, keys, names, NUL_COLUMN, nullColumns

Fields inherited from class databionics.io.Array2DFile

data

Fields inherited from class databionics.io.BaseFile

allowEmptyLines, comment, commentPrefix, delimiter, delimiters, file, header, headerPrefix, loc, nf

Constructor Summary

CsvFile()
Standard constructor

CsvFile(int rows, int cols)
Constructor with size for an empty array.

CsvFile(LrnFile file)
Clone constructor

CsvFile(java.lang.String filename)
Constructor with a filename

Method Summary

protected void	buildHeader() Generate header.
protected void	checkHeader() Check consistency of header information.
static FileType	getFileType() Get the type of file.
protected void	init() Init data fields.
protected boolean	isHeader(java.lang.String line) Determine if a line still contains header information or whether the data lines started
protected void	parseHeader() Parse the header.
protected void	parseLine(int row, java.lang.String line) Parse a line.

Methods inherited from class databionics.io.LrnFile

buildLine, getByIndex, getClassColumnIndex, getClassColumnName, getClasses, getDefines, getKeyColumnIndex, getKeyColumnName, getKeys, getNames, init, initTest, parseNames, removeColumn, setClassColumnName, setClasses, setClasses, setDefines, setDefines, setDefines, setKeyColumnName, setKeys, setKeys, setKeys, setNames, setNames

Methods inherited from class databionics.io.Array2DFile

get, getColumns, getData, getRows, getSize, set, setData, setData

Methods inherited from class databionics.io.BaseFile

checkHeaderAgainstSize, getComment, getFile, getFilename, getHeader, getLocale, getNumberFormat, isNaN, isNumber, load, load, parseError, save, save, setComment, setFilename, setLocale, writeStringList, writeStringList

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static org.apache.log4j.Logger log

Log4j logging.

df

protected java.text.DateFormat df

date format.

calendar

protected java.util.Calendar calendar

calendar for date calculations.

Constructor Detail

CsvFile

public CsvFile()

Standard constructor

CsvFile

public CsvFile(java.lang.String filename)

Constructor with a filename

Parameters:

filename - Name of the file

CsvFile

public CsvFile(int rows,
               int cols)

Constructor with size for an empty array.

Parameters:

rows - Rows of data array.

cols - Columns of data array.

CsvFile

public CsvFile(LrnFile file)

Clone constructor

Method Detail

init

protected void init()

Init data fields. Needed in several constructors.

isHeader

protected boolean isHeader(java.lang.String line)

Determine if a line still contains header information or whether the data lines started

Overrides:

isHeader in class BaseFile

Parameters:

line - Line to check

parseHeader

protected void parseHeader()

Parse the header.

Overrides:

parseHeader in class LrnFile

parseLine

protected void parseLine(int row,
                         java.lang.String line)

Parse a line.

Overrides:

parseLine in class LrnFile

Parameters:

row - Number of current line.

line - Current line.

checkHeader

protected void checkHeader()

Check consistency of header information.

Overrides:

checkHeader in class LrnFile

buildHeader

protected void buildHeader()

Generate header.

Overrides:

buildHeader in class LrnFile

getFileType

public static FileType getFileType()

Get the type of file.