org.ejml.ops

Class ReadCsv

java.lang.Object

org.ejml.ops.ReadCsv

Direct Known Subclasses:

ReadMatrixCsv

public class ReadCsv
extends java.lang.Object

Base class for reading CSV formatted files. CSV stands for column-space-value where text strings are separated by a space character. The values are typically stored in a human readable format. The encoded text for a single variable is referred to as a word.

Comments are allowed and identified by starting a line with the comment character. The comment character is user configurable. By default there is no comment character.

Constructor Summary

Constructors

Constructor and Description
ReadCsv(java.io.InputStream in) Constructor for ReadCsv

Method Summary

Methods

Modifier and Type	Method and Description
protected java.util.List<java.lang.String>	extractWords() Finds the next valid line of words in the stream and extracts them.
int	getLineNumber() Returns how many lines have been read.
java.io.BufferedReader	getReader() Returns the reader that it is using internally.
protected java.util.List<java.lang.String>	parseWords(java.lang.String line) Extracts the words from a string.
void	setComment(char comment) Sets the comment character.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadCsv

public ReadCsv(java.io.InputStream in)

Constructor for ReadCsv

Parameters:

in - Where the input comes from.

Method Detail

setComment

public void setComment(char comment)

Sets the comment character. All lines that start with this character will be ignored.

Parameters:

comment - The new comment character.

getLineNumber

public int getLineNumber()

Returns how many lines have been read.

Returns:

Line number

getReader

public java.io.BufferedReader getReader()

Returns the reader that it is using internally.

Returns:

The reader.

extractWords

protected java.util.List<java.lang.String> extractWords()
                                                 throws java.io.IOException

Finds the next valid line of words in the stream and extracts them.

Returns:

List of valid words on the line. null if the end of the file has been reached.

Throws:

java.io.IOException

parseWords

protected java.util.List<java.lang.String> parseWords(java.lang.String line)

Extracts the words from a string. Words are seperated by a space character.

Parameters:

line - The line that is being parsed.

Returns:

A list of words contained on the line.