net.sourceforge.jdbcimporter.parser
Class FixedDelimiterParser

java.lang.Object
  net.sourceforge.jdbcimporter.parser.FixedDelimiterParser

All Implemented Interfaces:

DelimiterParser

public class FixedDelimiterParser

extends java.lang.Object

implements DelimiterParser

The FixedDelimiterParser class implements the DelimiterParser interface to parse column values from a fixed file format. Each column value is taken from a section of the line (specified by the columnPositions property).

Since:

0.6

Author:

Chris Nagy

Field Summary

protected int[][]	columnPositions The number range for each column.
protected int	length The length of each row in the file.
protected static org.apache.commons.logging.Log	LOG The log for debug information.
protected java.io.BufferedReader	reader The input reader.

Constructor Summary

FixedDelimiterParser()

Method Summary

java.lang.String	getNextRow() Returns the next row to be imported as a String.
ColumnValue[]	getValues(java.lang.String nextRow) Returns the column values for the row specified.
void	setColumnPositions(int[][] positions) Sets the number range for each column value.
void	setLength(int len) Sets the length of each row.
void	setReader(java.io.Reader input) Sets the input source for the parser.

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.commons.logging.Log LOG

The log for debug information.

reader

protected java.io.BufferedReader reader

The input reader.

columnPositions

protected int[][] columnPositions

The number range for each column.

length

protected int length

The length of each row in the file.

Constructor Detail

FixedDelimiterParser

public FixedDelimiterParser()

Method Detail

setColumnPositions

public void setColumnPositions(int[][] positions)

Sets the number range for each column value. A number range is specified by two numbers : the starting position and the ending position). The size of the first dimension should be equal to the number of columns to be parsed. The size of the second dimension should be 2, where the first value is the starting position and the second value is the ending position. The starting position should be greater then the ending position and the both values should be greater than zero. Example:

 setColumnPositions( new int[][] { { 1, 5 }, { 16, 20 }, { 6, 15 } } )
 

This will setup the FixedDelimiterParser to parse three column values: the first column value is stored from the 1st character to the 5th character, the second column value is stored from the 15th character to the 20th character, and the last column value is stored from the 6th character to the 15th character.

Parameters:

positions - The number ranges for all column values

setLength

public void setLength(int len)

Sets the length of each row.

Parameters:

len - the length

Since:

0.61

setReader

public void setReader(java.io.Reader input)

Description copied from interface: DelimiterParser

Sets the input source for the parser.

Specified by:

setReader in interface DelimiterParser

Parameters:

input - the source of the data to import.

See Also:

DelimiterParser.setReader(Reader)

getNextRow

public java.lang.String getNextRow()
                            throws java.io.IOException

Description copied from interface: DelimiterParser

Returns the next row to be imported as a String.

Specified by:

getNextRow in interface DelimiterParser

Returns:

the next row to import

Throws:

java.io.IOException - if an error occurs while retrieving the next row

See Also:

DelimiterParser.getNextRow()

getValues

public ColumnValue[] getValues(java.lang.String nextRow)
                        throws MalformedDataException

Description copied from interface: DelimiterParser

Returns the column values for the row specified.

Specified by:

getValues in interface DelimiterParser

Parameters:

nextRow - the row to be parsed into column values

Returns:

the column values

Throws:

MalformedDataException - if the row is not formatted properly

See Also:

DelimiterParser.getValues(String)