com.neurosys.etl.common.transformers

Class BitsToStringTransformer

java.lang.Object

com.neurosys.etl.common.transformers.BitsToStringTransformer

All Implemented Interfaces:

FunctionTransformer, Function, org.apache.commons.collections.Transformer

public class BitsToStringTransformer
extends Object
implements FunctionTransformer

Useful in converting an integer to its binary, Hex or octal form. See Integer.toString(int, int)

Additionally one can Map each position from RIGHT (least significant bit =0 position. Big-endianness notation)

Example : 9 = 1001, if maxLenToParse = 3, then out = 001, if wordMap contains 0-units, 1-tens, 2-Hundreds then out for 001 = units

Author:

Arjun Dhar

Field Summary

Fields

Modifier and Type	Field and Description
static Integer	NO_MAP_DEFAULT_KEY This value if put in the wordMap, will provide the corresponding value as Default for words/positions that are not mapped.

Constructor Summary

Constructors

Constructor and Description
BitsToStringTransformer()

Method Summary

Modifier and Type	Method and Description
int	getMatchSize() If there is a wordMap defined then; it will extract at a time matchSize characters from right in increment by this amount also/ The key will contain these many characters.
Integer	getMaxLenToParse() If specified will only consider upto {@link #maxLenToParse significant positions from the Right This makes it convenient to remove any padded significant bits or positions that are not in use.
int	getRadix() Radix: Binary (2), Hex (6), Octal (8)
String	getWordDelimeter() If there is a wordMap then this delimiter will be used between words
Map<?,String>	getWordMap() Optional word map to map key (characters extracted) to a meaningful Word.
void	setMatchSize(int matchSize) If there is a wordMap defined then; it will extract at a time matchSize characters from right in increment by this amount also/ The key will contain these many characters.
void	setMaxLenToParse(Integer maxLenToParse) If specified will only consider upto {@link #maxLenToParse significant positions from the Right This makes it convenient to remove any padded significant bits or positions that are not in use.
void	setRadix(int radix) Radix: Binary (2), Hex (6), Octal (8)
void	setWordDelimeter(String wordDelimeter) If there is a wordMap then this delimiter will be used between words
void	setWordMap(Map<?,String> wordMap) Optional word map to map key (characters extracted) to a meaningful Word.
Object	transform(Object input)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.neurosys.etl.common.transformers.FunctionTransformer

apply

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Field Detail

NO_MAP_DEFAULT_KEY

public static final Integer NO_MAP_DEFAULT_KEY

This value if put in the wordMap, will provide the corresponding value as Default for words/positions that are not mapped.

Default value:

is null

Constructor Detail

BitsToStringTransformer

public BitsToStringTransformer()

Method Detail

transform

public Object transform(Object input)

Specified by:

transform in interface org.apache.commons.collections.Transformer

getRadix

public int getRadix()

Radix: Binary (2), Hex (6), Octal (8)

Default value:

2 as Binary

setRadix

public void setRadix(int radix)

Radix: Binary (2), Hex (6), Octal (8)

Default value:

2 as Binary

getWordMap

public Map<?,String> getWordMap()

Optional word map to map key (characters extracted) to a meaningful Word. The key size is determined by matchSize
Key null is default word for any non-matching keys. Key can be a number for binary position mapping or a String.

See Also:

for key size

Can be null:

true

setWordMap

public void setWordMap(Map<?,String> wordMap)

Optional word map to map key (characters extracted) to a meaningful Word. The key size is determined by matchSize
Key null is default word for any non-matching keys. Key can be a number for binary position mapping or a String.

See Also:

for key size

Can be null:

true

getWordDelimeter

public String getWordDelimeter()

If there is a wordMap then this delimiter will be used between words

Can be null:

true

Default value:

' , '

setWordDelimeter

public void setWordDelimeter(String wordDelimeter)

If there is a wordMap then this delimiter will be used between words

Can be null:

true

Default value:

' , '

getMatchSize

public int getMatchSize()

If there is a wordMap defined then; it will extract at a time matchSize characters from right in increment by this amount also/ The key will contain these many characters.
If matchSize > 1 then binary position mapping will not work.

Default value:

1

setMatchSize

public void setMatchSize(int matchSize)

If there is a wordMap defined then; it will extract at a time matchSize characters from right in increment by this amount also/ The key will contain these many characters.
If matchSize > 1 then binary position mapping will not work.

Default value:

1

getMaxLenToParse

public Integer getMaxLenToParse()

If specified will only consider upto {@link #maxLenToParse significant positions from the Right
This makes it convenient to remove any padded significant bits or positions that are not in use.

setMaxLenToParse

public void setMaxLenToParse(Integer maxLenToParse)

If specified will only consider upto {@link #maxLenToParse significant positions from the Right
This makes it convenient to remove any padded significant bits or positions that are not in use.