io.cdap.directives.transformation

Class MaskNumber

java.lang.Object

io.cdap.directives.transformation.MaskNumber

All Implemented Interfaces:

Directive, Executor<List<Row>,List<Row>>, Lineage, Serializable

@Categories(categories="transform")
public class MaskNumber
extends Object
implements Directive, Lineage

A directive that applies substitution masking on the column.

Substitution masking is generally used for masking credit card or SSN numbers. This type of masking is fixed masking, where the pattern is applied on the fixed length string.

• Use of # will include the digit from the position.
• Use x/X to mask the digit at that position (converted to lowercase x in the result)
• Any other characters will be inserted as-is.

        Executor step = new MaskNumber(lineno, line, "ssn", "XXX-XX-####", 1);
        Executor step = new MaskNumber(lineno, line, "amex", "XXXX-XXXXXX-X####", 1);
    

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	MASK_NUMBER
static int	MASK_SHUFFLE
static String	NAME

Fields inherited from interface io.cdap.wrangler.api.Directive

TYPE

Constructor Summary

Constructors

Constructor and Description
MaskNumber()

Method Summary

Modifier and Type	Method and Description
UsageDefinition	define()
void	destroy()
List<Row>	execute(List<Row> rows, ExecutorContext context)
void	initialize(Arguments args)
Mutation	lineage()

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

MASK_NUMBER

public static final int MASK_NUMBER

See Also:

Constant Field Values

MASK_SHUFFLE

public static final int MASK_SHUFFLE

See Also:

Constant Field Values

Constructor Detail

MaskNumber

public MaskNumber()

Method Detail

define

public UsageDefinition define()

Specified by:

define in interface Directive

initialize

public void initialize(Arguments args)
                throws DirectiveParseException

Specified by:

initialize in interface Executor<List<Row>,List<Row>>

Throws:

DirectiveParseException

destroy

public void destroy()

Specified by:

destroy in interface Executor<List<Row>,List<Row>>

execute

public List<Row> execute(List<Row> rows,
                         ExecutorContext context)
                  throws DirectiveExecutionException

Specified by:

execute in interface Executor<List<Row>,List<Row>>

Throws:

DirectiveExecutionException

lineage

public Mutation lineage()

Specified by:

lineage in interface Lineage