io.cdap.directives.parser

Class CsvParser

java.lang.Object

io.cdap.directives.parser.CsvParser

All Implemented Interfaces:

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

@Categories(categories={"parser","csv"})
public class CsvParser
extends Object
implements Directive, Lineage

A CSV Parser Stage for parsing the Row provided based on configuration.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME

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

TYPE

Constructor Summary

Constructors

Constructor and Description
CsvParser()

Method Summary

Modifier and Type	Method and Description
UsageDefinition	define()
void	destroy()
List<Row>	execute(List<Row> rows, ExecutorContext context) Parses a give column in a Row as a CSV Row.
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

Constructor Detail

CsvParser

public CsvParser()

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,
                         ErrorRowException

Parses a give column in a Row as a CSV Row.

Specified by:

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

Parameters:

rows - Input Row to be wrangled by this step.

context - Specifies the context of the pipeline.

Returns:

New Row containing multiple columns based on CSV parsing.

Throws:

DirectiveExecutionException

ErrorRowException

lineage

public Mutation lineage()

Specified by:

lineage in interface Lineage