io.cdap.wrangler.parser

Class GrammarBasedParser

java.lang.Object

io.cdap.wrangler.parser.GrammarBasedParser

All Implemented Interfaces:

RecipeParser, Serializable

public class GrammarBasedParser
extends Object
implements RecipeParser

This class GrammarBasedParser is an implementation of RecipeParser. It's responsible for compiling the recipe and checking all the directives exist before concluding that the directives are ready for execution.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
GrammarBasedParser(String namespace, String[] directives, DirectiveRegistry registry)
GrammarBasedParser(String namespace, String recipe, DirectiveRegistry registry)

Method Summary

Modifier and Type	Method and Description
void	initialize(DirectiveContext context) Initialises the directive with a DirectiveContext.
List<Directive>	parse() Generates a configured set of Executor to be executed.

Methods inherited from class java.lang.Object

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

Constructor Detail

GrammarBasedParser

public GrammarBasedParser(String namespace,
                          String[] directives,
                          DirectiveRegistry registry)

GrammarBasedParser

public GrammarBasedParser(String namespace,
                          String recipe,
                          DirectiveRegistry registry)

Method Detail

parse

public List<Directive> parse()
                      throws DirectiveLoadException,
                             DirectiveNotFoundException,
                             DirectiveParseException

Generates a configured set of Executor to be executed.

Specified by:

parse in interface RecipeParser

Returns:

List of Executor.

Throws:

DirectiveLoadException

DirectiveNotFoundException

DirectiveParseException

initialize

public void initialize(DirectiveContext context)

Initialises the directive with a DirectiveContext.

Specified by:

initialize in interface RecipeParser

Parameters:

context -