io.cdap.wrangler.parser

Class GrammarBasedParser

java.lang.Object

io.cdap.wrangler.parser.GrammarBasedParser

All Implemented Interfaces:

RecipeParser

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.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
List<Directive>	parse() Parses the recipe provided to this class and instantiate a list of Directive from the recipe.

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 recipe,
                          DirectiveRegistry registry)

GrammarBasedParser

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

GrammarBasedParser

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

Method Detail

parse

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

Parses the recipe provided to this class and instantiate a list of Directive from the recipe.

Specified by:

parse in interface RecipeParser

Returns:

List of Directive.

Throws:

DirectiveLoadException

DirectiveNotFoundException

DirectiveParseException