How to use

co.cask.wrangler.parser.MigrateToV2

constructor

public RecipePipeline compile(List<String> recipe)
 throws RecipeException, DirectiveParseException, DirectiveLoadException, DirectiveNotFoundException {
 // Support only in-built directives.
 CompositeDirectiveRegistry registry = new CompositeDirectiveRegistry(
  new SystemDirectiveRegistry()
 );
 String migrate = new MigrateToV2(recipe).migrate();
 RecipeParser parser = new GrammarBasedParser(migrate, registry);
 parser.initialize(null); // No Directive Context.
 RecipePipeline pipeline = new RecipePipelineExecutor();
 pipeline.initialize(parser, context);
 return pipeline;
}