Method parse

src/org/apache/pig/parser/QueryParserDriver.java:176–205

(String query)

    }

    public LogicalPlan parse(String query) throws ParserException {
        LogicalPlan plan = null;

        ScriptState ss = ScriptState.get();
        CommonTokenStream tokenStream = tokenize(query, ss.getFileName());

        Tree ast = parse( tokenStream );
        ast = expandMacro( ast );

        try{
            ast = validateAst( ast );
            applyRegisters(ast);

            LogicalPlanGenerator planGenerator =
                new LogicalPlanGenerator( new CommonTreeNodeStream( ast ), pigContext, scope, fileNameMap );
            planGenerator.query();

            checkError( planGenerator );

            plan = planGenerator.getLogicalPlan();
            operators = planGenerator.getOperators();
            lastRel = planGenerator.getLastRel();
        } catch(RecognitionException ex) {
            throw new ParserException( ex );
        } catch(Exception ex) {
            throw new ParserException( ex.getMessage(), ex );
        }

        return plan;
    }

    public Map<String, Operator> getOperators() {
        return operators;