Examples of org.apache.pig.impl.plan.CompilationMessageCollector

org.apache.pig.impl.plan.CompilationMessageCollector
This class is used for collecting all messages (error + warning) in compilation process. These messages are reported back to users at the end of compilation. iterator() has to be called after CompilationMessageCollector is fully populated otherwise the state is undefined.

        planTester.buildPlan("a = load '1.txt' as (a0);");
        planTester.buildPlan("b = foreach a generate flatten((bag{tuple(map[])})a0) as b0:map[];");
        LogicalPlan plan = planTester.buildPlan("c = foreach b generate (long)b0#'key1';");


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;
        planTester.printPlan(plan, TypeCheckingTestUtil.getCurrentMethodName());


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        LOForEach foreach = (LOForEach)plan.getLeaves().get(0);
        LogicalPlan foreachPlan = foreach.getForEachPlans().get(0);

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        plan.add(load1) ;
        plan.add(foreach1) ;


        plan.connect(load1, foreach1);


        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        try {
            typeValidator.validate(plan, collector) ;
            fail("Exception expected") ;
        }
        catch (PlanValidationException pve) {
            // good
        }
        printMessageCollector(collector) ;
        printTypeGraph(plan) ;


        if (!collector.hasError()) {
            throw new AssertionError("Expect error") ;
        }


    }

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        plan.add(load1) ;
        plan.add(foreach1) ;


        plan.connect(load1, foreach1);


        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        // check outer schema
        Schema endResultSchema = foreach1.getSchema() ;

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        plan.connect(load1, cross);
        plan.connect(load2, cross);


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;

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    public void testLineage1() throws Throwable {
        planTester.buildPlan("a = load 'a' as (field1: int, field2: float, field3: chararray );") ;
        LogicalPlan plan = planTester.buildPlan("b = foreach a generate field1 + 1.0 ;") ;


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;
        planTester.printPlan(plan, TypeCheckingTestUtil.getCurrentMethodName());


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        LOForEach foreach = (LOForEach)plan.getLeaves().get(0);
        LogicalPlan foreachPlan = foreach.getForEachPlans().get(0);

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    public void testLineage1NoSchema() throws Throwable {
        planTester.buildPlan("a = load 'a';") ;
        LogicalPlan plan = planTester.buildPlan("b = foreach a generate $1 + 1.0 ;") ;


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;
        planTester.printPlan(plan, TypeCheckingTestUtil.getCurrentMethodName());


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        LOForEach foreach = (LOForEach)plan.getLeaves().get(0);
        LogicalPlan foreachPlan = foreach.getForEachPlans().get(0);

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    public void testLineage2() throws Throwable {
        planTester.buildPlan("a = load 'a' as (field1, field2: float, field3: chararray );") ;
        LogicalPlan plan = planTester.buildPlan("b = foreach a generate field1 + 1.0 ;") ;


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;
        planTester.printPlan(plan, TypeCheckingTestUtil.getCurrentMethodName());


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        LOForEach foreach = (LOForEach)plan.getLeaves().get(0);
        LogicalPlan foreachPlan = foreach.getForEachPlans().get(0);

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        planTester.buildPlan("b = group a by field1 ;") ;
        planTester.buildPlan("c = foreach b generate flatten(a) ;") ;
        LogicalPlan plan = planTester.buildPlan("d = foreach c generate field1 + 1.0 ;") ;


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        LOForEach foreach = (LOForEach)plan.getLeaves().get(0);
        LogicalPlan foreachPlan = foreach.getForEachPlans().get(0);

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        planTester.buildPlan("b = group a by $0 ;") ;
        planTester.buildPlan("c = foreach b generate flatten(a) ;") ;
        LogicalPlan plan = planTester.buildPlan("d = foreach c generate $0 + 1.0 ;") ;


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;
        planTester.printPlan(plan, TypeCheckingTestUtil.getCurrentMethodName());


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        LOForEach foreach = (LOForEach)plan.getLeaves().get(0);
        LogicalPlan foreachPlan = foreach.getForEachPlans().get(0);

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        planTester.buildPlan("a = load 'a' using BinStorage() as (field1, field2: float, field3: chararray );") ;
        planTester.buildPlan("b = group a by field1 ;") ;
        LogicalPlan plan = planTester.buildPlan("c = foreach b generate group + 1.0 ;") ;


        // validate
        CompilationMessageCollector collector = new CompilationMessageCollector() ;
        TypeCheckingValidator typeValidator = new TypeCheckingValidator() ;
        typeValidator.validate(plan, collector) ;


        printMessageCollector(collector) ;
        printTypeGraph(plan) ;
        planTester.printPlan(plan, TypeCheckingTestUtil.getCurrentMethodName());


        if (collector.hasError()) {
            throw new AssertionError("Expect no  error") ;
        }


        LOForEach foreach = (LOForEach)plan.getLeaves().get(0);
        LogicalPlan foreachPlan = foreach.getForEachPlans().get(0);

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