Package org.apache.pig.newplan.logical.expression

Examples of org.apache.pig.newplan.logical.expression.LessThanExpression

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    public void visit(LOLesserThan op) throws VisitorException {
        ExpressionOperator left = op.getLhsOperand();
        ExpressionOperator right = op.getRhsOperand();
               
        LessThanExpression eq = new LessThanExpression
        (exprPlan, exprOpsMap.get(left), exprOpsMap.get(right));
        exprOpsMap.put(op, eq);
    }
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        // Main Tests start here
        assertEquals( BinCondExpression.class, genExp.getSources().get(0).getClass() );
        BinCondExpression add = (BinCondExpression) genExp.getSources().get(0);
        assertEquals( LessThanExpression.class, add.getCondition().getClass() );
        LessThanExpression lessThan = (LessThanExpression) add.getCondition();
        assertEquals( ProjectExpression.class, lessThan.getLhs().getClass() );
        ProjectExpression prj1 = ((ProjectExpression)lessThan.getLhs());
        ProjectExpression prj2 = ((ProjectExpression)lessThan.getRhs());
        assertEquals( ls.getField(0).uid, prj1.getFieldSchema().uid );
        assertEquals( ProjectExpression.class, lessThan.getRhs().getClass() );
        assertEquals( ls.getField(1).uid, prj2.getFieldSchema().uid );
       
        assertEquals( ProjectExpression.class, add.getLhs().getClass() );
        ProjectExpression prj3 = ((ProjectExpression)add.getLhs());
        assertEquals( ls.getField(1).uid, prj3.getFieldSchema().uid );
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        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        //  Generate a filter condition.
        LogicalExpression konst = new ConstantExpression( filterPlan, value);
        konst.setLocation( valLoc );
        UserFuncExpression udf = new UserFuncExpression( filterPlan, new FuncSpec( RANDOM.class.getName() ) );
        new LessThanExpression( filterPlan, udf, konst );
        LOFilter filter = new LOFilter( plan, true );
        return buildFilterOp( loc, filter, alias, inputAlias, filterPlan );
    }
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    String buildSampleOp(SourceLocation loc, LOFilter filter, String alias, String inputAlias,
            LogicalExpressionPlan samplePlan, LogicalExpression expr)
                    throws ParserValidationException {

        UserFuncExpression udf = new UserFuncExpression( samplePlan, new FuncSpec( RANDOM.class.getName() ) );
        new LessThanExpression( samplePlan, udf, expr );
        return buildFilterOp( loc, filter, alias, inputAlias, samplePlan );
    }
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        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        //  Generate a filter condition.
        LogicalExpression konst = new ConstantExpression( filterPlan, value);
        konst.setLocation( valLoc );
        UserFuncExpression udf = new UserFuncExpression( filterPlan, new FuncSpec( RANDOM.class.getName() ) );
        new LessThanExpression( filterPlan, udf, konst );
        LOFilter filter = new LOFilter( plan, true );
        return buildFilterOp( loc, filter, alias, inputAlias, filterPlan );
    }
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    String buildSampleOp(SourceLocation loc, LOFilter filter, String alias, String inputAlias,
            LogicalExpressionPlan samplePlan, LogicalExpression expr)
                    throws ParserValidationException {

        UserFuncExpression udf = new UserFuncExpression( samplePlan, new FuncSpec( RANDOM.class.getName() ) );
        new LessThanExpression( samplePlan, udf, expr );
        return buildFilterOp( loc, filter, alias, inputAlias, samplePlan );
    }
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        LogicalExpressionPlan filterPlan = new LogicalExpressionPlan();
        //  Generate a filter condition.
        LogicalExpression konst = new ConstantExpression( filterPlan, value);
        konst.setLocation( valLoc );
        UserFuncExpression udf = new UserFuncExpression( filterPlan, new FuncSpec( RANDOM.class.getName() ) );
        new LessThanExpression( filterPlan, udf, konst );
        LOFilter filter = new LOFilter( plan, true );
        return buildFilterOp( loc, filter, alias, inputAlias, filterPlan );
    }
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    String buildSampleOp(SourceLocation loc, LOFilter filter, String alias, String inputAlias,
            LogicalExpressionPlan samplePlan, LogicalExpression expr)
                    throws ParserValidationException {

        UserFuncExpression udf = new UserFuncExpression( samplePlan, new FuncSpec( RANDOM.class.getName() ) );
        new LessThanExpression( samplePlan, udf, expr );
        return buildFilterOp( loc, filter, alias, inputAlias, samplePlan );
    }
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        // Main Tests start here
        assertEquals( BinCondExpression.class, genExp.getSources().get(0).getClass() );
        BinCondExpression add = (BinCondExpression) genExp.getSources().get(0);
        assertEquals( LessThanExpression.class, add.getCondition().getClass() );
        LessThanExpression lessThan = (LessThanExpression) add.getCondition();
        assertEquals( ProjectExpression.class, lessThan.getLhs().getClass() );
        ProjectExpression prj1 = ((ProjectExpression)lessThan.getLhs());
        ProjectExpression prj2 = ((ProjectExpression)lessThan.getRhs());
        assertEquals( ls.getField(0).uid, prj1.getFieldSchema().uid );
        assertEquals( ProjectExpression.class, lessThan.getRhs().getClass() );
        assertEquals( ls.getField(1).uid, prj2.getFieldSchema().uid );
       
        assertEquals( ProjectExpression.class, add.getLhs().getClass() );
        ProjectExpression prj3 = ((ProjectExpression)add.getLhs());
        assertEquals( ls.getField(1).uid, prj3.getFieldSchema().uid );
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        ConstantExpression constant1 = new ConstantExpression(plan, new DateTime("1970-01-01T00:00:00.000Z"));
        ConstantExpression constant2 = new ConstantExpression(plan, new DateTime(1L));
        ConstantExpression constant3 = new ConstantExpression(plan, new DateTime(2L));
        ConstantExpression constant4 = new ConstantExpression(plan, new DataByteArray("1970-01-01T00:00:00.003Z"));

        LessThanExpression lt1 = new LessThanExpression(plan, constant1, constant2);
        LessThanEqualExpression lte1 = new LessThanEqualExpression(plan, constant1, constant2);
        GreaterThanExpression gt1 = new GreaterThanExpression(plan, constant3, constant4);
        GreaterThanEqualExpression gte1 = new GreaterThanEqualExpression(plan, constant3, constant4);
        EqualExpression eq1 = new EqualExpression(plan, constant0, constant1);
        NotEqualExpression neq1 = new NotEqualExpression(plan, constant0, constant2);

        CompilationMessageCollector collector = new CompilationMessageCollector();
        TypeCheckingExpVisitor expTypeChecker = new TypeCheckingExpVisitor(
                plan, collector, null);
        expTypeChecker.visit();

        plan.explain(System.out, "text", true);

        printMessageCollector(collector);
        // printTypeGraph(plan);

        if (collector.hasError()) {
            throw new Exception("Error during type checking");
        }

        // Induction check
        assertEquals(DataType.BOOLEAN, lt1.getType());
        assertEquals(DataType.BOOLEAN, lte1.getType());
        assertEquals(DataType.BOOLEAN, gt1.getType());
        assertEquals(DataType.BOOLEAN, gte1.getType());
        assertEquals(DataType.BOOLEAN, eq1.getType());
        assertEquals(DataType.BOOLEAN, neq1.getType());
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Related Classes of org.apache.pig.newplan.logical.expression.LessThanExpression

  • org.apache.pig.newplan.logical.LogicalExpPlanMigrationVistor
  • org.apache.pig.parser.LogicalPlanBuilder
  • org.apache.pig.parser.SourceLocation
  • org.apache.pig.test.TestNewPlanLogToPhyTranslationVisitor
  • org.apache.pig.test.TestTypeCheckingValidatorNewLP
  • org.apache.pig.impl.logicalLayer.FrontendException
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