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

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

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                    Map<Operator, PhysicalOperator> logToPhyMap = new HashMap<Operator, PhysicalOperator>();
                    PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(expLogicalPlan);

                    // Save the old walker and use childWalker as current Walker
                    pushWalker(childWalker);
                    ExpToPhyTranslationVisitor expTranslationVisitor = new
                            ExpToPhyTranslationVisitor(expLogicalPlan,
                                    childWalker, currentOp, expPhysicalPlan, logToPhyMap);
                    expTranslationVisitor.visit();
                    popWalker();
                    PhysicalOperator root = expPhysicalPlan.getLeaves().get(0);
                    try {
                        UDFContext.getUDFContext().addJobConf(ConfigurationUtil.toConfiguration(pc.getProperties(), true));
                        PigHadoopLogger pigHadoopLogger = PigHadoopLogger.getInstance();
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        //                .spawnChildWalker(filter.getFilterPlan());
        PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(filter.getFilterPlan());
        pushWalker(childWalker);
        //currentWalker.walk(this);
        currentWalker.walk(
                new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                        childWalker, filter, currentPlan, logToPhyMap ) );
        popWalker();

        poFilter.setPlan(currentPlan);
        currentPlan = currentPlans.pop();
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        currentPlans.push(currentPlan);
        for (LogicalExpressionPlan plan : logPlans) {
            currentPlan = new PhysicalPlan();
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(plan);
            pushWalker(childWalker);
            childWalker.walk(new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                    childWalker, sort, currentPlan, logToPhyMap));
            sortPlans.add(currentPlan);
            popWalker();
        }
        currentPlan = currentPlans.pop();
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                currentPlans.push(currentPlan);
                for (LogicalExpressionPlan plan : logPlans) {
                    currentPlan = new PhysicalPlan();
                    PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(plan);
                    pushWalker(childWalker);
                    childWalker.walk(new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                            childWalker, loRank, currentPlan, logToPhyMap));
                    rankPlans.add(currentPlan);
                    popWalker();
                }
                currentPlan = currentPlans.pop();
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        for (int i=0; i<exps.size(); i++) {
            currentPlan = new PhysicalPlan();
            // translate the expression plan
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(exps.get(i));
            pushWalker(childWalker);
            childWalker.walk(new ExpToPhyTranslationVisitor(exps.get(i),
                    childWalker, gen, currentPlan, logToPhyMap));
            popWalker();

            List<Operator> leaves = exps.get(i).getSinks();
            for(Operator l: leaves) {
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            // Save the old walker and use childWalker as current Walker
            pushWalker(childWalker);

            // We create a new ExpToPhyTranslationVisitor to walk the ExpressionPlan
            currentWalker.walk(
                    new ExpToPhyTranslationVisitor(
                            currentWalker.getPlan(),
                            childWalker, loj, currentPlan, logToPhyMap) );

            exprPlans.add(currentPlan);
            popWalker();
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            // add expression plan to POLimit
            currentPlans.push(currentPlan);
            currentPlan = new PhysicalPlan();
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(loLimit.getLimitPlan());
            pushWalker(childWalker);
            currentWalker.walk(new ExpToPhyTranslationVisitor(currentWalker.getPlan(), childWalker, loLimit,
                    currentPlan, logToPhyMap));
            poLimit.setLimitPlan(currentPlan);
            popWalker();
            currentPlan = currentPlans.pop();
        }
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//                .spawnChildWalker(filter.getFilterPlan());
        PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(loSplitOutput.getFilterPlan());
        pushWalker(childWalker);
        //currentWalker.walk(this);
        currentWalker.walk(
                new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                        childWalker, loSplitOutput, currentPlan, logToPhyMap) );
        popWalker();

        poFilter.setPlan(currentPlan);
        currentPlan = currentPlans.pop();
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            // add expression plan to POLimit
            currentPlans.push(currentPlan);
            currentPlan = new PhysicalPlan();
            PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(loLimit.getLimitPlan());
            pushWalker(childWalker);
            currentWalker.walk(new ExpToPhyTranslationVisitor(currentWalker.getPlan(), childWalker, loLimit,
                    currentPlan, logToPhyMap));
            poLimit.setLimitPlan(currentPlan);
            popWalker();
            currentPlan = currentPlans.pop();
        }
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//                .spawnChildWalker(filter.getFilterPlan());
        PlanWalker childWalker = new ReverseDependencyOrderWalkerWOSeenChk(loSplitOutput.getFilterPlan());
        pushWalker(childWalker);
        //currentWalker.walk(this);
        currentWalker.walk(
                new ExpToPhyTranslationVisitor( currentWalker.getPlan(),
                        childWalker, loSplitOutput, currentPlan, logToPhyMap) );
        popWalker();

        poFilter.setPlan(currentPlan);
        currentPlan = currentPlans.pop();
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Related Classes of org.apache.pig.newplan.logical.expression.ExpToPhyTranslationVisitor

  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.Add
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryComparisonOperator
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryExpressionOperator
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ConstantExpression
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.Divide
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.EqualToExpr
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.GreaterThanExpr
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.GTOrEqualToExpr
  • org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.LessThanExpr
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