Package org.apache.pig.impl.plan

Examples of org.apache.pig.impl.plan.ProjectionMap.changes()

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                            String msg = "Error while fixing projections. Projection map of node to be replaced is null.";
                            throw new VisitorException(msg, errCode,
                                    PigException.BUG);
                        }

                        if (!oldNodeMap.changes()) {
                            // no change required
                            return;
                        }

                        MultiMap<Integer, ProjectionMap.Column> oldNodeMappedFields = oldNodeMap
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                            String msg = "Error during fixing projections. Projection map of new predecessor is null.";
                            throw new VisitorException(msg, errCode,
                                    PigException.BUG);
                        }
                       
                        if (!newNodeMap.changes()) {
                            // no change required
                            return;
                        }

                        MultiMap<Integer, ProjectionMap.Column> newNodeMappedFields = newNodeMap
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        LogicalPlan lp = planTester.buildPlan(query);
       
        //check that the load projection map is null
        LOLoad load = (LOLoad) lp.getRoots().get(0);
        ProjectionMap loadProjectionMap = load.getProjectionMap();
        assertTrue(loadProjectionMap.changes() == false);
       
        //check that the foreach projection map has null mappedFields
        //and null removed fields since the input schema is null
        LOForEach foreach = (LOForEach)lp.getLeaves().get(0);
        ProjectionMap foreachProjectionMap = foreach.getProjectionMap();
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        //check that the foreach projection map has null mappedFields
        //and null removed fields since the input schema is null
        LOForEach foreach = (LOForEach)lp.getLeaves().get(0);
        ProjectionMap foreachProjectionMap = foreach.getProjectionMap();
        assertTrue(foreachProjectionMap.changes() == true);

        MultiMap<Integer, ProjectionMap.Column> foreachMapFields = foreachProjectionMap.getMappedFields();
        assertTrue(foreachMapFields != null);
       
        List<ProjectionMap.Column> mapValues = (ArrayList<ProjectionMap.Column>)foreachMapFields.get(0);
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        LogicalPlan lp = planTester.buildPlan(query);
       
        //check that the load projection map is null
        LOLoad load = (LOLoad) lp.getRoots().get(0);
        ProjectionMap loadProjectionMap = load.getProjectionMap();
        assertTrue(loadProjectionMap.changes() == false);
       
        //check that the foreach projection map has null mappedFields
        //and null removed fields since the input schema is null
        LOForEach foreach = (LOForEach)lp.getLeaves().get(0);
        ProjectionMap foreachProjectionMap = foreach.getProjectionMap();
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        //check that the foreach projection map has null mappedFields
        //and null removed fields since the input schema is null
        LOForEach foreach = (LOForEach)lp.getLeaves().get(0);
        ProjectionMap foreachProjectionMap = foreach.getProjectionMap();
        assertTrue(foreachProjectionMap.changes() == true);
       
        MultiMap<Integer, ProjectionMap.Column> foreachMapFields = foreachProjectionMap.getMappedFields();
        assertTrue(foreachMapFields != null);
       
        List<ProjectionMap.Column> mapValues = (ArrayList<ProjectionMap.Column>)foreachMapFields.get(0);
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        LogicalPlan lp = planTester.buildPlan(query);
       
        //check that the loads' projection map is null
        LOLoad loada = (LOLoad) lp.getRoots().get(0);
        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);
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        ProjectionMap loadaProjectionMap = loada.getProjectionMap();
        assertTrue(loadaProjectionMap.changes() == false);
       
        LOLoad loadb = (LOLoad) lp.getRoots().get(1);
        ProjectionMap loadbProjectionMap = loadb.getProjectionMap();
        assertTrue(loadbProjectionMap.changes() == false);

        //check cogroup projection map
        LOCogroup cogroup = (LOCogroup)lp.getSuccessors(loada).get(0);
        ProjectionMap cogroupProjectionMap = cogroup.getProjectionMap();
        assertTrue(cogroupProjectionMap.changes() == true);
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        assertTrue(loadbProjectionMap.changes() == false);

        //check cogroup projection map
        LOCogroup cogroup = (LOCogroup)lp.getSuccessors(loada).get(0);
        ProjectionMap cogroupProjectionMap = cogroup.getProjectionMap();
        assertTrue(cogroupProjectionMap.changes() == true);
       
        MultiMap<Integer, ProjectionMap.Column> cogroupMapFields = cogroupProjectionMap.getMappedFields();
        assertTrue(cogroupMapFields != null);
       
        List<ProjectionMap.Column> mapValues = (ArrayList<ProjectionMap.Column>)cogroupMapFields.get(0);
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        assertTrue(cogroupAddedFields.get(1) == 2);
       
        //check that the foreach projection map has null mappedFields
        LOForEach foreach = (LOForEach)lp.getLeaves().get(0);
        ProjectionMap foreachProjectionMap = foreach.getProjectionMap();
        assertTrue(foreachProjectionMap.changes() == true);
        assertTrue(foreachProjectionMap.getMappedFields() == null);

        //check that removed fields has all the columns from the input cogroup
        List<Pair<Integer, Integer>> foreachRemovedFields = foreachProjectionMap.getRemovedFields();
        assertTrue(foreachProjectionMap.getRemovedFields().size() == 3);
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