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From sohami <...@git.apache.org>
Subject [GitHub] drill pull request #785: DRILL-5323: Test tools for row sets
Date Thu, 30 Mar 2017 01:32:25 GMT
Github user sohami commented on a diff in the pull request:

    https://github.com/apache/drill/pull/785#discussion_r108808598
  
    --- Diff: exec/java-exec/src/test/java/org/apache/drill/test/rowSet/AbstractSingleRowSet.java
---
    @@ -0,0 +1,158 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF licenses this file
    + * to you under the Apache License, Version 2.0 (the
    + * "License"); you may not use this file except in compliance
    + * with the License.  You may obtain a copy of the License at
    + *
    + * http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +package org.apache.drill.test.rowSet;
    +
    +import org.apache.drill.common.types.TypeProtos.MajorType;
    +import org.apache.drill.common.types.TypeProtos.MinorType;
    +import org.apache.drill.exec.expr.TypeHelper;
    +import org.apache.drill.exec.memory.BufferAllocator;
    +import org.apache.drill.exec.physical.impl.spill.RecordBatchSizer;
    +import org.apache.drill.exec.record.BatchSchema;
    +import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode;
    +import org.apache.drill.exec.record.VectorContainer;
    +import org.apache.drill.exec.record.VectorWrapper;
    +import org.apache.drill.exec.vector.ValueVector;
    +import org.apache.drill.exec.vector.complex.MapVector;
    +import org.apache.drill.test.rowSet.RowSet.SingleRowSet;
    +import org.apache.drill.test.rowSet.RowSetSchema.LogicalColumn;
    +import org.apache.drill.test.rowSet.RowSetSchema.PhysicalSchema;
    +
    +public abstract class AbstractSingleRowSet extends AbstractRowSet implements SingleRowSet
{
    +
    +  public abstract static class StructureBuilder {
    +    protected final PhysicalSchema schema;
    +    protected final BufferAllocator allocator;
    +    protected final ValueVector[] valueVectors;
    +    protected final MapVector[] mapVectors;
    +    protected int vectorIndex;
    +    protected int mapIndex;
    +
    +    public StructureBuilder(BufferAllocator allocator, RowSetSchema schema) {
    +      this.allocator = allocator;
    +      this.schema = schema.physical();
    +      valueVectors = new ValueVector[schema.access().count()];
    +      if (schema.access().mapCount() == 0) {
    +        mapVectors = null;
    +      } else {
    +        mapVectors = new MapVector[schema.access().mapCount()];
    +      }
    +    }
    +  }
    +
    +  public static class VectorBuilder extends StructureBuilder {
    +
    +    public VectorBuilder(BufferAllocator allocator, RowSetSchema schema) {
    +      super(allocator, schema);
    +    }
    +
    +    public ValueVector[] buildContainer(VectorContainer container) {
    +      for (int i = 0; i < schema.count(); i++) {
    +        LogicalColumn colSchema = schema.column(i);
    +        @SuppressWarnings("resource")
    +        ValueVector v = TypeHelper.getNewVector(colSchema.field, allocator, null);
    +        container.add(v);
    +        if (colSchema.field.getType().getMinorType() == MinorType.MAP) {
    +          MapVector mv = (MapVector) v;
    +          mapVectors[mapIndex++] = mv;
    +          buildMap(mv, colSchema.mapSchema);
    +        } else {
    +          valueVectors[vectorIndex++] = v;
    +        }
    +      }
    +      container.buildSchema(SelectionVectorMode.NONE);
    +      return valueVectors;
    +    }
    +
    +    private void buildMap(MapVector mapVector, PhysicalSchema mapSchema) {
    +      for (int i = 0; i < mapSchema.count(); i++) {
    +        LogicalColumn colSchema = mapSchema.column(i);
    +        MajorType type = colSchema.field.getType();
    +        Class<? extends ValueVector> vectorClass = TypeHelper.getValueVectorClass(type.getMinorType(),
type.getMode());
    +        @SuppressWarnings("resource")
    +        ValueVector v = mapVector.addOrGet(colSchema.field.getName(), type, vectorClass);
    +        if (type.getMinorType() == MinorType.MAP) {
    +          MapVector mv = (MapVector) v;
    +          mapVectors[mapIndex++] = mv;
    +          buildMap(mv, colSchema.mapSchema);
    +        } else {
    +          valueVectors[vectorIndex++] = v;
    +        }
    +      }
    +    }
    +  }
    +
    +  public static class VectorMapper extends StructureBuilder {
    +
    +    public VectorMapper(BufferAllocator allocator, RowSetSchema schema) {
    +      super(allocator, schema);
    +    }
    +
    +    public ValueVector[] mapContainer(VectorContainer container) {
    +      for (VectorWrapper<?> w : container) {
    +        @SuppressWarnings("resource")
    +        ValueVector v = w.getValueVector();
    +        if (v.getField().getType().getMinorType() == MinorType.MAP) {
    +          MapVector mv = (MapVector) v;
    +          mapVectors[mapIndex++] = mv;
    +          buildMap(mv);
    +        } else {
    +          valueVectors[vectorIndex++] = v;
    +        }
    +      }
    +      return valueVectors;
    +    }
    +
    +    private void buildMap(MapVector mapVector) {
    +      for (ValueVector v : mapVector) {
    +        if (v.getField().getType().getMinorType() == MinorType.MAP) {
    +          MapVector mv = (MapVector) v;
    +          mapVectors[mapIndex++] = mv;
    +          buildMap(mv);
    +        } else {
    +          valueVectors[vectorIndex++] = v;
    +        }
    +      }
    +    }
    +  }
    +
    +  protected final ValueVector[] valueVectors;
    +
    +  public AbstractSingleRowSet(BufferAllocator allocator, BatchSchema schema) {
    +    super(allocator, schema, new VectorContainer());
    +    valueVectors = new VectorBuilder(allocator, super.schema).buildContainer(container);
    +  }
    +
    +  public AbstractSingleRowSet(BufferAllocator allocator, VectorContainer container) {
    +    super(allocator, container.getSchema(), container);
    +    valueVectors = new VectorMapper(allocator, super.schema).mapContainer(container);
    +  }
    +
    +  public AbstractSingleRowSet(AbstractSingleRowSet rowSet) {
    +    super(rowSet.allocator, rowSet.schema.batch(), rowSet.container);
    +    valueVectors = rowSet.valueVectors;
    +  }
    +
    +  @Override
    +  public ValueVector[] vectors() { return valueVectors; }
    +
    +  @Override
    +  public int getSize() {
    +    RecordBatchSizer sizer = new RecordBatchSizer(container);
    +    return sizer.actualSize();
    --- End diff --
    
    This method internally access the container's recordCount but while building the container
I don't see we are setting the RecordCount explicitly by calling setRecordCount on it. Neither
it looks like while adding valueVector inside the container, that count is maintained. Shouldn't
we set the recordCount ?


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