| package edu.uci.ics.asterix.runtime.evaluators.common; |
| |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import edu.uci.ics.asterix.dataflow.data.nontagged.Coordinate; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ACircleSerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ADoubleSerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt16SerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.AInt32SerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ALineSerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APointSerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.APolygonSerializerDeserializer; |
| import edu.uci.ics.asterix.dataflow.data.nontagged.serde.ARectangleSerializerDeserializer; |
| import edu.uci.ics.asterix.om.types.ATypeTag; |
| import edu.uci.ics.asterix.om.types.EnumDeserializer; |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.NotImplementedException; |
| import edu.uci.ics.hyracks.algebricks.runtime.base.IEvaluator; |
| import edu.uci.ics.hyracks.algebricks.runtime.base.IEvaluatorFactory; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference; |
| |
| public class CreateMBREvalFactory implements IEvaluatorFactory { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private IEvaluatorFactory recordEvalFactory; |
| private IEvaluatorFactory dimensionEvalFactory; |
| private IEvaluatorFactory coordinateEvalFactory; |
| |
| public CreateMBREvalFactory(IEvaluatorFactory recordEvalFactory, IEvaluatorFactory dimensionEvalFactory, |
| IEvaluatorFactory coordinateEvalFactory) { |
| this.recordEvalFactory = recordEvalFactory; |
| this.dimensionEvalFactory = dimensionEvalFactory; |
| this.coordinateEvalFactory = coordinateEvalFactory; |
| } |
| |
| @Override |
| public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException { |
| return new IEvaluator() { |
| |
| private DataOutput out = output.getDataOutput(); |
| |
| private ArrayBackedValueStorage outInput0 = new ArrayBackedValueStorage(); |
| private ArrayBackedValueStorage outInput1 = new ArrayBackedValueStorage(); |
| private ArrayBackedValueStorage outInput2 = new ArrayBackedValueStorage(); |
| |
| private IEvaluator eval0 = recordEvalFactory.createEvaluator(outInput0); |
| private IEvaluator eval1 = dimensionEvalFactory.createEvaluator(outInput1); |
| private IEvaluator eval2 = coordinateEvalFactory.createEvaluator(outInput2); |
| |
| @Override |
| public void evaluate(IFrameTupleReference tuple) throws AlgebricksException { |
| outInput0.reset(); |
| eval0.evaluate(tuple); |
| outInput1.reset(); |
| eval1.evaluate(tuple); |
| outInput2.reset(); |
| eval2.evaluate(tuple); |
| |
| try { |
| |
| int dimension = AInt32SerializerDeserializer.getInt(outInput1.getBytes(), 1); |
| int coordinate = AInt32SerializerDeserializer.getInt(outInput2.getBytes(), 1); |
| double value; |
| if (dimension == 2) { |
| ATypeTag tag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(outInput0.getBytes()[0]); |
| switch (tag) { |
| case POINT: |
| switch (coordinate) { |
| case 0: // 0 is for min x, 1 is for min y, 2 |
| // for |
| // max x, and 3 for max y |
| case 2: { |
| double x = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| APointSerializerDeserializer.getCoordinateOffset(Coordinate.X)); |
| |
| value = x; |
| } |
| break; |
| case 1: |
| case 3: { |
| double y = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| APointSerializerDeserializer.getCoordinateOffset(Coordinate.Y)); |
| |
| value = y; |
| } |
| break; |
| default: { |
| throw new NotImplementedException(coordinate |
| + " is not a valid coordinate option"); |
| } |
| } |
| break; |
| case LINE: |
| value = Double.MAX_VALUE; |
| switch (coordinate) { |
| case 0: { |
| value = Double.MAX_VALUE; |
| double startX = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), ALineSerializerDeserializer |
| .getStartPointCoordinateOffset(Coordinate.X)); |
| double endX = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.X)); |
| |
| value = Math.min(Math.min(startX, endX), value); |
| } |
| break; |
| case 1: { |
| value = Double.MAX_VALUE; |
| double startY = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), ALineSerializerDeserializer |
| .getStartPointCoordinateOffset(Coordinate.Y)); |
| double endY = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.Y)); |
| |
| value = Math.min(Math.min(startY, endY), value); |
| } |
| break; |
| case 2: { |
| value = Double.MIN_VALUE; |
| double startX = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), ALineSerializerDeserializer |
| .getStartPointCoordinateOffset(Coordinate.X)); |
| double endX = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.X)); |
| |
| value = Math.max(Math.min(startX, endX), value); |
| } |
| break; |
| case 3: { |
| value = Double.MIN_VALUE; |
| double startY = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), ALineSerializerDeserializer |
| .getStartPointCoordinateOffset(Coordinate.Y)); |
| double endY = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ALineSerializerDeserializer.getEndPointCoordinateOffset(Coordinate.Y)); |
| |
| value = Math.max(Math.min(startY, endY), value); |
| } |
| break; |
| default: { |
| throw new NotImplementedException(coordinate |
| + " is not a valid coordinate option"); |
| } |
| } |
| break; |
| case POLYGON: |
| int numOfPoints = AInt16SerializerDeserializer.getShort(outInput0.getBytes(), |
| APolygonSerializerDeserializer.getNumberOfPointsOffset()); |
| switch (coordinate) { |
| case 0: { |
| value = Double.MAX_VALUE; |
| for (int i = 0; i < numOfPoints; i++) { |
| double x = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer |
| .getCoordinateOffset(i, Coordinate.X)); |
| value = Math.min(x, value); |
| } |
| } |
| break; |
| case 1: { |
| value = Double.MAX_VALUE; |
| for (int i = 0; i < numOfPoints; i++) { |
| double y = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer |
| .getCoordinateOffset(i, Coordinate.Y)); |
| value = Math.min(y, value); |
| } |
| } |
| break; |
| case 2: { |
| value = Double.MIN_VALUE; |
| for (int i = 0; i < numOfPoints; i++) { |
| double x = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer |
| .getCoordinateOffset(i, Coordinate.X)); |
| value = Math.max(x, value); |
| } |
| } |
| break; |
| case 3: { |
| value = Double.MIN_VALUE; |
| for (int i = 0; i < numOfPoints; i++) { |
| double y = ADoubleSerializerDeserializer |
| .getDouble(outInput0.getBytes(), APolygonSerializerDeserializer |
| .getCoordinateOffset(i, Coordinate.Y)); |
| value = Math.max(y, value); |
| } |
| } |
| break; |
| default: { |
| throw new NotImplementedException(coordinate |
| + " is not a valid coordinate option"); |
| } |
| } |
| break; |
| case CIRCLE: |
| switch (coordinate) { |
| case 0: { |
| double x = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.X)); |
| double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.X)); |
| |
| value = x - radius; |
| } |
| break; |
| case 1: { |
| double y = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.Y)); |
| double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.Y)); |
| |
| value = y - radius; |
| } |
| break; |
| case 2: { |
| double x = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.X)); |
| double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.X)); |
| |
| value = x + radius; |
| } |
| break; |
| case 3: { |
| double y = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.Y)); |
| double radius = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ACircleSerializerDeserializer |
| .getCenterPointCoordinateOffset(Coordinate.Y)); |
| |
| value = y + radius; |
| } |
| break; |
| default: { |
| throw new NotImplementedException(coordinate |
| + " is not a valid coordinate option"); |
| } |
| } |
| break; |
| case RECTANGLE: |
| value = Double.MAX_VALUE; |
| switch (coordinate) { |
| case 0: { |
| value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ARectangleSerializerDeserializer |
| .getBottomLeftCoordinateOffset(Coordinate.X)); |
| } |
| break; |
| case 1: { |
| value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ARectangleSerializerDeserializer |
| .getBottomLeftCoordinateOffset(Coordinate.Y)); |
| } |
| break; |
| case 2: { |
| value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ARectangleSerializerDeserializer |
| .getUpperRightCoordinateOffset(Coordinate.X)); |
| } |
| break; |
| case 3: { |
| value = ADoubleSerializerDeserializer.getDouble(outInput0.getBytes(), |
| ARectangleSerializerDeserializer |
| .getUpperRightCoordinateOffset(Coordinate.Y)); |
| } |
| break; |
| default: { |
| throw new NotImplementedException(coordinate |
| + " is not a valid coordinate option"); |
| } |
| } |
| break; |
| default: |
| throw new NotImplementedException( |
| "create-mbr is only implemented for POINT, LINE, POLYGON, CIRCLE and RECTANGLE."); |
| |
| } |
| } else { |
| throw new NotImplementedException(dimension + "D is not supported"); |
| } |
| out.writeByte(ATypeTag.DOUBLE.serialize()); |
| out.writeDouble(value); |
| } catch (HyracksDataException hde) { |
| throw new AlgebricksException(hde); |
| } catch (IOException e) { |
| throw new AlgebricksException(e); |
| } |
| } |
| }; |
| } |
| } |
