content: /*
   * 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.asterix.geo.evaluators.functions;
  
  import java.io.DataOutput;
  import java.io.IOException;
  
  import org.apache.asterix.dataflow.data.nontagged.serde.AGeometrySerializerDeserializer;
  import org.apache.asterix.om.functions.BuiltinFunctions;
  import org.apache.asterix.om.functions.IFunctionDescriptorFactory;
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.asterix.runtime.exceptions.InvalidDataFormatException;
  import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
  import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory;
  import org.apache.hyracks.api.context.IEvaluatorContext;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  import org.apache.hyracks.data.std.api.IPointable;
  import org.apache.hyracks.data.std.primitive.VoidPointable;
  import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
  import org.apache.hyracks.dataflow.common.data.accessors.IFrameTupleReference;
  import org.locationtech.jts.geom.Coordinate;
  import org.locationtech.jts.geom.GeometryFactory;
  import org.locationtech.jts.geom.Polygon;
  
  public class STMakeEnvelopeDescriptorSRID extends AbstractGetValDescriptor {
  
      public static final IFunctionDescriptorFactory FACTORY = STMakeEnvelopeDescriptorSRID::new;
  
      private static final long serialVersionUID = 1L;
  
      @Override
      public FunctionIdentifier getIdentifier() {
          return BuiltinFunctions.ST_MAKE_ENVELOPE;
      }
  
      @Override
      public IScalarEvaluatorFactory createEvaluatorFactory(final IScalarEvaluatorFactory[] args) {
          return new IScalarEvaluatorFactory() {
              private static final long serialVersionUID = 1L;
  
              @Override
              public IScalarEvaluator createScalarEvaluator(IEvaluatorContext ctx) throws HyracksDataException {
  
                  return new STMakeEnvelopeEvaluator(args, ctx);
              }
          };
      }
  
      private class STMakeEnvelopeEvaluator implements IScalarEvaluator {
  
          private ArrayBackedValueStorage resultStorage;
          private DataOutput out;
          private IPointable inputArg0;
          private IScalarEvaluator eval0;
          private Coordinate coordinate0;
          private IPointable inputArg1;
          private IScalarEvaluator eval1;
          private Coordinate coordinate1;
          private IPointable inputArg2;
          private IScalarEvaluator eval2;
          private Coordinate coordinate2;
          private IPointable inputArg3;
          private IScalarEvaluator eval3;
          private Coordinate coordinate3;
          private IPointable inputArg4;
          private IScalarEvaluator eval4;
          private final GeometryFactory geometryFactory;
  
          public STMakeEnvelopeEvaluator(IScalarEvaluatorFactory[] args, IEvaluatorContext ctx)
                  throws HyracksDataException {
              resultStorage = new ArrayBackedValueStorage();
              out = resultStorage.getDataOutput();
              inputArg0 = new VoidPointable();
              eval0 = args[0].createScalarEvaluator(ctx);
              inputArg1 = new VoidPointable();
              eval1 = args[1].createScalarEvaluator(ctx);
              inputArg2 = new VoidPointable();
              eval2 = args[2].createScalarEvaluator(ctx);
              inputArg3 = new VoidPointable();
              eval3 = args[3].createScalarEvaluator(ctx);
              inputArg4 = new VoidPointable();
              eval4 = args[4].createScalarEvaluator(ctx);
              geometryFactory = new GeometryFactory();
              coordinate0 = new Coordinate();
              coordinate1 = new Coordinate();
              coordinate2 = new Coordinate();
              coordinate3 = new Coordinate();
          }
  
          @Override
          public void evaluate(IFrameTupleReference tuple, IPointable result) throws HyracksDataException {
  
              resultStorage.reset();
  
              eval0.evaluate(tuple, inputArg0);
              byte[] data0 = inputArg0.getByteArray();
              int offset0 = inputArg0.getStartOffset();
  
              eval1.evaluate(tuple, inputArg1);
              byte[] data1 = inputArg1.getByteArray();
              int offset1 = inputArg1.getStartOffset();
  
              eval2.evaluate(tuple, inputArg2);
              byte[] data2 = inputArg2.getByteArray();
              int offset2 = inputArg2.getStartOffset();
  
              eval3.evaluate(tuple, inputArg3);
              byte[] data3 = inputArg3.getByteArray();
              int offset3 = inputArg3.getStartOffset();
  
              //Spatial Reference System Identifier (SRID), currently not used.
              eval4.evaluate(tuple, inputArg4);
              byte[] data4 = inputArg4.getByteArray();
              int offset4 = inputArg4.getStartOffset();
  
              try {
                  double xmin = getVal(data0, offset0);
                  double ymin = getVal(data1, offset1);
                  double xmax = getVal(data2, offset2);
                  double ymax = getVal(data3, offset3);
                  coordinate0.setX(xmin);
                  coordinate0.setY(ymin);
                  coordinate1.setX(xmin);
                  coordinate1.setY(ymax);
                  coordinate2.setX(xmax);
                  coordinate2.setY(ymax);
                  coordinate3.setX(xmax);
                  coordinate3.setY(ymin);
  
                  Coordinate[] coords =
                          new Coordinate[] { coordinate0, coordinate1, coordinate2, coordinate3, coordinate0 };
                  Polygon polygon = geometryFactory.createPolygon(coords);
                  out.writeByte(ATypeTag.SERIALIZED_GEOMETRY_TYPE_TAG);
                  AGeometrySerializerDeserializer.INSTANCE.serialize(polygon, out);
                  result.set(resultStorage);
              } catch (IOException e) {
                  throw new InvalidDataFormatException(sourceLoc, getIdentifier(), e,
                          ATypeTag.SERIALIZED_GEOMETRY_TYPE_TAG);
              }
  
          }
      }
  }
  