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/*
* 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.hadoop.hive.ql.udf.esri;
import com.esri.core.geometry.Envelope;
import com.esri.core.geometry.Geometry;
import com.esri.core.geometry.ogc.OGCGeometry;
import org.apache.hadoop.hive.ql.exec.Description;
import org.apache.hadoop.io.BooleanWritable;
import org.apache.hadoop.io.BytesWritable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Description(name = "ST_EnvIntersects",
value = "_FUNC_(ST_Geometry1, ST_Geometry2) - return true if the envelopes of ST_Geometry1 and ST_Geometry2 intersect",
extended = "Example:\n"
+ "SELECT _FUNC_(ST_LineString(0,0, 1,1), ST_LineString(1,3, 2,2)) from src LIMIT 1; -- return false\n"
+ "SELECT _FUNC_(ST_LineString(0,0, 2,2), ST_LineString(1,0, 3,2)) from src LIMIT 1; -- return true\n")
//@HivePdkUnitTests(
// cases = {
// @HivePdkUnitTest(
// query = "select ST_EnvIntersects(ST_LineString(0,0, 1,1), ST_LineString(1,3, 2,2)) from onerow",
// result = "false"
// ),
// @HivePdkUnitTest(
// query = "select ST_EnvIntersects(ST_LineString(0,0, 2,2), ST_LineString(1,0, 3,2)) from onerow",
// result = "true"
// ),
// @HivePdkUnitTest(
// query = "select ST_EnvIntersects(null, ST_LineString(0,0, 1,1)) from onerow",
// result = "null"
// )
// }
//)
public class ST_EnvIntersects extends ST_Geometry {
final BooleanWritable resultBoolean = new BooleanWritable();
static final Logger LOG = LoggerFactory.getLogger(ST_EnvIntersects.class.getName());
public BooleanWritable evaluate(BytesWritable geometryref1, BytesWritable geometryref2) {
if (geometryref1 == null || geometryref2 == null || geometryref1.getLength() == 0
|| geometryref2.getLength() == 0) {
LogUtils.Log_ArgumentsNull(LOG);
return null;
}
if (!GeometryUtils.compareSpatialReferences(geometryref1, geometryref2)) {
LogUtils.Log_SRIDMismatch(LOG, geometryref1, geometryref2);
return null;
}
OGCGeometry ogcGeom1 = GeometryUtils.geometryFromEsriShape(geometryref1);
OGCGeometry ogcGeom2 = GeometryUtils.geometryFromEsriShape(geometryref2);
if (ogcGeom1 == null || ogcGeom2 == null) {
LogUtils.Log_ArgumentsNull(LOG);
return null;
}
Geometry geometry1 = ogcGeom1.getEsriGeometry();
Geometry geometry2 = ogcGeom2.getEsriGeometry();
Envelope env1 = new Envelope(), env2 = new Envelope();
geometry1.queryEnvelope(env1);
geometry2.queryEnvelope(env2);
resultBoolean.set(env1.isIntersecting(env2));
return resultBoolean;
}
}
