Examples with SqlNullable io.trino.spi.function.SqlNullable used on opensource projects

Example 41 with SqlNullable

use of io.trino.spi.function.SqlNullable in project trino by trinodb.

the class GeoFunctions method stGeometryN.

@SqlNullable
@Description("Returns the geometry element at the specified index (indices started with 1)")
@ScalarFunction("ST_GeometryN")
@SqlType(GEOMETRY_TYPE_NAME)
public static Slice stGeometryN(@SqlType(GEOMETRY_TYPE_NAME) Slice input, @SqlType(INTEGER) long index) {
    OGCGeometry geometry = deserialize(input);
    if (geometry.isEmpty()) {
        return null;
    }
    GeometryType type = GeometryType.getForEsriGeometryType(geometry.geometryType());
    if (!type.isMultitype()) {
        if (index == 1) {
            return input;
        }
        return null;
    }
    OGCGeometryCollection geometryCollection = ((OGCGeometryCollection) geometry);
    if (index < 1 || index > geometryCollection.numGeometries()) {
        return null;
    }
    OGCGeometry ogcGeometry = geometryCollection.geometryN((int) index - 1);
    return serialize(ogcGeometry);
}

Example 42 with SqlNullable

use of io.trino.spi.function.SqlNullable in project trino by trinodb.

the class GeoFunctions method stTouches.

@SqlNullable
@Description("Returns TRUE if the geometries have at least one point in common, but their interiors do not intersect")
@ScalarFunction("ST_Touches")
@SqlType(BOOLEAN)
public static Boolean stTouches(@SqlType(GEOMETRY_TYPE_NAME) Slice left, @SqlType(GEOMETRY_TYPE_NAME) Slice right) {
    if (!envelopes(left, right, Envelope::intersect)) {
        return false;
    }
    OGCGeometry leftGeometry = deserialize(left);
    OGCGeometry rightGeometry = deserialize(right);
    verifySameSpatialReference(leftGeometry, rightGeometry);
    return leftGeometry.touches(rightGeometry);
}

Example 43 with SqlNullable

use of io.trino.spi.function.SqlNullable in project trino by trinodb.

the class GeoFunctions method stPointN.

@SqlNullable
@Description("Returns the vertex of a linestring at the specified index (indices started with 1) ")
@ScalarFunction("ST_PointN")
@SqlType(GEOMETRY_TYPE_NAME)
public static Slice stPointN(@SqlType(GEOMETRY_TYPE_NAME) Slice input, @SqlType(INTEGER) long index) {
    OGCGeometry geometry = deserialize(input);
    validateType("ST_PointN", geometry, EnumSet.of(LINE_STRING));
    OGCLineString linestring = (OGCLineString) geometry;
    if (index < 1 || index > linestring.numPoints()) {
        return null;
    }
    return serialize(linestring.pointN(toIntExact(index) - 1));
}

Example 44 with SqlNullable

use of io.trino.spi.function.SqlNullable in project trino by trinodb.

the class GeoFunctions method lineLocatePoint.

@SqlNullable
@Description("Returns a float between 0 and 1 representing the location of the closest point on the LineString to the given Point, as a fraction of total 2d line length.")
@ScalarFunction("line_locate_point")
@SqlType(DOUBLE)
public static Double lineLocatePoint(@SqlType(GEOMETRY_TYPE_NAME) Slice lineSlice, @SqlType(GEOMETRY_TYPE_NAME) Slice pointSlice) {
    Geometry line = JtsGeometrySerde.deserialize(lineSlice);
    Geometry point = JtsGeometrySerde.deserialize(pointSlice);
    if (line.isEmpty() || point.isEmpty()) {
        return null;
    }
    GeometryType lineType = GeometryType.getForJtsGeometryType(line.getGeometryType());
    if (lineType != GeometryType.LINE_STRING && lineType != GeometryType.MULTI_LINE_STRING) {
        throw new TrinoException(INVALID_FUNCTION_ARGUMENT, format("First argument to line_locate_point must be a LineString or a MultiLineString. Got: %s", line.getGeometryType()));
    }
    GeometryType pointType = GeometryType.getForJtsGeometryType(point.getGeometryType());
    if (pointType != GeometryType.POINT) {
        throw new TrinoException(INVALID_FUNCTION_ARGUMENT, format("Second argument to line_locate_point must be a Point. Got: %s", point.getGeometryType()));
    }
    return new LengthIndexedLine(line).indexOf(point.getCoordinate()) / line.getLength();
}

Example 45 with SqlNullable

use of io.trino.spi.function.SqlNullable in project trino by trinodb.

the class GeoFunctions method stDistance.

@SqlNullable
@Description("Returns the 2-dimensional cartesian minimum distance (based on spatial ref) between two geometries in projected units")
@ScalarFunction("ST_Distance")
@SqlType(DOUBLE)
public static Double stDistance(@SqlType(GEOMETRY_TYPE_NAME) Slice left, @SqlType(GEOMETRY_TYPE_NAME) Slice right) {
    OGCGeometry leftGeometry = deserialize(left);
    OGCGeometry rightGeometry = deserialize(right);
    verifySameSpatialReference(leftGeometry, rightGeometry);
    return leftGeometry.isEmpty() || rightGeometry.isEmpty() ? null : leftGeometry.distance(rightGeometry);
}