org.geolatte.geom.codec.HANAWkbDialect Maven / Gradle / Ivy

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package org.geolatte.geom.codec;

import org.geolatte.geom.*;

class HANAWkbDialect extends WkbDialect {

    final public static HANAWkbDialect INSTANCE = new HANAWkbDialect();

    private HANAWkbDialect() {
    }

    @Override
    boolean emptyPointAsNaN() {
        return false;
    }

    @Override
    GeometryType parseType(long tpe) {
        return super.parseType((tpe & 0xFFFF) % 100);
    }

    protected  int calculateSize(Geometry
 geom, boolean includeSrid) {
        int size = 1 + ByteBuffer.UINT_SIZE; //size for order byte + type field
        if (includeSrid) {
            size += 4;
        }

        if (geom.isEmpty()) return size + ByteBuffer.UINT_SIZE;
        if (geom instanceof AbstractGeometryCollection) {
            size += sizeOfGeometryCollection((AbstractGeometryCollection) geom);
        } else if (geom instanceof Polygon) {
            size += getPolygonSize((Polygon
) geom);
        } else if (geom instanceof Point) {
            size += getPositionSize(geom);
        } else {
            size += ByteBuffer.UINT_SIZE; //to hold number of points
            size += getPositionSize(geom) * geom.getNumPositions();
        }
        return size;
    }

    @Override
    
 BaseWkbVisitor
 mkVisitor(Geometry
 geom, ByteOrder bo) {
        return new HANAWkbVisitor(mkByteBuffer(geom, bo), this);
    }
}