question: protected OMGraphic makeEsriGraphic ( LittleEndianInputStream iStream , DrawingAttributes drawingAttributes , Object pointRepresentation , ReadByteTracker byteTracker ) throws IOException , FormatException { EsriGraphic eg = null ; int shapeType = iStream . readLEInt ( ) ; byteTracker . addRead ( 4 ) ; if ( verbose ) { logger . info ( "reading shape type: " + shapeType + ", " + ShapeUtils . getStringForType ( shapeType ) ) ; } switch ( shapeType ) { case SHAPE_TYPE_NULL : break ; case SHAPE_TYPE_POINT : eg = createPointGraphic ( iStream , pointRepresentation , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POLYLINE : eg = createPolylineGraphic ( iStream , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POLYGON : eg = createPolygonGraphic ( iStream , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_MULTIPOINT : eg = createMultiPointGraphic ( iStream , pointRepresentation , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POINTZ : eg = createPointZGraphic ( iStream , pointRepresentation , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POLYLINEZ : eg = createPolylineZGraphic ( iStream , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POLYGONZ : eg = createPolygonZGraphic ( iStream , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_MULTIPOINTZ : eg = createMultiPointZGraphic ( iStream , pointRepresentation , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POINTM : eg = createPointMGraphic ( iStream , pointRepresentation , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POLYLINEM : eg = createPolylineMGraphic ( iStream , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_POLYGONM : eg = createPolygonMGraphic ( iStream , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_MULTIPOINTM : eg = createMultiPointMGraphic ( iStream , pointRepresentation , drawingAttributes , byteTracker ) ; break ; case SHAPE_TYPE_MULTIPATCH : default : } return ( OMGraphic ) eg ; }
target:  Create OMGraphic from next record