lwgeom_to_marc21()

lwvarlena_t * lwgeom_to_marc21	(	const LWGEOM *	geom,
		const char *	format
	)

Definition at line 96 of file lwgeom_out_marc21.c.

                                                         {
 
        stringbuffer_t *sb;
        GBOX box;
        lwvarlena_t *v;
 
        POSTGIS_DEBUGF(2, "lwgeom_to_marc21 called: %s with format %s ", lwtype_name(lwgeom_get_type(geom)), format);
 
        if (lwgeom_is_empty(geom))      return NULL;
        if (is_format_valid(format)==LW_FALSE) lwerror("invalid output format: \"%s\"", format);
 
        POSTGIS_DEBUG(3, "creating stringbuffer");
        sb = stringbuffer_create();
 
        POSTGIS_DEBUGF(3, "opening MARC21/XML record: %s", lwtype_name(lwgeom_get_type(geom)));
 
        if (stringbuffer_aprintf(sb, "<record xmlns=\"%s\">", MARC21_NS) < 0) {
 
                stringbuffer_destroy(sb);
                return NULL;
 
        }
 
 
        if (lwgeom_is_collection(geom)) {
 
                LWCOLLECTION *coll = (LWCOLLECTION*) geom;
 
                POSTGIS_DEBUGF(3, "  collection detected: %s", lwtype_name(lwgeom_get_type(geom)));
 
                for (uint32_t i = 0; i < coll->ngeoms; i++) {
 
                        if (lwgeom_calculate_gbox(coll->geoms[i], &box) == LW_FAILURE) {
 
                                stringbuffer_destroy(sb);
                                lwpgerror("failed to calculate bbox for a geometry in the collection: %s", lwtype_name(lwgeom_get_type(coll->geoms[i])));
 
                        }
 
                        if (gbox_to_marc21_sb(box, format, sb) == LW_FAILURE) {
 
                                stringbuffer_destroy(sb);
                                lwpgerror("failed to create MARC21/XML for a geometry in the collection: %s",   lwtype_name(lwgeom_get_type(coll->geoms[i])));
 
                        }
 
                }
 
        } else {
 
                POSTGIS_DEBUGF(3, "  calculating gbox: %s", lwtype_name(lwgeom_get_type(geom)));
 
                if (lwgeom_calculate_gbox(geom, &box) == LW_FAILURE) {
 
                        stringbuffer_destroy(sb);
                        lwpgerror("failed to calculate bbox for %s", lwtype_name(lwgeom_get_type(geom)));
 
                }
 
                POSTGIS_DEBUGF(3, "  creating MARC21/XML datafield: %s", lwtype_name(lwgeom_get_type(geom)));
 
                if (gbox_to_marc21_sb(box, format, sb) == LW_FAILURE) {
 
                        stringbuffer_destroy(sb);
                        lwpgerror("failed to create MARC21/XML for %s", lwtype_name(lwgeom_get_type(geom)));
 
                }
 
        }
 
        POSTGIS_DEBUG(3, "  closing MARC21/XML record");
 
        if (stringbuffer_aprintf(sb, "</record>") < 0) {
 
                stringbuffer_destroy(sb);
                return LW_FAILURE;
 
        }
 
        v = stringbuffer_getvarlenacopy(sb);
        stringbuffer_destroy(sb);
 
        return v;
}

References gbox_to_marc21_sb(), LWCOLLECTION::geoms, is_format_valid(), LW_FAILURE, LW_FALSE, lwerror(), lwgeom_calculate_gbox(), lwgeom_get_type(), lwgeom_is_collection(), lwgeom_is_empty(), lwtype_name(), MARC21_NS, LWCOLLECTION::ngeoms, stringbuffer_aprintf(), stringbuffer_create(), stringbuffer_destroy(), and stringbuffer_getvarlenacopy().

Referenced by ST_AsMARC21().

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