Function validate_config

src/procedures/proc_ss_paths.c:180–313

validate config map and initialize SingleSourceCtx

// validate config map and initialize SingleSourceCtx
static ProcedureResult validate_config
(
	SIValue config,
	SingleSourceCtx *ctx
) {
	SIValue start;                // start node
	SIValue relationships;        // relationship types allowed
	SIValue dir;                  // direction
	SIValue max_length;           // max traverse length
	SIValue weight_prop;          // weight attribute name
	SIValue cost_prop;            // cost attribute name
	SIValue max_cost;             // maximum cost
	SIValue path_count;           // # of paths to return
	
	bool start_exists         = MAP_GET(config, "sourceNode",   start);
	bool relationships_exists = MAP_GET(config, "relTypes",     relationships);
	bool dir_exists           = MAP_GET(config, "relDirection", dir);
	bool max_length_exists    = MAP_GET(config, "maxLen",       max_length);
	bool weight_prop_exists   = MAP_GET(config, "weightProp",   weight_prop);
	bool cost_prop_exists     = MAP_GET(config, "costProp",     cost_prop);
	bool max_cost_exists      = MAP_GET(config, "maxCost",      max_cost);
	bool path_count_exists    = MAP_GET(config, "pathCount",    path_count);
	

	if(!start_exists) {
		ErrorCtx_SetError("sourceNode is required");
		return false;
	}
	if(SI_TYPE(start) != T_NODE) {
		ErrorCtx_SetError("sourceNode must be of type Node");
		return false;
	}

	GRAPH_EDGE_DIR direction = GRAPH_EDGE_DIR_OUTGOING;
	if(dir_exists) {
		if(SI_TYPE(dir) != T_STRING) {
			ErrorCtx_SetError("relDirection values must be 'incoming', 'outgoing' or 'both'");
			return false;
		}
		if(strcasecmp(dir.stringval, "incoming") == 0) {
			direction = GRAPH_EDGE_DIR_INCOMING;
		} else if(strcasecmp(dir.stringval, "outgoing") == 0) {
			direction = GRAPH_EDGE_DIR_OUTGOING;
		} else if(strcasecmp(dir.stringval, "both") == 0) {
			direction = GRAPH_EDGE_DIR_BOTH;
		} else {
			ErrorCtx_SetError("relDirection values must be 'incoming', 'outgoing' or 'both'");
			return false;
		}
	}

	int64_t max_length_val = LONG_MAX - 1;
	if(max_length_exists) {
		if(SI_TYPE(max_length) != T_INT64) {
			ErrorCtx_SetError("maxLen must be integer");
			return false;
		}
		max_length_val = SI_GET_NUMERIC(max_length);