/** Sample value remapping for path source muxing. * * @file * @author Steffen Vogel * @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC * @license Apache 2.0 *********************************************************************************/ #pragma once #include #include #include #include #include #define RE_MAPPING_INDEX "[a-zA-Z0-9_]+" #define RE_MAPPING_RANGE "(" RE_MAPPING_INDEX ")(?:-(" RE_MAPPING_INDEX "))?" #define RE_MAPPING_STATS "stats\\.([a-z]+)\\.([a-z]+)" #define RE_MAPPING_HDR "hdr\\.(sequence|length)" #define RE_MAPPING_TS "ts\\.(origin|received)" #define RE_MAPPING_DATA1 "data\\[" RE_MAPPING_RANGE "\\]" #define RE_MAPPING_DATA2 "(?:data\\.)?(" RE_MAPPING_INDEX ")" #define RE_MAPPING "(?:(" RE_NODE_NAME ")\\.(?:" RE_MAPPING_STATS "|" RE_MAPPING_HDR "|" RE_MAPPING_TS "|" RE_MAPPING_DATA1 "|" RE_MAPPING_DATA2 ")|(" RE_NODE_NAME ")(?:\\[" RE_MAPPING_RANGE "\\])?)" namespace villas { namespace node { /* Forward declarations */ class Node; struct Sample; class Signal; class MappingEntry { public: using Ptr = std::shared_ptr; enum class Type { UNKNOWN, DATA, STATS, HEADER, TIMESTAMP }; enum class HeaderType { LENGTH, SEQUENCE }; enum class TimestampType { ORIGIN, RECEIVED }; Node *node; /**< The node to which this mapping refers. */ enum Type type; /**< The mapping type. Selects one of the union fields below. */ /** The number of values which is covered by this mapping entry. * * A value of 0 indicates that all remaining values starting from the offset of a sample should be mapped. */ int length; unsigned offset; /**< Offset of this mapping entry within sample::data */ union { struct { int offset; Signal *signal; char *first; char *last; } data; struct { enum Stats::Metric metric; enum Stats::Type type; } stats; struct { enum HeaderType type; } header; struct { enum TimestampType type; } timestamp; }; std::string nodeName; /**< Used for between parse and prepare only. */ MappingEntry(); int prepare(NodeList &nodes); int update(struct Sample *remapped, const struct Sample *original) const; int parse(json_t *json); int parseString(const std::string &str); std::string toString(unsigned index) const; Signal::Ptr toSignal(unsigned index) const; }; } /* namespace node */ } /* namespace villas */