285 lines
6.7 KiB
C++
285 lines
6.7 KiB
C++
/*
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* This file is part of the Owl Positioning System (OwlPS) project.
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* It is subject to the copyright notice and license terms in the
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* COPYRIGHT.t2t file found in the top-level directory of this
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* distribution and at
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* http://code.lm7.fr/p/owlps/source/tree/master/COPYRIGHT.t2t
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* No part of the OwlPS Project, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms
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* contained in the COPYRIGHT.t2t file; the COPYRIGHT.t2t file must be
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* distributed along with this file, either separately or by replacing
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* this notice by the COPYRIGHT.t2t file's contents.
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*/
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#ifndef _OWLPS_POSITIONING_REQUEST_HH_
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#define _OWLPS_POSITIONING_REQUEST_HH_
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#include "mobile.hh"
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#include "measurement.hh"
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#include "timestamp.hh"
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#include "posutil.hh"
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#include <owlps.h>
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#include <ctime>
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#include <vector>
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#include <unordered_map>
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#include <ostream>
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/// Represents a request sent by a Mobile
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class Request
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{
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protected:
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/// Type of the request
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uint_fast8_t type ;
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/// Number of packets sent by the mobile for this request
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pkt_id_t nb_packets ;
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/// The mobile that sent the request
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const Mobile *mobile ;
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/// Local date of the request on the mobile
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Timestamp time_sent ;
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/// Date at which we received the request from the aggregator
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Timestamp time_received ;
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/// List of Measurement of the request
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/** Note that this is not a pointer list, values are actually stored.
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The `string` parameter is the MAC address of the receiver CP. */
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std::unordered_map<std::string, Measurement> measurements ;
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/// Real coordinates of the request (normally unavailable for a
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/// standard positioning request)
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Point3D *real_position ;
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/** @name Write accessors */
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//@{
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void clear_real_position(void) ;
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//@}
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/// Measurements' list type
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/**
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* This really is just an alias to work-around clang++ that doesn't
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* handle the following syntax:
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*
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* Request(..., const std::unordered_map<std::string, Measurement>
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* &_measurements = std::unordered_map<std::string,
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* Measurement>()) ;
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*/
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using measurements_list = std::unordered_map<std::string, Measurement> ;
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public:
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Request(const Mobile *const _mobile = NULL,
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const Timestamp &_time_sent = Timestamp(),
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const std::unordered_map<std::string, Measurement>
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&_measurements = measurements_list()) ;
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Request(const std::unordered_map<std::string, Measurement>
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&_measurements) ;
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Request(const Timestamp &_time_sent,
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const std::unordered_map<std::string, Measurement>
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&_measurements = measurements_list()) ;
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Request(const Request &source) ;
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virtual ~Request(void) ;
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/** @name Read accessors */
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//@{
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uint_fast8_t get_type(void) const ;
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uint_fast16_t get_nb_packets(void) const ;
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const Mobile* get_mobile(void) const ;
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const Timestamp& get_time_sent(void) const ;
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const Timestamp& get_time_received(void) const ;
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/// Returns all the measurements
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const std::unordered_map<std::string, Measurement>&
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get_measurements(void) const ;
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/// Returns the measurement made by the CP `mac_receiver,` if any
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const Measurement*
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get_measurement(const std::string &mac_receiver) const ;
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const Point3D* get_real_position(void) const ;
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//@}
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/** @name Write accessors */
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//@{
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void set_type(const uint_fast8_t _type) ;
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void set_nb_packets(const uint_fast16_t _nb_packets) ;
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void set_mobile(const Mobile *const _mobile) ;
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void set_time_sent(const Timestamp &_time_sent) ;
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void received_now(void) ;
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void set_measurements(const std::unordered_map
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<std::string, Measurement> &_measurements) ;
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void set_real_position(const Point3D &_real_position) ;
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/// Reinitialises all attributes
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void clear(void) ;
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//@}
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/** @name Conversion accessors */
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//@{
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/// Converts to a CSV string
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const std::string to_csv(void) const ;
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//@}
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/** @name Operations */
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//@{
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/// Computes the similarity of two Request
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float similarity(const Request &source) const ;
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//@}
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/** @name Operators */
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//@{
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Request& operator=(const Request &source) ;
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bool operator==(const Request &comp) const ;
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bool operator!=(const Request &comp) const ;
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operator bool(void) const ;
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//@}
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/// Displays a Request
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friend std::ostream& operator<<(std::ostream &os, const Request &r) ;
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} ;
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/* *** Read accessors *** */
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inline uint_fast8_t Request::get_type() const
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{
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return type ;
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}
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inline uint_fast16_t Request::get_nb_packets() const
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{
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return nb_packets ;
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}
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inline const Mobile* Request::get_mobile() const
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{
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return mobile ;
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}
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inline const Timestamp& Request::get_time_sent() const
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{
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return time_sent ;
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}
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inline const Timestamp& Request::get_time_received() const
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{
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return time_received ;
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}
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inline const std::unordered_map<std::string, Measurement>&
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Request::get_measurements(void) const
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{
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return measurements ;
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}
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inline const Point3D* Request::get_real_position(void) const
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{
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return real_position ;
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}
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/* *** Write accessors *** */
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inline void Request::set_type(const uint_fast8_t _type)
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{
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type = _type ;
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}
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inline void Request::set_nb_packets(const uint_fast16_t _nb_packets)
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{
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nb_packets = _nb_packets ;
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}
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inline void Request::set_mobile(const Mobile *const _mobile)
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{
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mobile = _mobile ;
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}
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inline void Request::set_time_sent(const Timestamp &_time_sent)
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{
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time_sent = _time_sent ;
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}
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inline void Request::received_now()
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{
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time_received.now() ;
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}
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inline void Request::
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set_measurements(const std::unordered_map<std::string, Measurement>
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&_measurements)
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{
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measurements = _measurements ;
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}
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/* *** Operators *** */
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inline bool Request::operator!=(const Request &comp) const
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{
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return !(*this == comp) ;
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}
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/**
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* @returns `false` if the Request is empty.
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* @returns `true` if at least one attribute (other than #type and
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* #nb_packets) is initialised.
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*/
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inline Request::operator bool() const
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{
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return
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mobile ||
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time_sent ||
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! measurements.empty() ;
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}
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namespace std
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{
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template<> struct hash<Request>
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{
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public:
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/**
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* The Mobile MAC address and the Timestamp shourd be sufficient to
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* identify uniquely a Request, but we test everything.
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*/
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size_t operator()(const Request &source) const
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{
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size_t seed = 0 ;
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PosUtil::hash_combine(seed, source.get_type()) ;
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PosUtil::hash_combine(seed, source.get_nb_packets()) ;
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PosUtil::hash_combine(seed, source.get_time_sent()) ;
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PosUtil::hash_combine(seed, source.get_time_received()) ;
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if (source.get_mobile())
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PosUtil::hash_combine(seed, source.get_mobile()->get_mac_addr()) ;
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if (source.get_real_position())
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PosUtil::hash_combine(seed, source.get_real_position()) ;
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return seed ;
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}
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} ;
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}
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#endif // _OWLPS_POSITIONING_REQUEST_HH_
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