base_parameters.hpp

/*

Copyright (c) 2017, Project OSRM contributors
All rights reserved.

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are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list
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list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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*/

#ifndef ENGINE_API_BASE_PARAMETERS_HPP
#define ENGINE_API_BASE_PARAMETERS_HPP

#include "engine/approach.hpp"
#include "engine/bearing.hpp"
#include "engine/hint.hpp"
#include "util/coordinate.hpp"

#include <boost/optional.hpp>

#include <algorithm>
#include <vector>

namespace osrm
{
namespace engine
{
namespace api
{

/**
 * General parameters for OSRM service queries.
 *
 * Holds member attributes:
 *  - coordinates: for specifying location(s) to services
 *  - hints: hint for the service to derive the position(s) in the road network more efficiently,
 *           optional per coordinate
 *  - radiuses: limits the search for segments in the road network to given radius(es) in meter,
 *              optional per coordinate
 *  - bearings: limits the search for segments in the road network to given bearing(s) in degree
 *              towards true north in clockwise direction, optional per coordinate
 *  - approaches: force the phantom node to start towards the node with the road country side.
 *
 * \see OSRM, Coordinate, Hint, Bearing, RouteParame, RouteParameters, TableParameters,
 *      NearestParameters, TripParameters, MatchParameters and TileParameters
 */
struct BaseParameters
{
    std::vector<util::Coordinate> coordinates;
    std::vector<boost::optional<Hint>> hints;
    std::vector<boost::optional<double>> radiuses;
    std::vector<boost::optional<Bearing>> bearings;
    std::vector<boost::optional<Approach>> approaches;
    std::vector<std::string> exclude;

    // Adds hints to response which can be included in subsequent requests, see `hints` above.
    bool generate_hints = true;

    BaseParameters(const std::vector<util::Coordinate> coordinates_ = {},
                   const std::vector<boost::optional<Hint>> hints_ = {},
                   std::vector<boost::optional<double>> radiuses_ = {},
                   std::vector<boost::optional<Bearing>> bearings_ = {},
                   std::vector<boost::optional<Approach>> approaches_ = {},
                   bool generate_hints_ = true,
                   std::vector<std::string> exclude = {})
        : coordinates(coordinates_), hints(hints_), radiuses(radiuses_), bearings(bearings_),
          approaches(approaches_), exclude(std::move(exclude)), generate_hints(generate_hints_)
    {
    }

    // FIXME add validation for invalid bearing values
    bool IsValid() const
    {
        return (hints.empty() || hints.size() == coordinates.size()) &&
               (bearings.empty() || bearings.size() == coordinates.size()) &&
               (radiuses.empty() || radiuses.size() == coordinates.size()) &&
               (approaches.empty() || approaches.size() == coordinates.size()) &&
               std::all_of(bearings.begin(),
                           bearings.end(),
                           [](const boost::optional<Bearing> bearing_and_range) {
                               if (bearing_and_range)
                               {
                                   return bearing_and_range->IsValid();
                               }
                               return true;
                           });
    }
};
}
}
}

#endif // ROUTE_PARAMETERS_HPP