Ratan Gupta | 90bfaea | 2017-10-06 20:56:31 +0530 | [diff] [blame] | 1 | #pragma once |
| 2 | |
| 3 | #include <phosphor-logging/log.hpp> |
| 4 | #include "callback.hpp" |
| 5 | |
| 6 | namespace phosphor |
| 7 | { |
| 8 | namespace dbus |
| 9 | { |
| 10 | namespace monitoring |
| 11 | { |
| 12 | |
| 13 | /** @class EventBase |
| 14 | * @brief Event callback implementation. |
| 15 | * |
| 16 | * The event callback creates the event dbus object |
| 17 | * which has event message and metadata as key value pairs |
| 18 | * as specified by the client supplied property index. |
| 19 | */ |
| 20 | class EventBase : public IndexedCallback |
| 21 | { |
| 22 | public: |
| 23 | EventBase() = delete; |
| 24 | EventBase(const EventBase&) = delete; |
| 25 | EventBase(EventBase&&) = default; |
| 26 | EventBase& operator=(const EventBase&) = delete; |
| 27 | EventBase& operator=(EventBase&&) = default; |
| 28 | virtual ~EventBase() = default; |
| 29 | EventBase(const PropertyIndex& index) : |
| 30 | IndexedCallback(index) {} |
| 31 | |
| 32 | /** @brief Callback interface implementation. */ |
| 33 | void operator()() override |
| 34 | { |
| 35 | for (const auto& n : index) |
| 36 | { |
| 37 | const auto& path = std::get<pathIndex>(n.first); |
| 38 | const auto& propertyMeta = std::get<metaIndex>(n.first); |
| 39 | const auto& value = std::get<valueIndex>(n.second); |
| 40 | |
| 41 | if (!value.get().empty()) |
| 42 | { |
| 43 | createEvent( |
| 44 | path, |
| 45 | propertyMeta, |
| 46 | value); |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | } |
| 51 | |
| 52 | private: |
| 53 | |
| 54 | /** @brief Create the event Dbus Object. |
| 55 | * @param[in] path - Dbus Object Path for which the |
| 56 | * property has changed. |
| 57 | * @param[in] property - Name of the property whose value |
| 58 | * has been changed. |
| 59 | * @param[in] value - Changed property value. |
| 60 | */ |
| 61 | virtual void createEvent( |
| 62 | const std::string& path, |
| 63 | const std::string& property, |
| 64 | const any_ns::any& value) const = 0; |
| 65 | |
| 66 | |
| 67 | }; |
| 68 | |
| 69 | /** @class Event |
| 70 | * @brief C++ type specific logic for the event callback. |
| 71 | * |
| 72 | * @tparam T - The C++ type of the property values being traced. |
| 73 | */ |
| 74 | template <typename T> |
| 75 | class Event : public EventBase |
| 76 | { |
| 77 | public: |
| 78 | Event() = delete; |
| 79 | Event(const Event&) = delete; |
| 80 | Event(Event&&) = default; |
| 81 | Event& operator=(const Event&) = delete; |
| 82 | Event& operator=(Event&&) = default; |
| 83 | ~Event() = default; |
| 84 | |
| 85 | /** @brief Constructor. |
| 86 | * @param[in] eventName - Name of the event. |
| 87 | * @param[in] eventMessage- Event Message. |
| 88 | * @param[in] index - look up index for the properties. |
| 89 | */ |
| 90 | Event(std::string eventName, |
| 91 | std::string eventMessage, |
| 92 | const PropertyIndex& index) : |
| 93 | EventBase(index), |
| 94 | name(eventName), |
| 95 | message(eventMessage) {} |
| 96 | |
| 97 | private: |
| 98 | /** @brief Create the event Dbus Object. |
| 99 | * @param[in] path - Dbus Object Path for which the |
| 100 | * property has changed. |
| 101 | * @param[in] property - Name of the property whose value |
| 102 | * has been changed. |
| 103 | * @param[in] value - Changed property value. |
| 104 | */ |
| 105 | void createEvent( |
| 106 | const std::string& path, |
| 107 | const std::string& property, |
| 108 | const any_ns::any& value) const override {} |
| 109 | |
| 110 | /** @brief Event Name */ |
| 111 | std::string name; |
| 112 | |
| 113 | /** @brief Event Message */ |
| 114 | std::string message; |
| 115 | }; |
| 116 | |
| 117 | } // namespace monitoring |
| 118 | } // namespace dbus |
| 119 | } // namespace phosphor |