Add parsing JSON for State Sensor PDR

According to spec DSP0248_1.2.0: 28.6 and sensor_pdr.json, parse JSON
and generate PDR structure.

Tested with JSON file:
https://gist.github.com/lxwinspur/6a40abea7330c25e4d49826e890c4be9

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I654913b6fa07f34f405f7dd41a5f1ac0ae2706fb
diff --git a/libpldmresponder/pdr_state_effecter.hpp b/libpldmresponder/pdr_state_effecter.hpp
index 173d328..9d10d32 100644
--- a/libpldmresponder/pdr_state_effecter.hpp
+++ b/libpldmresponder/pdr_state_effecter.hpp
@@ -96,7 +96,7 @@
                 auto bit = state - (index * 8);
                 bitfield8_t* bf = reinterpret_cast<bitfield8_t*>(start + index);
                 bf->byte |= 1 << bit;
-                stateValues.emplace_back(std::move(state));
+                stateValues.emplace_back(state);
             }
             start += possibleStates->possible_states_size;
 
diff --git a/libpldmresponder/pdr_state_sensor.hpp b/libpldmresponder/pdr_state_sensor.hpp
new file mode 100644
index 0000000..f57773a
--- /dev/null
+++ b/libpldmresponder/pdr_state_sensor.hpp
@@ -0,0 +1,157 @@
+#pragma once
+
+#include "libpldm/platform.h"
+
+#include "libpldmresponder/pdr_utils.hpp"
+
+namespace pldm
+{
+
+namespace responder
+{
+
+namespace pdr_state_sensor
+{
+
+using Json = nlohmann::json;
+
+static const Json empty{};
+
+/** @brief Parse PDR JSON file and generate state sensor PDR structure
+ *
+ *  @param[in] json - the JSON Object with the state sensor PDR
+ *  @param[out] handler - the Parser of PLDM command handler
+ *  @param[out] repo - pdr::RepoInterface
+ *
+ */
+template <class DBusInterface, class Handler>
+void generateStateSensorPDR(const DBusInterface& dBusIntf, const Json& json,
+                            Handler& handler, pdr_utils::RepoInterface& repo)
+{
+    static const std::vector<Json> emptyList{};
+    auto entries = json.value("entries", emptyList);
+    for (const auto& e : entries)
+    {
+        size_t pdrSize = 0;
+        auto sensors = e.value("sensors", emptyList);
+        for (const auto& sensor : sensors)
+        {
+            auto set = sensor.value("set", empty);
+            auto statesSize = set.value("size", 0);
+            if (!statesSize)
+            {
+                std::cerr << "Malformed PDR JSON return "
+                             "pdrEntry;- no state set "
+                             "info, TYPE="
+                          << PLDM_STATE_SENSOR_PDR << "\n";
+                throw InternalFailure();
+            }
+            pdrSize += sizeof(state_sensor_possible_states) -
+                       sizeof(bitfield8_t) + (sizeof(bitfield8_t) * statesSize);
+        }
+        pdrSize += sizeof(pldm_state_sensor_pdr) - sizeof(uint8_t);
+
+        std::vector<uint8_t> entry{};
+        entry.resize(pdrSize);
+
+        pldm_state_sensor_pdr* pdr =
+            reinterpret_cast<pldm_state_sensor_pdr*>(entry.data());
+        pdr->hdr.record_handle = 0;
+        pdr->hdr.version = 1;
+        pdr->hdr.type = PLDM_STATE_SENSOR_PDR;
+        pdr->hdr.record_change_num = 0;
+        pdr->hdr.length = pdrSize - sizeof(pldm_pdr_hdr);
+
+        HTOLE32(pdr->hdr.record_handle);
+        HTOLE16(pdr->hdr.record_change_num);
+        HTOLE16(pdr->hdr.length);
+
+        pdr->terminus_handle = 0;
+        pdr->sensor_id = handler.getNextSensorId();
+        pdr->entity_type = e.value("type", 0);
+        pdr->entity_instance = e.value("instance", 0);
+        pdr->container_id = e.value("container", 0);
+        pdr->sensor_init = PLDM_NO_INIT;
+        pdr->sensor_auxiliary_names_pdr = false;
+        if (sensors.size() > 8)
+        {
+            throw std::runtime_error("sensor size must be less than 8");
+        }
+        pdr->composite_sensor_count = sensors.size();
+
+        HTOLE16(pdr->terminus_handle);
+        HTOLE16(pdr->sensor_id);
+        HTOLE16(pdr->entity_type);
+        HTOLE16(pdr->entity_instance);
+        HTOLE16(pdr->container_id);
+
+        DbusMappings dbusMappings{};
+        DbusValMaps dbusValMaps{};
+        uint8_t* start =
+            entry.data() + sizeof(pldm_state_sensor_pdr) - sizeof(uint8_t);
+        for (const auto& sensor : sensors)
+        {
+            auto set = sensor.value("set", empty);
+            state_sensor_possible_states* possibleStates =
+                reinterpret_cast<state_sensor_possible_states*>(start);
+            possibleStates->state_set_id = set.value("id", 0);
+            HTOLE16(possibleStates->state_set_id);
+            possibleStates->possible_states_size = set.value("size", 0);
+
+            start += sizeof(possibleStates->state_set_id) +
+                     sizeof(possibleStates->possible_states_size);
+            static const std::vector<uint8_t> emptyStates{};
+            PossibleValues stateValues;
+            auto states = set.value("states", emptyStates);
+            for (const auto& state : states)
+            {
+                auto index = state / 8;
+                auto bit = state - (index * 8);
+                bitfield8_t* bf = reinterpret_cast<bitfield8_t*>(start + index);
+                bf->byte |= 1 << bit;
+                stateValues.emplace_back(state);
+            }
+            start += possibleStates->possible_states_size;
+            auto dbusEntry = sensor.value("dbus", empty);
+            auto objectPath = dbusEntry.value("path", "");
+            auto interface = dbusEntry.value("interface", "");
+            auto propertyName = dbusEntry.value("property_name", "");
+            auto propertyType = dbusEntry.value("property_type", "");
+
+            try
+            {
+                auto service =
+                    dBusIntf.getService(objectPath.c_str(), interface.c_str());
+            }
+            catch (const std::exception& e)
+            {
+                continue;
+            }
+
+            pldm::utils::DBusMapping dbusMapping{objectPath, interface,
+                                                 propertyName, propertyType};
+            dbusMappings.emplace_back(std::move(dbusMapping));
+
+            Json propValues = dbusEntry["property_values"];
+            StatestoDbusVal dbusIdToValMap =
+                populateMapping(propertyType, propValues, stateValues);
+            if (!dbusIdToValMap.empty())
+            {
+                dbusValMaps.emplace_back(std::move(dbusIdToValMap));
+            }
+        }
+
+        handler.addDbusObjMaps(
+            pdr->sensor_id,
+            std::make_tuple(std::move(dbusMappings), std::move(dbusValMaps)),
+            TypeId::PLDM_SENSOR_ID);
+        PdrEntry pdrEntry{};
+        pdrEntry.data = entry.data();
+        pdrEntry.size = pdrSize;
+        repo.addRecord(pdrEntry);
+    }
+}
+
+} // namespace pdr_state_sensor
+} // namespace responder
+} // namespace pldm
diff --git a/libpldmresponder/pdr_utils.hpp b/libpldmresponder/pdr_utils.hpp
index 2843ee6..c463f1f 100644
--- a/libpldmresponder/pdr_utils.hpp
+++ b/libpldmresponder/pdr_utils.hpp
@@ -30,6 +30,15 @@
 namespace pdr_utils
 {
 
+/** @struct Type ID associated with pdr
+ *
+ */
+enum class TypeId
+{
+    PLDM_EFFECTER_ID,
+    PLDM_SENSOR_ID
+};
+
 /** @struct PdrEntry
  *  PDR entry structure that acts as a PDR record structure in the PDR
  *  repository to handle PDR APIs.
diff --git a/libpldmresponder/platform.cpp b/libpldmresponder/platform.cpp
index 3a9266e..61d09ad 100644
--- a/libpldmresponder/platform.cpp
+++ b/libpldmresponder/platform.cpp
@@ -6,6 +6,7 @@
 #include "pdr.hpp"
 #include "pdr_numeric_effecter.hpp"
 #include "pdr_state_effecter.hpp"
+#include "pdr_state_sensor.hpp"
 #include "platform_numeric_effecter.hpp"
 #include "platform_state_effecter.hpp"
 
@@ -54,16 +55,31 @@
     }};
 
 void Handler::addDbusObjMaps(
-    uint16_t effecterId,
-    std::tuple<pdr_utils::DbusMappings, pdr_utils::DbusValMaps> dbusObj)
+    uint16_t id,
+    std::tuple<pdr_utils::DbusMappings, pdr_utils::DbusValMaps> dbusObj,
+    TypeId typeId)
 {
-    dbusObjMaps.emplace(effecterId, dbusObj);
+    if (typeId == TypeId::PLDM_SENSOR_ID)
+    {
+        sensorDbusObjMaps.emplace(id, dbusObj);
+    }
+    else
+    {
+        effecterDbusObjMaps.emplace(id, dbusObj);
+    }
 }
 
 const std::tuple<pdr_utils::DbusMappings, pdr_utils::DbusValMaps>&
-    Handler::getDbusObjMaps(uint16_t effecterId) const
+    Handler::getDbusObjMaps(uint16_t id, TypeId typeId) const
 {
-    return dbusObjMaps.at(effecterId);
+    if (typeId == TypeId::PLDM_SENSOR_ID)
+    {
+        return sensorDbusObjMaps.at(id);
+    }
+    else
+    {
+        return effecterDbusObjMaps.at(id);
+    }
 }
 
 void Handler::generate(const pldm::utils::DBusHandler& dBusIntf,
@@ -93,6 +109,12 @@
              pdr_numeric_effecter::generateNumericEffecterPDR<
                  pldm::utils::DBusHandler, Handler>(dBusIntf, json, *this,
                                                     repo);
+         }},
+        {PLDM_STATE_SENSOR_PDR, [this](const DBusHandler& dBusIntf,
+                                       const auto& json, RepoInterface& repo) {
+             pdr_state_sensor::generateStateSensorPDR<pldm::utils::DBusHandler,
+                                                      Handler>(dBusIntf, json,
+                                                               *this, repo);
          }}};
 
     Type pdrType{};
@@ -109,6 +131,13 @@
                     pdrType = effecter.value("pdrType", 0);
                     generateHandlers.at(pdrType)(dBusIntf, effecter, repo);
                 }
+
+                auto sensorPDRs = json.value("sensorPDRs", empty);
+                for (const auto& sensor : sensorPDRs)
+                {
+                    pdrType = sensor.value("pdrType", 0);
+                    generateHandlers.at(pdrType)(dBusIntf, sensor, repo);
+                }
             }
         }
         catch (const InternalFailure& e)
diff --git a/libpldmresponder/platform.hpp b/libpldmresponder/platform.hpp
index 5cf2534..06496dc 100644
--- a/libpldmresponder/platform.hpp
+++ b/libpldmresponder/platform.hpp
@@ -137,33 +137,42 @@
     }
 
     /** @brief Add D-Bus mapping and value mapping(stateId to D-Bus) for the
-     *         effecterId. If the same id is added, the previous dbusObjs will
+     *         Id. If the same id is added, the previous dbusObjs will
      *         be "over-written".
      *
-     *  @param[in] effecterId - effecter id
+     *  @param[in] Id - effecter/sensor id
      *  @param[in] dbusObj - list of D-Bus object structure and list of D-Bus
      *                       property value to attribute value
+     *  @param[in] typeId - the type id of enum
      */
     void addDbusObjMaps(
-        uint16_t effecterId,
-        std::tuple<pdr_utils::DbusMappings, pdr_utils::DbusValMaps> dbusObj);
+        uint16_t id,
+        std::tuple<pdr_utils::DbusMappings, pdr_utils::DbusValMaps> dbusObj,
+        TypeId typeId = TypeId::PLDM_EFFECTER_ID);
 
-    /** @brief Retrieve an effecter id -> D-Bus objects mapping
+    /** @brief Retrieve an id -> D-Bus objects mapping
      *
-     *  @param[in] effecterId - effecter id
+     *  @param[in] Id - id
+     *  @param[in] typeId - the type id of enum
      *
      *  @return std::tuple<pdr_utils::DbusMappings, pdr_utils::DbusValMaps> -
      *          list of D-Bus object structure and list of D-Bus property value
      *          to attribute value
      */
     const std::tuple<pdr_utils::DbusMappings, pdr_utils::DbusValMaps>&
-        getDbusObjMaps(uint16_t effecterId) const;
+        getDbusObjMaps(uint16_t id,
+                       TypeId typeId = TypeId::PLDM_EFFECTER_ID) const;
 
     uint16_t getNextEffecterId()
     {
         return ++nextEffecterId;
     }
 
+    uint16_t getNextSensorId()
+    {
+        return ++nextSensorId;
+    }
+
     /** @brief Parse PDR JSONs and build PDR repository
      *
      *  @param[in] dBusIntf - The interface object
@@ -340,7 +349,7 @@
         try
         {
             const auto& [dbusMappings, dbusValMaps] =
-                dbusObjMaps.at(effecterId);
+                effecterDbusObjMaps.at(effecterId);
             for (uint8_t currState = 0; currState < compEffecterCnt;
                  ++currState)
             {
@@ -412,7 +421,9 @@
   private:
     pdr_utils::Repo pdrRepo;
     uint16_t nextEffecterId{};
-    DbusObjMaps dbusObjMaps{};
+    uint16_t nextSensorId{};
+    DbusObjMaps effecterDbusObjMaps{};
+    DbusObjMaps sensorDbusObjMaps{};
     HostPDRHandler* hostPDRHandler;
     events::StateSensorHandler stateSensorHandler;
     fru::Handler* fruHandler;