Update fan inventory method

Use the methods provided within sdbusplus.hpp to update fan inventory
along with prepping inventory to be updated for each fan rotor sensor's
functional state.

Change-Id: I7d3026d289b1dd22cd4e7b4457c4d4396309c0b5
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
diff --git a/monitor/fan.cpp b/monitor/fan.cpp
index ba0744a..a6af74a 100644
--- a/monitor/fan.cpp
+++ b/monitor/fan.cpp
@@ -18,6 +18,7 @@
 #include "fan.hpp"
 #include "types.hpp"
 #include "utility.hpp"
+#include "sdbusplus.hpp"
 
 namespace phosphor
 {
@@ -28,14 +29,6 @@
 
 using namespace phosphor::logging;
 
-constexpr auto INVENTORY_PATH = "/xyz/openbmc_project/inventory";
-constexpr auto INVENTORY_INTF = "xyz.openbmc_project.Inventory.Manager";
-
-constexpr auto FUNCTIONAL_PROPERTY = "Functional";
-constexpr auto OPERATIONAL_STATUS_INTF  =
-    "xyz.openbmc_project.State.Decorator.OperationalStatus";
-
-
 Fan::Fan(Mode mode,
          sdbusplus::bus::bus& bus,
          phosphor::fan::event::EventPtr&  events,
@@ -221,18 +214,17 @@
 
 void Fan::updateInventory(bool functional)
 {
-    ObjectMap objectMap = getObjectMap(functional);
-    std::string service;
-
-    service = phosphor::fan::util::getInvService(_bus);
-
-    auto msg = _bus.new_method_call(service.c_str(),
-                                   INVENTORY_PATH,
-                                   INVENTORY_INTF,
-                                   "Notify");
-
-    msg.append(std::move(objectMap));
-    auto response = _bus.call(msg);
+    auto objectMap = util::getObjMap<bool>(
+            _name,
+            util::OPERATIONAL_STATUS_INTF,
+            util::FUNCTIONAL_PROPERTY,
+            functional);
+    auto response = util::SDBusPlus::lookupAndCallMethod(
+            _bus,
+            util::INVENTORY_PATH,
+            util::INVENTORY_INTF,
+            "Notify",
+            objectMap);
     if (response.is_method_error())
     {
         log<level::ERR>("Error in Notify call to update inventory");
@@ -243,21 +235,6 @@
     _functional = functional;
 }
 
-
-Fan::ObjectMap Fan::getObjectMap(bool functional)
-{
-    ObjectMap objectMap;
-    InterfaceMap interfaceMap;
-    PropertyMap propertyMap;
-
-    propertyMap.emplace(FUNCTIONAL_PROPERTY, functional);
-    interfaceMap.emplace(OPERATIONAL_STATUS_INTF, std::move(propertyMap));
-    objectMap.emplace(_name, std::move(interfaceMap));
-
-    return objectMap;
-}
-
-
 }
 }
 }
diff --git a/monitor/fan.hpp b/monitor/fan.hpp
index b366c44..5a21e31 100644
--- a/monitor/fan.hpp
+++ b/monitor/fan.hpp
@@ -160,14 +160,6 @@
         void updateInventory(bool functional);
 
         /**
-         * @brief Returns the object map to use when updating the inventory
-         *
-         * @param[in] functional - If the Functional property should
-         *                         be set to true or false.
-         */
-        ObjectMap getObjectMap(bool functional);
-
-        /**
          * @brief the dbus object
          */
         sdbusplus::bus::bus& _bus;
diff --git a/utility.cpp b/utility.cpp
index 7da1557..249fe2f 100644
--- a/utility.cpp
+++ b/utility.cpp
@@ -29,15 +29,6 @@
 using InternalFailure = sdbusplus::xyz::openbmc_project::Common::
                             Error::InternalFailure;
 
-//TODO Should get these from phosphor-objmgr config.h
-constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper";
-constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper";
-constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
-
-//TODO Should get these from phosphor-inventory-manager config.h
-const auto INVENTORY_PATH = "/xyz/openbmc_project/inventory"s;
-const auto INVENTORY_INTF = "xyz.openbmc_project.Inventory.Manager"s;
-
 std::string getInvService(sdbusplus::bus::bus& bus)
 {
     return getService(INVENTORY_PATH, INVENTORY_INTF, bus);
diff --git a/utility.hpp b/utility.hpp
index 32d055e..bb23dea 100644
--- a/utility.hpp
+++ b/utility.hpp
@@ -20,6 +20,17 @@
 namespace util
 {
 
+constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper";
+constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper";
+constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
+
+constexpr auto INVENTORY_PATH = "/xyz/openbmc_project/inventory";
+constexpr auto INVENTORY_INTF = "xyz.openbmc_project.Inventory.Manager";
+
+constexpr auto OPERATIONAL_STATUS_INTF =
+    "xyz.openbmc_project.State.Decorator.OperationalStatus";
+constexpr auto FUNCTIONAL_PROPERTY = "Functional";
+
 class FileDescriptor
 {
     public:
@@ -90,6 +101,43 @@
                        const std::string& interface,
                        sdbusplus::bus::bus& bus);
 
+/**
+ * @brief Get the object map for creating or updating an object property
+ *
+ * @param[in] path - The dbus object path name
+ * @param[in] intf - The dbus interface
+ * @param[in] prop - The dbus property
+ * @param[in] value - The property value
+ *
+ * @return - The full object path containing the property value
+ */
+template <typename T>
+auto getObjMap(const std::string& path,
+               const std::string& intf,
+               const std::string& prop,
+               const T& value)
+{
+    using Property = std::string;
+    using Value = sdbusplus::message::variant<T>;
+    using PropertyMap = std::map<Property, Value>;
+
+    using Interface = std::string;
+    using InterfaceMap = std::map<Interface, PropertyMap>;
+
+    using Object = sdbusplus::message::object_path;
+    using ObjectMap = std::map<Object, InterfaceMap>;
+
+    ObjectMap objectMap;
+    InterfaceMap interfaceMap;
+    PropertyMap propertyMap;
+
+    propertyMap.emplace(prop, value);
+    interfaceMap.emplace(intf, std::move(propertyMap));
+    objectMap.emplace(path, std::move(interfaceMap));
+
+    return objectMap;
+}
+
 }
 }
 }