libpldmresponder: create PDR when the D-Bus object path exists

On a system where this D-Bus object path does not exist, it should
not create a PDR when the D-Bus object specified here is not found.

Tested: In the PDR config files, the PDR is successfully created when
the objectPath of the D-Bus exists, otherwise, skipped the current
config and the PDR is not created.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: Ib59fa79cc28d5712161bfb971c37c86c363bafb0
diff --git a/libpldmresponder/platform.hpp b/libpldmresponder/platform.hpp
index ad635bd..c79a2ed 100644
--- a/libpldmresponder/platform.hpp
+++ b/libpldmresponder/platform.hpp
@@ -28,7 +28,8 @@
 using namespace pldm::responder::pdr_utils;
 
 using generatePDR =
-    std::function<void(const Json& json, pdr_utils::RepoInterface& repo)>;
+    std::function<void(const pldm::utils::DBusHandler& dBusIntf,
+                       const Json& json, pdr_utils::RepoInterface& repo)>;
 
 using EffecterId = uint16_t;
 using DbusObjMaps =
@@ -55,7 +56,8 @@
 class Handler : public CmdHandler
 {
   public:
-    Handler(const std::string& pdrJsonsDir, const std::string& eventsJsonsDir,
+    Handler(const pldm::utils::DBusHandler& dBusIntf,
+            const std::string& pdrJsonsDir, const std::string& eventsJsonsDir,
             pldm_pdr* repo, HostPDRHandler* hostPDRHandler,
             fru::Handler* fruHandler,
             const std::optional<EventMap>& addOnHandlersMap = std::nullopt) :
@@ -63,7 +65,7 @@
         hostPDRHandler(hostPDRHandler), stateSensorHandler(eventsJsonsDir),
         fruHandler(fruHandler)
     {
-        generate(pdrJsonsDir, pdrRepo);
+        generate(dBusIntf, pdrJsonsDir, pdrRepo);
 
         handlers.emplace(PLDM_GET_PDR,
                          [this](const pldm_msg* request, size_t payloadLength) {
@@ -158,10 +160,12 @@
 
     /** @brief Parse PDR JSONs and build PDR repository
      *
+     *  @param[in] dBusIntf - The interface object
      *  @param[in] dir - directory housing platform specific PDR JSON files
      *  @param[in] repo - instance of concrete implementation of Repo
      */
-    void generate(const std::string& dir, Repo& repo);
+    void generate(const pldm::utils::DBusHandler& dBusIntf,
+                  const std::string& dir, Repo& repo);
 
     /** @brief Parse PDR JSONs and build state effecter PDR repository
      *