diff --git a/src/report_factory.hpp b/src/report_factory.hpp
index bdf9268..0346441 100644
--- a/src/report_factory.hpp
+++ b/src/report_factory.hpp
@@ -2,6 +2,7 @@
 
 #include "interfaces/report_factory.hpp"
 #include "interfaces/sensor.hpp"
+#include "sensor_cache.hpp"
 
 #include <boost/asio/io_context.hpp>
 #include <sdbusplus/asio/object_server.hpp>
@@ -22,6 +23,19 @@
         interfaces::JsonStorage& reportStorage) const override;
 
   private:
+    using SensorPath = std::string;
+    using ServiceName = std::string;
+    using Ifaces = std::vector<std::string>;
+    using SensorIfaces = std::vector<std::pair<ServiceName, Ifaces>>;
+    using SensorTree = std::pair<SensorPath, SensorIfaces>;
+
+    std::vector<std::shared_ptr<interfaces::Sensor>> getSensors(
+        const std::optional<std::vector<SensorTree>>& tree,
+        const std::vector<sdbusplus::message::object_path>& sensorPaths) const;
+    std::vector<SensorTree>
+        getSensorTree(boost::asio::yield_context& yield) const;
+
     std::shared_ptr<sdbusplus::asio::connection> bus;
     std::shared_ptr<sdbusplus::asio::object_server> objServer;
+    mutable SensorCache sensorCache;
 };