1120: Add support for MetricDefinition scheme (#1088)

redfish-core/include/utils/get_chassis_names.hpp

@@ -0,0 +1,63 @@
+#pragma once
+
+#include "dbus_singleton.hpp"
+
+#include <boost/system/errc.hpp>
+#include <boost/system/error_code.hpp>
+#include <sdbusplus/message/native_types.hpp>
+
+#include <array>
+#include <string>
+#include <utility>
+#include <vector>
+
+namespace redfish
+{
+
+namespace utils
+{
+
+template <typename F>
+inline void getChassisNames(F&& cb)
+{
+    const std::array<const char*, 1> interfaces = {
+        "xyz.openbmc_project.Inventory.Item.Chassis"};
+
+    crow::connections::systemBus->async_method_call(
+        [callback = std::forward<F>(
+             cb)](const boost::system::error_code ec,
+                  const std::vector<std::string>& chassis) {
+            std::vector<std::string> chassisNames;
+
+            if (ec)
+            {
+                callback(ec, chassisNames);
+                return;
+            }
+
+            chassisNames.reserve(chassis.size());
+            for (const std::string& path : chassis)
+            {
+                sdbusplus::message::object_path dbusPath = path;
+                std::string name = dbusPath.filename();
+                if (name.empty())
+                {
+                    callback(boost::system::errc::make_error_code(
+                                 boost::system::errc::invalid_argument),
+                             chassisNames);
+                    return;
+                }
+                chassisNames.emplace_back(std::move(name));
+            }
+
+            callback(ec, chassisNames);
+        },
+        "xyz.openbmc_project.ObjectMapper",
+        "/xyz/openbmc_project/object_mapper",
+        "xyz.openbmc_project.ObjectMapper", "GetSubTreePaths",
+        "/xyz/openbmc_project/inventory", 0, interfaces);
+}
+
+} // namespace utils
+
+} // namespace redfish

redfish-core/include/utils/telemetry_utils.hpp

@@ -30,6 +30,8 @@ namespace telemetry
 constexpr const char* service = "xyz.openbmc_project.Telemetry";
 constexpr const char* reportInterface = "xyz.openbmc_project.Telemetry.Report";
 
+constexpr const char* metricDefinitionUri =
+    "/redfish/v1/TelemetryService/MetricDefinitions/";
 inline std::string getDbusReportPath(std::string_view id)
 {
     sdbusplus::message::object_path reportsPath(