Add asset information for PowerSupply

This commit is to add asset information according to the Redfish
PowerSupply schema.
If the `xyz.openbmc_project.Inventory.Decorator.Asset` interface does
not exist, the asset information property is not displayed.

ref: http://redfish.dmtf.org/schemas/v1/PowerSupply.v1_5_0.json

Tested: Validator passes
curl -k -H "X-Auth-Token: $token" -X GET
https://${bmc}/redfish/v1/Chassis/chassis/PowerSubsystem/
PowerSupplies/powersupply0
{
"@odata.id": "/redfish/v1/Chassis/chassis/PowerSubsystem/
              PowerSupplies/powersupply0",
"@odata.type": "#PowerSupply.v1_5_0.PowerSupply",
"Id": "powersupply0",
"Manufacturer": "",
"Model": "51E9",
"Name": "powersupply0",
"PartNumber": "03KP466",
"SerialNumber": "YL10KY26E073",
"SparePartNumber": "03FP378",
"Status": {
"Health": "OK"
}
}

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I83f1a9375f83e3470089cb2b5207db9665cc69df

2 files changed, 74 insertions, 0 deletions

diff --git a/Redfish.md b/Redfish.md
index 75121d9f9c..d74d3e961c 100644
--- a/Redfish.md
+++ b/Redfish.md
@@ -379,6 +379,11 @@ Fields common to all schemas
 
 ##### PowerSupply
 
+- Manufacturer
+- Model
+- PartNumber
+- SerialNumber
+- SparePartNumber
 - Status
 
 ### /redfish/v1/EventService/
diff --git a/redfish-core/lib/power_supply.hpp b/redfish-core/lib/power_supply.hpp
index 8360fb197c..aa88e09988 100644
--- a/redfish-core/lib/power_supply.hpp
+++ b/redfish-core/lib/power_supply.hpp
@@ -5,6 +5,8 @@
 #include "query.hpp"
 #include "registries/privilege_registry.hpp"
 #include "utils/chassis_utils.hpp"
+#include "utils/dbus_utils.hpp"
+#include "utils/json_utils.hpp"
 
 #include <boost/system/error_code.hpp>
 #include <boost/url/format.hpp>
@@ -244,6 +246,71 @@ inline void
 }
 
 inline void
+    getPowerSupplyAsset(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
+                        const std::string& service, const std::string& path)
+{
+    sdbusplus::asio::getAllProperties(
+        *crow::connections::systemBus, service, path,
+        "xyz.openbmc_project.Inventory.Decorator.Asset",
+        [asyncResp](const boost::system::error_code& ec,
+                    const dbus::utility::DBusPropertiesMap& propertiesList) {
+        if (ec)
+        {
+            if (ec.value() != EBADR)
+            {
+                BMCWEB_LOG_ERROR << "DBUS response error for Asset "
+                                 << ec.value();
+                messages::internalError(asyncResp->res);
+            }
+            return;
+        }
+
+        const std::string* partNumber = nullptr;
+        const std::string* serialNumber = nullptr;
+        const std::string* manufacturer = nullptr;
+        const std::string* model = nullptr;
+        const std::string* sparePartNumber = nullptr;
+
+        const bool success = sdbusplus::unpackPropertiesNoThrow(
+            dbus_utils::UnpackErrorPrinter(), propertiesList, "PartNumber",
+            partNumber, "SerialNumber", serialNumber, "Manufacturer",
+            manufacturer, "Model", model, "SparePartNumber", sparePartNumber);
+
+        if (!success)
+        {
+            messages::internalError(asyncResp->res);
+            return;
+        }
+
+        if (partNumber != nullptr)
+        {
+            asyncResp->res.jsonValue["PartNumber"] = *partNumber;
+        }
+
+        if (serialNumber != nullptr)
+        {
+            asyncResp->res.jsonValue["SerialNumber"] = *serialNumber;
+        }
+
+        if (manufacturer != nullptr)
+        {
+            asyncResp->res.jsonValue["Manufacturer"] = *manufacturer;
+        }
+
+        if (model != nullptr)
+        {
+            asyncResp->res.jsonValue["Model"] = *model;
+        }
+
+        // SparePartNumber is optional on D-Bus so skip if it is empty
+        if (sparePartNumber != nullptr && !sparePartNumber->empty())
+        {
+            asyncResp->res.jsonValue["SparePartNumber"] = *sparePartNumber;
+        }
+        });
+}
+
+inline void
     doPowerSupplyGet(const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
                      const std::string& chassisId,
                      const std::string& powerSupplyId,
@@ -290,6 +357,8 @@ inline void
                                 powerSupplyPath);
             getPowerSupplyHealth(asyncResp, object.begin()->first,
                                  powerSupplyPath);
+            getPowerSupplyAsset(asyncResp, object.begin()->first,
+                                powerSupplyPath);
             });
     });
 }