Move getInvService() into utility function.
Resolves openbmc/openbmc#1299
Change-Id: I61f511dcc15e67393a47bd0395b752d2e6f17f11
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
diff --git a/utility.cpp b/utility.cpp
new file mode 100644
index 0000000..db88712
--- /dev/null
+++ b/utility.cpp
@@ -0,0 +1,66 @@
+/**
+ * Copyright © 2017 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <string>
+#include "utility.hpp"
+
+namespace phosphor
+{
+namespace fan
+{
+namespace presence
+{
+
+//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
+constexpr auto INVENTORY_PATH = "/xyz/openbmc_project/inventory";
+constexpr auto INVENTORY_INTF = "xyz.openbmc_project.Inventory.Manager";
+
+std::string getInvService(sdbusplus::bus::bus& bus)
+{
+ auto mapperCall = bus.new_method_call(MAPPER_BUSNAME,
+ MAPPER_PATH,
+ MAPPER_INTERFACE,
+ "GetObject");
+
+ mapperCall.append(INVENTORY_PATH);
+ mapperCall.append(std::vector<std::string>({INVENTORY_INTF}));
+
+ auto mapperResponseMsg = bus.call(mapperCall);
+ if (mapperResponseMsg.is_method_error())
+ {
+ throw std::runtime_error(
+ "Error in mapper call to get inventory service name");
+ }
+
+ std::map<std::string, std::vector<std::string>> mapperResponse;
+ mapperResponseMsg.read(mapperResponse);
+
+ if (mapperResponse.empty())
+ {
+ throw std::runtime_error(
+ "Error in mapper response for inventory service name");
+ }
+
+ return mapperResponse.begin()->first;
+}
+
+}
+}
+}