blob: e79bc5a2330b5847638873209c3225ce92b9aad4 [file] [log] [blame]
#include "utils.hpp"
#include <fmt/core.h>
#include <phosphor-logging/elog-errors.hpp>
#include <sdbusplus/bus.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include <string>
namespace open_power
{
namespace occ
{
namespace utils
{
// For throwing exceptions
using namespace phosphor::logging;
using InternalFailure =
sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
const std::string getService(const std::string& path,
const std::string& interface)
{
using InterfaceList = std::vector<std::string>;
std::map<std::string, std::vector<std::string>> mapperResponse;
auto& bus = getBus();
auto mapper = bus.new_method_call(MAPPER_BUSNAME, MAPPER_OBJ_PATH,
MAPPER_IFACE, "GetObject");
mapper.append(path, InterfaceList({interface}));
auto mapperResponseMsg = bus.call(mapper);
mapperResponseMsg.read(mapperResponse);
if (mapperResponse.empty())
{
log<level::ERR>("ERROR reading mapper response",
entry("PATH=%s", path.c_str()),
entry("INTERFACE=%s", interface.c_str()));
elog<InternalFailure>();
}
// the value here will be the service name
return mapperResponse.cbegin()->first;
}
const PropertyValue getProperty(const std::string& objectPath,
const std::string& interface,
const std::string& propertyName)
{
PropertyValue value{};
auto& bus = getBus();
auto service = getService(objectPath, interface);
if (service.empty())
{
return value;
}
auto method = bus.new_method_call(service.c_str(), objectPath.c_str(),
DBUS_PROPERTY_IFACE, "Get");
method.append(interface, propertyName);
auto reply = bus.call(method);
reply.read(value);
return value;
}
/**
* @brief Sets a given object's property value
*
* @param[in] objectPath - Name of the object containing the property
* @param[in] interface - Interface name containing the property
* @param[in] propertyName - Property name
* @param[in] value - Property value
*/
void setProperty(const std::string& objectPath, const std::string& interface,
const std::string& propertyName, PropertyValue&& value)
{
using namespace std::literals::string_literals;
PropertyValue varValue(std::forward<PropertyValue>(value));
try
{
auto& bus = getBus();
auto service = getService(objectPath, interface);
if (service.empty())
{
return;
}
auto method = bus.new_method_call(service.c_str(), objectPath.c_str(),
DBUS_PROPERTY_IFACE, "Set");
method.append(interface, propertyName, varValue);
auto reply = bus.call(method);
if (reply.is_method_error())
{
log<level::ERR>(
fmt::format("util::setProperty: Failed to set property {}",
propertyName)
.c_str());
}
}
catch (const std::exception& e)
{
auto error = errno;
log<level::ERR>(
fmt::format("setProperty: failed to Set {}, errno={}, what={}",
propertyName.c_str(), error, e.what())
.c_str());
}
}
std::vector<std::string>
getSubtreePaths(const std::vector<std::string>& interfaces,
const std::string& path)
{
std::vector<std::string> paths;
auto& bus = getBus();
auto method = bus.new_method_call(MAPPER_BUSNAME, MAPPER_OBJ_PATH,
MAPPER_IFACE, "GetSubTreePaths");
method.append(path, 0, interfaces);
auto reply = bus.call(method);
reply.read(paths);
return paths;
}
// Get the service and object path for an interface
std::string getServiceUsingSubTree(const std::string& interface,
std::string& path)
{
using Path = std::string;
using Intf = std::string;
using Serv = std::string;
using Intfs = std::vector<Intf>;
using Objects = std::map<Path, std::map<Serv, Intfs>>;
Serv service;
Objects rspObjects;
auto& bus = getBus();
auto method = bus.new_method_call(MAPPER_BUSNAME, MAPPER_OBJ_PATH,
MAPPER_IFACE, "GetSubTree");
method.append(path, 0, std::vector{interface});
auto mapperResponseMsg = bus.call(method);
mapperResponseMsg.read(rspObjects);
if (rspObjects.empty())
{
log<level::ERR>(
fmt::format(
"util::getServiceUsingSubTree: Failed getSubTree({},0,{})",
path.c_str(), interface)
.c_str());
}
else
{
path = rspObjects.begin()->first;
if (!rspObjects.begin()->second.empty())
{
service = rspObjects.begin()->second.begin()->first;
}
else
{
log<level::ERR>(
fmt::format(
"getServiceUsingSubTree: service not found for interface {} (path={})",
interface, path.c_str())
.c_str());
}
}
return service;
}
} // namespace utils
} // namespace occ
} // namespace open_power