static bool ReadKeyFromFile()

in roscpp_azure_iothub/src/ros_azure_iothub_cpp_node.cpp [525:556]

• 30 lines of code
• 4 McCabe index (conditional complexity)

static bool ReadKeyFromFile(const std::string fileName, std::string &key)
{
    key = "";
    if (fileName.empty())
    {
        ROS_ERROR("File name empty.");
        return false;
    }

    std::ifstream f(fileName); //taking file as inputstream
    if(f)
    {
        try
        {
            std::ostringstream ss;
            ss << f.rdbuf(); // reading data
            key = ss.str();
        }
        catch(const std::exception& e)
        {
            ROS_ERROR("Exception thrown during file read: %s", e.what());
        }
    }
    else
    {
        ROS_ERROR("Could not read from file.");
        return false;
    }

    ROS_INFO("File Read: %s", fileName.c_str());
    return true;
}