opc_server.cpp

/// @file opc_server.cpp
///

#include <opc/ua/node.h>
#include <opc/ua/server/server.h>

using namespace OpcUa;

UaServer server;
Node renewable;

std::vector<OpcUa::Variant> my_method(NodeId context, std::vector<OpcUa::Variant> arguments)
{
    std::cout << "Method triggered" << std::endl;
    std::cout << renewable.GetValue().ToString() << std::endl;

    std::vector<OpcUa::Variant> result;
    result.push_back(Variant(static_cast<uint8_t>(0)));
    return result;
}

void add_nodes_to(uint32_t idx, Node &objects)
{
    Node smart_grid = objects.AddFolder(idx, "smart_grid");
    renewable = smart_grid.AddVariable(idx, "renewable_power", Variant(42.0));
    Node prop = smart_grid.AddProperty(idx, "a_property_thin", Variant("something"));
    Node method = smart_grid.AddMethod(idx, "trigger_method_x", my_method);
}


int main(int argc, char **argv)
{
    auto logger = spdlog::stderr_color_mt("server");
    server = UaServer(logger);

    server.SetEndpoint("opc.tcp://localhost:4840/opcua/smartgridserver");
    server.SetServerURI("Smart Grid OPC UA Server");
    server.Start();

    auto idx = server.RegisterNamespace("smart-grid");
    Node objects = server.GetObjectsNode();

    add_nodes_to(idx, objects);

    while (true)
    {
        std::this_thread::sleep_for(std::chrono::seconds(1));
    }

    return 0;
}