public void init(JObject config, CancellationTokenSource cts)
{
_config = config.ToObject <opcPromConfigWrapper>().prometheus;
server = new KestrelMetricServer(_config.port);
variablesMap = new Dictionary <string, Gauge>();
var db_nodes = _serv.db.getDbNodes();
try{
selector = new NodesSelector(_config.variableFilter);
}
catch (Exception e) {
logger.Error("HTTP server initialization failed: " + e.Message);
cts.Cancel();
}
if (!cts.IsCancellationRequested)
{
foreach (var node in db_nodes)
{
if (selector.selectNode(node.name))
{
variablesMap.Add(node.name, createMetric(node.name));
}
}
variablesMap.Add("opc_server_up", createMetric("opc_server_up", "Describe the status of connection with the opc-server, 0 means TCP connection down."));
setTimer();
try
{
server.Start();
logger.Info("Prometheus metrics exposed at http://localhost:" + _config.port + "/metrics");
}
catch (Exception e)
{
logger.Error("HTTP server initialization failed: " + e.Message);
cts.Cancel();
}
}
}
public opcPromConfigWrapper()
{
prometheus = new opcPromConfig();
}
