void InitServers()
{
List <TheThing> tDevList = TheThingRegistry.GetThingsOfEngine(MyBaseThing.EngineName); // TheThingRegistry.GetThingsByProperty("*", Guid.Empty, "DeviceType", eOPCDeviceTypes.OPCServer);
if (tDevList.Count > 0)
{
foreach (TheThing tDev in tDevList)
{
if (!tDev.HasLiveObject)
{
switch (tDev.DeviceType)
{
case eOPCDeviceTypes.OPCRemoteServer:
TheOPCUARemoteServer tS = new TheOPCUARemoteServer(tDev, this, null);
TheThingRegistry.RegisterThing(tS);
break;
case eOPCDeviceTypes.OPCLiveTag:
TheOPCUATagThing tag = new TheOPCUATagThing(tDev, null);
TheThingRegistry.RegisterThing(tag);
break;
case eOPCDeviceTypes.OPCMethod:
TheOPCUAMethodThing tMeth = new TheOPCUAMethodThing(tDev, MyBaseEngine.GetEngineName());
TheThingRegistry.RegisterThing(tMeth);
break;
}
}
}
}
MyBaseEngine.SetStatusLevel(-1);
}
//private ApplicationConfiguration m_configuration;
private void GetEndpoints()
{
try
{
// set a short timeout because this is happening in the drop down event.
EndpointConfiguration configuration = EndpointConfiguration.Create();
configuration.OperationTimeout = 20000;
// Connect to the local discovery server and find the available servers.
using (DiscoveryClient client = DiscoveryClient.Create(new Uri(Utils.Format("opc.tcp://{0}:4840", MyBaseThing.Address)), configuration))
{
ApplicationDescriptionCollection servers = client.FindServers(null);
// populate the drop down list with the discovery URLs for the available servers.
for (int ii = 0; ii < servers.Count; ii++)
{
// don't show discovery servers.
if (servers[ii].ApplicationType == ApplicationType.DiscoveryServer)
{
continue;
}
for (int jj = 0; jj < servers[ii].DiscoveryUrls.Count; jj++)
{
string discoveryUrl = servers[ii].DiscoveryUrls[jj];
// Many servers will use the '/discovery' suffix for the discovery endpoint.
// The URL without this prefix should be the base URL for the server.
if (discoveryUrl.EndsWith("/discovery"))
{
discoveryUrl = discoveryUrl.Substring(0, discoveryUrl.Length - "/discovery".Length);
}
TheThing tDev = TheThingRegistry.GetThingByFunc(MyBaseEngine.GetEngineName(), s => s.GetProperty("Address", false).ToString() == discoveryUrl);
if (tDev == null)
{
TheOPCUARemoteServer tS = new TheOPCUARemoteServer(null, this, discoveryUrl);
TheThingRegistry.RegisterThing(tS);
}
}
}
}
}
catch (Exception)
{
}
finally
{
}
}
