UA-.NETStandard/samples/DI/PumpDeviceIntegrationServer/Program.cs

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 *
 * OPC Foundation MIT License 1.00
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 * obtaining a copy of this software and associated documentation
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using System;
using System.Globalization;
using System.IO;
using System.Threading.Tasks;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Opc.Ua;
using Opc.Ua.Di;
using Opc.Ua.Di.Server.Builders;
using Opc.Ua.Pumps;
using Opc.Ua.Server.Fluent;
using Pumps;

HostApplicationBuilder builder = Host.CreateApplicationBuilder(args);

builder.Logging.ClearProviders();
builder.Logging.AddConsole();

int port = int.TryParse(builder.Configuration["port"], out int p) ? p : 62542;

if (!TryReadPumpCount(builder.Configuration["pumps"], out int pumpCount, out string? pumpError))
{
    Console.Error.WriteLine(pumpError);
    return 2;
}

// Bind host for the OPC UA endpoint. Defaults to 0.0.0.0 so the server is
// reachable from outside a container; override with --host / host env var
// (e.g. "localhost" for local-only development).
string host = builder.Configuration["host"] is { Length: > 0 } h ? h : "0.0.0.0";

builder.Services.Configure<PumpDeviceIntegrationOptions>(options =>
{
    options.PumpCount = pumpCount;
});

builder.Services
    .AddOpcUa()
    .AddServer(o =>
    {
        o.ApplicationName = "PumpDeviceIntegrationServer";
        o.ApplicationUri = "urn:localhost:OPCFoundation:PumpDeviceIntegrationServer";
        o.ProductUri = "uri:opcfoundation.org:PumpDeviceIntegrationServer";
        // Sample convenience only; never auto-accept untrusted certificates in production.
        o.AutoAcceptUntrustedCertificates = true;
        o.PkiRoot = Path.Combine(AppContext.BaseDirectory, "pki");
        o.RejectSHA1Certificates = true;
        o.MinCertificateKeySize = 2048;
        o.EndpointUrls.Add($"opc.tcp://{host}:{port}/PumpDeviceIntegrationServer");
    })
    .AddNodeManager<PumpNodeManagerFactory>()
    // Demonstrate the declarative DI topology-element builder after the
    // node manager has materialised and fluently wired every pump. The
    // ad-hoc Diagnostics group is added identically to each pump.
    .ConfigureDevicesFor<PumpNodeManager>(ctx =>
    {
        var manager = (PumpNodeManager)ctx.Manager;
        foreach (NodeId pumpNodeId in manager.PumpNodeIds)
        {
            ITopologyElementBuilder<PumpState> pump =
                ctx.TopologyElement<PumpState>(pumpNodeId);

            pump.WithFunctionalGroup(
                new QualifiedName("Diagnostics", ctx.Manager.InstanceNamespaceIndex),
                fg => fg.Configure(node =>
                    node.WithProperty("LastError", Variant.From(string.Empty), p => p.Writable())
                        .WithProperty("ErrorCount", 0)
                        .WithProperty("LastSelfTest", (DateTimeUtc)DateTime.UtcNow)));
        }

        return new ValueTask();
    });

await builder.Build().RunAsync().ConfigureAwait(false);
return 0;

static bool TryReadPumpCount(string? value, out int pumpCount, out string? error)
{
    const int minPumpCount = 1;
    const int maxPumpCount = 100;

    pumpCount = 2;
    error = null;

    if (string.IsNullOrWhiteSpace(value))
    {
        return true;
    }

    if (!int.TryParse(value, NumberStyles.Integer, CultureInfo.InvariantCulture, out int parsed))
    {
        error = "Invalid --pumps value '" + value + "'. Specify an integer between " +
            minPumpCount.ToString(CultureInfo.InvariantCulture) + " and " +
            maxPumpCount.ToString(CultureInfo.InvariantCulture) + ".";
        return false;
    }

    if (parsed < minPumpCount || parsed > maxPumpCount)
    {
        error = "Invalid --pumps value '" + value + "'. Specify an integer between " +
            minPumpCount.ToString(CultureInfo.InvariantCulture) + " and " +
            maxPumpCount.ToString(CultureInfo.InvariantCulture) + ".";
        return false;
    }

    pumpCount = parsed;
    return true;
}