Joseph Doherty
44 lines
2.3 KiB
C#
44 lines
2.3 KiB
C#
namespace ZB.MOM.WW.OtOpcUa.Driver.Modbus;
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/// <summary>
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/// Single mapping point from <see cref="ModbusDriverOptions"/> to the concrete
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/// <see cref="IModbusTransport"/> its <see cref="ModbusDriverOptions.Transport"/> selects.
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/// Consumed by both <see cref="ModbusDriver"/>'s default transport-factory closure and the
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/// AdminUI Test-Connect probe, so the <see cref="ModbusTransportMode"/> switch lives in
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/// exactly one place.
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/// </summary>
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public static class ModbusTransportFactory
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{
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/// <summary>
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/// Builds the transport <paramref name="options"/>.<see cref="ModbusDriverOptions.Transport"/>
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/// selects, threading every shared connection setting (Host/Port/Timeout/AutoReconnect/
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/// KeepAlive/IdleDisconnectTimeout/Reconnect) through to whichever concrete transport is built.
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/// </summary>
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/// <param name="options">Driver configuration options.</param>
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/// <returns>A <see cref="ModbusRtuOverTcpTransport"/> when <see cref="ModbusTransportMode.RtuOverTcp"/>
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/// is selected; a <see cref="ModbusTcpTransport"/> when <see cref="ModbusTransportMode.Tcp"/> is selected.</returns>
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/// <exception cref="ArgumentOutOfRangeException">
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/// <paramref name="options"/>.<see cref="ModbusDriverOptions.Transport"/> is not a recognized
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/// <see cref="ModbusTransportMode"/> member — fail loudly rather than silently falling back to TCP/MBAP.
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/// </exception>
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public static IModbusTransport Create(ModbusDriverOptions options)
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{
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ArgumentNullException.ThrowIfNull(options);
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return options.Transport switch
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{
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ModbusTransportMode.RtuOverTcp => new ModbusRtuOverTcpTransport(
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options.Host, options.Port, options.Timeout, options.AutoReconnect,
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keepAlive: options.KeepAlive,
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idleDisconnect: options.IdleDisconnectTimeout,
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reconnect: options.Reconnect),
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ModbusTransportMode.Tcp => new ModbusTcpTransport(
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options.Host, options.Port, options.Timeout, options.AutoReconnect,
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keepAlive: options.KeepAlive,
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idleDisconnect: options.IdleDisconnectTimeout,
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reconnect: options.Reconnect),
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_ => throw new ArgumentOutOfRangeException(
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nameof(options), options.Transport, "Unknown Modbus transport mode."),
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};
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}
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}
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