mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-19 15:22:15 +08:00
Marc Schier
61 lines
2.8 KiB
C#
61 lines
2.8 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2025 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Logging.Abstractions;
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namespace Opc.Ua
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{
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/// <summary>
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/// Canonical <see cref="ITelemetryContext"/> adapter used by
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/// <see cref="OpcUaServiceCollectionExtensions.AddOpcUa(IServiceCollection)"/>.
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/// Resolves the host's <see cref="ILoggerFactory"/> from DI at first
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/// access; falls back to <see cref="NullLoggerFactory"/> when no logger
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/// factory is registered. Activity sources and meters are derived from
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/// the calling assembly through the base implementation.
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/// </summary>
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public sealed class ServiceProviderTelemetryContext : TelemetryContextBase
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{
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/// <summary>
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/// Creates a new adapter bound to the supplied service provider.
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/// </summary>
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/// <param name="serviceProvider">The host's service provider.</param>
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/// <exception cref="ArgumentNullException"><paramref name="serviceProvider"/> is <c>null</c>.</exception>
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public ServiceProviderTelemetryContext(IServiceProvider serviceProvider)
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: base(serviceProvider is null
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? throw new ArgumentNullException(nameof(serviceProvider))
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: serviceProvider.GetService<ILoggerFactory>()
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?? NullLoggerFactory.Instance)
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{
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}
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}
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}
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