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SecondaryLoggerSink.cs
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SecondaryLoggerSink.cs
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// Copyright 2013-2015 Serilog Contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
using System;
using System.Linq;
using Serilog.Events;
namespace Serilog.Core.Sinks
{
/// <summary>
/// Forwards log events to another logging pipeline. Copies the events so
/// that mutations performed on the copies do not affect the originals.
/// </summary>
/// <remarks>The properties dictionary is copied, however the values within
/// the dictionary (of type <see cref="LogEventProperty"/> are expected to
/// be immutable.</remarks>
sealed class SecondaryLoggerSink : ILogEventSink, IDisposable
{
readonly ILogger _logger;
readonly bool _attemptDispose;
public SecondaryLoggerSink(ILogger logger, bool attemptDispose = false)
{
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_attemptDispose = attemptDispose;
}
public void Emit(LogEvent logEvent)
{
if (logEvent == null) throw new ArgumentNullException(nameof(logEvent));
var copy = logEvent.Copy();
_logger.Write(copy);
}
public void Dispose()
{
if (!_attemptDispose)
return;
(_logger as IDisposable)?.Dispose();
}
}
}