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DisposingAggregateSink.cs
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DisposingAggregateSink.cs
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// Copyright 2020 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.
namespace Serilog.Core.Sinks;
sealed class DisposingAggregateSink : ILogEventSink, IDisposable
#if FEATURE_ASYNCDISPOSABLE
, IAsyncDisposable
#endif
{
readonly ILogEventSink[] _sinks;
public DisposingAggregateSink(IEnumerable<ILogEventSink> sinks)
{
Guard.AgainstNull(sinks);
_sinks = sinks.ToArray();
}
public void Emit(LogEvent logEvent)
{
List<Exception>? exceptions = null;
foreach (var sink in _sinks)
{
try
{
sink.Emit(logEvent);
}
catch (Exception ex)
{
SelfLog.WriteLine("Caught exception while emitting to sink {0}: {1}", sink, ex);
exceptions ??= new();
exceptions.Add(ex);
}
}
if (exceptions != null)
throw new AggregateException("Failed to emit a log event.", exceptions);
}
public void Dispose()
{
foreach (var sink in _sinks)
{
if (sink is not IDisposable disposable) continue;
try
{
disposable.Dispose();
}
catch (Exception ex)
{
ReportDisposingException(sink, ex);
}
}
}
#if FEATURE_ASYNCDISPOSABLE
public async ValueTask DisposeAsync()
{
foreach (var sink in _sinks)
{
if (sink is IAsyncDisposable asyncDisposable)
{
try
{
await asyncDisposable.DisposeAsync().ConfigureAwait(false);
}
catch (Exception ex)
{
ReportDisposingException(sink, ex);
}
}
else if (sink is IDisposable disposable)
{
try
{
disposable.Dispose();
}
catch (Exception ex)
{
ReportDisposingException(sink, ex);
}
}
}
}
#endif
static void ReportDisposingException(ILogEventSink sink, Exception ex)
{
SelfLog.WriteLine("Caught exception while disposing sink {0}: {1}", sink, ex);
}
}