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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
/// <summary>
/// Contains <see cref="Exception"/> exception methods.
/// </summary>
public static class ExceptionExtensions
{
/// <summary>
/// Flattens the exception by digging on InnerException.
/// </summary>
/// <param name="exception">The exception.</param>
/// <returns></returns>
public static String FlattenException(this Exception exception)
{
var stringBuilder = new StringBuilder();
while (exception != null)
{
stringBuilder.AppendLine(exception.Message);
stringBuilder.AppendLine(exception.StackTrace);
exception = exception.InnerException;
}
return stringBuilder.ToString();
}
/// <summary>
/// Gets the first exception if this is an aggregated exception.
/// </summary>
/// <param name="exception">The exception.</param>
/// <returns></returns>
public static Exception GetFirstIfAggregate(this Exception exception)
{
var ex = exception as AggregateException;
if (ex != null && ex.InnerExceptions.Count > 0)
{
return ex.InnerExceptions.First();
}
return exception;
}
/// <summary>
/// Flattens the exception message in case it is an aggregated exception.
/// </summary>
/// <param name="exception">The exception.</param>
/// <returns></returns>
public static String FlattenMessage(this Exception exception)
{
String message = exception.Message;
if (exception is AggregateException)
{
try
{
message = String.Join(Environment.NewLine, (exception as AggregateException).InnerExceptions.Select(x => x.FlattenMessage()));
}
catch { }
}
else if (exception.InnerException != null)
{
message += Environment.NewLine + exception.InnerException.FlattenMessage();
}
return message;
}
}
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