public static IDisposable TryScopeCallerInfo(this Exception exception, CallerInfo info)
{
if (exception == null) throw new ArgumentNullException("exception");
var previous = exception.TrySetCallerInfo(info);
var dispose = previous != null
? (Action) (() => exception.TrySetCallerInfo(previous))
: (() => exception.TryClearCallerInfo());
return new DelegatingDisposable(dispose);
}
public void Raise(Exception e, HttpContextBase context, CallerInfo callerInfo)
{
if (context == null)
context = new HttpContextWrapper(HttpContext.Current);
var handler = Raised;
if (handler != null)
handler(this, new ErrorSignalEventArgs(e, context, callerInfo));
}
/// <summary>
/// Attempts to install a <see cref="CallerInfo"/> into an
/// <see cref="Exception"/> via <see cref="Exception.Data"/>.
/// </summary>
/// <returns>
/// Returns <see cref="CallerInfo"/> that was replaced otherwise
/// <c>null</c>.
/// </returns>
public static CallerInfo TrySetCallerInfo(this Exception exception, CallerInfo info)
{
if (exception == null) throw new ArgumentNullException("exception");
CallerInfo previous = null;
if (exception.IsWritableData())
{
previous = exception.TryPopCallerInfo();
if (info != null)
exception.Data[CallerInfoKey] = info;
}
return previous;
}
public ErrorSignalEventArgs(Exception e, HttpContextBase context, CallerInfo callerInfo)
{
if (e == null)
throw new ArgumentNullException("e");
_exception = e;
_context = context;
CallerInfo = callerInfo ?? CallerInfo.Empty;
}
