/// <summary>
/// Specifies the type of exception that this policy can handle.
/// </summary>
/// <typeparam name="TException">The type of the exception to handle.</typeparam>
/// <returns>The PolicyBuilder instance.</returns>
public PolicyBuilder Or <TException>() where TException : Exception
{
ExceptionPredicate predicate = exception => exception is TException;
ExceptionPredicates.Add(predicate);
return(this);
}
/// <summary>
/// Specifies the type of exception that this policy can handle with additional filters on this exception type.
/// </summary>
/// <typeparam name="TException">The type of the exception.</typeparam>
/// <param name="exceptionPredicate">The exception predicate to filter the type of exception this policy can handle.</param>
/// <returns>The PolicyBuilder instance.</returns>
public PolicyBuilder Or <TException>(Func <TException, bool> exceptionPredicate) where TException : Exception
{
ExceptionPredicate predicate = exception => exception is TException &&
exceptionPredicate((TException)exception);
ExceptionPredicates.Add(predicate);
return(this);
}
internal static ExceptionType GetExceptionType(ExceptionPredicates exceptionPredicates, Exception exception)
{
bool isExceptionTypeHandledByThisPolicy = exceptionPredicates.FirstMatchOrDefault(exception) != null;
return(isExceptionTypeHandledByThisPolicy
? ExceptionType.HandledByThisPolicy
: ExceptionType.Unhandled);
}
internal PolicyBuilder(ExceptionPredicate exceptionPredicate)
{
ExceptionPredicates = new ExceptionPredicates();
ExceptionPredicates.Add(exceptionPredicate);
}
/// <summary>
/// Specifies the type of exception that this policy can handle if found as an InnerException of a regular <see cref="Exception"/>, or at any level of nesting within an <see cref="AggregateException"/>.
/// </summary>
/// <typeparam name="TException">The type of the exception to handle.</typeparam>
/// <returns>The PolicyBuilder instance, for fluent chaining.</returns>
public PolicyBuilder OrInner <TException>() where TException : Exception
{
ExceptionPredicates.Add((HandleInner(ex => ex is TException)));
return(this);
}
/// <summary>
/// Specifies the type of exception that this policy can handle.
/// </summary>
/// <typeparam name="TException">The type of the exception to handle.</typeparam>
/// <returns>The PolicyBuilder instance.</returns>
public PolicyBuilder Or <TException>() where TException : Exception
{
ExceptionPredicates.Add(exception => exception is TException ? exception : null);
return(this);
}
/// <summary> /// Constructs a new instance of a derived type of <see cref="PolicyBase"/> with the passed <paramref name="exceptionPredicates"/>. /// </summary> /// <param name="exceptionPredicates">Predicates indicating which exceptions the policy should handle. </param> internal PolicyBase(ExceptionPredicates exceptionPredicates) => ExceptionPredicates = exceptionPredicates ?? ExceptionPredicates.None;