/// <summary>
/// <para> Builds a <see cref="Policy"/> that will function like a Circuit Breaker.</para>
/// <para>The circuit will break if <paramref name="exceptionsAllowedBeforeBreaking"/>
/// exceptions that are handled by this policy are raised consecutively. </para>
/// <para>The circuit will stay broken for the <paramref name="durationOfBreak"/>. Any attempt to execute this policy
/// while the circuit is broken, will immediately throw a <see cref="BrokenCircuitException"/> containing the exception
/// that broke the circuit.
/// </para>
/// <para>If the first action after the break duration period results in a handled exception, the circuit will break
/// again for another <paramref name="durationOfBreak"/>; if no exception is thrown, the circuit will reset.
/// </para>
/// </summary>
/// <param name="policyBuilder">The policy builder.</param>
/// <param name="exceptionsAllowedBeforeBreaking">The number of exceptions that are allowed before opening the circuit.</param>
/// <param name="durationOfBreak">The duration the circuit will stay open before resetting.</param>
/// <param name="onBreak">The action to call when the circuit transitions to an <see cref="CircuitState.Open"/> state.</param>
/// <param name="onReset">The action to call when the circuit resets to a <see cref="CircuitState.Closed"/> state.</param>
/// <returns>The policy instance.</returns>
/// <remarks>(see "Release It!" by Michael T. Nygard fi)</remarks>
/// <exception cref="System.ArgumentOutOfRangeException">exceptionsAllowedBeforeBreaking;Value must be greater than zero.</exception>
/// <exception cref="ArgumentNullException">onBreak</exception>
/// <exception cref="ArgumentNullException">onReset</exception>
public static CircuitBreakerPolicy CircuitBreaker(this PolicyBuilder policyBuilder, int exceptionsAllowedBeforeBreaking, TimeSpan durationOfBreak, Action<Exception, TimeSpan> onBreak, Action onReset)
{
return policyBuilder.CircuitBreaker(
exceptionsAllowedBeforeBreaking,
durationOfBreak,
(exception, timespan, context) => onBreak(exception, timespan),
context => onReset()
);
}
/// <summary>
/// <para> Builds a <see cref="Policy"/> that will function like a Circuit Breaker.</para>
/// <para>The circuit will break if <paramref name="exceptionsAllowedBeforeBreaking"/>
/// exceptions that are handled by this policy are raised consecutively. </para>
/// <para>The circuit will stay broken for the <paramref name="durationOfBreak"/>. Any attempt to execute this policy
/// while the circuit is broken, will immediately throw a <see cref="BrokenCircuitException"/> containing the exception
/// that broke the circuit.
/// </para>
/// <para>If the first action after the break duration period results in a handled exception, the circuit will break
/// again for another <paramref name="durationOfBreak"/>; if no exception is thrown, the circuit will reset.
/// </para>
/// </summary>
/// <param name="policyBuilder">The policy builder.</param>
/// <param name="exceptionsAllowedBeforeBreaking">The number of exceptions that are allowed before opening the circuit.</param>
/// <param name="durationOfBreak">The duration the circuit will stay open before resetting.</param>
/// <returns>The policy instance.</returns>
/// <remarks>(see "Release It!" by Michael T. Nygard fi)</remarks>
/// <exception cref="System.ArgumentOutOfRangeException">exceptionsAllowedBeforeBreaking;Value must be greater than zero.</exception>
/// <exception cref="ArgumentNullException">onBreak</exception>
/// <exception cref="ArgumentNullException">onReset</exception>
public static CircuitBreakerPolicy CircuitBreaker(this PolicyBuilder policyBuilder, int exceptionsAllowedBeforeBreaking, TimeSpan durationOfBreak)
{
Action<Exception, TimeSpan> doNothingOnBreak = (_, __) => { };
Action doNothingOnReset = () => { };
return policyBuilder.CircuitBreaker
(exceptionsAllowedBeforeBreaking,
durationOfBreak,
doNothingOnBreak,
doNothingOnReset
);
}
/// <summary>
/// <para> Builds a <see cref="Policy"/> that will function like a Circuit Breaker.</para>
/// <para>The circuit will break if <paramref name="exceptionsAllowedBeforeBreaking"/>
/// exceptions that are handled by this policy are raised consecutively. </para>
/// <para>The circuit will stay broken for the <paramref name="durationOfBreak"/>. Any attempt to execute this policy
/// while the circuit is broken, will immediately throw a <see cref="BrokenCircuitException"/> containing the exception
/// that broke the circuit.
/// </para>
/// <para>If the first action after the break duration period results in a handled exception, the circuit will break
/// again for another <paramref name="durationOfBreak"/>; if no exception is thrown, the circuit will reset.
/// </para>
/// </summary>
/// <param name="policyBuilder">The policy builder.</param>
/// <param name="exceptionsAllowedBeforeBreaking">The number of exceptions that are allowed before opening the circuit.</param>
/// <param name="durationOfBreak">The duration the circuit will stay open before resetting.</param>
/// <param name="onBreak">The action to call when the circuit transitions to an <see cref="CircuitState.Open"/> state.</param>
/// <param name="onReset">The action to call when the circuit resets to a <see cref="CircuitState.Closed"/> state.</param>
/// <returns>The policy instance.</returns>
/// <remarks>(see "Release It!" by Michael T. Nygard fi)</remarks>
/// <exception cref="System.ArgumentOutOfRangeException">exceptionsAllowedBeforeBreaking;Value must be greater than zero.</exception>
/// <exception cref="ArgumentNullException">onBreak</exception>
/// <exception cref="ArgumentNullException">onReset</exception>
public static CircuitBreakerPolicy CircuitBreaker(this PolicyBuilder policyBuilder, int exceptionsAllowedBeforeBreaking, TimeSpan durationOfBreak, Action<Exception, TimeSpan, Context> onBreak, Action<Context> onReset)
{
Action doNothingOnHalfOpen = () => { };
return policyBuilder.CircuitBreaker(exceptionsAllowedBeforeBreaking,
durationOfBreak,
onBreak,
onReset,
doNothingOnHalfOpen
);
}