internal static ICircuitBreaker GetOrCreateInstance(string name, CommandProperties properties, CommandMetrics metrics, IClock clock)
{
Contract.Assert(!String.IsNullOrEmpty(name));
Contract.Assert(properties != null);
Contract.Assert(metrics != null);
Contract.Assert(clock != null);
return _circuitBreakers.GetOrAdd(name, n => new DefaultCircuitBreaker(properties, metrics, clock));
}
internal static CommandState PrepareInternal(Type commandType, IJellyfishContext context, string commandGroup, string commandName, CommandPropertiesBuilder propertiesBuilder=null, IClock clock = null, CommandMetrics metrics = null, ICircuitBreaker circuitBreaker = null)
{
var state = new CommandState();
state.CommandName = commandName ?? commandType.FullName;
state.CommandGroup = commandGroup ?? state.CommandName;
clock = clock ?? Clock.GetInstance();
var properties = propertiesBuilder?.Build( state.CommandName ) ?? new CommandProperties( state.CommandName );
metrics = metrics ?? CommandMetricsFactory.GetInstance( state.CommandName, state.CommandGroup, properties, clock );
circuitBreaker = circuitBreaker ?? ( properties.CircuitBreakerEnabled.Value ? CircuitBreakerFactory.GetOrCreateInstance( state.CommandName, properties, metrics, clock ) : new NoOpCircuitBreaker() );
context.MetricsPublisher.CreateOrRetrievePublisherForCommand( state.CommandGroup, metrics, circuitBreaker );
ServiceCommandOptions flags = ServiceCommandOptions.None;
if(IsMethodImplemented( commandType, "GetFallback" ))
flags |= ServiceCommandOptions.HasFallBack;
if(IsMethodImplemented( commandType, "GetCacheKey" ))
flags |= ServiceCommandOptions.HasCacheKey;
state.Flags = flags;
return state;
}
internal DefaultCircuitBreaker([NotNull]CommandProperties properties, [NotNull]CommandMetrics metrics, [NotNull]IClock clock)
{
_clock = clock;
_properties = properties;
_metrics = metrics;
}