public DynamicCache <string, CurrencyPair> GetCache(IDynamicCacheConfiguration configuration)
{
var cache = new DynamicCache <string, CurrencyPair>(configuration, LoggerForTests <DynamicCache <string, CurrencyPair> > .Default(), _eventSerializer);
_actors.Add(cache);
return(cache);
}
public DynamicCache(IDynamicCacheConfiguration configuration, IEventSerializer eventSerializer)
{
_eventSerializer = eventSerializer;
_configuration = configuration;
_sourceCache = new SourceCache <TAggregate, TKey>(selector => selector.Id);
_cancel = new CancellationTokenSource();
_state = new BehaviorSubject <DynamicCacheState>(DynamicCacheState.NotConnected);
_caughtingUpCache = new CaughtingUpCache <TKey, TAggregate>();
}
public DynamicCache(IDynamicCacheConfiguration configuration, ILogger <DynamicCache <TKey, TAggregate> > logger, IEventSerializer eventSerializer) : base(logger)
{
_blockEventConsumption = new ManualResetEventSlim(true);
_cacheErrors = new ObservableCollection <ActorMonitoringError>();
_logger = logger;
_cleanup = new CompositeDisposable();
_eventSerializer = eventSerializer;
_configuration = configuration;
_sourceCache = new SourceCache <TAggregate, TKey>(selector => selector.Id);
_cancel = new CancellationTokenSource();
_state = new BehaviorSubject <DynamicCacheState>(DynamicCacheState.NotConnected);
_isStaled = new BehaviorSubject <bool>(true);
_isCaughtingUp = new BehaviorSubject <bool>(false);
_caughtingUpCache = new CaughtingUpCache <TKey, TAggregate>();
_getStateOfTheWorldRetyPolicy = Policy.Handle <Exception>()
.RetryForever((ex) =>
{
_cacheErrors.Add(new ActorMonitoringError()
{
CacheErrorStatus = ActorErrorType.DynamicCacheGetStateOfTheWorldFailure,
Exception = ex
});
});
//on reconnected start try to caught up
_state.Subscribe(state =>
{
_logger.LogInformation($"Cache state is {state}");
if (state == DynamicCacheState.Reconnected)
{
_isCaughtingUp.OnNext(true);
}
}).Cleanup(_cleanup);
//start caughting up by fetching the broker state of the world
_isCaughtingUp
.Where(state => state)
.Subscribe(_ =>
_caughtUpWithStateOfTheWorldProc = Task.Run(() =>
{
WaitUntilConnected();
WaitUntilCaughtUpToStateOfTheWorld();
}, _cancel.Token))
.Cleanup(_cleanup);
Observable.FromEventPattern <NotifyCollectionChangedEventHandler, NotifyCollectionChangedEventArgs>
(e => Errors.CollectionChanged += e, e => Errors.CollectionChanged -= e)
.Where(arg => arg.EventArgs.NewItems.Count > 0)
.Subscribe(arg =>
{
foreach (var error in arg.EventArgs.NewItems.Cast <ActorMonitoringError>())
{
_logger.LogError(error.Message, error.Exception);
}
})
.Cleanup(_cleanup);
}
