/// <summary>
/// <see cref="UnarySequentialDispatcherRemoteNode{TInput}"/>
/// </summary>
/// <param name="persistentCache">Persistent cache to avoid dropped data on system crash</param>
/// <param name="progress">Progress of the current bulk</param>
/// <param name="host"><see cref="Host"/></param>
/// <param name="cts"><see cref="CancellationTokenSource"/></param>
/// <param name="circuitBreakerOptions"><see cref="CircuitBreakerOptions"/></param>
/// <param name="clusterOptions"><see cref="ClusterOptions"/></param>
/// <param name="logger"><see cref="ILogger"/></param>
public UnarySequentialDispatcherRemoteNode(
IAppCache persistentCache,
IProgress <double> progress,
Host host,
CancellationTokenSource cts,
CircuitBreakerOptions circuitBreakerOptions,
ClusterOptions clusterOptions,
ILogger logger) : base(
Policy.Handle <Exception>()
.AdvancedCircuitBreakerAsync(circuitBreakerOptions.CircuitBreakerFailureThreshold,
circuitBreakerOptions.CircuitBreakerSamplingDuration,
circuitBreakerOptions.CircuitBreakerMinimumThroughput,
circuitBreakerOptions.CircuitBreakerDurationOfBreak,
onBreak: (ex, timespan, context) =>
{
logger.LogError(
$"Batch processor breaker: Breaking the circuit for {timespan.TotalMilliseconds}ms due to {ex.Message}.");
},
onReset: context =>
{
logger.LogInformation(
"Batch processor breaker: Succeeded, closed the circuit.");
},
onHalfOpen: () =>
{
logger.LogWarning(
"Batch processor breaker: Half-open, next call is a trial.");
}), clusterOptions, progress, cts, logger)
{
_logger = logger;
_clusterOptions = clusterOptions;
ISubject <PersistentItem <TInput> > dispatcherSubject = new Subject <PersistentItem <TInput> >();
_synchronizedDispatcherSubject = Subject.Synchronize(dispatcherSubject);
_synchronizedDispatcherSubjectSubscription = _synchronizedDispatcherSubject
.ObserveOn(new EventLoopScheduler(ts => new Thread(ts)))
.Select(item =>
{
return(Observable.FromAsync(() => persistentCache.AddItemAsync(item.Entity,
item.CancellationTokenSource.Token)));
})
.Merge()
.Subscribe();
var channel = new Channel(host.MachineName, host.Port,
ChannelCredentials.Insecure);
_remoteContract = MagicOnionClient.Create <IRemoteContract <TInput> >(channel);
IRemoteNodeSubject nodeReceiver = new NodeReceiver(_logger);
_remoteNodeHealthSubscription =
nodeReceiver.RemoteNodeHealthSubject.Subscribe(remoteNodeHealth =>
{
NodeMetrics.RemoteNodeHealth = remoteNodeHealth;
});
_nodeHub = StreamingHubClient.Connect <INodeHub, INodeReceiver>(channel, (INodeReceiver)nodeReceiver);
NodeMetrics = new NodeMetrics(Guid.NewGuid());
}
/// <summary>
/// <see cref="UnarySequentialDispatcherLocalNode{TInput}"/>
/// </summary>
/// <param name="persistentCache">Persistent cache to avoid dropped data on system crash</param>
/// <param name="process">The <see cref="Task"/> to be applied to an item</param>
/// <param name="progress">Progress of the current bulk</param>
/// <param name="cts"><see cref="CancellationTokenSource"/></param>
/// <param name="circuitBreakerOptions"><see cref="CircuitBreakerOptions"/></param>
/// <param name="clusterOptions"><see cref="ClusterOptions"/></param>
/// <param name="logger"><see cref="ILogger"/></param>
public UnarySequentialDispatcherLocalNode(
IAppCache persistentCache,
Func <TInput, NodeMetrics, CancellationToken, Task> process,
IProgress <double> progress,
CancellationTokenSource cts,
CircuitBreakerOptions circuitBreakerOptions,
ClusterOptions clusterOptions,
ILogger logger) : base(
Policy.Handle <Exception>()
.AdvancedCircuitBreakerAsync(circuitBreakerOptions.CircuitBreakerFailureThreshold,
circuitBreakerOptions.CircuitBreakerSamplingDuration,
circuitBreakerOptions.CircuitBreakerMinimumThroughput,
circuitBreakerOptions.CircuitBreakerDurationOfBreak,
onBreak: (ex, timespan, context) =>
{
logger.LogError(
$"Batch processor breaker: Breaking the circuit for {timespan.TotalMilliseconds}ms due to {ex.Message}.");
},
onReset: context =>
{
logger.LogInformation(
"Batch processor breaker: Succeeded, closed the circuit.");
},
onHalfOpen: () =>
{
logger.LogWarning(
"Batch processor breaker: Half-open, next call is a trial.");
}), clusterOptions, progress, cts, logger)
{
_logger = logger;
_process = process;
_clusterOptions = clusterOptions;
ISubject <PersistentItem <TInput> > dispatcherSubject = new Subject <PersistentItem <TInput> >();
_synchronizedDispatcherSubject = Subject.Synchronize(dispatcherSubject);
_synchronizedDispatcherSubjectSubscription = _synchronizedDispatcherSubject
.ObserveOn(new EventLoopScheduler(ts => new Thread(ts)))
.Select(item =>
{
return(Observable.FromAsync(() => persistentCache.AddItemAsync(item.Entity,
item.CancellationTokenSource.Token)));
})
.Merge()
.Subscribe();
NodeMetrics = new NodeMetrics(Guid.NewGuid());
}
