// constructors
public MultiServerCluster(
ClusterSettings settings,
IClusterableServerFactory serverFactory,
IEventSubscriber eventSubscriber,
IDnsMonitorFactory dnsMonitorFactory = null)
: base(settings, serverFactory, eventSubscriber)
{
Ensure.IsGreaterThanZero(settings.EndPoints.Count, "settings.EndPoints.Count");
if (settings.ConnectionMode == ClusterConnectionMode.Standalone)
{
throw new ArgumentException("ClusterConnectionMode.StandAlone is not supported for a MultiServerCluster.");
}
if (settings.ConnectionMode == ClusterConnectionMode.Direct)
{
throw new ArgumentException("ClusterConnectionMode.Direct is not supported for a MultiServerCluster.");
}
_dnsMonitorFactory = dnsMonitorFactory ?? new DnsMonitorFactory(eventSubscriber);
_monitorServersCancellationTokenSource = new CancellationTokenSource();
_servers = new List <IClusterableServer>();
_state = new InterlockedInt32(State.Initial);
_replicaSetName = settings.ReplicaSetName;
_eventSubscriber = eventSubscriber;
eventSubscriber.TryGetEventHandler(out _closingEventHandler);
eventSubscriber.TryGetEventHandler(out _closedEventHandler);
eventSubscriber.TryGetEventHandler(out _openingEventHandler);
eventSubscriber.TryGetEventHandler(out _openedEventHandler);
eventSubscriber.TryGetEventHandler(out _addingServerEventHandler);
eventSubscriber.TryGetEventHandler(out _addedServerEventHandler);
eventSubscriber.TryGetEventHandler(out _removingServerEventHandler);
eventSubscriber.TryGetEventHandler(out _removedServerEventHandler);
eventSubscriber.TryGetEventHandler(out _sdamInformationEventHandler);
}
public LoadBalancedCluster(
ClusterSettings settings,
IClusterableServerFactory serverFactory,
IEventSubscriber eventSubscriber,
IDnsMonitorFactory dnsMonitorFactory)
{
#pragma warning disable CS0618 // Type or member is obsolete
Ensure.That(settings.ConnectionModeSwitch != ConnectionModeSwitch.UseConnectionMode, $"{nameof(ConnectionModeSwitch.UseConnectionMode)} must not be used for a {nameof(LoadBalancedCluster)}.");
if (settings.ConnectionModeSwitch == ConnectionModeSwitch.UseDirectConnection)
{
Ensure.That(!settings.DirectConnection.GetValueOrDefault(), $"DirectConnection mode is not supported for {nameof(LoadBalancedCluster)}.");
}
#pragma warning restore CS0618 // Type or member is obsolete
Ensure.That(settings.LoadBalanced, $"Only Load balanced mode is supported for a {nameof(LoadBalancedCluster)}.");
Ensure.IsEqualTo(settings.EndPoints.Count, 1, nameof(settings.EndPoints.Count));
Ensure.IsNull(settings.ReplicaSetName, nameof(settings.ReplicaSetName));
Ensure.That(settings.SrvMaxHosts == 0, "srvMaxHosts cannot be used with load balanced mode.");
_clusterClock = new ClusterClock();
_clusterId = new ClusterId();
_dnsMonitorCancellationTokenSource = new CancellationTokenSource();
_dnsMonitorFactory = Ensure.IsNotNull(dnsMonitorFactory, nameof(dnsMonitorFactory));
_settings = Ensure.IsNotNull(settings, nameof(settings));
_serverFactory = Ensure.IsNotNull(serverFactory, nameof(serverFactory));
_serverReadyTaskCompletionSource = new TaskCompletionSource <bool>();
_serverSessionPool = new CoreServerSessionPool(this);
_state = new InterlockedInt32(State.Initial);
_description = ClusterDescription.CreateInitial(
_clusterId,
#pragma warning disable CS0618 // Type or member is obsolete
ClusterConnectionMode.Automatic,
ConnectionModeSwitch.UseConnectionMode,
#pragma warning restore CS0618 // Type or member is obsolete
null);
_eventSubscriber = eventSubscriber;
eventSubscriber.TryGetEventHandler(out _closingEventHandler);
eventSubscriber.TryGetEventHandler(out _closedEventHandler);
eventSubscriber.TryGetEventHandler(out _openingEventHandler);
eventSubscriber.TryGetEventHandler(out _openedEventHandler);
eventSubscriber.TryGetEventHandler(out _descriptionChangedEventHandler);
}
// constructors
public MultiServerCluster(
ClusterSettings settings,
IClusterableServerFactory serverFactory,
IEventSubscriber eventSubscriber,
IDnsMonitorFactory dnsMonitorFactory = null)
: base(settings, serverFactory, eventSubscriber)
{
Ensure.IsGreaterThanZero(settings.EndPoints.Count, "settings.EndPoints.Count");
#pragma warning disable CS0618 // Type or member is obsolete
if (settings.ConnectionModeSwitch == ConnectionModeSwitch.UseDirectConnection)
{
if (settings.DirectConnection.GetValueOrDefault())
{
throw new ArgumentException("DirectConnection is not supported for a MultiServerCluster.");
}
}
else
{
if (settings.ConnectionMode == ClusterConnectionMode.Standalone)
{
throw new ArgumentException("ClusterConnectionMode.StandAlone is not supported for a MultiServerCluster.");
}
if (settings.ConnectionMode == ClusterConnectionMode.Direct)
{
throw new ArgumentException("ClusterConnectionMode.Direct is not supported for a MultiServerCluster.");
}
}
#pragma warning restore CS0618 // Type or member is obsolete
_dnsMonitorFactory = dnsMonitorFactory ?? new DnsMonitorFactory(eventSubscriber);
_monitorServersCancellationTokenSource = new CancellationTokenSource();
_servers = new List <IClusterableServer>();
_state = new InterlockedInt32(State.Initial);
_replicaSetName = settings.ReplicaSetName;
_eventSubscriber = eventSubscriber;
eventSubscriber.TryGetEventHandler(out _closingEventHandler);
eventSubscriber.TryGetEventHandler(out _closedEventHandler);
eventSubscriber.TryGetEventHandler(out _openingEventHandler);
eventSubscriber.TryGetEventHandler(out _openedEventHandler);
eventSubscriber.TryGetEventHandler(out _addingServerEventHandler);
eventSubscriber.TryGetEventHandler(out _addedServerEventHandler);
eventSubscriber.TryGetEventHandler(out _removingServerEventHandler);
eventSubscriber.TryGetEventHandler(out _removedServerEventHandler);
eventSubscriber.TryGetEventHandler(out _sdamInformationEventHandler);
}
private LoadBalancedCluster CreateSubject(ClusterSettings settings = null, IDnsMonitorFactory dnsMonitorFactory = null)
{
return(dnsMonitorFactory != null
? new LoadBalancedCluster(settings ?? _settings, _mockServerFactory, _capturedEvents, dnsMonitorFactory)
: new LoadBalancedCluster(settings ?? _settings, _mockServerFactory, _capturedEvents));
}
