internal WoopsaSubscriptionChannel(WoopsaSubscriptionServiceImplementation serviceImplementation,
int notificationQueueSize)
{
_subscriptions = new Dictionary <int, BaseWoopsaSubscriptionServiceSubscription>();
_waitNotificationEvent = new AutoResetEvent(false);
_waitStopEvent = new ManualResetEvent(false);
ServiceImplementation = serviceImplementation;
_idLock = new Object();
Id = GetNextChannelId();
NotificationQueueSize = notificationQueueSize;
_pendingNotifications = new NotificationConcurrentQueue(notificationQueueSize);
_watchClientActivity = new Stopwatch();
_watchClientActivity.Start();
}
internal WoopsaSubscriptionChannel(WoopsaSubscriptionServiceImplementation serviceImplementation,
int notificationQueueSize)
{
_subscriptions = new Dictionary<int, BaseWoopsaSubscriptionServiceSubscription>();
_waitNotificationEvent = new AutoResetEvent(false);
_waitStopEvent = new ManualResetEvent(false);
ServiceImplementation = serviceImplementation;
_idLock = new Object();
Id = GetNextChannelId();
NotificationQueueSize = notificationQueueSize;
_pendingNotifications = new NotificationConcurrentQueue(notificationQueueSize);
_watchClientActivity = new Stopwatch();
_watchClientActivity.Start();
}
public WoopsaSubscriptionServiceImplementation(WoopsaContainer root, bool isServerSide)
{
_root = root;
_isServerSide = isServerSide;
_channels = new Dictionary<int, WoopsaSubscriptionChannel>();
TimerScheduler = new LightWeightTimerScheduler();
TimerScheduler.Started += (sender, e) =>
{
_currentService = this;
};
TimerScheduler.Start();
_timerCheckChannelTimedOut = TimerScheduler.AllocateTimer(
WoopsaSubscriptionServiceConst.SubscriptionChannelLifeTimeCheckInterval);
_timerCheckChannelTimedOut.Elapsed += _timerCheckChannelTimedOut_Elapsed;
_timerCheckChannelTimedOut.IsEnabled = true;
}
public WoopsaSubscriptionService(WoopsaServer server, WoopsaContainer container)
: base(container, WoopsaSubscriptionServiceConst.WoopsaServiceSubscriptionName)
{
_server = server;
_subscriptionServiceImplementation = new WoopsaSubscriptionServiceImplementation(container, true);
_subscriptionServiceImplementation.BeforeWoopsaModelAccess +=
(sender, e) => { server.ExecuteBeforeWoopsaModelAccess(); };
_subscriptionServiceImplementation.AfterWoopsaModelAccess +=
(sender, e) => { server.ExecuteAfterWoopsaModelAccess(); };
MethodCreateSubscriptionChannel = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaCreateSubscriptionChannel,
WoopsaValueType.Integer,
new WoopsaMethodArgumentInfo[] { new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaNotificationQueueSize, WoopsaValueType.Integer) },
arguments => _subscriptionServiceImplementation.CreateSubscriptionChannel(arguments[0].ToInt32())
);
MethodRegisterSubscription = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaRegisterSubscription,
WoopsaValueType.Integer,
new WoopsaMethodArgumentInfo[] {
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionChannel, WoopsaValueType.Integer),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaPropertyLink, WoopsaValueType.WoopsaLink),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaMonitorInterval, WoopsaValueType.TimeSpan),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaPublishInterval, WoopsaValueType.TimeSpan)
},
arguments =>
{
return _subscriptionServiceImplementation.RegisterSubscription(
arguments[0].ToInt32(), arguments[1].DecodeWoopsaLocalLink(),
arguments[2].ToTimeSpan(), arguments[3].ToTimeSpan());
});
MethodUnregisterSubscription = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaUnregisterSubscription,
WoopsaValueType.Logical,
new WoopsaMethodArgumentInfo[] {
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionChannel, WoopsaValueType.Integer),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionId, WoopsaValueType.Integer)
},
arguments =>
{
return _subscriptionServiceImplementation.UnregisterSubscription(
arguments[0].ToInt32(), arguments[1].ToInt32());
});
MethodWaitNotification = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaWaitNotification,
WoopsaValueType.JsonData,
new WoopsaMethodArgumentInfo[] {
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionChannel, WoopsaValueType.Integer),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaLastNotificationId, WoopsaValueType.Integer)
},
arguments =>
{
using (var accessFreeSection = _server.EnterModelAccessFreeSection())
return new WoopsaValue(_subscriptionServiceImplementation.WaitNotification(
arguments[0].ToInt32(), arguments[1].ToInt32()));
});
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (_subscriptionServiceImplementation != null)
{
_subscriptionServiceImplementation.Dispose();
_subscriptionServiceImplementation = null;
}
}
}
public WoopsaSubscriptionService(WoopsaServer server, WoopsaContainer container)
: base(container, WoopsaSubscriptionServiceConst.WoopsaServiceSubscriptionName)
{
_server = server;
_subscriptionServiceImplementation = new WoopsaSubscriptionServiceImplementation(container, true);
_subscriptionServiceImplementation.BeforeWoopsaModelAccess +=
(sender, e) => { server.ExecuteBeforeWoopsaModelAccess(); };
_subscriptionServiceImplementation.AfterWoopsaModelAccess +=
(sender, e) => { server.ExecuteAfterWoopsaModelAccess(); };
_subscriptionServiceImplementation.CanWatch +=
OnCanReconnectSubscriptionToNewObject;
MethodCreateSubscriptionChannel = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaCreateSubscriptionChannel,
WoopsaValueType.Integer,
new WoopsaMethodArgumentInfo[] { new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaNotificationQueueSize, WoopsaValueType.Integer) },
arguments => _subscriptionServiceImplementation.CreateSubscriptionChannel(arguments[0].ToInt32())
);
MethodRegisterSubscription = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaRegisterSubscription,
WoopsaValueType.Integer,
new WoopsaMethodArgumentInfo[] {
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionChannel, WoopsaValueType.Integer),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaPropertyLink, WoopsaValueType.WoopsaLink),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaMonitorInterval, WoopsaValueType.TimeSpan),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaPublishInterval, WoopsaValueType.TimeSpan)
},
arguments =>
{
return(_subscriptionServiceImplementation.RegisterSubscription(
arguments[0].ToInt32(), arguments[1].DecodeWoopsaLocalLink(),
arguments[2].ToTimeSpan(), arguments[3].ToTimeSpan()));
});
MethodUnregisterSubscription = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaUnregisterSubscription,
WoopsaValueType.Logical,
new WoopsaMethodArgumentInfo[] {
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionChannel, WoopsaValueType.Integer),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionId, WoopsaValueType.Integer)
},
arguments =>
{
return(_subscriptionServiceImplementation.UnregisterSubscription(
arguments[0].ToInt32(), arguments[1].ToInt32()));
});
MethodWaitNotification = new WoopsaMethod(
this,
WoopsaSubscriptionServiceConst.WoopsaWaitNotification,
WoopsaValueType.JsonData,
new WoopsaMethodArgumentInfo[] {
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaSubscriptionChannel, WoopsaValueType.Integer),
new WoopsaMethodArgumentInfo(WoopsaSubscriptionServiceConst.WoopsaLastNotificationId, WoopsaValueType.Integer)
},
arguments =>
{
using (var accessFreeSection = _server.EnterModelAccessFreeSection())
return(new WoopsaValue(_subscriptionServiceImplementation.WaitNotification(
arguments[0].ToInt32(), arguments[1].ToInt32())));
});
}
private void OpenChannel()
{
lock (_channelLock)
{
try
{
_subscriptionOpenChannel = CreateSubscriptionChannel(_notificationQueueSize);
}
catch (WoopsaNotFoundException)
{
// No subscription service available, create a local one
_localSubscriptionService = new WoopsaSubscriptionServiceImplementation(_woopsaRoot, false);
try
{
_subscriptionOpenChannel = CreateSubscriptionChannel(_notificationQueueSize);
//TODO : détecter la perte de connection du service de souscription et fermer le canal
}
catch
{
_localSubscriptionService.Dispose();
throw;
}
}
}
}
private void CloseChannel()
{
lock (_channelLock)
{
if (_localSubscriptionService != null)
{
_localSubscriptionService.Dispose();
_localSubscriptionService = null;
}
_subscriptionOpenChannel = null;
_lastNotificationId = 0;
foreach (var item in _subscriptions)
item.SubscriptionId = null;
SubscriptionsChanged = true;
}
}
