public DefaultDiscoveryService(
DiscoveryServiceExtension discoveryServiceExtension,
DiscoveryMessageSequenceGenerator discoveryMessageSequenceGenerator,
int duplicateMessageHistoryLength)
: base(discoveryMessageSequenceGenerator, duplicateMessageHistoryLength)
{
Fx.Assert(discoveryServiceExtension != null, "The discoveryServiceExtension must be non null.");
this.publishedEndpoints = discoveryServiceExtension.PublishedEndpoints;
}
void IServiceBehavior.Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
{
if (serviceDescription == null)
{
throw FxTrace.Exception.ArgumentNull("serviceDescription");
}
if (serviceHostBase == null)
{
throw FxTrace.Exception.ArgumentNull("serviceHostBase");
}
List <ServiceEndpoint> appEndpoints = this.GetApplicationEndpoints(serviceDescription);
DiscoveryServiceExtension discoveryServiceExtension =
serviceHostBase.Extensions.Find <DiscoveryServiceExtension>();
if (discoveryServiceExtension == null)
{
if (serviceDescription.Endpoints.Count > appEndpoints.Count)
{
discoveryServiceExtension =
new DefaultDiscoveryServiceExtension(DiscoveryDefaults.DuplicateMessageHistoryLength);
}
else
{
discoveryServiceExtension =
new DefaultDiscoveryServiceExtension(0);
}
serviceHostBase.Extensions.Add(discoveryServiceExtension);
}
for (int i = 0; i < appEndpoints.Count; i++)
{
appEndpoints[i].Behaviors.Add(
new EndpointDiscoveryMetadataInitializer(
discoveryServiceExtension.InternalPublishedEndpoints));
}
}
void IServiceBehavior.ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
{
if (serviceDescription == null)
{
throw FxTrace.Exception.ArgumentNull("serviceDescription");
}
if (serviceHostBase == null)
{
throw FxTrace.Exception.ArgumentNull("serviceHostBase");
}
DiscoveryServiceExtension discoveryServiceExtension = serviceHostBase.Extensions.Find <DiscoveryServiceExtension>();
if (discoveryServiceExtension != null)
{
DiscoveryService discoveryService = discoveryServiceExtension.ValidateAndGetDiscoveryService();
ServiceDiscoveryBehavior.SetDiscoveryImplementation(serviceHostBase, discoveryService);
if (this.announcementEndpoints.Count > 0)
{
serviceHostBase.ChannelDispatchers.Add(
new OnlineAnnouncementChannelDispatcher(
serviceHostBase,
this.announcementEndpoints,
discoveryServiceExtension.InternalPublishedEndpoints,
discoveryService.MessageSequenceGenerator));
serviceHostBase.ChannelDispatchers.Insert(0,
new OfflineAnnouncementChannelDispatcher(
serviceHostBase,
this.announcementEndpoints,
discoveryServiceExtension.InternalPublishedEndpoints,
discoveryService.MessageSequenceGenerator));
}
}
}
internal DiscoveryEndpointPublisherBehavior(DiscoveryServiceExtension extension)
{
this.extension = extension;
}
