public bool TryGetClientCacheEntry(
ResolvedServiceEndpoint endpoint,
string listenerName,
out CommunicationClientCacheEntry <TCommunicationClient> cacheEntry)
{
return(this.cache.TryGetValue(
new PartitionClientCacheKey(endpoint, listenerName),
out cacheEntry));
}
public bool TryGetClientCacheEntry(
Guid partitionId,
ResolvedServiceEndpoint endpoint,
string listenerName,
out CommunicationClientCacheEntry <TCommunicationClient> cacheEntry)
{
var partitionClientCache = this.clientCache.GetOrAdd(
partitionId,
new PartitionClientCache(partitionId, this.traceId));
return(partitionClientCache.TryGetClientCacheEntry(endpoint, listenerName, out cacheEntry));
}
//
// This method validates if client stored in the cache entry is valid. If the client is valid,
// this method sets the 'client' out param and returns true. If the client is not valid, it returns
// false.
//
private bool ValidateLockedClientCacheEntry(
CommunicationClientCacheEntry <TCommunicationClient> cacheEntry,
ResolvedServicePartition rsp,
out TCommunicationClient client)
{
client = cacheEntry.Client;
var faultedClient = default(TCommunicationClient);
// check if we have a cached client
if (client != null)
{
// we have a cached client, check when was it created
if (cacheEntry.Rsp.CompareVersion(rsp) >= 0)
{
// it was created with the same RSP or higher version RSP
// check if the client is still valid and not faulted
if (!this.ValidateClient(client))
{
// client is not valid, abort the client, and recreate
this.AbortClient(client);
faultedClient = client;
cacheEntry.Client = default(TCommunicationClient);
client = default(TCommunicationClient);
}
else
{
// client is valid, return the valid client
return(true);
}
}
else
{
// we have cached client, but it was created with older version of RSP
// check if the client is still valid
if (this.ValidateClient(cacheEntry.GetEndpoint(), client))
{
// the client is valid, but was initially created with an older version of RSP,
// this could happen in cases when services listen on the same endpoint after failover.
// replace the RSP in the entry and client, so that we use the right RSP incase of complaint
// based resolution in future.
cacheEntry.Rsp = rsp;
client.ResolvedServicePartition = rsp;
return(true);
}
else
{
// the client is not valid, abort the client
this.AbortClient(client);
faultedClient = client;
cacheEntry.Client = default(TCommunicationClient);
client = default(TCommunicationClient);
}
}
}
if (faultedClient != null)
{
this.OnClientDisconnected(faultedClient);
}
return(false);
}
