async Task<ResolvedServicePartition> getRsp(PartInfo part, ResolvedServicePartition prev)
{
ResolvedServicePartition rsp = null;
try
{
switch (part.Kind)
{
case ServicePartitionKind.Singleton:
rsp = await Client.ServiceManager.ResolveServicePartitionAsync(part.Message.Headers.To, prev, this.timeout);
break;
case ServicePartitionKind.Int64Range:
rsp = await Client.ServiceManager.ResolveServicePartitionAsync(part.Message.Headers.To, part.RangeKey, prev, this.timeout);
break;
case ServicePartitionKind.Named:
rsp = await Client.ServiceManager.ResolveServicePartitionAsync(part.Message.Headers.To, part.NameKey, prev, this.timeout);
break;
}
}
catch (AggregateException e)
{
log.Error(e, "Resolved for service {0} with partition key {1}. Found no endpoints.",
part.Message.Headers.To,
part.ToString());
return null;
}
log.Info("Resolve for service {0} with partition key {1}. Found {2} endpoints.",
part.Message.Headers.To,
part.KindName,
rsp.Endpoints.Count);
return rsp;
}
async Task<Filter> createFilter(PartInfo part, FabricFilter old)
{
var prev = old == null ? null : old.ResolvedServicePartition;
var rsp = await getRsp(part, prev);
var ff = new FabricFilter();
ff.Initialize(this.Retry, part, rsp);
return ff;
}
public override Task<Filter> CreateFilter(Message request)
{
var part = new PartInfo(request);
log.Info("Create filter for service {0} with partition key {1}",
request.Headers.To,
part.ToString());
return createFilter(part, null);
}
public override Task <Filter> CreateFilter(Message request)
{
var part = new PartInfo(request);
log.Info("Create filter for service {0} with partition key {1}",
request.Headers.To,
part.ToString());
return(createFilter(part, null));
}
async Task <Filter> createFilter(PartInfo part, FabricFilter old)
{
var prev = old == null ? null : old.ResolvedServicePartition;
var rsp = await getRsp(part, prev);
var ff = new FabricFilter();
ff.Initialize(this.Retry, part, rsp);
return(ff);
}
// This method is invoked by the host for every request message received. For every message received we
// resolve the service address using the To address (service name) and the partition key using FabricClient.
// The RouterTable is updated with the result.
public override Task<Filter> UpdateFilter(Message request, Filter oldfilter)
{
// if this is not a retry, then just reuse the existing filter
if (!request.Headers.To.Equals(Retry))
return Task.FromResult<Filter>(oldfilter);
// we need to get an updated filter if client told us to retry
var part = new PartInfo(request);
log.Info("Updating filter for service {0} with partition key {1}",
request.Headers.To,
part.ToString());
var oldFf = (FabricFilter)oldfilter;
return createFilter(part, oldFf);
}
// This method is invoked by the host for every request message received. For every message received we
// resolve the service address using the To address (service name) and the partition key using FabricClient.
// The RouterTable is updated with the result.
public override Task <Filter> UpdateFilter(Message request, Filter oldfilter)
{
// if this is not a retry, then just reuse the existing filter
if (!request.Headers.To.Equals(Retry))
{
return(Task.FromResult <Filter>(oldfilter));
}
// we need to get an updated filter if client told us to retry
var part = new PartInfo(request);
log.Info("Updating filter for service {0} with partition key {1}",
request.Headers.To,
part.ToString());
var oldFf = (FabricFilter)oldfilter;
return(createFilter(part, oldFf));
}
public void Initialize(Uri retry, PartInfo part, F.ResolvedServicePartition rsp)
{
this.ResolvedServicePartition = rsp;
this.Info = rsp.Info;
this.Part = part;
var uris = getUris();
base.Initialize(part.Message.Headers.To, uris);
// now add a router retry endpoint
var retryEndpoint = new RouterEndpoint(
this.Endpoints[0].Contract,
this.Endpoints[0].Binding,
new EndpointAddress(part.Message.Headers.To));
retryEndpoint.Behaviors.Add(new ClientViaBehavior(retry));
this.Endpoints.Add(retryEndpoint);
}
async Task <ResolvedServicePartition> getRsp(PartInfo part, ResolvedServicePartition prev)
{
ResolvedServicePartition rsp = null;
try
{
switch (part.Kind)
{
case ServicePartitionKind.Singleton:
rsp = await Client.ServiceManager.ResolveServicePartitionAsync(part.Message.Headers.To, prev, this.timeout);
break;
case ServicePartitionKind.Int64Range:
rsp = await Client.ServiceManager.ResolveServicePartitionAsync(part.Message.Headers.To, part.RangeKey, prev, this.timeout);
break;
case ServicePartitionKind.Named:
rsp = await Client.ServiceManager.ResolveServicePartitionAsync(part.Message.Headers.To, part.NameKey, prev, this.timeout);
break;
}
}
catch (AggregateException e)
{
log.Error(e, "Resolved for service {0} with partition key {1}. Found no endpoints.",
part.Message.Headers.To,
part.ToString());
return(null);
}
log.Info("Resolve for service {0} with partition key {1}. Found {2} endpoints.",
part.Message.Headers.To,
part.KindName,
rsp.Endpoints.Count);
return(rsp);
}