Example #1
0
        /// <summary>
        /// This is the main entry point for your service replica.
        /// This method executes when this replica of your service becomes primary and has write status.
        /// </summary>
        /// <param name="cancellationToken">Canceled when Service Fabric needs to shut down this service replica.</param>
        protected override async Task RunAsync(CancellationToken cancellationToken)
        {
            // TODO: Replace the following sample code with your own logic
            //       or remove this RunAsync override if it's not needed in your service.

            IList <string> list = Context.CodePackageActivationContext.GetConfigurationPackageNames();

            FabricRuntime.GetActivationContext().GetConfigurationPackageObject("Config");
            string str = FabricRuntime.GetActivationContext().GetServiceTypes()[0].PlacementConstraints;


            // IF need to do balancing in RPC, add logistics with the low/high keys and partition count
            using (var client = new FabricClient())
            {
                var serviceDescription = await client.ServiceManager.GetServiceDescriptionAsync(this.Context.ServiceName);

                var partitions = await client.QueryManager.GetPartitionListAsync(new Uri("fabric:/sfcomm/rpcStateful1"));

                int  partitionLength = partitions.Count;
                long lowKey          = ((Int64RangePartitionInformation)partitions[0].PartitionInformation).LowKey;
                long highKey         = ((Int64RangePartitionInformation)partitions[partitionLength - 1].PartitionInformation).HighKey;

                // RPC Call
                IMyService helloWorldClient = ServiceProxy.Create <IMyService>(new Uri("fabric:/sfcomm/rpcStateful1"), new ServicePartitionKey(lowKey));
                string     message          = await helloWorldClient.GetHelloWorld();
            }



            var myDictionary = await this.StateManager.GetOrAddAsync <IReliableDictionary <string, long> >("myDictionary");

            while (true)
            {
                cancellationToken.ThrowIfCancellationRequested();

                using (var tx = this.StateManager.CreateTransaction())
                {
                    var result = await myDictionary.TryGetValueAsync(tx, "Counter");

                    ServiceEventSource.Current.ServiceMessage(this, "Current Counter Value: {0}",
                                                              result.HasValue ? result.Value.ToString() : "Value does not exist.");

                    await myDictionary.AddOrUpdateAsync(tx, "Counter", 0, (key, value) => ++ value);

                    // If an exception is thrown before calling CommitAsync, the transaction aborts, all changes are
                    // discarded, and nothing is saved to the secondary replicas.
                    await tx.CommitAsync();
                }

                await Task.Delay(TimeSpan.FromSeconds(1), cancellationToken);
            }
        }