static async Task CallSvcThatUsesReliableCollection()
{
var def = new PointDefinition()
{
HostTitle = "host2", // this points to host 2 where a different interfaces are exposed
Binding = new NetTcpBinding(),
Interfaces = new List<Type>() { typeof(ISomeWcfInterface) }
};
FabricClient fc = new FabricClient(); //local cluster
var resolvedPartitions = await fc.ServiceManager.ResolveServicePartitionAsync(new Uri(FabricServiceName), "P1");
var ep = resolvedPartitions.Endpoints.SingleOrDefault((endpoint) => endpoint.Role == ServiceEndpointRole.StatefulPrimary);
var uri = ep.Address;
Console.WriteLine(string.Format("working on {0} host", def.HostTitle ));
string result;
var channelFactory =
new ChannelFactory<ISomeWcfInterface>(new NetTcpBinding(), new EndpointAddress(string.Concat(uri, def.HostTitle, "/", typeof(ISomeWcfInterface).ToString())));
// data interface
var channel = channelFactory.CreateChannel();
result = channel.SayHello(parameter);
Console.WriteLine(string.Format("opeartion {0} on interface {1} called with {2} returned {3}", "SayHello", "ISomeWcfInterface", parameter, result));
var Count = channel.GetHello();
Console.WriteLine(string.Format("opeartion {0} on interface {1} called with {2} returned {3}", "GetHello", "ISomeWcfInterface", parameter, result));
((IClientChannel)channel).Close(); // be kind rewind.
}
static async Task RunFailoverTestScenarioAsync(string clusterConnection, Uri serviceName)
{
TimeSpan maxServiceStabilizationTimeout = TimeSpan.FromSeconds(180);
PartitionSelector randomPartitionSelector = PartitionSelector.RandomOf(serviceName);
// Create FabricClient with connection & security information here.
FabricClient fabricClient = new FabricClient(clusterConnection);
// The Chaos Test Scenario should run at least 60 minutes or up until it fails.
TimeSpan timeToRun = TimeSpan.FromMinutes(60);
FailoverTestScenarioParameters scenarioParameters = new FailoverTestScenarioParameters(
randomPartitionSelector,
timeToRun,
maxServiceStabilizationTimeout);
// Other related parameters:
// Pause between two iterations for a random duration bound by this value.
// scenarioParameters.WaitTimeBetweenIterations = TimeSpan.FromSeconds(30);
// Pause between concurrent actions for a random duration bound by this value.
// scenarioParameters.WaitTimeBetweenFaults = TimeSpan.FromSeconds(10);
// Create the scenario class and execute it asynchronously.
FailoverTestScenario chaosScenario = new FailoverTestScenario(fabricClient, scenarioParameters);
try
{
await chaosScenario.ExecuteAsync(CancellationToken.None);
}
catch (AggregateException ae)
{
throw ae.InnerException;
}
}
protected override async Task RunAsync(CancellationToken cancellationToken)
{
var activationContext = await FabricRuntime.GetActivationContextAsync(Timeout.InfiniteTimeSpan, cancellationToken);
var consulServerServiceUri = new Uri($"{activationContext.ApplicationName}/ConsulServer");
if (cancellationToken.IsCancellationRequested)
return;
using (var client = new FabricClient(FabricClientRole.User))
{
long? handlerId = null;
try
{
handlerId = client.ServiceManager.RegisterServicePartitionResolutionChangeHandler(consulServerServiceUri, PartitionResolutionChange);
while (true)
{
if (cancellationToken.IsCancellationRequested)
return;
await Task.Delay(TimeSpan.FromSeconds(1), cancellationToken);
}
}
finally
{
if (handlerId.HasValue)
client.ServiceManager.UnregisterServicePartitionResolutionChangeHandler(handlerId.Value);
}
}
}
private async Task<string[]> GetInstanceEndpoints(string fabricAddress)
{
var fabClient = new FabricClient();
//Get the endpoint for the service
var serviceEndpoint = await fabClient.ServiceManager.ResolveServicePartitionAsync(new Uri(fabricAddress));
var addressesDeserialized = serviceEndpoint.Endpoints.Select(x => JsonConvert.DeserializeObject<EndpointServiceFabricModel>(x.Address));
var simpleEndpoints = addressesDeserialized.SelectMany(x => x.Endpoints.Values);
return simpleEndpoints.ToArray();
}
public Resolver(FabricClient fabClient, ILoggerFactory loggerFactory)
{
this.fabClient = fabClient;
this.logger = loggerFactory.CreateLogger("Service Resolver");
PopulateServiceCache();
cacheUpdateTimer = new System.Timers.Timer(TimeSpan.FromSeconds(CACHE_REFRESH_TIME_SECONDS).TotalMilliseconds);
cacheUpdateTimer.Elapsed += CacheUpdateTimer_UpdateServiceCache;
}
public static async Task<string> GetManagementApiEndPointAsync(string FabricEndPoint, string sMgmtAppInstanceName)
{
FabricClient fc = new FabricClient(FabricEndPoint);
ResolvedServicePartition partition = await fc.ServiceManager.ResolveServicePartitionAsync(new Uri(sMgmtAppInstanceName));
var jsonAddress = JObject.Parse(partition.GetEndpoint().Address);
var address = (string) jsonAddress["Endpoints"][""];
return address;
}
static DefaultController()
{
serviceUri = new Uri(FabricRuntime.GetActivationContext().ApplicationName + "/WordCountService");
backoffQueryDelay = TimeSpan.FromSeconds(3);
fabricClient = new FabricClient();
communicationFactory = new HttpCommunicationClientFactory(new ServicePartitionResolver(() => fabricClient));
}
public void ConfigureDebugServices(IServiceCollection services)
{
var clientName = System.Net.Dns.GetHostName();
var client = new FabricClient(new FabricClientSettings
{
ClientFriendlyName = clientName,
ConnectionInitializationTimeout = TimeSpan.FromSeconds(3),
KeepAliveInterval = TimeSpan.FromSeconds(15),
}, "localhost:19000");
client.ClientConnected += Client_ClientConnected;
client.ClientDisconnected += Client_ClientDisconnected;
services.AddLogging();
services.AddSingleton<FabricClient>(client);
services.AddSingleton<Resolver>();
}
public void Open()
{
string serverUrl = "http://localhost:5001/iot";
CancellationTokenSource webApiCancellationSource = new CancellationTokenSource();
FabricClient fabricClient = new FabricClient();
this.webHost = new WebHostBuilder().UseKestrel()
.ConfigureServices(
services => services
.AddSingleton<FabricClient>(fabricClient)
.AddSingleton<CancellationTokenSource>(webApiCancellationSource))
.UseContentRoot(Directory.GetCurrentDirectory())
.UseStartup<Startup>()
.UseUrls(serverUrl)
.Build();
this.webHost.Run();
}
public async Task<IEnumerable<string>> AllocateAsync(EventHubClient eventHubClient, FabricClient fabricClient)
{
var runtimeInformation = await eventHubClient.GetRuntimeInformationAsync();
var eventHubPartitions = runtimeInformation.PartitionIds.OrderBy(p => p).ToArray();
var serviceFabricPartitions = (await fabricClient.QueryManager.GetPartitionListAsync(_serviceName))
.Select(p => p.PartitionInformation.Id.ToString())
.OrderBy(p => p).ToArray();
// when there are more service fabric partitions then eventhub partitions,
// just assign them one by one and the remainder of the partitions will stay dormant
if (serviceFabricPartitions.Length >= eventHubPartitions.Length)
{
var index = Array.IndexOf(serviceFabricPartitions, _partitionId.ToString());
return new [] { eventHubPartitions[index] };
}
else
{
// otherwise distribute eventhub partitions evenly across service fabric partitions
var remainder = eventHubPartitions.Length % serviceFabricPartitions.Length;
var numberOfEventHubPartitionsPerServiceFabricPartition = eventHubPartitions.Length / serviceFabricPartitions.Length;
if (remainder > 0) numberOfEventHubPartitionsPerServiceFabricPartition++;
var index = Array.IndexOf(serviceFabricPartitions, _partitionId.ToString());
var allocated = new List<string>();
for (var i = 0; i < numberOfEventHubPartitionsPerServiceFabricPartition; i++)
{
var idx = (index*numberOfEventHubPartitionsPerServiceFabricPartition) + i;
if (eventHubPartitions.Length >= idx)
{
allocated.Add(eventHubPartitions[idx]);
}
}
return allocated.ToArray();
}
}
public FabricHealthReporter(string entityIdentifier, HealthState problemHealthState = HealthState.Warning)
{
if (string.IsNullOrWhiteSpace(entityIdentifier))
{
throw new ArgumentException("entityIdentifier cannot be null or empty", "entityIdentifier");
}
this.entityIdentifier = entityIdentifier;
this.problemHealthState = problemHealthState;
this.fabricClient = new FabricClient(
new FabricClientSettings()
{
HealthReportSendInterval = TimeSpan.FromSeconds(5)
}
);
CodePackageActivationContext activationContext = FabricRuntime.GetActivationContext();
this.applicatioName = new Uri(activationContext.ApplicationName);
this.serviceManifestName = activationContext.GetServiceManifestName();
NodeContext nodeContext = FabricRuntime.GetNodeContext();
this.nodeName = nodeContext.NodeName;
}
private async Task<bool> BackupCallbackAsync(BackupInfo backupInfo)
{
string backupId = Guid.NewGuid().ToString();
long totalBackupCount;
IReliableDictionary<int, long> countDictionary = await this.StateManager.GetOrAddAsync<IReliableDictionary<int, long>>(this.countDictionaryName);
using (ITransaction txn = this.StateManager.CreateTransaction())
{
long count = await countDictionary.AddOrUpdateAsync(txn, 0, 0, (key, oldValue) => { return oldValue + 1; });
totalBackupCount = count;
await txn.CommitAsync();
}
ServiceEventSource.Current.ServiceMessage(this, "Backup count dictionary updated: " + totalBackupCount);
ServiceEventSource.Current.Message("Backup count dictionary updated: " + totalBackupCount);
if ((totalBackupCount%20) == 0)
{
//The following limits the number of backups stored to 20 per partition. The actual max might be more than 20 per partition since more backups
//could have been created when deletion was taking place.
//Also depending on the backup that was restored, the count of backups could be a lot larger.
this.DeleteBackups(Path.Combine(this.localBackupStore, this.ServicePartition.PartitionInfo.Id.ToString()), 5);
}
//Simulate a restore/data loss event randomly. This assumes that all partitions have some state at this point.
//Five inventory items must be added for all five partitions to have state.
if ((totalBackupCount > 19) && (DateTime.Now.Second%20) == 0)
{
CancellationToken cancellationToken = default(CancellationToken);
ServiceEventSource.Current.ServiceMessage(this, "Restore Started");
using (FabricClient fabricClient = new FabricClient())
{
PartitionSelector partitionSelector = PartitionSelector.PartitionIdOf(
this.ServiceInitializationParameters.ServiceName,
this.ServiceInitializationParameters.PartitionId);
await fabricClient.ServiceManager.InvokeDataLossAsync(partitionSelector, DataLossMode.PartialDataLoss, cancellationToken);
}
}
await
this.CopyBackupFolderAsync(backupInfo.Directory, this.ServicePartition.PartitionInfo.Id.ToString(), backupId, CancellationToken.None);
return true;
}
/// <summary>
/// Initializes a new instance of the <see cref="ObserverManagerController"/> class.
/// </summary>
/// <param name="serviceContext">service context.</param>
/// <param name="fabricClient">FabricClient instance.</param>
public ObserverManagerController(StatelessServiceContext serviceContext, FabricClient fabricClient)
{
this.serviceContext = serviceContext;
this.fabricClient = fabricClient;
}
private async Task<string[]> getOrderedServicePartitionIds()
{
FabricClient fabricClient = new FabricClient();
ServicePartitionList PartitionList = await fabricClient.QueryManager.GetPartitionListAsync(this.m_InitParams.ServiceName);
List<string> partitions = new List<string>();
foreach (Partition p in PartitionList)
{
partitions.Add(p.PartitionInformation.Id.ToString());
}
return partitions.OrderBy(s => s).ToArray();
}
public WebService(StatelessServiceContext context)
: base(context)
{
this.fabricClient = new FabricClient();
}
public void ConfigureServices(IServiceCollection services, FabricClient fabricClient, StatelessServiceContext context)
{
services.AddScoped(typeof(ObserverBase), s => new SampleNewObserver(fabricClient, context));
}
/// <summary>
/// Initializes a new instance of the reporting type and
/// </summary>
/// <param name="traceId">A unique identifier used to correlate the debugging and diagnostics messages</param>
/// <param name="logger">An instance used to write debugging and diagnostics information</param>
/// <param name="componentName">The name of the component for debugging and diagnostics messages</param>
/// <param name="reportSourceId">A unique id used to represent the source of the health report</param>
/// <param name="reportCallback">A method to be called when the health data is required</param>
/// <param name="context">The service fabric context that is assocaited with the entity being reported on</param>
/// <param name="reportType">The entity type the health report is for</param>
/// <param name="reportingInterval">How often the report will be sent</param>
/// <param name="batchInterval">The amount of time to delay before sending for batching purposes, 0 for immediate</param>
/// <param name="timeout">The timeout for sending a report</param>
/// <param name="retryInterval">The amount of time to wait before trying to resend a report</param>
public HealthReporter(Guid traceId, ILogger logger, string componentName, string reportSourceId, ReportGenerator reportCallback, ServiceContext context, ReportTypes reportType, TimeSpan? reportingInterval = null, TimeSpan? batchInterval = null, TimeSpan? timeout = null, TimeSpan? retryInterval = null)
{
if (string.IsNullOrEmpty(reportSourceId)) throw new ArgumentException("Parameter cannot be null or empty.", nameof(reportSourceId));
if (reportCallback == null) throw new ArgumentNullException(nameof(reportCallback));
this.logger = logger;
this.componentName = componentName;
this.logger.Informational(traceId, this.componentName, "Instantiated health reporter");
this.reportSourceId = reportSourceId;
this.reportType = reportType;
this.reportCallback = reportCallback;
this.client = new FabricClient(new FabricClientSettings
{
HealthReportRetrySendInterval = retryInterval ?? TimeSpan.FromSeconds(40),
HealthReportSendInterval = batchInterval ?? TimeSpan.FromSeconds(0),
HealthOperationTimeout = timeout ?? TimeSpan.FromSeconds(120)
});
this.context = context;
this.interval = reportingInterval ?? TimeSpan.FromSeconds(30);
if (this.interval < TimeSpan.FromSeconds(5)) this.interval = TimeSpan.FromSeconds(15);
this.timeToLive = TimeSpan.FromSeconds((this.interval.TotalSeconds * 2.0) + 1.0);
}
public TenantsController(FabricClient fabricClient, ServiceCancellation serviceCancellation)
{
this.fabricClient = fabricClient;
this.serviceCancellationToken = serviceCancellation.Token;
}
public void SetUp()
{
vSessContain = new FabricSessionContainer();
FabricClient.InitOnce(GetConfig());
}
public void TearDown()
{
FabricClient.ResetInitialization();
}
public GrpcController(IReliableStateManager manager, FabricClient fabricClient, StatefulServiceContext context)
{
_manager = manager;
_client = fabricClient;
_context = context;
}
internal ServiceGroupManagementClient(FabricClient fabricClient, NativeClient.IFabricServiceGroupManagementClient4 nativeServiceGroupClient)
{
this.fabricClient = fabricClient;
this.nativeServiceGroupClient = nativeServiceGroupClient;
}
public SFBase(FabricClient fabricClient)
{
_fabricClient = fabricClient;
}
public StatefulBackendServiceController(StatelessServiceContext serviceContext, HttpClient httpClient, FabricClient fabricClient, ConfigSettings settings)
{
this.serviceContext = serviceContext;
this.httpClient = httpClient;
this.configSettings = settings;
this.fabricClient = fabricClient;
}
public HealthMonitor(String sourceId, FabricClient fabricClient)
{
SourceId = sourceId;
m_fabricClient = fabricClient;
}
protected override async Task RunAsync(CancellationToken runAsyncCancellationToken)
{
// This is to keep track of exceptions in the validation step at the end of
// each iteration of the ChaosTestScenario that is being used under the cover
//
bool validationExceptionCaught = false;
IReliableDictionary<string, CurrentState> chaosServiceState =
await this.StateManager.GetOrAddAsync<IReliableDictionary<string, CurrentState>>(StringResource.ChaosServiceStateKey);
using (ITransaction tx = this.StateManager.CreateTransaction())
{
if (!await chaosServiceState.ContainsKeyAsync(tx, StringResource.ChaosServiceStateKey, LockMode.Update))
{
await chaosServiceState.AddAsync(tx, StringResource.ChaosServiceStateKey, CurrentState.Stopped);
}
await tx.CommitAsync();
}
while (!runAsyncCancellationToken.IsCancellationRequested)
{
try
{
// check to see if we're in a "stop" or "start" state.
// this continues to poll until we're in a "start" state.
// a ReliableDictionary is used to store this information so that if the service
// fails over to another node, the state is preserved and the chaos test will continue to execute.
using (ITransaction tx = this.StateManager.CreateTransaction())
{
ConditionalValue<CurrentState> currentStateResult =
await chaosServiceState.TryGetValueAsync(tx, StringResource.ChaosServiceStateKey);
if (currentStateResult.HasValue &&
(currentStateResult.Value == CurrentState.Stopped ||
currentStateResult.Value == CurrentState.None))
{
await Task.Delay(Constants.IntervalBetweenLoopIteration, runAsyncCancellationToken);
continue;
}
}
// this section runs the actual chaos test.
// the cancellation token source is linked to the token provided to RunAsync so that we
// can stop the test if the service needs to shut down.
using (FabricClient fabricClient = new FabricClient())
{
using (this.stopEventTokenSource = CancellationTokenSource.CreateLinkedTokenSource(runAsyncCancellationToken))
{
// when a validation exception is caught, this waits for a while to let the cluster stabilize before continuing.
if (validationExceptionCaught)
{
await Task.Delay(ChaosTestConfigSettings.MaxClusterStabilizationTimeout, this.stopEventTokenSource.Token);
validationExceptionCaught = false;
}
ChaosTestScenarioParameters chaosScenarioParameters =
new ChaosTestScenarioParameters(
ChaosTestConfigSettings.MaxClusterStabilizationTimeout,
ChaosTestConfigSettings.MaxConcurrentFaults,
ChaosTestConfigSettings.EnableMoveReplicaFaults,
TimeSpan.MaxValue)
{
WaitTimeBetweenFaults =
ChaosTestConfigSettings.WaitTimeBetweenFaults,
WaitTimeBetweenIterations =
ChaosTestConfigSettings.WaitTimeBetweenIterations
};
ChaosTestScenario chaosTestScenario = new ChaosTestScenario(fabricClient, chaosScenarioParameters);
// capture progress events so we can report them back
chaosTestScenario.ProgressChanged += this.TestScenarioProgressChanged;
// this continuously runs the chaos test until the CancellationToken is signaled.
await chaosTestScenario.ExecuteAsync(this.stopEventTokenSource.Token);
}
}
}
catch (TimeoutException e)
{
string message = $"Caught TimeoutException '{e.Message}'. Will wait for cluster to stabilize before continuing test";
ServiceEventSource.Current.ServiceMessage(this, message);
validationExceptionCaught = true;
await this.StoreEventAsync(message);
}
catch (FabricValidationException e)
{
string message = $"Caught FabricValidationException '{e.Message}'. Will wait for cluster to stabilize before continuing test";
ServiceEventSource.Current.ServiceMessage(this, message);
validationExceptionCaught = true;
await this.StoreEventAsync(message);
}
catch (OperationCanceledException)
{
if (runAsyncCancellationToken.IsCancellationRequested)
{
// if RunAsync is canceled then we need to quit.
throw;
}
ServiceEventSource.Current.ServiceMessage(
this,
"Caught OperationCanceledException Exception during test execution. This is expected if test was stopped");
}
catch (AggregateException e)
{
if (e.InnerException is OperationCanceledException)
{
if (runAsyncCancellationToken.IsCancellationRequested)
{
// if RunAsync is canceled then we need to quit.
throw;
}
ServiceEventSource.Current.ServiceMessage(
this,
"Caught OperationCanceledException Exception during test execution. This is expected if test was stopped");
}
else
{
string message = $"Caught unexpected Exception during test excecution {e.InnerException}";
ServiceEventSource.Current.ServiceMessage(this, message);
await this.StoreEventAsync(message);
}
}
catch (Exception e)
{
string message = $"Caught unexpected Exception during test excecution {e}";
ServiceEventSource.Current.ServiceMessage(this, message);
await this.StoreEventAsync(message);
}
}
}
public void NewClient_SingleConfig_Default()
{
var fab = new FabricClient();
checkClient(fab, TestConfigKey);
}
// using manual resolution
static async Task doStuffUsingStandardResolve()
{
FabricClient fc = new FabricClient(); //local cluster
var resolvedPartitions = await fc.ServiceManager.ResolveServicePartitionAsync(new Uri(FabricServiceName), "P1");
var ep = resolvedPartitions.Endpoints.SingleOrDefault((endpoint) => endpoint.Role == ServiceEndpointRole.StatefulPrimary);
var uri = ep.Address;
foreach (var host in hosts)
{
Console.WriteLine(string.Format("working on {0} host", host));
string result;
var channelFactory =
new ChannelFactory<SvcInterface1>(new NetTcpBinding(), new EndpointAddress(string.Concat(uri, host, "/" , typeof(SvcInterface1).ToString())));
// data interface
var channel = channelFactory.CreateChannel();
result = channel.SvcInterface1Op1(parameter);
Console.WriteLine(string.Format("opeartion {0} on interface {1} called with {2} returned {3}", "SvcInterface1Op1", "SvcInterface1", parameter, result));
result = channel.SvcInterface1Op2(parameter);
Console.WriteLine(string.Format("opeartion {0} on interface {1} called with {2} returned {3}", "SvcInterface1Op2", "SvcInterface1", parameter, result));
((IClientChannel)channel).Close(); // be kind rewind.
var channelFactory2 =
new ChannelFactory<SvcInterface2>(new NetTcpBinding(), new EndpointAddress(string.Concat(uri, host, "/", typeof(SvcInterface2).ToString())));
var channel2 = channelFactory2.CreateChannel();
result = channel2.SvcInterface2Op1(parameter);
Console.WriteLine(string.Format("opeartion {0} on interface {1} called with {2} returned {3}", "SvcInterface2Op1", "SvcInterface2", parameter, result));
result = channel2.SvcInterface2Op2(parameter);
Console.WriteLine(string.Format("opeartion {0} on interface {1} called with {2} returned {3}", "SvcInterface2Op2", "SvcInterface2", parameter, result));
((IClientChannel)channel2).Close(); // be kind rewind.
}
}
public TenantsController(FabricClient fabricClient, ServiceCancellation serviceCancellation)
{
this.fabricClient = fabricClient;
this.serviceCancellationToken = serviceCancellation.Token;
}
private Program(Options options)
{
_options = options;
_fabricClient = new FabricClient();
}
/// <summary>
/// Constructor for RepairManager helper
/// </summary>
/// <param name="fabricClient"></param>
/// <param name="context"></param>
internal RepairManagerHelper(FabricClient fabricClient, ServiceContext context)
{
this.fabricClient = fabricClient;
this.context = context;
}
public ClusterNotifier(FabricClient fabricClient, HttpClient httpClient, IBigBrother bb)
{
HttpClient = httpClient;
_bb = bb;
QueryManager = new QueryManagerWrapper(fabricClient);
}
/// <summary>
/// Constructor for Command Processor
/// </summary>
/// <param name="fabricClient">Fabric client object used for carrying out service fabric client requests</param>
/// <param name="serviceEventSource">Eventsource used for logging</param>
public CommandProcessor(FabricClient fabricClient, IPatchOrchestrationEvents serviceEventSource)
{
this.fabricClient = fabricClient;
ServiceEventSource.Current = serviceEventSource;
this.cancellationTokenSource = new CancellationTokenSource();
}
public FabricClientWrapper()
{
FabricClient = new FabricClient();
}
private async Task <SprocAddressStruct> GetOrCreateSproServiceInstanceAsync(string messageSessionType, string messageUserName)
{
var urlPath = $"SPROC_{messageSessionType}_{messageUserName}";
var url = new ServiceUriBuilder(urlPath).ToUri();
var fabricClient = new FabricClient();
ServiceDescription service = null;
try
{
service = await fabricClient.ServiceManager.GetServiceDescriptionAsync(url);
}
catch (Exception ex)
{
// nothing to do -> exception mean no service with the requested namename
service = null;
}
if (service == null)
{
StatelessServiceDescription newGeneratorDescription = new StatelessServiceDescription()
{
ApplicationName = new Uri(this.Context.CodePackageActivationContext.ApplicationName),
ServiceName = url,
InstanceCount = 1,
ServiceTypeName = "com.mega.SproGuestExeType",
PartitionSchemeDescription = new SingletonPartitionSchemeDescription()
};
await fabricClient.ServiceManager.CreateServiceAsync(newGeneratorDescription).ConfigureAwait(false);
service = await fabricClient.ServiceManager.GetServiceDescriptionAsync(url);
var healthState = HealthState.Unknown;
var count = 0;
while (healthState != HealthState.Ok)
{
if (count++ >= 10)
{
throw new TimeoutException("Time out waiting for " + url);
}
var serviceList = await fabricClient.QueryManager.GetServiceListAsync(new Uri(this.Context.CodePackageActivationContext.ApplicationName));
healthState = serviceList.Single(services => services.ServiceName == url).HealthState;
if (healthState != HealthState.Ok)
{
await Task.Delay(TimeSpan.FromSeconds(2));
}
}
}
ServicePartitionResolver resolver = ServicePartitionResolver.GetDefault();
ResolvedServicePartition partition = await resolver.ResolveAsync(service.ServiceName,
new ServicePartitionKey(), CancellationToken.None);
var s = partition.Endpoints.First();
// s.Address == {"Endpoints":{"com.mega.SproGuestExeTypeEndpoint":"localhost:33039"}}
// HACK : exytraction fqdn : should using json deserialization instead of this bad hack
int start = s.Address.IndexOf(":\"") + 2;
int stop = s.Address.IndexOf("\"", start);
var fqdn = s.Address.Substring(start, stop - start);
var parts = fqdn.Split(':');
return(new SprocAddressStruct {
ServiceName = service.ServiceName, Ip = parts[0], Port = Convert.ToInt32(parts[1])
});
}
public ChessFabrickController(HttpClient httpClient, StatelessServiceContext context, FabricClient fabricClient)
{
this.fabricClient = fabricClient;
this.httpClient = httpClient;
this.context = context;
this.proxyFactory = new ServiceProxyFactory((c) =>
{
return(new FabricTransportServiceRemotingClientFactory());
});
this.chessStatefulUri = new Uri($"{context.CodePackageActivationContext.ApplicationName}/ChessFabrickStateful");
this.playerServiceUri = new Uri($"{context.CodePackageActivationContext.ApplicationName}/ChessFabrickPlayersStateful");
}
public ReliableCollectionController(FabricClient fabricClient, HttpClient httpClient)
{
_fabricClient = fabricClient;
_httpClient = httpClient;
}
/// <summary>
/// Static WatchdogService constructor.
/// </summary>
static WatchdogService()
{
_client = CreateFabricClient();
}
/// <summary>
/// Allows this controller, which is recreated and destroyed for each call,
/// to access the contexts it needs to control the behavior wanted.
/// </summary>
public RoomController(StatelessServiceContext serviceContext, HttpClient httpClient, FabricClient fabricClient, ConfigSettings settings)
{
this.serviceContext = serviceContext;
this.httpClient = httpClient;
this.configSettings = settings;
this.fabricClient = fabricClient;
this.RenewProxy();
}
/// <summary>
/// Initializes a new instance of the <see cref="ServiceDiscovery"/> class.
/// </summary>
/// <param name="fabricClient">Fabric client object</param>
public ServiceDiscovery(FabricClient fabricClient = null)
{
this.fabricClient = fabricClient ?? new FabricClient();
}
private FabricClient GetClient(string cluster)
{
FabricClient client = this.fabricClients.Get(cluster) as FabricClient;
if (client == null)
{
string clientName = Environment.GetEnvironmentVariable("COMPUTERNAME");
if (string.IsNullOrWhiteSpace(clientName))
{
try
{
clientName = System.Net.Dns.GetHostName();
}
catch (System.Net.Sockets.SocketException)
{
clientName = "";
}
}
clientName = clientName + "_" + this.serviceParameters.ReplicaId.ToString();
client = new FabricClient(
new FabricClientSettings
{
ClientFriendlyName = clientName,
ConnectionInitializationTimeout = TimeSpan.FromSeconds(30),
KeepAliveInterval = TimeSpan.FromSeconds(15),
},
cluster);
this.fabricClients.Add(
new CacheItem(cluster, client),
new CacheItemPolicy()
{
SlidingExpiration = this.cacheSlidingExpiration,
RemovedCallback = args =>
{
IDisposable fc = args.CacheItem.Value as IDisposable;
if (fc != null)
{
try
{
fc.Dispose();
}
catch
{
}
}
}
});
}
return client;
}
private static void Main(string[] args)
{
Console.WriteLine("Enter IoT Hub connection string: ");
connectionString = Console.ReadLine();
Console.WriteLine("Enter Service Fabric cluster address where your IoT project is deployed (or blank for local): ");
clusterAddress = Console.ReadLine();
registryManager = RegistryManager.CreateFromConnectionString(connectionString);
fabricClient = String.IsNullOrEmpty(clusterAddress)
? new FabricClient()
: new FabricClient(clusterAddress);
Task.Run(
async () =>
{
while (true)
{
try
{
devices = await registryManager.GetDevicesAsync(Int32.MaxValue);
tenants = (await fabricClient.QueryManager.GetApplicationListAsync())
.Where(x => x.ApplicationTypeName == Names.TenantApplicationTypeName)
.Select(x => x.ApplicationName.ToString().Replace(Names.TenantApplicationNamePrefix + "/", ""));
Console.WriteLine();
Console.WriteLine("Devices IDs: ");
foreach (Device device in devices)
{
Console.WriteLine(device.Id);
}
Console.WriteLine();
Console.WriteLine("Tenants: ");
foreach (string tenant in tenants)
{
Console.WriteLine(tenant);
}
Console.WriteLine();
Console.WriteLine("Commands:");
Console.WriteLine("1: Register a device");
Console.WriteLine("2: Register random devices");
Console.WriteLine("3: Send data from a device");
Console.WriteLine("4: Send data from all devices");
Console.WriteLine("5: Exit");
string command = Console.ReadLine();
switch (command)
{
case "1":
Console.WriteLine("Make up a device ID: ");
string deviceId = Console.ReadLine();
await AddDeviceAsync(deviceId);
break;
case "2":
Console.WriteLine("How many devices? ");
int num = Int32.Parse(Console.ReadLine());
await AddRandomDevicesAsync(num);
break;
case "3":
Console.WriteLine("Tenant: ");
string tenant = Console.ReadLine();
Console.WriteLine("Device id: ");
string deviceKey = Console.ReadLine();
await SendDeviceToCloudMessagesAsync(deviceKey, tenant);
break;
case "4":
Console.WriteLine("Tenant: ");
string tenantName = Console.ReadLine();
Console.WriteLine("Iterations: ");
int iterations = Int32.Parse(Console.ReadLine());
await SendAllDevices(tenantName, iterations);
break;
case "5":
return;
default:
break;
}
}
catch (Exception ex)
{
Console.WriteLine("Oops, {0}", ex.Message);
}
}
})
.GetAwaiter().GetResult();
}
private void PartitionResolutionChange(FabricClient source, long handlerId, ServicePartitionResolutionChange args)
{
if (args.HasException)
return;
var ac = FabricRuntime.GetActivationContext();
var node = FabricRuntime.GetNodeContext();
var sb = new StringBuilder($"{this.ServiceInitializationParameters.ServiceName}@{node.NodeName} PartitionResolutionChange");
var i = 0;
foreach (var endpoint in args.Result.Endpoints)
{
sb.AppendFormat($" {++i} {endpoint.Role} ");
var json = JObject.Parse(endpoint.Address);
var endpoints = (JObject)json["Endpoints"];
foreach (var ep in endpoints)
sb.Append($"{ep.Key}:{ep.Value} ");
}
eventSource.Message(sb.ToString());
}
private async Task<bool> BackupCallbackAzureAsync(BackupInfo backupInfo)
{
string backupId = Guid.NewGuid().ToString();
CancellationToken cancellationToken = default(CancellationToken);
long totalBackupCount;
IReliableDictionary<int, long> countDictionary = await this.StateManager.GetOrAddAsync<IReliableDictionary<int, long>>(this.countDictionaryName);
using (ITransaction txn = this.StateManager.CreateTransaction())
{
long count = await countDictionary.AddOrUpdateAsync(txn, 0, 0, (key, oldValue) => { return oldValue + 1; });
totalBackupCount = count;
await txn.CommitAsync();
}
ServiceEventSource.Current.Message("Backup count dictionary updated: " + totalBackupCount);
if ((totalBackupCount%10) == 0)
{
//Store no more than 10 backups at a time - the actual max might be a bit more than 10 since more backups could have been created when deletion was taking place. Keeps behind 5 backups.
await this.backupStore.DeleteBackupsAzureAsync(cancellationToken);
}
if ((totalBackupCount > 10) && (DateTime.Now.Second%20) == 0)
{
//Let's simulate a data loss every time the time is a multiple of 20 seconds, and a backup just completed.
ServiceEventSource.Current.ServiceMessage(this, "Restore Started");
using (FabricClient fabricClient = new FabricClient())
{
PartitionSelector partitionSelector = PartitionSelector.PartitionIdOf(
this.ServiceInitializationParameters.ServiceName,
this.ServiceInitializationParameters.PartitionId);
await fabricClient.ServiceManager.InvokeDataLossAsync(partitionSelector, DataLossMode.PartialDataLoss, cancellationToken);
}
}
ServiceEventSource.Current.Message("Backing up from directory, ID : " + backupInfo.Directory + " *** " + backupId);
try
{
await this.backupStore.UploadBackupFolderAsync(backupInfo.Directory, backupId, CancellationToken.None);
}
catch (Exception e)
{
ServiceEventSource.Current.ServiceMessage(this, "Uploading to backup folder failed: " + "{0} {1}" + e.GetType() + e.Message);
}
return true;
}
/// <summary>
/// Initializes a new instance of the <see cref="FabricObserverWeb"/> class.
/// </summary>
/// <param name="context">service context.</param>
public FabricObserverWeb(StatelessServiceContext context)
: base(context)
{
this.fabricClient = new FabricClient();
}
public EventHubListenerOptions(string currentPartitionId, Uri serviceName, FabricClient fabricClient = null) : this(currentPartitionId)
{
mServiceName = serviceName;
mFabricClient = null == fabricClient ? new FabricClient() : fabricClient;
}
public ServiceClient(FabricClient fabricClient)
{
fabricClient.ThrowIfNull(nameof(fabricClient));
this.fabricClient = fabricClient;
}
/// <summary>
/// Sends a health report in using a service fabric client for immediate transmission (no batching)
/// </summary>
/// <param name="report">The health report to send</param>
/// <param name="batchDelay">The maximum amount of time to wait before sending in an effort to batch transmission</param>
/// <param name="timeout">The time to wait before considering the send as timed out</param>
/// <param name="retryInterval">The amount of time to wait before sending the report again on failure</param>
public static void SubmitHealthReport(HealthReport report, TimeSpan? batchDelay = null, TimeSpan? timeout = null, TimeSpan? retryInterval = null)
{
var client = new FabricClient(new FabricClientSettings
{
HealthReportSendInterval = batchDelay ?? TimeSpan.FromSeconds(0),
HealthOperationTimeout = timeout ?? TimeSpan.FromSeconds(15),
HealthReportRetrySendInterval = retryInterval ?? TimeSpan.FromSeconds(50)
});
client.HealthManager.ReportHealth(report);
}
public FabricHelper(FabricClient fabricClient)
{
_fabricClient = fabricClient;
}
public DevicesController(FabricClient fabricClient, HttpClient httpClient, ServiceCancellation serviceCancellation)
{
this.fabricClient = fabricClient;
this.httpClient = httpClient;
this.serviceCancellationToken = serviceCancellation.Token;
}
/// <summary>
/// Creates Repair task for a node with executor set as Patch Orchestration Service
/// </summary>
/// <param name="fc">Fabric client object used for carrying out service fabric client requests</param>
/// <param name="nodeName">Node name for which repair task needs to be created</param>
/// <param name="taskDescription">Description of repair task which needs to be created</param>
/// <param name="resultDetails">Result details for the completed operation to make the repair task verbose</param>
/// <param name="executorData">Executor data associated with the repair task</param>
/// <param name="timeout">Timeout for the async operation</param>
/// <param name="cancellationToken">The cancellation token to cancel the async operation</param>
/// <returns>A Task representing the asnyc operation, result of task would be <see cref="NodeAgentSfUtilityExitCodes"/></returns>
internal static async Task <NodeAgentSfUtilityExitCodes> CreateRepairTaskForNode(FabricClient fc, string nodeName,
string taskDescription, string resultDetails, ExecutorDataForRmTask executorData, TimeSpan timeout,
CancellationToken cancellationToken)
{
string taskIdPrefix = string.Format("{0}_{1}", TaskIdPrefix, nodeName);
string taskId = string.Format("{0}_{1}", taskIdPrefix, Guid.NewGuid());
ClusterRepairTask repairTask = new ClusterRepairTask(taskId, RepairAction);
repairTask.Description = taskDescription;
repairTask.State = RepairTaskState.Claimed;
repairTask.Executor = ExecutorName;
repairTask.ExecutorData = SerializationUtility.Serialize(executorData);
repairTask.Target = new NodeRepairTargetDescription(nodeName);
repairTask.ResultDetails = resultDetails;
try
{
await fc.RepairManager.CreateRepairTaskAsync(repairTask, timeout, cancellationToken);
return(NodeAgentSfUtilityExitCodes.Success);
}
catch (Exception e)
{
ServiceEventSource.Current.ErrorMessage(
String.Format("RepairManagerHelper.CreateRepairTaskForNode failed. Exception details {0}", e));
if (e is FabricTransientException)
{
return(NodeAgentSfUtilityExitCodes.RetryableException);
}
else
{
return(NodeAgentSfUtilityExitCodes.Failure);
}
}
}
protected override async Task RunAsync(CancellationToken runAsyncCancellationToken)
{
// This is to keep track of exceptions in the validation step at the end of
// each iteration of the ChaosTestScenario that is being used under the cover
//
bool validationExceptionCaught = false;
IReliableDictionary <string, CurrentState> chaosServiceState =
await this.StateManager.GetOrAddAsync <IReliableDictionary <string, CurrentState> >(StringResource.ChaosServiceStateKey);
using (ITransaction tx = this.StateManager.CreateTransaction())
{
if (!await chaosServiceState.ContainsKeyAsync(tx, StringResource.ChaosServiceStateKey, LockMode.Update))
{
await chaosServiceState.AddAsync(tx, StringResource.ChaosServiceStateKey, CurrentState.Stopped);
}
await tx.CommitAsync();
}
while (!runAsyncCancellationToken.IsCancellationRequested)
{
try
{
// check to see if we're in a "stop" or "start" state.
// this continues to poll until we're in a "start" state.
// a ReliableDictionary is used to store this information so that if the service
// fails over to another node, the state is preserved and the chaos test will continue to execute.
using (ITransaction tx = this.StateManager.CreateTransaction())
{
ConditionalValue <CurrentState> currentStateResult =
await chaosServiceState.TryGetValueAsync(tx, StringResource.ChaosServiceStateKey);
if (currentStateResult.HasValue &&
(currentStateResult.Value == CurrentState.Stopped ||
currentStateResult.Value == CurrentState.None))
{
await Task.Delay(Constants.IntervalBetweenLoopIteration, runAsyncCancellationToken);
continue;
}
}
// this section runs the actual chaos test.
// the cancellation token source is linked to the token provided to RunAsync so that we
// can stop the test if the service needs to shut down.
using (FabricClient fabricClient = new FabricClient())
{
using (this.stopEventTokenSource = CancellationTokenSource.CreateLinkedTokenSource(runAsyncCancellationToken))
{
// when a validation exception is caught, this waits for a while to let the cluster stabilize before continuing.
if (validationExceptionCaught)
{
await Task.Delay(ChaosTestConfigSettings.MaxClusterStabilizationTimeout, this.stopEventTokenSource.Token);
validationExceptionCaught = false;
}
ChaosTestScenarioParameters chaosScenarioParameters =
new ChaosTestScenarioParameters(
ChaosTestConfigSettings.MaxClusterStabilizationTimeout,
ChaosTestConfigSettings.MaxConcurrentFaults,
ChaosTestConfigSettings.EnableMoveReplicaFaults,
TimeSpan.MaxValue)
{
WaitTimeBetweenFaults =
ChaosTestConfigSettings.WaitTimeBetweenFaults,
WaitTimeBetweenIterations =
ChaosTestConfigSettings.WaitTimeBetweenIterations
};
ChaosTestScenario chaosTestScenario = new ChaosTestScenario(fabricClient, chaosScenarioParameters);
// capture progress events so we can report them back
chaosTestScenario.ProgressChanged += this.TestScenarioProgressChanged;
// this continuously runs the chaos test until the CancellationToken is signaled.
await chaosTestScenario.ExecuteAsync(this.stopEventTokenSource.Token);
}
}
}
catch (TimeoutException e)
{
string message = $"Caught TimeoutException '{e.Message}'. Will wait for cluster to stabilize before continuing test";
ServiceEventSource.Current.ServiceMessage(this, message);
validationExceptionCaught = true;
await this.StoreEventAsync(message);
}
catch (FabricValidationException e)
{
string message = $"Caught FabricValidationException '{e.Message}'. Will wait for cluster to stabilize before continuing test";
ServiceEventSource.Current.ServiceMessage(this, message);
validationExceptionCaught = true;
await this.StoreEventAsync(message);
}
catch (OperationCanceledException)
{
if (runAsyncCancellationToken.IsCancellationRequested)
{
// if RunAsync is canceled then we need to quit.
throw;
}
ServiceEventSource.Current.ServiceMessage(
this,
"Caught OperationCanceledException Exception during test execution. This is expected if test was stopped");
}
catch (AggregateException e)
{
if (e.InnerException is OperationCanceledException)
{
if (runAsyncCancellationToken.IsCancellationRequested)
{
// if RunAsync is canceled then we need to quit.
throw;
}
ServiceEventSource.Current.ServiceMessage(
this,
"Caught OperationCanceledException Exception during test execution. This is expected if test was stopped");
}
else
{
string message = $"Caught unexpected Exception during test excecution {e.InnerException}";
ServiceEventSource.Current.ServiceMessage(this, message);
await this.StoreEventAsync(message);
}
}
catch (Exception e)
{
string message = $"Caught unexpected Exception during test excecution {e}";
ServiceEventSource.Current.ServiceMessage(this, message);
await this.StoreEventAsync(message);
}
}
}
public async Task <Dictionary <String, List <List <String> > > > GetApplicationsServices(FabricClient primaryfc, String primarycs, FabricClient secondaryfc, String secondarycs)
{
Dictionary <String, List <List <String> > > applicationsServicesMap = new Dictionary <String, List <List <String> > >();
FabricClient.QueryClient queryClient = primaryfc.QueryManager;
ApplicationList appsList = await queryClient.GetApplicationListAsync();
HashSet <String> configuredApplications = await GetConfiguredApplications(primarycs, secondarycs);
HashSet <String> configuredServices = await GetConfiguredServices();
HashSet <String> secServices = new HashSet <string>();
foreach (Application application in appsList)
{
string applicationName = application.ApplicationName.ToString();
string applicationStatus = "NotConfigured";
ServiceList services = await primaryfc.QueryManager.GetServiceListAsync(new Uri(applicationName));
ServiceList secondaryServices;
try
{
secondaryServices = await secondaryfc.QueryManager.GetServiceListAsync(new Uri(applicationName));
foreach (Service service in secondaryServices)
{
secServices.Add(service.ServiceName.ToString());
}
}
catch (System.Fabric.FabricElementNotFoundException e)
{
ServiceEventSource.Current.Message("Web Service: Could not find application on secondary cluster: {0}", e);
applicationStatus = "NotExist";
}
catch (Exception e)
{
ServiceEventSource.Current.Message("Web Service: Exception with Fabric Client Query Manager {0}", e);
throw;
}
if (configuredApplications.Contains(applicationName))
{
applicationStatus = "Configured";
}
List <List <String> > serviceList = new List <List <String> >();
List <String> appStatusList = new List <String>();
appStatusList.Add(applicationName);
appStatusList.Add(applicationStatus);
serviceList.Add(appStatusList);
foreach (Service service in services)
{
List <String> serviceInfo = new List <String>();
string serviceName = service.ServiceName.ToString();
if (secServices.Contains(serviceName))
{
if (configuredServices.Contains(serviceName))
{
//Configured
serviceInfo.Add(serviceName);
serviceInfo.Add("Configured");
}
else if (service.ServiceKind == ServiceKind.Stateless)
{
//Stateless
serviceInfo.Add(serviceName);
serviceInfo.Add("Stateless");
}
else
{
//NotConfigured
serviceInfo.Add(serviceName);
serviceInfo.Add("NotConfigured");
}
}
else
{
//NotExist
serviceInfo.Add(serviceName);
serviceInfo.Add("NotExist");
}
serviceList.Add(serviceInfo);
}
applicationsServicesMap.Add(applicationName, serviceList);
}
return(applicationsServicesMap);
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(
IApplicationBuilder app,
IHostingEnvironment env,
ILoggerFactory loggerFactory,
Resolver resolver,
FabricClient fabClient)
{
app.Map("/list/services", subApp =>
{
subApp.Run(async h =>
{
var services = await resolver.ListAvailableServices();
var jsonResponse = JsonConvert.SerializeObject(services, Formatting.Indented);
await h.Response.WriteAsync(jsonResponse);
});
});
app.Map("/list/usage", subApp =>
{
subApp.Run(async h =>
{
if (ServiceRouter.RedisConnection == null)
{
ServiceRouter.RedisConnection = ConnectionMultiplexer.Connect(await resolver.ResolveEndpoint(Constants.RedisServiceAddress));
}
IDatabase redisDb = ServiceRouter.RedisConnection.GetDatabase();
var services = await resolver.ListAvailableServices();
var usageStats = new Dictionary<string, long>();
foreach (var service in services)
{
var hitCount = await redisDb.ListLengthAsync($"/{service.ApplicationName}/{service.ServiceName}");
usageStats.Add(service.FabricAddress.ToString(), hitCount);
}
var jsonResponse = JsonConvert.SerializeObject(usageStats, Formatting.Indented);
await h.Response.WriteAsync(jsonResponse);
});
});
app.Map("/list/endpoints", subApp =>
{
subApp.Run(async h =>
{
var services = await resolver.ListServiceEndpoints();
var jsonResponse = JsonConvert.SerializeObject(new { Results = services }, Formatting.Indented);
await h.Response.WriteAsync(jsonResponse);
});
});
app.Map("/route", subApp =>
{
subApp.UseMiddleware<GatewayMiddleware>(resolver);
});
app.Map("/health", subApp =>
{
subApp.Run(async hrequest =>
{
await hrequest.Response.WriteAsync("A OK!");
});
});
app.Run(async context =>
{
await context.Response.WriteAsync(Constants.HelpText);
});
}
static SF_Services()
{
try
{
partitions_ = null;
if (EnvoyDefaults.client_cert_subject_name != null)
{
X509Credentials creds = new X509Credentials();
creds.FindType = X509FindType.FindBySubjectName;
creds.FindValue = EnvoyDefaults.client_cert_subject_name;
if (EnvoyDefaults.client_cert_issuer_thumbprints != null)
{
foreach (var issuer in EnvoyDefaults.client_cert_issuer_thumbprints)
{
creds.IssuerThumbprints.Add(issuer);
}
}
if (EnvoyDefaults.server_cert_common_names != null)
{
foreach (var commonName in EnvoyDefaults.server_cert_common_names)
{
creds.RemoteCommonNames.Add(commonName);
}
}
else
{
creds.RemoteCommonNames.Add(EnvoyDefaults.client_cert_subject_name);
}
if (EnvoyDefaults.server_cert_issuer_thumbprints != null)
{
foreach (var issuer in EnvoyDefaults.server_cert_issuer_thumbprints)
{
creds.RemoteCertThumbprints.Add(issuer);
}
}
else if (EnvoyDefaults.client_cert_issuer_thumbprints != null)
{
foreach (var issuer in EnvoyDefaults.client_cert_issuer_thumbprints)
{
creds.RemoteCertThumbprints.Add(issuer);
}
}
creds.StoreLocation = StoreLocation.LocalMachine;
creds.StoreName = "/app/sfcerts";
client = new FabricClient(creds, EnvoyDefaults.fabricUri);
}
else
{
client = new FabricClient(EnvoyDefaults.fabricUri);
}
EnvoyDefaults.LogMessage("Client sucessfully created");
EnableResolveNotifications.RegisterNotificationFilter("fabric:", client, Handler);
EnvoyDefaults.LogMessage("Notification handler sucessfully set");
}
catch (Exception e)
{
EnvoyDefaults.LogMessage(String.Format("Error={0}", e));
}
}
public WebService(StatelessServiceContext context)
: base(context)
{
this.fabricClient = new FabricClient();
}
public RoomsController(HttpClient httpClient, StatelessServiceContext context, FabricClient fabricClient)
{
this.fabricClient = fabricClient;
this.httpClient = httpClient;
this.serviceContext = context;
}