public static async Task Main(string[] args)
{
// Connect to Cadence
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
// Register your workflow and activity implementations to let
// Cadence know we're open for business.
await client.RegisterAssemblyAsync(System.Reflection.Assembly.GetExecutingAssembly());
await client.StartWorkerAsync("my-tasks");
// Invoke the workflow.
var workflowStub = client.NewWorkflowStub <IEmailWorkflow>();
await workflowStub.SendMessagesAsync();
}
}
public static async Task Main(string[] args)
{
try
{
var settings = new CadenceSettings("cadence://localhost:7933")
{
DefaultDomain = "test-domain",
CreateDomain = true
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
await client.RegisterAssemblyAsync(Assembly.GetExecutingAssembly());
await client.StartWorkerAsync(taskList : "hello-tasks");
//-------------------------------------
// Submit an order to: IOrderWorkflow1
var stub1 = client.NewWorkflowStub <IOrderWorkflow1>();
var orderTask1 = stub1.ProcessAsync();
// Attempt to cancel it via a synchronous signal.
var cancelled1 = await stub1.CancelAsync();
// Wait for order processing to complete. The result will
// be FALSE if the order was cancelled.
var result1 = await orderTask1;
//-------------------------------------
// Submit an order to: IOrderWorkflow2
var stub2 = client.NewWorkflowStub <IOrderWorkflow2>();
var orderTask2 = stub2.ProcessAsync();
// Attempt to cancel it via a synchronous signal.
var cancelled2 = await stub2.CancelAsync();
// Wait for order processing to complete. The result will
// be FALSE if the order was cancelled.
var result2 = await orderTask2;
//-------------------------------------
Console.WriteLine($"RESULT-1: {result1}");
Console.WriteLine($"RESULT-2: {result2}");
}
}
catch (ConnectException)
{
Console.Error.WriteLine("Cannot connect to Cadence. Be sure you've started a");
Console.Error.WriteLine("local Cadence Docker container via:");
Console.Error.WriteLine();
Console.Error.WriteLine("docker run --detach --name cadence-dev -p 7933-7939:7933-7939 -p 8088:8088 nkubeio/cadence-dev");
}
}
public async Task Connect_Twice()
{
await SyncContext.Clear;
// We're going to establish two successive client connections
// and verify that these work.
using (var client = await CadenceClient.ConnectAsync(fixture.Settings))
{
await client.RegisterWorkflowAsync <WorkflowWithResult3>();
using (await client.StartWorkerAsync("tasklist-3"))
{
var stub1 = client.NewWorkflowStub <IWorkflowWithResult3>();
Assert.Equal("WF3 says: Hello Jack!", await stub1.HelloAsync("Jack"));
}
}
using (var client = await CadenceClient.ConnectAsync(fixture.Settings))
{
await client.RegisterWorkflowAsync <WorkflowWithResult4>();
using (await client.StartWorkerAsync("tasklist-4"))
{
var stub1 = client.NewWorkflowStub <IWorkflowWithResult4>();
Assert.Equal("WF4 says: Hello Jack!", await stub1.HelloAsync("Jack"));
}
}
}
public static async Task Main(string[] args)
{
try
{
var settings = new CadenceSettings("cadence://localhost:7933")
{
DefaultDomain = "test-domain",
CreateDomain = true
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
await client.RegisterAssemblyAsync(Assembly.GetExecutingAssembly());
await client.StartWorkerAsync(taskList : "hello-tasks");
var stub = client.NewWorkflowStub <IHelloWorkflow>();
var result = await stub.HelloAsync("Sally");
Console.WriteLine($"RESULT: {result}");
}
}
catch (ConnectException)
{
Console.Error.WriteLine("Cannot connect to Cadence. Be sure you've started a");
Console.Error.WriteLine("local Cadence Docker container via:");
Console.Error.WriteLine();
Console.Error.WriteLine("docker run --detach --name cadence-dev -p 7933-7939:7933-7939 -p 8088:8088 nkubeio/cadence-dev");
}
}
public async Task Workflow_ExternalIdNoReuse()
{
await SyncContext.ClearAsync;
// Verify that default Cadence settings reject duplicate workflow IDs.
Assert.Equal(WorkflowIdReusePolicy.AllowDuplicateFailedOnly, fixture.Settings.WorkflowIdReusePolicy);
using (var client = await CadenceClient.ConnectAsync(fixture.Settings))
{
await client.RegisterAssemblyAsync(Assembly.GetExecutingAssembly());
await client.StartWorkerAsync(CadenceTestHelper.TaskList);
var options = new WorkflowOptions()
{
WorkflowId = $"Workflow_ExternalIdNoReuse-{Guid.NewGuid().ToString("d")}"
};
// Do the first run; this should succeed.
var stub = client.NewWorkflowStub <IWorkflowIdReuse>(options);
Assert.Equal("Hello Jack!", await stub.HelloAsync("Jack"));
// Do the second run with the same ID. This shouldn't actually start
// another workflow and will return the result from the original
// workflow instead.
stub = client.NewWorkflowStub <IWorkflowIdReuse>(options);
Assert.Equal("Hello Jack!", await stub.HelloAsync("Jill"));
}
}
public static async Task Main(string[] args)
{
// Connect to Cadence
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
// Register your workflow implementation to let Cadence
// know we're open for business.
await client.RegisterWorkflowAsync <HelloWorkflow>();
await client.StartWorkerAsync("my-tasks");
// Invoke your workflow.
var stub = client.NewWorkflowStub <IHelloWorkflow>();
Console.WriteLine(await stub.HelloAsync("Jeff"));
}
}
public static async Task Main(string[] args)
{
// Connect to Cadence
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://*****:*****@my-company.com", "Jeff");
}
}
public async Task Workflow_ExternalIdReuseViaSettings()
{
await SyncContext.ClearAsync;
// Verify that we can reuse a workflow ID for an external
// workflow via client settings.
var settings = fixture.Settings.Clone();
settings.WorkflowIdReusePolicy = WorkflowIdReusePolicy.AllowDuplicate;
using (var client = await CadenceClient.ConnectAsync(settings))
{
await client.RegisterAssemblyAsync(Assembly.GetExecutingAssembly());
await client.StartWorkerAsync(CadenceTestHelper.TaskList);
var options = new WorkflowOptions()
{
WorkflowId = $"Workflow_ExternalIdReuseViaOptions-{Guid.NewGuid().ToString("d")}"
};
// Do the first run.
var stub = client.NewWorkflowStub <IWorkflowIdReuse>(options);
Assert.Equal("Hello Jack!", await stub.HelloAsync("Jack"));
// Do the second run.
stub = client.NewWorkflowStub <IWorkflowIdReuse>(options);
Assert.Equal("Hello Jill!", await stub.HelloAsync("Jill"));
}
}
/// <summary>
/// Called when an already started fixture is being restarted. This
/// establishes a fresh Cadence connection.
/// </summary>
public override void OnRestart()
{
if (keepConnection)
{
// We're going to continue using the same connection.
return;
}
// Close any existing connection related objects.
if (Connection != null)
{
Connection.Dispose();
Connection = null;
}
if (ConnectionClient != null)
{
ConnectionClient.Dispose();
ConnectionClient = null;
}
// Establish fresh connections.
Connection = CadenceClient.ConnectAsync(settings).Result;
ConnectionClient = new HttpClient()
{
BaseAddress = Connection.ListenUri
};
}
public static async Task Main(string[] args)
{
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
await client.RegisterAssemblyAsync(System.Reflection.Assembly.GetExecutingAssembly());
await client.StartWorkerAsync("my-tasks");
// Invoke the workflow and then query it's status a few times.
var stub = client.NewWorkflowStub <IMyWorkflow>();
var task = stub.DoItAsync();
for (int i = 0; i < 5; i++)
{
await Task.Delay(TimeSpan.FromSeconds(2.5));
Console.WriteLine(await stub.GetStatusAsync());
}
await task;
}
}
public Test_FixtureNoConnect(CadenceFixture fixture)
{
var settings = new CadenceSettings()
{
DefaultDomain = CadenceFixture.DefaultDomain,
LogLevel = CadenceTestHelper.LogLevel,
CreateDomain = true,
Debug = CadenceTestHelper.Debug,
DebugPrelaunched = CadenceTestHelper.DebugPrelaunched,
DebugDisableHeartbeats = CadenceTestHelper.DebugDisableHeartbeats
};
if (fixture.Start(settings, keepConnection: true, keepOpen: CadenceTestHelper.KeepCadenceServerOpen, noClient: true) == TestFixtureStatus.Started)
{
this.fixture = fixture;
this.client = fixture.Client = CadenceClient.ConnectAsync(fixture.Settings).Result;
// Auto register the test workflow and activity implementations.
client.RegisterAssemblyAsync(Assembly.GetExecutingAssembly()).Wait();
// Start the worker.
client.StartWorkerAsync(CadenceTestHelper.TaskList).Wait();
}
else
{
this.fixture = fixture;
this.client = fixture.Client;
}
}
public static async Task Main(string[] args)
{
// Connect to Cadence
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
var stub = client.NewWorkflowFutureStub <ICronWorkflow>(
"backup",
new WorkflowOptions()
{
// Run the workflow every day at 1:00am UTC:
CronSchedule = "0 1 * * *"
});;
await stub.StartAsync();
}
}
/// <summary>
/// Used to start the fixture within a <see cref="ComposedFixture"/>.
/// </summary>
/// <param name="settings">Optional Cadence settings.</param>
/// <param name="image">Optionally specifies the Cadence container image (defaults to <b>nkubeio/cadence-test:latest</b>).</param>
/// <param name="name">Optionally specifies the Cadence container name (defaults to <c>cb-test</c>).</param>
/// <param name="env">Optional environment variables to be passed to the Cadence container, formatted as <b>NAME=VALUE</b> or just <b>NAME</b>.</param>
/// <param name="defaultDomain">Optionally specifies the default domain for the fixture's client. This defaults to <b>test-domain</b>.</param>
/// <param name="defaultTaskList">Optionally specifies the default task list for the fixture's client. This defaults to <b>test-tasks</b>.</param>
/// <param name="keepConnection">
/// Optionally specifies that a new Cadence connection <b>should not</b> be established for each
/// unit test case. The same connection will be reused which will save about a second per test.
/// </param>
/// <param name="keepOpen">
/// Optionally indicates that the container should continue to run after the fixture is disposed.
/// </param>
/// <param name="emulateProxy">
/// <b>INTERNAL USE ONLY:</b> Optionally starts a partially functional integrated
/// <b>cadence-proxy</b> for low-level testing. Most users should never enable this
/// because it's probably not going to do what you expect.
/// </param>
/// <remarks>
/// <note>
/// A fresh Cadence client <see cref="Connection"/> will be established every time this
/// fixture is started, regardless of whether the fixture has already been started. This
/// ensures that each unit test will start with a client in the default state.
/// </note>
/// </remarks>
public void StartAsComposed(
CadenceSettings settings = null,
string image = "nkubeio/cadence-test:latest",
string name = "cadence-test",
string[] env = null,
string defaultDomain = DefaultDomain,
string defaultTaskList = DefaultTaskList,
bool keepConnection = false,
bool keepOpen = false,
bool emulateProxy = false)
{
Covenant.Requires <ArgumentNullException>(!string.IsNullOrEmpty(image));
base.CheckWithinAction();
if (!IsRunning)
{
// Start the fixture
base.StartAsComposed(name, image,
new string[]
{
"--detach",
"-p", "7933-7939:7933-7939",
"-p", "8088:8088"
},
env: env,
keepOpen: keepOpen);
Thread.Sleep(warmupDelay);
// Initialize the settings.
settings = settings ?? new CadenceSettings()
{
CreateDomain = true,
DefaultDomain = defaultDomain,
DefaultTaskList = defaultTaskList
};
settings.Servers.Clear();
settings.Servers.Add($"http://localhost:{NetworkPorts.Cadence}");
settings.Emulate = emulateProxy || settings.Emulate;
this.settings = settings;
this.keepConnection = keepConnection;
// Establish the Cadence connection.
Connection = CadenceClient.ConnectAsync(settings).Result;
ConnectionClient = new HttpClient()
{
BaseAddress = Connection.ListenUri
};
}
}
public static async Task UntypedStub()
{
#region code_untyped
var settings = new CadenceSettings()
{
// This specifies the default domain for operations initiated by the
// client connected below (this can be overridden for specific
// operations.
DefaultDomain = "Acme-PROD",
// Host/port for at least one of the Cadence cluster servers:
Servers = new List <string>()
{
"cadence://*****:*****@lilltek.com", "Test subject", "This is a test email.");
// Wait for the workflow to complete and return it's result. Note that we need
// to explicitly specify the result [bool] type as a generic type parameter.
// You need to ensure that this matches the workflow implementation as well.
var success = await stub.GetResultAsync <bool>();
if (success)
{
Console.WriteLine("Email SENT!");
}
else
{
Console.WriteLine("Email FAILED!");
}
}
#endregion
}
public static async Task Main(string[] args)
{
// Initialize the logger.
LogManager.Default.SetLogLevel("info");
logger = LogManager.Default.GetLogger(typeof(Program));
logger.LogInfo("Starting workflow service");
try
{
// Connect to Cadence
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
// Register your workflow and activity implementations to let
// Cadence know we're open for business.
await client.RegisterAssemblyAsync(System.Reflection.Assembly.GetExecutingAssembly());
await client.StartWorkerAsync("my-tasks");
// Spin forever, processing workflows and activities assigned by Cadence.
while (true)
{
await Task.Delay(TimeSpan.FromMinutes(5));
}
}
}
catch (Exception e)
{
logger.LogError(e);
}
finally
{
logger.LogInfo("Exiting workflow service");
}
}
public static async Task Main(string[] args)
{
// Configure the settings name such that they will be injected
// into the email activity when it's constructed.
//
// Note that we did this before calling RegisterAssemblyAsync() below.
// Dependencies added after activities have been registered will be
// ignored.
NeonHelper.ServiceContainer.AddSingleton(typeof(MailSettings), new MailSettings()
{
MailServer = "mail.my-company.com"
});
// Connect to Cadence
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
// Register your workflow and activity implementations to let
// Cadence know we're open for business.
await client.RegisterAssemblyAsync(System.Reflection.Assembly.GetExecutingAssembly());
await client.StartWorkerAsync("my-tasks");
// Invoke the workflow.
var workflowStub = client.NewWorkflowStub <IEmailWorkflow>();
await workflowStub.SendMessagesAsync();
}
}
public static async Task Main(string[] args)
{
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
await client.RegisterAssemblyAsync(System.Reflection.Assembly.GetExecutingAssembly());
await client.StartWorkerAsync("my-tasks");
// Invoke the workflow, send it some signals and very that
// it changed its state to the signal value.
var stub = client.NewWorkflowStub <IMyWorkflow>();
var task = stub.DoItAsync();
await stub.SignalAsync("signal #1");
Console.WriteLine(await stub.GetStatusAsync());
await stub.SignalAsync("signal #2");
Console.WriteLine(await stub.GetStatusAsync());
// This signal completes the workflow.
await stub.SignalAsync("done");
await task;
}
}
public static async Task Main(params string[] args)
{
var settings = new CadenceSettings()
{
// This specifies the default domain for operations initiated by the
// client connected below (this can be overridden for specific
// operations.
DefaultDomain = "Acme-PROD",
// Host/port for at least one of the Cadence cluster servers:
Servers = new List <string>()
{
"cadence://*****:*****@lilltek.com", "Test subject", "This is a test email.");
if (success)
{
Console.WriteLine("Email SENT!");
}
else
{
Console.WriteLine("Email FAILED!");
}
}
}
/// <summary>
/// Closes the existing Cadence connection and then restarts the Cadence
/// server and establishes a new connection.
/// </summary>
public new void Restart()
{
// Disconnect.
Connection.Dispose();
Connection = null;
ConnectionClient.Dispose();
ConnectionClient = null;
// Restart the Cadence container.
base.Restart();
// Reconnect.
Connection = CadenceClient.ConnectAsync(settings).Result;
ConnectionClient = new HttpClient()
{
BaseAddress = Connection.ListenUri
};
}
public async Task Simultaneous()
{
await SyncContext.Clear;
// We're going to establish two simultaneous client connections,
// register a workflow on each, and then verify that these workflows work.
using (var client1 = await CadenceClient.ConnectAsync(fixture.Settings))
{
await client1.RegisterWorkflowAsync <WorkflowWithResult1>();
await client1.StartWorkerAsync("tasklist-1");
using (var client2 = await CadenceClient.ConnectAsync(fixture.Settings))
{
await client2.RegisterWorkflowAsync <WorkflowWithResult2>();
await client2.StartWorkerAsync("tasklist-2");
var options1 = new WorkflowOptions()
{
TaskList = "tasklist-1"
};
var options2 = new WorkflowOptions()
{
TaskList = "tasklist-2"
};
var stub1 = client1.NewWorkflowStub <IWorkflowWithResult1>(options: options1);
var stub2 = client2.NewWorkflowStub <IWorkflowWithResult2>(options: options2);
Assert.Equal("WF1 says: Hello Jeff!", await stub1.HelloAsync("Jeff"));
Assert.Equal("WF2 says: Hello Jeff!", await stub2.HelloAsync("Jeff"));
}
}
}
public static async Task Main(string[] args)
{
// Connect to Cadence
var settings = new CadenceSettings()
{
DefaultDomain = "my-domain",
CreateDomain = true,
Servers = new List <string>()
{
"cadence://localhost:7933"
}
};
using (var client = await CadenceClient.ConnectAsync(settings))
{
// Register your workflow implementation to let Cadence
// know we're open for business.
await client.RegisterWorkflowAsync <HelloWorkflow>();
await client.StartWorkerAsync("my-tasks");
#region code
// Invoke a workflow with options:
var stub = client.NewWorkflowStub <IHelloWorkflow>(
new WorkflowOptions()
{
WorkflowId = "my-ultimate-workflow",
ScheduleToStartTimeout = TimeSpan.FromMinutes(5)
});
Console.WriteLine(await stub.HelloAsync("Jeff"));
#endregion
}
}
/// <summary>
/// Used to start the fixture within a <see cref="ComposedFixture"/>.
/// </summary>
/// <param name="settings">Optional Cadence settings.</param>
/// <param name="name">Optionally specifies the Cadence container name (defaults to <c>cadence-dev</c>).</param>
/// <param name="composeFile">
/// <para>
/// Optionally specifies the Temporal Docker compose file text. This defaults to
/// <see cref="DefaultComposeFile"/> which configures Temporal server to start with
/// a new Cassandra database instance listening on port <b>9042</b> as well as the
/// Temporal web UI running on port <b>8088</b>. Temporal server is listening on
/// its standard gRPC port <b>7233</b>.
/// </para>
/// <para>
/// You may specify your own Docker compose text file to customize this by configuring
/// a different backend database, etc.
/// </para>
/// </param>
/// <param name="defaultDomain">Optionally specifies the default domain for the fixture's client. This defaults to <b>test-domain</b>.</param>
/// <param name="logLevel">Specifies the Cadence log level. This defaults to <see cref="Neon.Diagnostics.LogLevel.None"/>.</param>
/// <param name="reconnect">
/// Optionally specifies that a new Cadence connection <b>should</b> be established for each
/// unit test case. By default, the same connection will be reused which will save about a
/// second per test case.
/// </param>
/// <param name="keepRunning">
/// Optionally indicates that the container should remain running after the fixture is disposed.
/// This is handy for using the Temporal web UI for port mortems after tests have completed.
/// </param>
/// <param name="noClient">
/// Optionally disables establishing a client connection when <c>true</c>
/// is passed. The <see cref="Client"/> and <see cref="HttpClient"/> properties
/// will be set to <c>null</c> in this case.
/// </param>
/// <param name="noReset">
/// Optionally prevents the fixture from calling <see cref="CadenceClient.Reset()"/> to
/// put the Cadence client library into its initial state before the fixture starts as well
/// as when the fixture itself is reset.
/// </param>
/// <remarks>
/// <note>
/// A fresh Cadence client <see cref="Client"/> will be established every time this
/// fixture is started, regardless of whether the fixture has already been started. This
/// ensures that each unit test will start with a client in the default state.
/// </note>
/// </remarks>
public void StartAsComposed(
CadenceSettings settings = null,
string name = "cadence-dev",
string composeFile = DefaultComposeFile,
string defaultDomain = DefaultDomain,
LogLevel logLevel = LogLevel.None,
bool reconnect = false,
bool keepRunning = false,
bool noClient = false,
bool noReset = false)
{
Covenant.Requires <ArgumentNullException>(!string.IsNullOrEmpty(composeFile), nameof(composeFile));
base.CheckWithinAction();
if (!IsRunning)
{
// $hack(jefflill):
//
// The [temporal-dev] Docker test stack may be running from a previous test run.
// We need to stop this to avoid network port conflicts. We're just going to
// force the removal of the stack's Docker containers.
//
// This is somewhat fragile because it hardcodes the container names and won't
// remove any other stack assets like networks.
NeonHelper.ExecuteCapture(NeonHelper.DockerCli,
new object[]
{
"rm", "--force",
new string[]
{
"temporal-dev_cassandra_1",
"temporal-dev_temporal-web_1",
"temporal-dev_temporal_1"
}
});
// Reset CadenceClient to its initial state.
this.noReset = noReset;
if (!noReset)
{
CadenceClient.Reset();
}
// Start the Cadence container.
base.StartAsComposed(name, composeFile, keepRunning);
// It can take Cadence server some time to start. Rather than relying on [cadence-proxy]
// to handle retries (which may take longer than the connect timeout), we're going to wait
// up to 4 minutes for Temporal to start listening on its RPC socket.
var retry = new LinearRetryPolicy(e => true, maxAttempts: int.MaxValue, retryInterval: TimeSpan.FromSeconds(0.5), timeout: TimeSpan.FromMinutes(4));
retry.Invoke(
() =>
{
// The [socket.Connect()] calls below will throw [SocketException] until
// Temporal starts listening on its RPC socket.
var socket = new Socket(AddressFamily.InterNetworkV6, SocketType.Stream, ProtocolType.Tcp);
socket.Connect(IPAddress.IPv6Loopback, NetworkPorts.Cadence);
socket.Close();
});
Thread.Sleep(TimeSpan.FromSeconds(5)); // Wait a bit longer for luck!
// Initialize the settings.
settings = settings ?? new CadenceSettings()
{
CreateDomain = true,
DefaultDomain = defaultDomain,
LogLevel = logLevel
};
if (settings.Servers.Count == 0)
{
settings.Servers.Add($"http://localhost:{NetworkPorts.Cadence}");
}
this.settings = settings;
this.reconnect = reconnect;
if (!noClient)
{
// Establish the Cadence connection via the cadence proxy.
Client = CadenceClient.ConnectAsync(settings).Result;
HttpClient = new HttpClient()
{
BaseAddress = Client.ListenUri
};
}
}
}
/// <inheritdoc/>
protected async override Task <int> OnRunAsync()
{
// Verify the environment variables.
var settings = new CadenceSettings();
var servers = GetEnvironmentVariable("CADENCE_SERVERS");
var domain = GetEnvironmentVariable("CADENCE_DOMAIN");
var taskList = GetEnvironmentVariable("CADENCE_TASKLIST");
var error = false;
Log.LogInfo(() => $"CADENCE_SERVERS: {servers}");
Log.LogInfo(() => $"CADENCE_DOMAIN: {domain}");
Log.LogInfo(() => $"CADENCE_TASKLIST: {taskList}");
if (string.IsNullOrEmpty(servers))
{
error = true;
Log.LogError("The [CADENCE_SERVERS] environment variable is required.");
}
try
{
foreach (var item in servers.Split(','))
{
var uri = new Uri(item.Trim(), UriKind.Absolute);
settings.Servers.Add(uri.ToString());
}
}
catch
{
error = true;
Log.LogError(() => $"One or more URIs are invalid: CADENCE_SERVERS={servers}");
}
if (string.IsNullOrEmpty(domain))
{
error = true;
Log.LogError("The [CADENCE_DOMAIN] environment variable is required.");
}
if (string.IsNullOrEmpty(taskList))
{
error = true;
Log.LogError("The [CADENCE_TASKLIST] environment variable is required.");
}
if (error)
{
return(1);
}
// Connect to Cadence and register the workflows and activities.
Log.LogInfo("Connecting to Cadence.");
settings.DefaultDomain = domain;
using (var client = await CadenceClient.ConnectAsync(settings))
{
// Register the workflows.
Log.LogInfo("Registering workflows.");
await client.RegisterAssemblyAsync(Assembly.GetExecutingAssembly());
// Start the worker.
Log.LogInfo("Starting worker.");
using (var worker = client.StartWorkerAsync(taskList))
{
// Let KubeService know that we're running.
Log.LogInfo("Ready for work.");
SetRunning();
// Wait for the process terminator to signal that the service is stopping.
await Terminator.StopEvent.WaitAsync();
}
}
return(0);
}
public async Task Multiple_TaskLists()
{
await SyncContext.Clear;
// Test the scenario where there multiple clients without
// workers that will be used to simulate apps that make calls
// on workflows and then create multiple clients that register
// different workflows and activities and then verify that
// each of the workerless clients are able to execute workflows
// and activities and that these end up being executed on the
// correct clients.
var clients = new List <CadenceClient>();
try
{
// Initialize the non-worker clients.
CadenceClient client1;
CadenceClient client2;
CadenceClient client3;
clients.Add(client1 = await CadenceClient.ConnectAsync(fixture.Settings));
clients.Add(client2 = await CadenceClient.ConnectAsync(fixture.Settings));
clients.Add(client3 = await CadenceClient.ConnectAsync(fixture.Settings));
// Initialize the worker clients.
clients.Add(workerClient1 = await CadenceClient.ConnectAsync(fixture.Settings));
clients.Add(workerClient2 = await CadenceClient.ConnectAsync(fixture.Settings));
clients.Add(workerClient3 = await CadenceClient.ConnectAsync(fixture.Settings));
// Start the workers.
await workerClient1.RegisterActivityAsync <ActivityWorker1>();
await workerClient1.RegisterWorkflowAsync <WorkflowWorker1>();
await workerClient1.StartWorkerAsync("tasklist-1");
await workerClient2.RegisterActivityAsync <ActivityWorker2>();
await workerClient2.RegisterWorkflowAsync <WorkflowWorker2>();
await workerClient2.StartWorkerAsync("tasklist-2");
await workerClient3.RegisterActivityAsync <ActivityWorker3>();
await workerClient3.RegisterWorkflowAsync <WorkflowWorker3>();
await workerClient3.StartWorkerAsync("tasklist-3");
// Execute each of the worker workflows WITHOUT the associated activities
// from each client (both the worker and non-worker clients).
foreach (var client in clients)
{
var stub = client.NewWorkflowStub <IWorkflowWorker1>();
Assert.True(await stub.RunAsync(testActivity: false));
}
foreach (var client in clients)
{
var stub = client.NewWorkflowStub <IWorkflowWorker2>();
Assert.True(await stub.RunAsync(testActivity: false));
}
foreach (var client in clients)
{
var stub = client.NewWorkflowStub <IWorkflowWorker3>();
Assert.True(await stub.RunAsync(testActivity: false));
}
// Re-run the workflows calling the activities this time.
foreach (var client in clients)
{
var stub = client.NewWorkflowStub <IWorkflowWorker1>();
Assert.True(await stub.RunAsync(testActivity: true));
}
foreach (var client in clients)
{
var stub = client.NewWorkflowStub <IWorkflowWorker2>();
Assert.True(await stub.RunAsync(testActivity: true));
}
foreach (var client in clients)
{
var stub = client.NewWorkflowStub <IWorkflowWorker3>();
Assert.True(await stub.RunAsync(testActivity: true));
}
}
finally
{
foreach (var client in clients)
{
client.Dispose();
}
workerClient1 = null;
workerClient2 = null;
workerClient3 = null;
}
}
/// <summary>
/// Used to start the fixture within a <see cref="ComposedFixture"/>.
/// </summary>
/// <param name="settings">Optional Cadence settings.</param>
/// <param name="image">Optionally specifies the Cadence container image (defaults to <b>nkubeio/cadence-dev:latest</b>).</param>
/// <param name="name">Optionally specifies the Cadence container name (defaults to <c>cb-test</c>).</param>
/// <param name="env">Optional environment variables to be passed to the Cadence container, formatted as <b>NAME=VALUE</b> or just <b>NAME</b>.</param>
/// <param name="defaultDomain">Optionally specifies the default domain for the fixture's client. This defaults to <b>test-domain</b>.</param>
/// <param name="logLevel">Specifies the Cadence log level. This defaults to <see cref="LogLevel.None"/>.</param>
/// <param name="keepConnection">
/// Optionally specifies that a new Cadence connection <b>should not</b> be established for each
/// unit test case. The same connection will be reused which will save about a second per test.
/// </param>
/// <param name="keepOpen">
/// Optionally indicates that the container should continue to run after the fixture is disposed.
/// </param>
/// <param name="hostInterface">
/// Optionally specifies the host interface where the container public ports will be
/// published. This defaults to <see cref="ContainerFixture.DefaultHostInterface"/>
/// but may be customized. This needs to be an IPv4 address.
/// </param>
/// <param name="noClient">
/// Optionally disables establishing a client connection when <c>true</c>
/// is passed. The <see cref="Client"/> and <see cref="HttpClient"/> properties
/// will be set to <c>null</c> in this case.
/// </param>
/// <param name="noReset">
/// Optionally prevents the fixture from calling <see cref="CadenceClient.Reset()"/> to
/// put the Cadence client library into its initial state before the fixture starts as well
/// as when the fixture itself is reset.
/// </param>
/// <param name="emulateProxy">
/// <b>INTERNAL USE ONLY:</b> Optionally starts a partially functional integrated
/// <b>cadence-proxy</b> for low-level testing. Most users should never enable this
/// because it's probably not going to do what you expect.
/// </param>
/// <remarks>
/// <note>
/// A fresh Cadence client <see cref="Client"/> will be established every time this
/// fixture is started, regardless of whether the fixture has already been started. This
/// ensures that each unit test will start with a client in the default state.
/// </note>
/// </remarks>
public void StartAsComposed(
CadenceSettings settings = null,
string image = "nkubeio/cadence-dev:latest",
string name = "cadence-dev",
string[] env = null,
string defaultDomain = DefaultDomain,
LogLevel logLevel = LogLevel.None,
bool keepConnection = false,
bool keepOpen = false,
string hostInterface = null,
bool noClient = false,
bool noReset = false,
bool emulateProxy = false)
{
Covenant.Requires <ArgumentNullException>(!string.IsNullOrEmpty(image), nameof(image));
base.CheckWithinAction();
if (!IsRunning)
{
if (string.IsNullOrEmpty(hostInterface))
{
hostInterface = ContainerFixture.DefaultHostInterface;
}
else
{
Covenant.Requires <ArgumentException>(IPAddress.TryParse(hostInterface, out var address) && address.AddressFamily == AddressFamily.InterNetwork, nameof(hostInterface), $"[{hostInterface}] is not a valid IPv4 address.");
}
// Reset CadenceClient to its initial state.
this.noReset = noReset;
if (!noReset)
{
CadenceClient.Reset();
}
// Start the Cadence container.
base.StartAsComposed(name, image,
new string[]
{
"--detach",
"-p", $"{GetHostInterface(hostInterface)}:7933-7939:7933-7939",
"-p", $"{GetHostInterface(hostInterface)}:8088:8088"
},
env: env,
keepOpen: keepOpen);
Thread.Sleep(warmupDelay);
// Initialize the settings.
settings = settings ?? new CadenceSettings()
{
CreateDomain = true,
DefaultDomain = defaultDomain,
LogLevel = logLevel
};
settings.Servers.Clear();
settings.Servers.Add($"http://{GetHostInterface(hostInterface, forConnection: true)}:{NetworkPorts.Cadence}");
this.settings = settings;
this.keepConnection = keepConnection;
if (!noClient)
{
// Establish the Cadence connection.
Client = CadenceClient.ConnectAsync(settings).Result;
HttpClient = new HttpClient()
{
BaseAddress = Client.ListenUri
};
}
}
}
