public override void Invoke(AWSCredentials creds, RegionEndpoint region, int maxItems)
{
AmazonSimpleWorkflowConfig config = new AmazonSimpleWorkflowConfig();
config.RegionEndpoint = region;
ConfigureClient(config);
AmazonSimpleWorkflowClient client = new AmazonSimpleWorkflowClient(creds, config);
ActivityTypeInfos resp = new ActivityTypeInfos();
do
{
ListActivityTypesRequest req = new ListActivityTypesRequest
{
NextPageToken = resp.NextPageToken
,
MaximumPageSize = maxItems
};
resp = client.ListActivityTypes(req);
CheckError(resp.HttpStatusCode, "200");
foreach (var obj in resp.TypeInfos)
{
AddObject(obj);
}
}while (!string.IsNullOrEmpty(resp.NextPageToken));
}
private static async Task MainAsync(string[] args)
{
var client = new AmazonSimpleWorkflowClient(new BasicAWSCredentials("provide key", "provide secret key"), RegionEndpoint.EUWest2);
var domain = new Domain("GuflowTestDomain", client);
await domain.RegisterAsync(10, "test guflow");
await domain.RegisterWorkflowAsync <ExpenseWorkflow>();
await domain.RegisterWorkflowAsync <ExpenseWorkflowWithTimeout>();
await domain.RegisterWorkflowAsync <PromotionWorkflow>();
await domain.RegisterWorkflowAsync <PromotionWorkflowWithTimeout>();
await domain.RegisterWorkflowAsync <PermitIssueWorkflow>();
await domain.RegisterWorkflowAsync <PermitIssueWorkflowWithTimeout>();
await domain.RegisterWorkflowAsync <UserActivateWorkflow>();
await domain.RegisterWorkflowAsync <UserActivateWorkflowWithTimeout>();
using (var workflowHost = domain.Host(new Workflow[] { new ExpenseWorkflow(), new ExpenseWorkflowWithTimeout(),
new PromotionWorkflow(), new PromotionWorkflowWithTimeout(), new PermitIssueWorkflow(), new PermitIssueWorkflowWithTimeout(),
new UserActivateWorkflow(), new UserActivateWorkflowWithTimeout() }))
{
workflowHost.OnError(e =>
{
Console.WriteLine(e.Exception); return(ErrorAction.Continue);
});
workflowHost.StartExecution();
Console.WriteLine("Press a key to terminate");
Console.ReadKey();
}
}
public override void Invoke(AWSCredentials creds, RegionEndpoint region, int maxItems)
{
AmazonSimpleWorkflowConfig config = new AmazonSimpleWorkflowConfig();
config.RegionEndpoint = region;
ConfigureClient(config);
AmazonSimpleWorkflowClient client = new AmazonSimpleWorkflowClient(creds, config);
DecisionTask resp = new DecisionTask();
do
{
PollForDecisionTaskRequest req = new PollForDecisionTaskRequest
{
NextPageToken = resp.NextPageToken
,
MaximumPageSize = maxItems
};
resp = client.PollForDecisionTask(req);
CheckError(resp.HttpStatusCode, "200");
foreach (var obj in resp.Events)
{
AddObject(obj);
}
}while (!string.IsNullOrEmpty(resp.NextPageToken));
}
private static async Task MainAsync(string[] args)
{
var client = new AmazonSimpleWorkflowClient(new BasicAWSCredentials("access key", "secret key"), RegionEndpoint.EUWest2);
var domain = new Domain("GuflowTestDomain", client);
await domain.RegisterAsync(10, "test guflow");
await domain.RegisterWorkflowAsync <ParentWorkflow>();
await domain.RegisterWorkflowAsync <KidPlayWorkflow>();
var activities = new[] { typeof(PlayOnSwing), typeof(PlayOnZipWire) };
foreach (var activity in activities)
{
await domain.RegisterActivityAsync(activity);
}
using (var workflowHost = domain.Host(new Workflow[] { new ParentWorkflow(), new KidPlayWorkflow() }))
using (var activityHost = domain.Host(activities))
{
workflowHost.OnError(e =>
{
Console.WriteLine(e.Exception); return(ErrorAction.Continue);
});
workflowHost.StartExecution();
activityHost.StartExecution();
Console.WriteLine("Press a key to terminate");
Console.ReadKey();
}
}
internal AWSOrchestration(AmazonSimpleWorkflowClient amazonSimpleWorkflowClient, string orchestrationId, IPersistantStore store, string lambdaRole)
{
_amazonSimpleWorkflowClient = amazonSimpleWorkflowClient;
_orchestrationId = orchestrationId;
_store = store;
_lambdaRole = lambdaRole;
}
private static async Task MainAsync(string[] args)
{
var client = new AmazonSimpleWorkflowClient(new BasicAWSCredentials("access key", "secret key"), RegionEndpoint.EUWest2);
var domain = new Domain("GuflowTestDomain", client);
await domain.RegisterWorkflowAsync <DriverWorkflow>();
await domain.RegisterWorkflowAsync <LogProcessWorkflow>();
var activityTypes = new[] { typeof(DownloadLogActivity), typeof(UpdateMetricesActivity) };
foreach (var activityType in activityTypes)
{
await domain.RegisterActivityAsync(activityType);
}
using (var activitiHost = domain.Host(activityTypes))
using (var driverWorkflowHost = domain.Host(new[] { new DriverWorkflow() }))
using (var workflowHost = domain.Host(new[] { new LogProcessWorkflow() }))
{
activitiHost.StartExecution();
var taskList = new TaskList("tasklist");
taskList.ReadStrategy = TaskList.ReadFirstPage;
driverWorkflowHost.StartExecution(taskList);
workflowHost.StartExecution();
Console.WriteLine("Press any key to terminate");
Console.ReadKey();
}
}
private static async Task MainAsync(string[] args)
{
var client = new AmazonSimpleWorkflowClient(new BasicAWSCredentials("secrete id",
"secret"), RegionEndpoint.EUWest2);
var domain = new Domain("GuflowTestDomain", client);
await domain.RegisterAsync(10, "test guflow");
await domain.RegisterWorkflowAsync <BookingWorkflow>();
var activities = new[]
{
typeof(BookFlight), typeof(BookHotel), typeof(ChooseFlightMeal),
typeof(BookDinner), typeof(SendConfirmation)
};
foreach (var activity in activities)
{
await domain.RegisterActivityAsync(activity);
}
using (var activityHost = domain.Host(activities))
using (var workflowHost = domain.Host(new [] { new BookingWorkflow() }))
{
activityHost.StartExecution();
workflowHost.StartExecution();
Console.WriteLine("Press a key to terminate");
Console.ReadKey();
}
}
public AWSOrchestrationFactory(bool usePersistantStore, string lambdaRole)
{
_amazonSimpleWorkflowClient = new AmazonSimpleWorkflowClient();
_lambdaRole = lambdaRole;
if (usePersistantStore)
{
_store = new AWSPeristantStore( );
}
}
public AWSOrchestrationFactory(string awsAccessKey, string awsSecretAccessKey, string awsRegion, bool usePersistantStore, string lambdaRole)
{
_amazonSimpleWorkflowClient = new AmazonSimpleWorkflowClient(awsAccessKey, awsSecretAccessKey, RegionEndpoint.GetBySystemName(awsRegion));
_lambdaRole = lambdaRole;
if (usePersistantStore)
{
_store = new AWSPeristantStore(awsAccessKey, awsSecretAccessKey, awsRegion);
}
}
private static void StartEchoWorkflow()
{
var client = new AmazonSimpleWorkflowClient();
var activity = WorkflowFactory.CreateActivity <string, string>("echo", Echo, 60, 10, 10, 20)
.Complete();
var workflow = WorkflowFactory.CreateWorkflow("theburningmonk.com", "echo_cs", "1")
.Attach(activity)
.Complete();
workflow.Start(client);
}
protected IAmazonSimpleWorkflow CreateClient(AWSCredentials credentials, RegionEndpoint region)
{
var config = new AmazonSimpleWorkflowConfig {
RegionEndpoint = region
};
Amazon.PowerShell.Utils.Common.PopulateConfig(this, config);
this.CustomizeClientConfig(config);
var client = new AmazonSimpleWorkflowClient(credentials, config);
client.BeforeRequestEvent += RequestEventHandler;
client.AfterResponseEvent += ResponseEventHandler;
return(client);
}
public async Task <bool> Run()
{
//Create dependencies
var settings = this.CreateSettings();
var emrJobLogger = new EmrJobLogger();
var emrJobStateChecker = new EmrJobStateChecker();
var emrClient = new AmazonElasticMapReduceClient(AccessKey, SecretKey, RegionEndpoint.USEast1);
var swfClient = new AmazonSimpleWorkflowClient(AccessKey, SecretKey, RegionEndpoint.USEast1);
var swfConfig = new DemoSwfConfiguration();
SwfManager swfManager = new SwfManager(emrJobLogger, swfClient, swfConfig);
await swfManager.SetupAsync();
using (var decider = new SwfEmrJobDecider(emrJobLogger, swfClient, swfConfig))
using (var runner = new SwfActivitiesRunner(emrJobLogger, emrJobStateChecker, settings, emrClient, swfClient, swfConfig))
{
//decider.Start
}
return(true);
}
private static void StartCountHtmlElementsWorkflow()
{
var client = new AmazonSimpleWorkflowClient();
var echo = WorkflowFactory.CreateActivity <string, string>("echo", Echo, 60, 10, 10, 20)
.Complete();
var countDiv = WorkflowFactory.CreateActivity <string, int>("count_divs", address => CountMatches("<div", address), 60, 10, 10, 20)
.WithDescription("count the number of <div> elements")
.Complete();
var countScripts = WorkflowFactory.CreateActivity <string, int>("count_scripts", address => CountMatches("<script", address), 60, 10, 10, 20)
.WithDescription("count the number of <script> elements")
.Complete();
var countSpans = WorkflowFactory.CreateActivity <string, int>("count_spans", address => CountMatches("<span", address), 60, 10, 10, 20)
.WithDescription("count the number of <span> elements")
.Complete();
var workflow = WorkflowFactory.CreateWorkflow("theburningmonk.com", "count_html_elements_cs", "1")
.Attach(echo)
.Attach(new[] { countDiv, countScripts, countSpans }, MatchesReducer)
.Attach(echo)
.Complete();
workflow.Start(client);
}
public AWSRESTService(string awsAccessKey, string awsSecretAccessKey, string awsRegion)
{
_amazonSimpleWorkflowClient = new AmazonSimpleWorkflowClient(awsAccessKey, awsSecretAccessKey, RegionEndpoint.GetBySystemName(awsRegion));
}
public static void Main(string[] args)
{
// Define the workflows that we know of that event processor will be handling
var workflows = new Dictionary <string, Type>
{
{ "CustomerOrderWorkflow", typeof(CustomerOrderWorkflow) },
{ "VerifyCustomerWorkflow", typeof(VerifyCustomerWorkflow) }
};
// Stopwatch to see how well we are performing
var stopwatch = new Stopwatch();
// We will use this ID as our decision task ID and activity task ID to identify ourselves when polling for
// decision and activity tasks.
var workflowWorkerIdentity = Guid.NewGuid();
// Print out our AWS SWF domains, workflows and activities
Console.Write(GetServiceOutput());
var loop = true;
do
{
// Our super simple application menu
Console.WriteLine("");
Console.WriteLine("=============");
Console.WriteLine("| Main Menu |");
Console.WriteLine("=============");
Console.WriteLine("[1] Submit a new workflow");
Console.WriteLine("[2] Wait for decide using a decision task");
Console.WriteLine("[3] Wait for and do some work for an activity task");
Console.WriteLine("[4] Quit");
Console.Write("\nChoice: ");
var key = Console.ReadLine();
if (String.IsNullOrEmpty(key))
{
continue;
}
switch (key)
{
// Initiate a workflow execution
case "1":
{
Console.WriteLine("Option [1] selected - Submit a new workflow");
// SWF client is disposable, so dispose it
using (var swfClient = new AmazonSimpleWorkflowClient(RegionEndpoint.USWest2))
{
// Our simple property bag: we just need to the email for the account
var propertyBag = new Dictionary <string, object> {
{ "SampleOrderNumber", "12345" }
};
// Setup the workflow request
var workflowRequest = new StartWorkflowExecutionRequest
{
Domain = "demo-domain",
WorkflowId = Guid.NewGuid().ToString(),
WorkflowType = new WorkflowType
{
Name = "CustomerOrderWorkflow",
Version = "1.0"
},
Input = JsonConvert.SerializeObject(propertyBag)
};
try
{
// Call AWS SWF and submit the workflow request
swfClient.StartWorkflowExecution(workflowRequest);
}
catch (AmazonSimpleWorkflowException ex)
{
Console.WriteLine("Caught Exception: " + ex.Message);
Console.WriteLine("Response Status Code: " + ex.StatusCode);
Console.WriteLine("Error Code: " + ex.ErrorCode);
Console.WriteLine("Error Type: " + ex.ErrorType);
Console.WriteLine("Request ID: " + ex.RequestId);
Console.WriteLine("Data: " + ex.Data);
Console.WriteLine("Stacktrace: " + ex.StackTrace);
}
}
}
break;
// Poll for decision task
case "2":
{
Console.WriteLine("Option [2] selected - Wait for decide using a decision task");
Console.WriteLine("Waiting...");
// SWF client is disposable, so dispose it
using (var swfClient = new AmazonSimpleWorkflowClient(RegionEndpoint.USWest2))
{
try
{
// Setup the decision request
var decisionTaskRequest = new PollForDecisionTaskRequest
{
Domain = "demo-domain",
Identity = workflowWorkerIdentity.ToString(),
TaskList = new TaskList {
Name = "DeciderTaskList-Default"
}
};
// Call AWS SWF and wait for (default timeout: 60 secs) a decision task
var decisionTaskResponse = swfClient.PollForDecisionTask(decisionTaskRequest);
// Task token being an empty string means there are no tasks available and
// we are past the 60 seconds that AWS holds a connection in case a task
// becomes available. If this is the case, we simply retry.
var taskToken =
decisionTaskResponse.DecisionTask.TaskToken;
if (!String.IsNullOrEmpty(taskToken))
{
// We have a valid task, do something...
var decisionTask =
decisionTaskResponse.DecisionTask;
switch (decisionTask.WorkflowType.Name)
{
case "CustomerOrderWorkflow":
case "VerifyCustomerWorkflow":
{
Debug.Assert(decisionTask.WorkflowType.Version == "1.0");
}
break;
default:
Console.WriteLine("ERROR: Unknown workflow.");
break;
}
// Define a new WorkflowEventsProcessor object and let it make the decision!
stopwatch.Start();
var workflowProcessor = new WorkflowEventsProcessor(decisionTask, workflows, decisionTaskRequest, swfClient);
var decisionRequest = workflowProcessor.Decide();
stopwatch.Stop();
Console.WriteLine(">>> Decision(s) made in " + stopwatch.ElapsedMilliseconds + "ms");
// We have our decision, send it away and do something
// more productive with the response
swfClient.RespondDecisionTaskCompleted(decisionRequest);
}
}
catch (AmazonSimpleWorkflowException ex)
{
Console.WriteLine("Caught Exception: " + ex.Message);
Console.WriteLine("Response Status Code: " + ex.StatusCode);
Console.WriteLine("Error Code: " + ex.ErrorCode);
Console.WriteLine("Error Type: " + ex.ErrorType);
Console.WriteLine("Request ID: " + ex.RequestId);
Console.WriteLine("Data: " + ex.Data);
Console.WriteLine("Stacktrace: " + ex.StackTrace);
}
}
}
break;
// Poll for activity task
case "3":
{
Console.WriteLine("Option [3] selected - Wait for decide using a activity task");
Console.WriteLine("Waiting...");
// SWF client is disposable, so dispose it
using (var swfClient = new AmazonSimpleWorkflowClient(RegionEndpoint.USWest2))
{
try
{
// Setup the activity request
var activityTaskRequest = new PollForActivityTaskRequest
{
Domain = "demo-domain",
Identity = workflowWorkerIdentity.ToString(),
TaskList = new TaskList {
Name = "ActivityTaskList-Default"
}
};
// Call AWS SWF and wait for (default timeout: 60 secs) a activity task
var activityTaskResponse = swfClient.PollForActivityTask(activityTaskRequest);
// Task token being an empty string means there are no tasks available and
// we are past the 60 seconds that AWS holds a connection in case a task
// becomes available. If this is the case, we simply retry.
var taskToken =
activityTaskResponse.ActivityTask.TaskToken;
if (!String.IsNullOrEmpty(taskToken))
{
// We have a valid task, do something...
var activityTask =
activityTaskResponse.ActivityTask;
Console.WriteLine("\n");
Console.WriteLine(">>> Activity: " + activityTask.ActivityType.Name);
// In the real world we would define the activity code in a separate object
// and fire off a thread to actually work on it but in this case we are just
// testing the workflow so this suffices
switch (activityTask.ActivityType.Name)
{
// CustomerOrderWorkflow activities
case "VerifyOrder":
case "ShipOrder":
{
Debug.Assert(activityTask.ActivityType.Version == "1.0");
}
break;
// VerifyCustomerWorkflow activities
case "VerifyCustomerAddress":
case "CheckFraudDB":
case "ChargeCreditCard":
{
Debug.Assert(activityTask.ActivityType.Version == "1.0");
}
break;
default:
Console.WriteLine("ERROR: Unknown activity.");
break;
}
var activityCompletedRequest = new RespondActivityTaskCompletedRequest
{
TaskToken = activityTask.TaskToken,
Result = activityTask.Input
};
// Completion request setup complete, send it away. NOTE: Do something more
// productive with the response
swfClient.RespondActivityTaskCompleted(activityCompletedRequest);
//var activityFailedRequest = new RespondActivityTaskFailedRequest
// {
// TaskToken = activityTask.TaskToken,
// Details = "Test failure."
// };
//// Completion request setup complete, send it away. NOTE: Do something more
//// productive with the response
//swfClient.RespondActivityTaskFailed(activityFailedRequest);
}
}
catch (AmazonSimpleWorkflowException ex)
{
Console.WriteLine("Caught Exception: " + ex.Message);
Console.WriteLine("Response Status Code: " + ex.StatusCode);
Console.WriteLine("Error Code: " + ex.ErrorCode);
Console.WriteLine("Error Type: " + ex.ErrorType);
Console.WriteLine("Request ID: " + ex.RequestId);
Console.WriteLine("Data: " + ex.Data);
Console.WriteLine("Stacktrace: " + ex.StackTrace);
}
}
}
break;
case "4":
// Quit
loop = false;
break;
default:
Console.WriteLine("ERROR: Unknown command.");
break;
}
} while (loop);
}
public static string GetServiceOutput()
{
var sb = new StringBuilder(1024);
using (var sr = new StringWriter(sb))
{
sr.WriteLine("===============================");
sr.WriteLine("| AWS Simple Workflow Service |");
sr.WriteLine("===============================");
try
{
// Print the available domains, workflows and activities. Region endpoint depends on where
// you chose to set up your workflow domain
var swfClient = new AmazonSimpleWorkflowClient(RegionEndpoint.USWest2);
sr.WriteLine();
var listDomainRequest = new ListDomainsRequest
{
RegistrationStatus = "REGISTERED"
};
var listDomainResponse = swfClient.ListDomains(listDomainRequest);
foreach (var domain in listDomainResponse.DomainInfos.Infos)
{
sr.WriteLine("[" + domain.Name + "]");
sr.WriteLine("status: " + domain.Status);
sr.WriteLine("description: " + domain.Description);
sr.WriteLine("\n WORKFLOWS");
var listWorkflowRequest = new ListWorkflowTypesRequest
{
Domain = domain.Name,
RegistrationStatus = "REGISTERED"
};
var listWorkflowTypesResponse = swfClient.ListWorkflowTypes(listWorkflowRequest);
foreach (
var workflow in
listWorkflowTypesResponse.WorkflowTypeInfos.TypeInfos)
{
sr.WriteLine(" [" + workflow.WorkflowType.Name + "] (" + workflow.WorkflowType.Version + ") " + workflow.Status);
sr.WriteLine(" creation: " + workflow.CreationDate);
sr.WriteLine(" deprecation: " + workflow.DeprecationDate);
sr.WriteLine(" description:" + TrimStringToLength(workflow.Description, 60, "", " "));
sr.WriteLine();
}
sr.WriteLine("\n ACTIVITIES");
var listActivityRequest = new ListActivityTypesRequest
{
Domain = domain.Name,
RegistrationStatus = "REGISTERED"
};
var listActivityResponse = swfClient.ListActivityTypes(listActivityRequest);
foreach (
var activity in listActivityResponse.ActivityTypeInfos.TypeInfos)
{
sr.WriteLine(" [" + activity.ActivityType.Name + "] (" + activity.ActivityType.Version + ") " + activity.Status);
sr.WriteLine(" creation: " + activity.CreationDate);
sr.WriteLine(" deprecation: " + activity.DeprecationDate);
sr.WriteLine(" description:" + TrimStringToLength(activity.Description, 60, "", " "));
sr.WriteLine();
}
}
}
catch (AmazonSimpleWorkflowException ex)
{
if (ex.ErrorCode != null && ex.ErrorCode.Equals("AuthFailure"))
{
sr.WriteLine("The account you are using is not signed up for Amazon SWF.");
sr.WriteLine("You can sign up for Amazon SWF at http://aws.amazon.com/swf");
}
else
{
sr.WriteLine("Caught Exception: " + ex.Message);
sr.WriteLine("Response Status Code: " + ex.StatusCode);
sr.WriteLine("Error Code: " + ex.ErrorCode);
sr.WriteLine("Error Type: " + ex.ErrorType);
sr.WriteLine("Request ID: " + ex.RequestId);
sr.WriteLine("Data: " + ex.Data);
sr.WriteLine("Stacktrace: " + ex.StackTrace);
}
}
sr.WriteLine();
}
return(sb.ToString());
}
