public static void ResumeWorkflowTimer(IApplicationHost host, IDbContext dbContext, IMessaging messaging, Int64 processId)
{
AppWorkflow aw = null;
var result = new WorkflowResult
{
InboxIds = new List <Int64>()
};
try
{
var pi = ProcessInfo.Load(dbContext, processId, 0);
var def = WorkflowDefinition.Load(pi);
Activity root = def.LoadFromDefinition();
aw = Create(dbContext, root, null, def.Identity);
aw._application.Extensions.Add(dbContext);
aw._application.Extensions.Add(messaging);
aw._application.Extensions.Add(host);
aw._application.Extensions.Add(result);
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(pi.WorkflowId, aw._application.InstanceStore);
aw._application.Load(instance, _wfTimeSpan);
aw._application.Run(_wfTimeSpan);
}
catch (Exception ex)
{
if (!CatchWorkflow(aw, ex))
{
throw;
}
}
finally
{
ProcessFinally(aw);
}
}
private void QuitGame_Click(object sender, EventArgs e)
{
if (WorkflowInstanceId == Guid.Empty)
{
MessageBox.Show("Please select a workflow.");
return;
}
WorkflowApplicationInstance instance =
WorkflowApplication.GetInstance(WorkflowInstanceId, store);
// Use the persisted WorkflowIdentity to retrieve the correct workflow
// definition from the dictionary.
Activity wf = WorkflowVersionMap.GetWorkflowDefinition(instance.DefinitionIdentity);
// Associate the WorkflowApplication with the correct definition
WorkflowApplication wfApp =
new WorkflowApplication(wf, instance.DefinitionIdentity);
// Configure the extensions and lifecycle handlers
ConfigureWorkflowApplication(wfApp);
// Load the workflow.
wfApp.Load(instance);
// Terminate the workflow.
wfApp.Terminate("User resigns.");
}
private void InstanceId_SelectedIndexChanged(object sender, EventArgs e)
{
if (InstanceId.SelectedIndex == -1)
{
return;
}
// Clear the status window.
WorkflowStatus.Clear();
// If there is tracking data for this workflow, display it
// in the status window.
if (File.Exists(WorkflowInstanceId.ToString()))
{
string status = File.ReadAllText(WorkflowInstanceId.ToString());
UpdateStatus(status);
}
// Get the workflow version and display it.
// If the workflow is just starting then this info will not
// be available in the persistence store so do not try and retrieve it.
if (!WorkflowStarting)
{
WorkflowApplicationInstance instance =
WorkflowApplication.GetInstance(this.WorkflowInstanceId, store);
WorkflowVersion.Text =
WorkflowVersionMap.GetIdentityDescription(instance.DefinitionIdentity);
// Unload the instance.
instance.Abandon();
}
}
private void Unload(Guid workflowInstanceId) //that's weird!
{
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(workflowInstanceId, _store);
// Unload the instance.
instance.Abandon();
}
private void cmdUpdateInstance_Click(object sender, RoutedEventArgs e)
{
SqlWorkflowInstanceStore instanceStore = new SqlWorkflowInstanceStore();
instanceStore.ConnectionString =
@"Data Source=(LocalDB)\v11.0;Initial Catalog=WFPersist;Integrated Security=True";
WorkflowApplicationInstance wfInstance =
WorkflowApplication.GetInstance(new Guid(txtUpdateInstance.Text), instanceStore);
DataContractSerializer s = new DataContractSerializer(typeof(DynamicUpdateMap));
using (FileStream fs = File.Open(txtUpdateMapFile.Text, FileMode.Open))
{
updateMap = s.ReadObject(fs) as DynamicUpdateMap;
}
var wfApp =
new WorkflowApplication(new MovieRentalProcess(),
new WorkflowIdentity
{
Name = "v2MovieRentalProcess",
Version = new System.Version(2, 0, 0, 0)
});
IList <ActivityBlockingUpdate> act;
if (wfInstance.CanApplyUpdate(updateMap, out act))
{
wfApp.Load(wfInstance, updateMap);
wfApp.Unload();
}
}
/// <summary>
///
/// </summary>
/// <param name="definitionPath"></param>
/// <param name="mapPath"></param>
/// <param name="connectionString"></param>
/// <param name="instanceId"></param>
public static void Update(String definitionPath, String mapPath, String connectionString, Guid instanceId)
{
// Store
SqlWorkflowInstanceStore instanceStore = new SqlWorkflowInstanceStore
{
ConnectionString = connectionString
};
// Instance to update
WorkflowApplicationInstance wfInstance = WorkflowApplication.GetInstance(instanceId, instanceStore);
// Load update map
DynamicUpdateMap updateMap;
DataContractSerializer s = new DataContractSerializer(typeof(DynamicUpdateMap));
using (FileStream fs = File.Open(mapPath, FileMode.Open))
{
updateMap = s.ReadObject(fs) as DynamicUpdateMap;
}
// if (updateMap == null) return; // Throw
WorkflowApplication wfApp =
new WorkflowApplication(LoadActivityBuilder(definitionPath).Implementation);
IList <ActivityBlockingUpdate> act;
if (wfInstance.CanApplyUpdate(updateMap, out act))
{
wfApp.Load(wfInstance, updateMap);
wfApp.Unload();
}
}
private static void UpgradeExistingWorkflow(Guid id, DynamicUpdateMap map)
{
SqlWorkflowInstanceStore store = new SqlWorkflowInstanceStore(ConfigurationManager.ConnectionStrings["db"].ConnectionString);
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(id, store);
WorkflowApplication app = new WorkflowApplication(GetUpdatedWorkflow());
app.Load(instance, map);
app.Unload();
}
private static void LoadAndRunWorkflow(Guid id)
{
SqlWorkflowInstanceStore store = new SqlWorkflowInstanceStore(ConfigurationManager.ConnectionStrings["db"].ConnectionString);
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(id, store);
WorkflowApplication app = new WorkflowApplication(GetUpdatedWorkflow());
ManualResetEvent wait = new ManualResetEvent(false);
app.Completed = args => wait.Set();
app.Run();
wait.WaitOne();
}
public static async Task <WorkflowResult> ResumeWorkflow(IApplicationHost host, IDbContext dbContext, ResumeWorkflowInfo info)
{
AppWorkflow aw = null;
var result = new WorkflowResult
{
InboxIds = new List <Int64>()
};
try
{
InboxInfo inbox = await InboxInfo.Load(dbContext, info.Id, info.UserId);
result.ProcessId = inbox.ProcessId;
var def = WorkflowDefinition.Load(inbox);
Activity root = def.LoadFromSource(host);
aw = Create(dbContext, root, null, def.Identity);
aw._application.Extensions.Add(result);
aw._application.Extensions.Add(dbContext);
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(inbox.WorkflowId, aw._application.InstanceStore);
aw._application.Load(instance, _wfTimeSpan);
foreach (var bm in aw._application.GetBookmarks())
{
if (bm.BookmarkName == inbox.Bookmark)
{
var rr = new RequestResult
{
Answer = info.Answer,
Comment = info.Comment,
Params = info.Params,
UserId = info.UserId,
InboxId = info.Id
};
aw._application.ResumeBookmark(bm.BookmarkName, rr);
return(result); // already resumed
}
}
// if a bookmark is not found
aw._application.Unload();
}
catch (Exception ex)
{
if (!CatchWorkflow(aw, ex))
{
throw;
}
}
finally
{
ProcessFinally(aw);
}
return(result);
}
public void ResumeWorkFlow(BusinessObject.DtoModels.Game game)
{
Exception exception = new Exception();
Guid workflowInstanceID = game.InstanceId;
SqlWorkflowInstanceStore store = new SqlWorkflowInstanceStore(databaseConnection);
store.InstanceLockedExceptionAction = InstanceLockedExceptionAction.BasicRetry;
store.HostLockRenewalPeriod = TimeSpan.FromSeconds(2);
InstanceHandle instanceHandle = store.CreateInstanceHandle();
CreateWorkflowOwnerCommand createOwnerCmd = new CreateWorkflowOwnerCommand();
InstanceView view = store.Execute(instanceHandle, createOwnerCmd, TimeSpan.FromSeconds(10));
store.DefaultInstanceOwner = view.InstanceOwner;
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(workflowInstanceID, store);
AutoResetEvent syncEvent = new AutoResetEvent(false);
WorkflowApplication wfApplication = new WorkflowApplication(new FlowchartNumberGuessWorkflow(), instance.DefinitionIdentity);
wfApplication.PersistableIdle = (e) => PersistableIdleAction.Unload;
wfApplication.Unloaded = (e) => { syncEvent.Set(); };
wfApplication.OnUnhandledException = (e) =>
{
exception = e.UnhandledException;
syncEvent.Set();
return(UnhandledExceptionAction.Cancel);
};
wfApplication.Load(instance);
BookmarkResumptionResult result = wfApplication.ResumeBookmark("Decision", game);
syncEvent.WaitOne();
if (exception.Message != string.Empty && exception.StackTrace != null)
{
throw exception;
}
DeleteWorkflowOwnerCommand deleteOwnerCmd = new DeleteWorkflowOwnerCommand();
store.Execute(instanceHandle, deleteOwnerCmd, TimeSpan.FromSeconds(10));
}
private static void LoadRunnableInstance(InstanceStore store, WorkflowApplicationInstance appInstance)
{
var app = CreateWorkflow(store, WorkflowApps.App1);
switch (appInstance.DefinitionIdentity.Name)
{
case "App1":
break;
case "App2":
app = CreateWorkflow(store, WorkflowApps.App2);
break;
}
app.Load(appInstance);
app.Run();
}
private void EnterGuess_Click(object sender, EventArgs e)
{
if (WorkflowInstanceId == Guid.Empty)
{
MessageBox.Show("Please select a workflow.");
return;
}
int guess;
if (!Int32.TryParse(Guess.Text, out guess))
{
MessageBox.Show("Please enter an integer.");
Guess.SelectAll();
Guess.Focus();
return;
}
WorkflowApplicationInstance instance =
WorkflowApplication.GetInstance(WorkflowInstanceId, store);
// Use the persisted WorkflowIdentity to retrieve the correct workflow
// definition from the dictionary.
Activity wf =
WorkflowVersionMap.GetWorkflowDefinition(instance.DefinitionIdentity);
// Associate the WorkflowApplication with the correct definition
WorkflowApplication wfApp =
new WorkflowApplication(wf, instance.DefinitionIdentity);
// Configure the extensions and lifecycle handlers.
// Do this before the instance is loaded. Once the instance is
// loaded it is too late to add extensions.
ConfigureWorkflowApplication(wfApp);
// Load the workflow.
wfApp.Load(instance);
// Resume the workflow.
wfApp.ResumeBookmark("EnterGuess", guess);
// Clear the Guess textbox.
Guess.Clear();
Guess.Focus();
}
static void Main(string[] args)
{
SqlWorkflowInstanceStore store = new SqlWorkflowInstanceStore(connectionString);
WorkflowApplication.CreateDefaultInstanceOwner(store, null, WorkflowIdentityFilter.Any);
IDictionary <WorkflowIdentity, DynamicUpdateInfo> updateMaps = LoadMaps();
foreach (Guid id in GetIds())
{
// Get a proxy to the instance.
WorkflowApplicationInstance instance =
WorkflowApplication.GetInstance(id, store);
Console.WriteLine("Inspecting: {0}", instance.DefinitionIdentity);
// Only update v1 workflows.
if (instance.DefinitionIdentity != null &&
instance.DefinitionIdentity.Version.Equals(new Version(1, 0, 0, 0)))
{
DynamicUpdateInfo info = updateMaps[instance.DefinitionIdentity];
// Associate the persisted WorkflowApplicationInstance with
// a WorkflowApplication that is configured with the updated
// definition and updated WorkflowIdentity.
Activity wf = WorkflowVersionMap.GetWorkflowDefinition(info.newIdentity);
WorkflowApplication wfApp =
new WorkflowApplication(wf, info.newIdentity);
// Apply the Dynamic Update.
wfApp.Load(instance, info.updateMap);
// Persist the updated instance.
wfApp.Unload();
Console.WriteLine("Updated to: {0}", info.newIdentity);
}
else
{
// Not updating this instance, so unload it.
instance.Abandon();
}
}
}
private void cmdReturnMovie_Click(object sender, RoutedEventArgs e)
{
InitiateWorkflowRuntime();
WorkflowApplicationInstance wfInstance = WorkflowApplication.GetInstance(new Guid(txtInstanceId.Text), _wfApp.InstanceStore);
int minVer = wfInstance.DefinitionIdentity.Version.Minor;
_wfApp.Load(wfInstance);
_wfApp.Run();
var creditCard = new CreditCard()
{
CCNumber = "1235626427465",
FirstName = "Bayer",
LastName = "White",
ExpireMonth = 10,
ExpireYear = 14
};
_wfApp.ResumeBookmark("ReturnMovie", creditCard);
}
private void Terminate(Guid workflowInstanceId, Func <WorkflowIdentity, Activity> workflowMap,
string terminationMessage, Action <string> writelineListener = null)
{
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(workflowInstanceId, _store);
// Use the persisted WorkflowIdentity to retrieve the correct workflow
// definition from the dictionary.
Activity wf = workflowMap(instance.DefinitionIdentity);
// Associate the WorkflowApplication with the correct definition
WorkflowApplication wfApp = new WorkflowApplication(wf, instance.DefinitionIdentity);
// Configure the extensions and lifecycle handlers
ConfigureWorkflowApplication(wfApp, writelineListener);
// Load the workflow.
wfApp.Load(instance);
// Terminate the workflow.
wfApp.Terminate(terminationMessage);
}
private static void SendInstance(string customerName, string bookmarkName)
{
if (!customers.Exists(c => c.Name == customerName))
{
Console.WriteLine(string.Format("No such customer {0}.", customerName));
return;
}
var customer = customers.Find(c => c.Name == customerName);
if (customer.InstanceId == "")
{
Console.WriteLine(string.Format("Customer {0} does not have workflow instance.", customerName));
return;
}
SqlWorkflowInstanceStore store = new SqlWorkflowInstanceStore(connectionString);
WorkflowApplication.CreateDefaultInstanceOwner(store, null, WorkflowIdentityFilter.Any);
WorkflowApplicationInstance instance =
WorkflowApplication.GetInstance(new Guid(customer.InstanceId), store);
Activity wf = GetWorkflow(customer.WorkflowId);
if (wf == null)
{
Console.WriteLine(string.Format("Unknown workflow {0}", customer.WorkflowId));
return;
}
WorkflowApplication wfApp =
new WorkflowApplication(wf, instance.DefinitionIdentity);
ConfigureWFApp(wfApp, customer);
wfApp.Load(instance);
instanceUnloaded.Reset();
wfApp.ResumeBookmark(bookmarkName, null);
}
private void ResumeBookmark(Guid workflowInstanceId,
Func <WorkflowIdentity, Activity> workflowMap, string bookmarkName, object bookmarkResumeContext)
{
// >>>> RESUME A WORKFLOW <<<<
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(workflowInstanceId, _store);
Activity workflow = workflowMap(instance.DefinitionIdentity);
// Associate the WorkflowApplication with the correct definition (a name & version)
WorkflowApplication wfApp = new WorkflowApplication(workflow, instance.DefinitionIdentity);
// Configure the extensions and lifecycle handlers.
// Do this before the instance is loaded. Once the instance is
// loaded it is too late to add extensions.
ConfigureWorkflowApplication(wfApp);
// Load the workflow.
wfApp.Load(instance); //takes a Guid InstanceId or WorkflowApplicationInstance instance from store
// Resume the workflow.
wfApp.ResumeBookmark(bookmarkName, bookmarkResumeContext);
}
// >>>> RESUME A WORKFLOW <<<<
public WorkflowResult ResumeBookmark(Guid workflowInstanceId, Func <WorkflowIdentity, Activity> workflowMap,
string bookmarkName, object bookmarkResumeContext, Action <string> writelineListener = null)
{
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(workflowInstanceId, _store);
Activity workflow = workflowMap(instance.DefinitionIdentity);
// Associate the WorkflowApplication with the correct definition (a name & version)
WorkflowApplication wfApp = new WorkflowApplication(workflow, instance.DefinitionIdentity);
// Configure the extensions and lifecycle handlers.
// Do this before the instance is loaded. Once the instance is
// loaded it is too late to add extensions.
ConfigureWorkflowApplication(wfApp, writelineListener);
// Load the workflow.
wfApp.Load(instance); //takes a Guid InstanceId or WorkflowApplicationInstance instance from store
// Resume the workflow.
wfApp.ResumeBookmark(bookmarkName, bookmarkResumeContext);
return(WaitAndReturnData());
}
public static void RunScenario()
{
//***********************************************************
// STEP 1: create a WorkflowApplication with a definition,
// and an identity, start an instance, and persist it and
// unload it when it gets idle
//***********************************************************
// Create a workflow application using identity
// notice that the delta between WF4 is the following:
// - create an instance of WorkflowIdentity
// - pass it to WorkflowApplication in its constructor
WorkflowIdentity identityV1 =
new WorkflowIdentity("Dev11-Sample",
new Version(1, 0, 0, 0), null);
WorkflowApplication application = new WorkflowApplication(new Activity1(), identityV1);
// create the instance store and assign it to the workflow application
application.InstanceStore = Utils.SetupInstanceStore();
// start an instance, unload it, and persist it into the instance store
Guid instanceId = Utils.StartAndUnloadInstance(application);
// read input from the console
string input = Console.ReadLine();
//***********************************************************
// STEP 2: given an instance id, look up the definition in the
// instance store, configure a workflow application
// load the instance, and continue with its execution
//***********************************************************
// load the instance with the correct definition
WorkflowApplicationInstance instance = null;
WorkflowApplication newApplication = null;
AutoResetEvent syncEvent = new AutoResetEvent(false);
try
{
// get a proxy to the running instance
instance = WorkflowApplication.GetInstance(instanceId, Utils.SetupInstanceStore());
// get the definition associated to the identity of the instance
// for this we are using a dictionary with key=identity; value=activity
Activity definition = WorkflowDefinitionRepository.GetActivity(instance.DefinitionIdentity);
// create and configure the workflowApplication
newApplication = new WorkflowApplication(definition, instance.DefinitionIdentity);
// configure the workflow application
newApplication.Completed = (e) => Utils.ShowMessageFromHost(string.Format("WorkflowApplication has Completed in the {0} state.", e.CompletionState), ConsoleColor.Green);
newApplication.Unloaded = (e) => syncEvent.Set();
// show messages in the console
Utils.ShowMessageFromHost("Loading the workflow using its identity in the InstanceStore...", ConsoleColor.Cyan);
Utils.ShowMessageFromHost(string.Format("Loading with identity '{0}'", instance.DefinitionIdentity.ToString()));
// load the application (passing the instance that we got previously)
newApplication.Load(instance);
//this resumes the bookmark setup by readline
newApplication.ResumeBookmark("ReadLine", input);
syncEvent.WaitOne();
}
catch
{
// if there is an error, discard the instance so it does not remain locked
if (newApplication != null && instance != null)
{
instance.Abandon();
}
}
}
public static async Task <WorkflowResult> ResumeWorkflow(IApplicationHost host, IDbContext dbContext, IMessaging messaging, ResumeWorkflowInfo info)
{
AppWorkflow aw = null;
var profiler = host.Profiler;
var result = new WorkflowResult
{
InboxIds = new List <Int64>()
};
try
{
InboxInfo inbox = await InboxInfo.Load(dbContext, info.Id, info.UserId);
if (inbox == null)
{
throw new WorkflowException("The task is already done by another user");
}
using (profiler.CurrentRequest.Start(ProfileAction.Workflow, $"Load '{inbox.Kind}'"))
{
result.ProcessId = inbox.ProcessId;
var def = WorkflowDefinition.Load(inbox);
Activity root = def.LoadFromSource(host, dbContext);
aw = Create(dbContext, root, null, def.Identity);
aw._application.Extensions.Add(result);
aw._application.Extensions.Add(dbContext);
aw._application.Extensions.Add(messaging);
aw._application.Extensions.Add(host);
WorkflowApplicationInstance instance = WorkflowApplication.GetInstance(inbox.WorkflowId, aw._application.InstanceStore);
aw._application.Load(instance, _wfTimeSpan);
}
foreach (var bm in aw._application.GetBookmarks())
{
if (bm.BookmarkName == inbox.Bookmark)
{
var rr = new RequestResult
{
Answer = info.Answer,
Comment = info.Comment,
Params = info.Params,
UserId = info.UserId,
InboxId = info.Id
};
using (profiler.CurrentRequest.Start(ProfileAction.Workflow, $"Resume '{bm.BookmarkName}'"))
{
aw._application.ResumeBookmark(bm.BookmarkName, rr);
}
return(result); // already resumed
}
}
// if a bookmark is not found
aw._application.Unload();
}
catch (Exception ex)
{
if (!CatchWorkflow(aw, ex))
{
throw;
}
}
finally
{
ProcessFinally(aw);
}
return(result);
}