static void Main(string[] args)
{
// Create service host.
WorkflowServiceHost host = new WorkflowServiceHost(new CountingWorkflow(), new Uri(hostBaseAddress));
// Add service endpoint.
host.AddServiceEndpoint("ICountingWorkflow", new BasicHttpBinding(), "");
// Define SqlWorkflowInstanceStoreBehavior:
// Set interval to renew instance lock to 5 seconds.
// Set interval to check for runnable instances to 2 seconds.
// Instance Store does not keep instances after it is completed.
// Select exponential back-off algorithm when retrying to load a locked instance.
// Instance state information is compressed using the GZip compressing algorithm.
SqlWorkflowInstanceStoreBehavior instanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior(connectionString);
instanceStoreBehavior.HostLockRenewalPeriod = new TimeSpan(0, 0, 5);
instanceStoreBehavior.RunnableInstancesDetectionPeriod = new TimeSpan(0, 0, 2);
instanceStoreBehavior.InstanceCompletionAction = InstanceCompletionAction.DeleteAll;
instanceStoreBehavior.InstanceLockedExceptionAction = InstanceLockedExceptionAction.AggressiveRetry;
instanceStoreBehavior.InstanceEncodingOption = InstanceEncodingOption.GZip;
host.Description.Behaviors.Add(instanceStoreBehavior);
// Open service host.
host.Open();
// Create a client that sends a message to create an instance of the workflow.
ICountingWorkflow client = ChannelFactory<ICountingWorkflow>.CreateChannel(new BasicHttpBinding(), new EndpointAddress(hostBaseAddress));
client.start();
Console.WriteLine("(Press [Enter] at any time to terminate host)");
Console.ReadLine();
host.Close();
}
static void Main()
{
System.ServiceModel.Activities.WorkflowServiceHost myServiceHost = new System.ServiceModel.Activities.WorkflowServiceHost(new Sequence1(), new Uri("http://localhost:8080/Client"));
//Create an endpoint in the service host to enable comunication with the Receive activity inside the Workflow.
myServiceHost.AddServiceEndpoint("IWorkflow", new BasicHttpBinding(), "IWorkflow");
//Set up SQL Instance Store
string myConnectionString = "Data Source=localhost\\SQLEXPRESS;Initial Catalog=DefaultSampleStore;Integrated Security=True;Asynchronous Processing=True";
SqlWorkflowInstanceStoreBehavior sqlWorkflowInstanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior(myConnectionString);
myServiceHost.Description.Behaviors.Add(sqlWorkflowInstanceStoreBehavior);
//Set the TimeToUnload to 0 to force the WF to be unloaded. To have a durable delay, the WF needs to be unloaded otherwise it will be thread as an in-memory delay.
WorkflowIdleBehavior workflowIdleBehavior = new WorkflowIdleBehavior()
{
TimeToUnload = TimeSpan.FromSeconds(0)
};
myServiceHost.Description.Behaviors.Add(workflowIdleBehavior);
myServiceHost.Open();
Console.WriteLine("WorkflowServiceHost started");
//To create an instance of the Workflow, we are sending a message to the receive in the Workflow.
IWorkflow proxy = ChannelFactory<IWorkflow>.CreateChannel(new BasicHttpBinding(), new EndpointAddress("http://localhost:8080/Client/IWorkflow"));
proxy.Start();
Console.WriteLine("Client started");
Console.ReadLine();
myServiceHost.Close();
}
internal SqlWorkflowInstanceStorePromotionBehavior(SqlWorkflowInstanceStoreBehavior sqlWorkflowInstanceStoreBehavior)
{
base.ConnectionString = sqlWorkflowInstanceStoreBehavior.ConnectionString;
base.HostLockRenewalPeriod = sqlWorkflowInstanceStoreBehavior.HostLockRenewalPeriod;
base.InstanceCompletionAction = sqlWorkflowInstanceStoreBehavior.InstanceCompletionAction;
base.InstanceEncodingOption = sqlWorkflowInstanceStoreBehavior.InstanceEncodingOption;
base.InstanceLockedExceptionAction = sqlWorkflowInstanceStoreBehavior.InstanceLockedExceptionAction;
base.RunnableInstancesDetectionPeriod = sqlWorkflowInstanceStoreBehavior.RunnableInstancesDetectionPeriod;
}
public static WorkflowServiceHost CreateWorkflowServiceHost()
{
// add the workflow implementation and application endpoint to the host
WorkflowService service = new WorkflowService()
{
Body = PurchaseOrderWorkflow.CreateBody(),
Endpoints =
{
// adds an application endpoint
new System.ServiceModel.Endpoint
{
Binding = new System.ServiceModel.NetMsmqBinding("NetMsmqBindingTx"),
AddressUri = new Uri("net.msmq://localhost/private/ReceiveTx"),
ServiceContractName = XName.Get(PurchaseOrderWorkflow.poContractDescription.Name)
}
}
};
WorkflowServiceHost workflowServiceHost = new WorkflowServiceHost(service);
// add the workflow management behaviors
IServiceBehavior idleBehavior = new WorkflowIdleBehavior { TimeToUnload = TimeSpan.Zero };
workflowServiceHost.Description.Behaviors.Add(idleBehavior);
IServiceBehavior workflowUnhandledExceptionBehavior = new WorkflowUnhandledExceptionBehavior()
{
Action = WorkflowUnhandledExceptionAction.AbandonAndSuspend // this is also the default
};
workflowServiceHost.Description.Behaviors.Add(workflowUnhandledExceptionBehavior);
// add the instance store
SqlWorkflowInstanceStoreBehavior instanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior()
{
ConnectionString = "Server=localhost\\SQLEXPRESS;Integrated Security=true;Initial Catalog=DefaultSampleStore;"
};
workflowServiceHost.Description.Behaviors.Add(instanceStoreBehavior);
// add a workflow management endpoint
ServiceEndpoint workflowControlEndpoint = new WorkflowControlEndpoint()
{
Binding = new System.ServiceModel.NetNamedPipeBinding(System.ServiceModel.NetNamedPipeSecurityMode.None),
Address = new System.ServiceModel.EndpointAddress("net.pipe://workflowInstanceControl")
};
workflowServiceHost.AddServiceEndpoint(workflowControlEndpoint);
// add the tracking participant
workflowServiceHost.WorkflowExtensions.Add(new TrackingListenerConsole());
foreach (ServiceEndpoint ep in workflowServiceHost.Description.Endpoints)
{
Console.WriteLine(ep.Address);
}
return workflowServiceHost;
}
// start the service
static void Main(string[] args)
{
string persistenceConnectionString = ConfigurationManager.ConnectionStrings["WorkflowPersistence"].ConnectionString;
string baseAddr = "http://localhost:8080/Contoso/HiringRequestService";
using (WorkflowServiceHost host = new WorkflowServiceHost(new HiringRequestProcessServiceDefinition(), new Uri(baseAddr)))
{
SqlWorkflowInstanceStoreBehavior instanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior(persistenceConnectionString);
instanceStoreBehavior.InstanceCompletionAction = InstanceCompletionAction.DeleteAll;
instanceStoreBehavior.InstanceEncodingOption = InstanceEncodingOption.GZip;
host.Description.Behaviors.Add(instanceStoreBehavior);
host.Description.Behaviors.Add(new WorkflowIdleBehavior() { TimeToPersist = new TimeSpan(0) });
host.WorkflowExtensions.Add(new HiringRequestInfoPersistenceParticipant());
// configure the unknown message handler
host.UnknownMessageReceived += new EventHandler<System.ServiceModel.UnknownMessageReceivedEventArgs>(Program.UnknownMessageReceive);
// add the control endpoint
WorkflowControlEndpoint publicEndpoint = new WorkflowControlEndpoint(
new BasicHttpBinding(),
new EndpointAddress(new Uri("http://127.0.0.1/hiringProcess")));
host.AddServiceEndpoint(publicEndpoint);
host.AddDefaultEndpoints();
// start the service
Console.WriteLine("Starting ...");
host.Open();
// end when the user hits enter
Console.WriteLine("Service is waiting at: " + baseAddr);
Console.WriteLine("Press [Enter] to exit");
Console.ReadLine();
host.Close();
}
}
private void SetupHost()
{
WorkflowService service = new WorkflowService
{
Name = "LeadResponse",
Body = new WorkAssignment(),
Endpoints =
{
new Endpoint
{
ServiceContractName="CreateAssignment",
AddressUri = new Uri("http://localhost/CreateAssignment"),
Binding = new BasicHttpBinding(),
}
}
};
// Create a WorkflowServiceHost that listens for incoming messages
_wsh = new System.ServiceModel.Activities.WorkflowServiceHost(service);
SqlWorkflowInstanceStoreBehavior instanceStoreBehavior
= new SqlWorkflowInstanceStoreBehavior(_connectionString);
instanceStoreBehavior.InstanceCompletionAction
= InstanceCompletionAction.DeleteAll;
instanceStoreBehavior.InstanceLockedExceptionAction
= InstanceLockedExceptionAction.AggressiveRetry;
_wsh.Description.Behaviors.Add(instanceStoreBehavior);
WorkflowIdleBehavior wib = new WorkflowIdleBehavior();
wib.TimeToUnload = TimeSpan.FromMilliseconds(100);
_wsh.Description.Behaviors.Add(wib);
_wsh.Description.Behaviors.Add
(new DBExtensionBehavior(_connectionString));
_wsh.Description.Behaviors.Add
(new PersistAssignmentBehavior(_connectionString));
// Open the service so it will listen for messages
_wsh.Open();
}
static void Main(string[] args)
{
// Create service host.
WorkflowServiceHost host = new WorkflowServiceHost(CountingWorkflow(), new Uri(hostBaseAddress));
// Add service endpoint.
host.AddServiceEndpoint("ICountingWorkflow", new BasicHttpBinding(), "");
// Define SqlWorkflowInstanceStore and assign it to host.
SqlWorkflowInstanceStoreBehavior store = new SqlWorkflowInstanceStoreBehavior(connectionString);
List<XName> variantProperties = new List<XName>()
{
xNS.GetName("Count")
};
store.Promote("CountStatus", variantProperties, null);
host.Description.Behaviors.Add(store);
host.WorkflowExtensions.Add<CounterStatus>(() => new CounterStatus());
host.Open(); // This sample needs to be run with Admin privileges.
// Otherwise the channel listener is not allowed to open ports.
// See sample documentation for details.
// Create a client that sends a message to create an instance of the workflow.
ICountingWorkflow client = ChannelFactory<ICountingWorkflow>.CreateChannel(new BasicHttpBinding(), new EndpointAddress(hostBaseAddress));
client.start();
Console.WriteLine("(Press [Enter] at any time to terminate host)");
Console.ReadLine();
host.Close();
}
protected internal override object CreateBehavior()
{
bool useDefaultConnectionStringName = false;
if (string.IsNullOrEmpty(this.ConnectionString) &&
string.IsNullOrEmpty(this.ConnectionStringName))
{
useDefaultConnectionStringName = true;
}
if (!string.IsNullOrEmpty(this.ConnectionString) &&
!string.IsNullOrEmpty(this.ConnectionStringName))
{
throw FxTrace.Exception.AsError(new InstancePersistenceException(SR.CannotSpecifyBothConnectionStringAndName));
}
string connectionStringToUse;
if (!string.IsNullOrEmpty(this.ConnectionStringName) || useDefaultConnectionStringName)
{
string connectionStringNameToUse = useDefaultConnectionStringName ? defaultConnectionStringName : this.ConnectionStringName;
ConnectionStringSettings settings = ConfigurationManager.ConnectionStrings[connectionStringNameToUse];
if (settings == null)
{
if (useDefaultConnectionStringName)
{
throw FxTrace.Exception.AsError(new InstancePersistenceException(SR.MustSpecifyConnectionStringOrName));
}
throw FxTrace.Exception.Argument(connectionStringName, SR.ConnectionStringNameWrong(this.ConnectionStringName));
}
connectionStringToUse = settings.ConnectionString;
}
else
{
connectionStringToUse = this.ConnectionString;
}
SqlWorkflowInstanceStoreBehavior sqlWorkflowInstanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior
{
ConnectionString = connectionStringToUse,
HostLockRenewalPeriod = this.HostLockRenewalPeriod,
InstanceEncodingOption = this.InstanceEncodingOption,
InstanceCompletionAction = this.InstanceCompletionAction,
InstanceLockedExceptionAction = this.InstanceLockedExceptionAction,
RunnableInstancesDetectionPeriod = this.RunnableInstancesDetectionPeriod,
MaxConnectionRetries = this.MaxConnectionRetries
};
return sqlWorkflowInstanceStoreBehavior;
}
