public void Initialize(InstanceContext instanceContext, Message message)
{
// Read the context id from the Message.Properties collection.
// NOTE: This property is made available by our custom channel.
string contextId =
(string)message.Properties[DurableInstanceContextUtility.ContextIdProperty];
InstanceContextExtension extension =
new InstanceContextExtension(contextId, storageManager);
instanceContext.Extensions.Add(extension);
}
public object InvokeEnd(object instance, out object[] outputs, IAsyncResult asyncResult)
{
// Finish invoking the operation using the inner operation
// invoker.
object result = innerOperationInvoker.InvokeEnd(instance, out outputs, asyncResult);
// Save the instance using the storage manager saved in the
// current InstanceContext.
InstanceContextExtension extension =
OperationContext.Current.InstanceContext.Extensions.Find <InstanceContextExtension>();
extension.StorageManager.SaveInstance(extension.ContextId, instance);
return(result);
}
public object GetInstance(InstanceContext instanceContext, Message message)
{
object instance = null;
InstanceContextExtension extension =
instanceContext.Extensions.Find <InstanceContextExtension>();
string contextId = extension.ContextId;
IStorageManager storageManager = extension.StorageManager;
//Get the instance from the storage manager.
instance = storageManager.GetInstance(contextId, serviceType);
// If the storage manager returns null (which means that there is
// no instance available for the given context id) create a new
// instance and return it.
if (instance == null)
{
instance = Activator.CreateInstance(serviceType);
}
return(instance);
}
