private static void UpdateKeyData(InstancePersistenceContext context, SaveWorkflowCommand saveWorkflowCommand)
{
InstanceView instanceView = context.InstanceView;
foreach (KeyValuePair <Guid, IDictionary <XName, InstanceValue> > pair in saveWorkflowCommand.InstanceKeysToAssociate)
{
if (!instanceView.InstanceKeys.ContainsKey(pair.Key))
{
context.AssociatedInstanceKey(pair.Key);
if (pair.Value != null)
{
foreach (KeyValuePair <XName, InstanceValue> pair2 in pair.Value)
{
context.WroteInstanceKeyMetadataValue(pair.Key, pair2.Key, pair2.Value);
}
}
}
}
foreach (Guid guid in saveWorkflowCommand.InstanceKeysToComplete)
{
InstanceKeyView view2;
if (instanceView.InstanceKeys.TryGetValue(guid, out view2) && (view2.InstanceKeyState != InstanceKeyState.Completed))
{
context.CompletedInstanceKey(guid);
}
}
foreach (Guid guid2 in saveWorkflowCommand.InstanceKeysToFree)
{
InstanceKeyView view3;
if (instanceView.InstanceKeys.TryGetValue(guid2, out view3))
{
context.UnassociatedInstanceKey(guid2);
}
}
foreach (KeyValuePair <Guid, IDictionary <XName, InstanceValue> > pair3 in saveWorkflowCommand.InstanceKeyMetadataChanges)
{
if (pair3.Value != null)
{
foreach (KeyValuePair <XName, InstanceValue> pair4 in pair3.Value)
{
context.WroteInstanceKeyMetadataValue(pair3.Key, pair4.Key, pair4.Value);
}
}
}
if (saveWorkflowCommand.CompleteInstance)
{
foreach (KeyValuePair <Guid, InstanceKeyView> pair5 in instanceView.InstanceKeys)
{
if ((pair5.Value != null) && (pair5.Value.InstanceKeyState == InstanceKeyState.Associated))
{
context.CompletedInstanceKey(pair5.Key);
}
}
}
}
private long ProcessSaveCommand(InstancePersistenceContext context, SaveWorkflowCommand command)
{
Owner owner = CheckOwner(context, command.Name);
Instance instance = PersistenceItemManager.Load <Instance>(context.InstanceView.InstanceId);
if (instance == null)
{
// Checking instance.Owner is like an InstanceLockQueryResult.
context.QueriedInstanceStore(new InstanceLockQueryResult(context.InstanceView.InstanceId, Guid.Empty));
if (context.InstanceView.IsBoundToLock)
{
context.InstanceHandle.Free();
throw new InstanceLockLostException(command.Name, context.InstanceView.InstanceId);
}
instance = new Instance()
{
Version = 1,
Id = context.InstanceView.InstanceId,
Owner = context.InstanceView.InstanceOwner.InstanceOwnerId,
Metadata = new PropertyBag()
};
PersistenceItemManager.SaveToFile <Instance>(instance);
context.BindAcquiredLock(1);
}
else
{
// Checking instance.Owner is like an InstanceLockQueryResult.
context.QueriedInstanceStore(new InstanceLockQueryResult(context.InstanceView.InstanceId, instance.Owner));
if (instance.State == InstanceState.Completed)
{
throw new InstanceCompleteException(command.Name, context.InstanceView.InstanceId);
}
if (instance.Owner == Guid.Empty)
{
if (context.InstanceView.IsBoundToLock)
{
context.InstanceHandle.Free();
throw new InstanceLockLostException(command.Name, context.InstanceView.InstanceId);
}
instance.Version++;
instance.Owner = context.InstanceView.InstanceOwner.InstanceOwnerId;
PersistenceItemManager.SaveToFile <Instance>(instance);
context.BindAcquiredLock(instance.Version);
}
else
{
if (instance.Owner != context.InstanceView.InstanceOwner.InstanceOwnerId)
{
if (context.InstanceView.IsBoundToLock)
{
context.InstanceHandle.Free();
throw new InstanceLockLostException(command.Name, context.InstanceView.InstanceId);
}
throw new InstanceLockedException(command.Name, instance.Owner);
}
if (context.InstanceView.IsBoundToLock)
{
if (context.InstanceVersion != instance.Version)
{
if (context.InstanceVersion > instance.Version)
{
throw new InvalidProgramException("This is a bug, the context should never be bound higher than the lock.");
}
context.InstanceHandle.Free();
throw new InstanceLockLostException(command.Name, context.InstanceView.InstanceId);
}
}
else
{
// This is the very interesting parallel-convoy conflicting handle race resolution case. Two handles
// can get bound to the same lock, which is necessary to allow parallel convoy to succeed without preventing
// zombied locked instances from being reclaimed.
return(instance.Version);
}
}
}
foreach (KeyValuePair <Guid, IDictionary <XName, InstanceValue> > keyEntry in command.InstanceKeysToAssociate)
{
Key key = PersistenceItemManager.Load <Key>(keyEntry.Key);
if (key != null)
{
if (key.TargetInstanceId != Guid.Empty && key.TargetInstanceId != context.InstanceView.InstanceId)
{
throw new InstanceKeyCollisionException(command.Name, context.InstanceView.InstanceId, new InstanceKey(keyEntry.Key), key.TargetInstanceId);
}
// The SaveWorkflowCommand treats this as a no-op, whether completed or not.
}
else
{
key = new Key()
{
Id = keyEntry.Key,
State = InstanceKeyState.Associated,
TargetInstanceId = context.InstanceView.InstanceId,
Metadata = new PropertyBag(keyEntry.Value)
};
PersistenceItemManager.SaveToFile <Key>(key);
context.AssociatedInstanceKey(keyEntry.Key);
if (keyEntry.Value != null)
{
foreach (KeyValuePair <XName, InstanceValue> property in keyEntry.Value)
{
context.WroteInstanceKeyMetadataValue(keyEntry.Key, property.Key, property.Value);
}
}
}
}
foreach (Guid keyGuid in command.InstanceKeysToComplete)
{
Key key = PersistenceItemManager.Load <Key>(keyGuid);
if (key != null && key.TargetInstanceId == context.InstanceView.InstanceId)
{
if (key.State == InstanceKeyState.Associated) //if (key.State != InstanceKeyState.Completed)
{
key.State = InstanceKeyState.Completed;
PersistenceItemManager.SaveToFile <Key>(key);
context.CompletedInstanceKey(keyGuid);
}
}
else
{
// The SaveWorkflowCommand does not allow this. (Should it validate against it?)
throw new InvalidOperationException("Attempting to complete a key which is not associated.");
}
}
foreach (Guid keyGuid in command.InstanceKeysToFree)
{
Key key = PersistenceItemManager.Load <Key>(keyGuid);
if (key != null && key.TargetInstanceId == context.InstanceView.InstanceId)
{
if (key.State != InstanceKeyState.Completed)
{
context.CompletedInstanceKey(keyGuid);
}
key.State = InstanceKeyState.Unknown;
key.TargetInstanceId = Guid.Empty;
key.Metadata = null;
PersistenceItemManager.SaveToFile <Key>(key);
context.UnassociatedInstanceKey(keyGuid);
}
else
{
// The SaveWorkflowCommand does not allow this. (Should it validate against it?)
throw new InvalidOperationException("Attempting to complete a key which is not associated.");
}
}
foreach (KeyValuePair <Guid, IDictionary <XName, InstanceValue> > keyEntry in command.InstanceKeyMetadataChanges)
{
Key key = PersistenceItemManager.Load <Key>(keyEntry.Key);
if (key != null && key.TargetInstanceId == context.InstanceView.InstanceId && key.State == InstanceKeyState.Associated)
{
if (keyEntry.Value != null)
{
foreach (KeyValuePair <XName, InstanceValue> property in keyEntry.Value)
{
if (property.Value.IsDeletedValue)
{
key.Metadata.Remove(property.Key);
}
else
{
key.Metadata[property.Key] = new InstanceValue(property.Value);
}
context.WroteInstanceKeyMetadataValue(keyEntry.Key, property.Key, property.Value);
}
PersistenceItemManager.SaveToFile <Key>(key);
}
}
else
{
// The SaveWorkflowCommand does not allow this. (Should it validate against it?)
throw new InvalidOperationException("Attempting to complete a key which is not associated.");
}
}
foreach (KeyValuePair <XName, InstanceValue> property in command.InstanceMetadataChanges)
{
if (property.Value.IsDeletedValue)
{
instance.Metadata.Remove(property.Key);
}
else
{
instance.Metadata[property.Key] = new InstanceValue(property.Value);
}
context.WroteInstanceMetadataValue(property.Key, property.Value);
}
if (command.InstanceData.Count > 0)
{
instance.Data = new PropertyBag(command.InstanceData);
context.PersistedInstance(command.InstanceData);
}
PersistenceItemManager.SaveToFile <Instance>(instance);
// The command does the implicit advancement of everything into safe completed states.
if (command.CompleteInstance)
{
if (instance.Data == null)
{
instance.Data = new PropertyBag();
PersistenceItemManager.SaveToFile <Instance>(instance);
context.PersistedInstance(new Dictionary <XName, InstanceValue>());
}
Queue <Guid> keysToComplete = new Queue <Guid>();
foreach (KeyValuePair <Guid, InstanceKeyView> keyEntry in context.InstanceView.InstanceKeys)
{
if (keyEntry.Value.InstanceKeyState == InstanceKeyState.Associated)
{
keysToComplete.Enqueue(keyEntry.Key);
}
}
foreach (Guid keyToComplete in keysToComplete)
{
Key key = PersistenceItemManager.Load <Key>(keyToComplete);
key.State = InstanceKeyState.Completed;
PersistenceItemManager.SaveToFile <Key>(key);
context.CompletedInstanceKey(keyToComplete);
}
instance.State = InstanceState.Completed;
instance.Owner = Guid.Empty;
PersistenceItemManager.SaveToFile <Instance>(instance);
context.CompletedInstance();
context.InstanceHandle.Free();
}
if (command.UnlockInstance)
{
instance.Owner = Guid.Empty;
PersistenceItemManager.SaveToFile <Instance>(instance);
context.InstanceHandle.Free();
}
return(0);
}
static void UpdateKeyData(InstancePersistenceContext context, SaveWorkflowCommand saveWorkflowCommand)
{
InstanceView instanceView = context.InstanceView;
foreach (KeyValuePair <Guid, IDictionary <XName, InstanceValue> > keyEntry in saveWorkflowCommand.InstanceKeysToAssociate)
{
if (!instanceView.InstanceKeys.ContainsKey(keyEntry.Key))
{
context.AssociatedInstanceKey(keyEntry.Key);
if (keyEntry.Value != null)
{
foreach (KeyValuePair <XName, InstanceValue> property in keyEntry.Value)
{
context.WroteInstanceKeyMetadataValue(keyEntry.Key, property.Key, property.Value);
}
}
}
}
foreach (Guid key in saveWorkflowCommand.InstanceKeysToComplete)
{
InstanceKeyView existingKeyView;
if (instanceView.InstanceKeys.TryGetValue(key, out existingKeyView))
{
if (existingKeyView.InstanceKeyState != InstanceKeyState.Completed)
{
context.CompletedInstanceKey(key);
}
}
}
foreach (Guid key in saveWorkflowCommand.InstanceKeysToFree)
{
InstanceKeyView existingKeyView;
if (instanceView.InstanceKeys.TryGetValue(key, out existingKeyView))
{
context.UnassociatedInstanceKey(key);
}
}
foreach (KeyValuePair <Guid, IDictionary <XName, InstanceValue> > keyEntry in saveWorkflowCommand.InstanceKeyMetadataChanges)
{
if (keyEntry.Value != null)
{
foreach (KeyValuePair <XName, InstanceValue> property in keyEntry.Value)
{
context.WroteInstanceKeyMetadataValue(keyEntry.Key, property.Key, property.Value);
}
}
}
if (saveWorkflowCommand.CompleteInstance)
{
foreach (KeyValuePair <Guid, InstanceKeyView> instanceKeys in instanceView.InstanceKeys)
{
if (instanceKeys.Value != null)
{
if (instanceKeys.Value.InstanceKeyState == InstanceKeyState.Associated)
{
context.CompletedInstanceKey(instanceKeys.Key);
}
}
}
}
}