private static void RemoveLockingInformation(EntityToken entityToken, object ownerId)
{
LockingInformation lockingInformation;
if (!_lockingInformations.TryGetValue(entityToken, out lockingInformation))
{
return;
}
if (Equals(lockingInformation.OwnerId, ownerId))
{
_lockingInformations.Remove(entityToken);
}
string serializedOwnerId = SerializeOwnerId(ownerId);
string serializedEntityToken = EntityTokenSerializer.Serialize(entityToken);
ILockingInformation lockingInformationDataItem =
DataFacade.GetData <ILockingInformation>()
.SingleOrDefault(f => f.SerializedEntityToken == serializedEntityToken &&
f.SerializedOwnerId == serializedOwnerId);
if (lockingInformationDataItem == null)
{
Log.LogWarning(LogTitle, "Failed to find entity token lock. EntityToken: " + serializedEntityToken);
return;
}
DataFacade.Delete(lockingInformationDataItem);
}
private static void AddLockingInformation(EntityToken entityToken, object ownerId)
{
LockingInformation lockingInformation;
if (_lockingInformations.TryGetValue(entityToken, out lockingInformation))
{
if (object.Equals(lockingInformation.OwnerId, ownerId))
{
// NO OP: The owner may acquire a lock multiple times
return;
}
// This will only happen if an entity token subclass is not rightly implemented
throw new ActionLockingException("This item is used by another user, try again.");
}
lockingInformation = new LockingInformation
{
Username = UserValidationFacade.GetUsername(),
OwnerId = ownerId
};
string serializedOwnerId = SerializeOwnerId(lockingInformation.OwnerId);
ILockingInformation li = DataFacade.BuildNew <ILockingInformation>();
li.Id = Guid.NewGuid();
li.SerializedEntityToken = EntityTokenSerializer.Serialize(entityToken);
li.SerializedOwnerId = serializedOwnerId;
li.Username = lockingInformation.Username;
DataFacade.AddNew <ILockingInformation>(li);
_lockingInformations.Add(entityToken, lockingInformation);
}
private static void UpdateLockingInformation(EntityToken entityToken, object newOwnerId)
{
LockingInformation lockingInformation;
if (!_lockingInformations.TryGetValue(entityToken, out lockingInformation))
{
throw new InvalidOperationException("LockingInformation record missing");
}
string serializedEntityToken = EntityTokenSerializer.Serialize(entityToken);
ILockingInformation lockingInformationDataItem =
DataFacade.GetData <ILockingInformation>().
Single(f => f.SerializedEntityToken == serializedEntityToken);
lockingInformationDataItem.SerializedOwnerId = SerializeOwnerId(newOwnerId);
DataFacade.Update(lockingInformationDataItem);
lockingInformation.OwnerId = newOwnerId;
}
