public AcknowledgeMessage ManageSequence(DataMessage dataMessage, IList items, DataServiceTransaction dataServiceTransaction)
{
AcknowledgeMessage acknowledgeMessage = null;
switch (dataMessage.operation)
{
case DataMessage.FillOperation:
{
Sequence sequence = CreateSequence(dataMessage.clientId as string, items, dataMessage.body as IList, dataServiceTransaction);
acknowledgeMessage = GetSequencedMessage(dataMessage, sequence);
}
break;
case DataMessage.GetOperation:
case DataMessage.GetSequenceIdOperation:
{
Sequence sequence = CreateSequence(dataMessage.clientId as string, items, null, dataServiceTransaction);
acknowledgeMessage = GetSequencedMessage(dataMessage, sequence);
}
break;
default:
{
if (log != null && log.IsErrorEnabled)
{
log.Error(__Res.GetString(__Res.SequenceManager_Unknown, dataMessage.operation));
}
}
break;
}
return(acknowledgeMessage);
}
public void RemoveIdentityFromSequence(Sequence sequence, Identity identity, int position, DataServiceTransaction dataServiceTransaction)
{
if (position == -1)
{
return;
}
lock (_objLock)
{
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if (sequenceIdMap != null)
{
sequenceIdMap.Remove(sequence.Id);
//Release the item if it does'n occur in any sequence
if (sequenceIdMap.Count == 0)
{
_itemIdToItemHash.Remove(identity);
_itemIdToSequenceIdMapHash.Remove(identity);
}
if (sequence[position].Equals(identity))
{
sequence.RemoveAt(position);
}
else
{
sequence.Remove(identity);
}
if (dataServiceTransaction != null)
{
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.DeleteFromCollection, _dataDestination, sequence, position, identity);
}
}
else
{
_itemIdToItemHash.Remove(identity);
sequence.Remove(identity);
}
}
}
public Sequence CreateSequence(string clientId, IList result, IList parameters, DataServiceTransaction dataServiceTransaction)
{
Sequence sequence = null;
Identity[] identities = new Identity[result.Count];
lock (_objLock)
{
for (int i = 0; i < identities.Length; i++)
{
if (result[i] != null)
{
Identity identity = Identity.GetIdentity(result[i], _dataDestination);
identities[i] = identity;
if (!_itemIdToItemHash.ContainsKey(identity))
{
_itemIdToItemHash.Add(identity, new ItemWrapper(result[i]));
}
else
{
ItemWrapper itemWrapper = _itemIdToItemHash[identity] as ItemWrapper;
itemWrapper.Instance = result[i];
}
}
}
//Lookup existing sequence
if (parameters != null)
{
if (_parametersToSequenceIdHash.Contains(parameters))
{
sequence = _parametersToSequenceIdHash[parameters] as Sequence;
}
}
else
{
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identities[0]] as IDictionary;
if (sequenceIdMap != null)
{
foreach (Sequence sequenceTmp in sequenceIdMap.Values)
{
if (sequenceTmp.Parameters == null)
{
sequence = sequenceTmp;
break;
}
}
}
}
//if (parameters == null)
// parameters = new ArrayList();
if (sequence == null)
{
sequence = new Sequence();
sequence.Id = sequence.GetHashCode();
object[] parametersArray = null;
if (parameters != null)
{
parametersArray = new object[parameters.Count];
parameters.CopyTo(parametersArray, 0);
sequence.Parameters = parametersArray;
_parametersToSequenceIdHash[parameters] = sequence;
}
for (int i = 0; i < identities.Length; i++)
{
Identity identity = identities[i];
AddIdentityToSequence(sequence, identity, dataServiceTransaction);
}
_sequenceIdToSequenceHash[sequence.Id] = sequence;
if (log.IsDebugEnabled)
{
log.Debug(__Res.GetString(__Res.SequenceManager_CreateSeq, sequence.Id, clientId));
}
}
else
{
for (int i = 0; i < identities.Length; i++)
{
Identity identity = identities[i];
Identity existingIdentity = null;
if (i < sequence.Count)
{
existingIdentity = sequence[i];
}
if (!identity.Equals(existingIdentity))
{
//Identity not found in sequence
if (!sequence.Contains(identity))
{
int position = AddIdentityToSequence(sequence, identity, dataServiceTransaction);
}
}
}
}
sequence.AddSubscriber(clientId);
ArrayList sequences;
if (_clientIdToSequenceHash.Contains(clientId))
{
sequences = _clientIdToSequenceHash[clientId] as ArrayList;
}
else
{
sequences = new ArrayList();
_clientIdToSequenceHash[clientId] = sequences;
}
if (!sequences.Contains(sequence))
{
sequences.Add(sequence);
}
}
return(sequence);
}
public int AddIdentityToSequence(Sequence sequence, Identity identity, DataServiceTransaction dataServiceTransaction)
{
return(AddIdentityToSequence(sequence, -1, identity, dataServiceTransaction));
}
public void RemoveIdentityFromSequence(Sequence sequence, Identity identity, DataServiceTransaction dataServiceTransaction)
{
RemoveIdentityFromSequence(sequence, identity, sequence.IndexOf(identity), dataServiceTransaction);
}
public int AddIdentityToSequence(Sequence sequence, int position, Identity identity, DataServiceTransaction dataServiceTransaction)
{
lock(_objLock)
{
if(position == -1 || position > sequence.Size)
position = sequence.Add(identity);
else
sequence.Insert(position, identity);
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if( sequenceIdMap == null )
{
sequenceIdMap = new Hashtable();
_itemIdToSequenceIdMapHash[identity] = sequenceIdMap;
}
sequenceIdMap[sequence.Id] = sequence;
if(dataServiceTransaction != null)
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.InsertIntoCollection, _dataDestination, sequence, position, identity);
return position;
}
}
public int AddIdentityToSequence(Sequence sequence, int position, Identity identity, DataServiceTransaction dataServiceTransaction)
{
lock (_objLock)
{
if (position == -1 || position > sequence.Size)
{
position = sequence.Add(identity);
}
else
{
sequence.Insert(position, identity);
}
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if (sequenceIdMap == null)
{
sequenceIdMap = new Hashtable();
_itemIdToSequenceIdMapHash[identity] = sequenceIdMap;
}
sequenceIdMap[sequence.Id] = sequence;
if (dataServiceTransaction != null)
{
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.InsertIntoCollection, _dataDestination, sequence, position, identity);
}
return(position);
}
}
public void ManageMessageBatch(MessageBatch messageBatch, DataServiceTransaction dataServiceTransaction)
{
DataMessage dataMessage = messageBatch.IncomingMessage;
//Manage existing sequences
for(int j = 0; j < messageBatch.Messages.Count; j++)
{
IMessage message = messageBatch.Messages[j] as IMessage;
if( message is UpdateCollectionMessage )
{
UpdateCollectionMessage updateCollectionMessage = message as UpdateCollectionMessage;
//update collections, fix sequences
IList fillParameters = updateCollectionMessage.collectionId as IList;
Sequence sequence = _dataDestination.SequenceManager.GetSequence(fillParameters);
if( sequence != null )
{
ApplyUpdateCollectionMessage(sequence, updateCollectionMessage);
}
}
}
for (int j = 0; j < messageBatch.Messages.Count; j++)
{
DataMessage dataMessageTmp = messageBatch.Messages[j] as DataMessage;
if (dataMessageTmp != null)
{
switch (dataMessageTmp.operation)
{
case DataMessage.CreateAndSequenceOperation:
{
//dataMessage.identity contains identity
//dataMessage.body contains the object
IList result = new ArrayList();
result.Add(dataMessageTmp.body);
//Will generate an UpdateCollectionMessage too (server adding item to collection)
Sequence sequence = this.CreateSequence(dataMessageTmp.clientId as string, result, null, dataServiceTransaction);
SequencedMessage sequencedMessage = this.GetSequencedMessage(dataMessageTmp, sequence);
messageBatch.Messages[j] = sequencedMessage;
}
break;
}
}
}
for (int j = 0; j < messageBatch.Messages.Count; j++)
{
if (messageBatch.Messages[j] is DataMessage)
{
DataMessage dataMessageTmp = messageBatch.Messages[j] as DataMessage;
SyncSequenceChanges(dataMessageTmp, dataServiceTransaction);
}
if (messageBatch.Messages[j] is SequencedMessage)
{
SequencedMessage sequencedMessage = messageBatch.Messages[j] as SequencedMessage;
DataMessage dataMessageTmp = sequencedMessage.dataMessage;
SyncSequenceChanges(dataMessageTmp, dataServiceTransaction);
}
}
}
void SyncSequenceChanges(DataMessage dataMessage, DataServiceTransaction dataServiceTransaction)
{
lock(_objLock)
{
ArrayList sequenceList = new ArrayList(_sequenceIdToSequenceHash.Values.Count);
sequenceList.AddRange(_sequenceIdToSequenceHash.Values);//Hashtable may be changed here
foreach (Sequence sequence in sequenceList)
{
switch(dataMessage.operation)
{
case DataMessage.CreateOperation:
case DataMessage.CreateAndSequenceOperation:
RefreshSequence(sequence, dataMessage, dataMessage.body, dataServiceTransaction);
break;
case DataMessage.DeleteOperation:
{
//RefreshSequence(sequence, dataMessage, dataMessage.body, dataServiceTransaction);
Identity identity = Identity.GetIdentity(dataMessage.body, _dataDestination);
int index = sequence.IndexOf(identity);
if( index != -1 )
RemoveIdentityFromSequence(sequence, identity, dataServiceTransaction);
}
break;
case DataMessage.UpdateOperation:
RefreshSequence(sequence, dataMessage, (dataMessage.body as IList)[2], dataServiceTransaction);
break;
}
}
}
}
public Sequence CreateSequence(string clientId, IList result, IList parameters, DataServiceTransaction dataServiceTransaction)
{
Sequence sequence = null;
Identity[] identities = new Identity[result.Count];
lock(_objLock)
{
for(int i = 0; i < identities.Length; i++)
{
if( result[i] != null )
{
Identity identity = Identity.GetIdentity(result[i], _dataDestination);
identities[i] = identity;
if( ! _itemIdToItemHash.ContainsKey(identity) )
_itemIdToItemHash.Add(identity, new ItemWrapper(result[i]));
else
{
ItemWrapper itemWrapper = _itemIdToItemHash[identity] as ItemWrapper;
itemWrapper.Instance = result[i];
}
}
}
//Lookup existing sequence
if (parameters != null)
{
if (_parametersToSequenceIdHash.Contains(parameters))
sequence = _parametersToSequenceIdHash[parameters] as Sequence;
}
else
{
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identities[0]] as IDictionary;
if (sequenceIdMap != null)
{
foreach (Sequence sequenceTmp in sequenceIdMap.Values)
{
if (sequenceTmp.Parameters == null)
{
sequence = sequenceTmp;
break;
}
}
}
}
//if (parameters == null)
// parameters = new ArrayList();
if( sequence == null )
{
sequence = new Sequence();
sequence.Id = sequence.GetHashCode();
object[] parametersArray = null;
if (parameters != null)
{
parametersArray = new object[parameters.Count];
parameters.CopyTo(parametersArray, 0);
sequence.Parameters = parametersArray;
_parametersToSequenceIdHash[parameters] = sequence;
}
for(int i = 0; i < identities.Length; i++)
{
Identity identity = identities[i];
AddIdentityToSequence(sequence, identity, dataServiceTransaction);
}
_sequenceIdToSequenceHash[sequence.Id] = sequence;
if( log.IsDebugEnabled )
log.Debug(__Res.GetString(__Res.SequenceManager_CreateSeq, sequence.Id, clientId));
}
else
{
for(int i = 0; i < identities.Length; i++)
{
Identity identity = identities[i];
Identity existingIdentity = null;
if( i < sequence.Count )
existingIdentity = sequence[i];
if( !identity.Equals(existingIdentity) )
{
//Identity not found in sequence
if( !sequence.Contains(identity) )
{
int position = AddIdentityToSequence(sequence, identity, dataServiceTransaction);
}
}
}
}
sequence.AddSubscriber(clientId);
ArrayList sequences;
if( _clientIdToSequenceHash.Contains(clientId) )
sequences = _clientIdToSequenceHash[clientId] as ArrayList;
else
{
sequences = new ArrayList();
_clientIdToSequenceHash[clientId] = sequences;
}
if( !sequences.Contains(sequence) )
sequences.Add(sequence);
}
return sequence;
}
public AcknowledgeMessage ManageSequence(DataMessage dataMessage, IList items, DataServiceTransaction dataServiceTransaction)
{
AcknowledgeMessage acknowledgeMessage = null;
switch(dataMessage.operation)
{
case DataMessage.FillOperation:
{
Sequence sequence = CreateSequence(dataMessage.clientId as string, items, dataMessage.body as IList, dataServiceTransaction);
acknowledgeMessage = GetSequencedMessage(dataMessage, sequence);
}
break;
case DataMessage.GetOperation:
case DataMessage.GetSequenceIdOperation:
{
Sequence sequence = CreateSequence(dataMessage.clientId as string, items, null, dataServiceTransaction);
acknowledgeMessage = GetSequencedMessage(dataMessage, sequence);
}
break;
default:
{
if( log != null && log.IsErrorEnabled )
log.Error(__Res.GetString(__Res.SequenceManager_Unknown, dataMessage.operation));
}
break;
}
return acknowledgeMessage;
}
public void RemoveIdentityFromSequence(Sequence sequence, Identity identity, int position, DataServiceTransaction dataServiceTransaction)
{
if( position == -1 )
return;
lock(_objLock)
{
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if (sequenceIdMap != null)
{
sequenceIdMap.Remove(sequence.Id);
//Release the item if it does'n occur in any sequence
if (sequenceIdMap.Count == 0)
{
_itemIdToItemHash.Remove(identity);
_itemIdToSequenceIdMapHash.Remove(identity);
}
if (sequence[position].Equals(identity))
sequence.RemoveAt(position);
else
sequence.Remove(identity);
if (dataServiceTransaction != null)
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.DeleteFromCollection, _dataDestination, sequence, position, identity);
}
else
{
_itemIdToItemHash.Remove(identity);
sequence.Remove(identity);
}
}
}
public void RemoveIdentityFromSequence(Sequence sequence, Identity identity, DataServiceTransaction dataServiceTransaction)
{
RemoveIdentityFromSequence(sequence, identity, sequence.IndexOf(identity), dataServiceTransaction);
}
public int AddIdentityToSequence(Sequence sequence, Identity identity, DataServiceTransaction dataServiceTransaction)
{
return AddIdentityToSequence(sequence, -1, identity, dataServiceTransaction);
}
private static void SetCurrentDataServiceTransaction(DataServiceTransaction dataServiceTransaction)
{
FluorineWebSafeCallContext.SetData(FluorineContext.FluorineDataServiceTransaction, dataServiceTransaction);
}
public Sequence RefreshSequence(Sequence sequence, DataMessage dataMessage, object item, DataServiceTransaction dataServiceTransaction)
{
if (sequence.Parameters == null)
return sequence;
DotNetAdapter dotNetAdapter = _dataDestination.ServiceAdapter as DotNetAdapter;
if( dotNetAdapter != null )
{
bool isCreate = (dataMessage.operation == DataMessage.CreateOperation || dataMessage.operation == DataMessage.CreateAndSequenceOperation);
int fill = dotNetAdapter.RefreshFill( sequence.Parameters, item, isCreate );
switch(fill)
{
case Assembler.ExecuteFill:
{
IList parameters = sequence.Parameters;
//if (parameters == null)
// parameters = new object[0];
DataMessage fillDataMessage = new DataMessage();
fillDataMessage.clientId = dataMessage.clientId;
fillDataMessage.operation = DataMessage.FillOperation;
fillDataMessage.body = parameters != null ? parameters : new object[0];
IList result = _dataDestination.ServiceAdapter.Invoke(fillDataMessage) as IList;
return CreateSequence(dataMessage.clientId as string, result, parameters, dataServiceTransaction);
}
case Assembler.AppendToFill:
{
Identity identity = Identity.GetIdentity(item, _dataDestination);
if( !sequence.Contains(identity) )
AddIdentityToSequence(sequence, identity, dataServiceTransaction);
_itemIdToItemHash[identity] = new ItemWrapper(item);
}
break;
case Assembler.RemoveFromFill:
{
Identity identity = Identity.GetIdentity(item, _dataDestination);
if( sequence.Contains(identity) )
RemoveIdentityFromSequence(sequence, identity, dataServiceTransaction);
}
break;
case Assembler.DoNotExecuteFill:
break;
}
}
return sequence;
}
internal static DataServiceTransaction Begin(DataService dataService)
{
DataServiceTransaction dataServiceTransaction = new DataServiceTransaction(dataService);
SetCurrentDataServiceTransaction(dataServiceTransaction);
return dataServiceTransaction;
}
private static void SetCurrentDataServiceTransaction(DataServiceTransaction dataServiceTransaction)
{
FluorineWebSafeCallContext.SetData(FluorineContext.FluorineDataServiceTransaction, dataServiceTransaction);
}