public async Task CommitAsync()
{
DataEventTransaction dataEventTransaction = this.dataEvents.Count > 0 ? new DataEventTransaction(DateTime.Now, this.dataEvents.ToArray()) : null;
if (dataEventTransaction != null)
{
await this.database.PostDataEventTransactionAsync(TransactionState.Uncommitted, dataEventTransaction);
}
await this.DoCommitAsync();
if (dataEventTransaction != null)
{
await this.database.PostDataEventTransactionAsync(TransactionState.Committed, dataEventTransaction);
}
HashSet <string> onCommitKeys = new HashSet <string>();
foreach (var onCommitRef in this.onCommitRefs)
{
if (onCommitRef.key == null || !onCommitKeys.Contains(onCommitRef.key))
{
await onCommitRef.onCommit();
if (onCommitRef.key != null)
{
onCommitKeys.Add(onCommitRef.key);
}
}
}
}
protected async Task ProcessCommittedDataEventTransactionAsync(DataEventTransaction dataEventTransaction)
{
logger.Trace($"ProcessCommittedDataEventTransactionAsync():dataEventTransaction={dataEventTransaction}");
await this.StoreImpactedRecordsInDataEventTransaction(TransactionState.Committed, dataEventTransaction);
this.incomingDataEventTransactions.Enqueue(dataEventTransaction);
this.monitor.PulseAll();
}
internal void PostDataEventTransaction(TransactionState transactionState, DataEventTransaction dataEventTransaction)
{
// Use ToArray() to avoid the collection being modified during the loop
DataEventTransactionListener[] listeners = transactionState == TransactionState.Uncommitted ? this.uncommittedTransactionListeners.ToArray() : this.committedTransactionListeners.ToArray();
listeners.Where(x => x.listener != null).AsParallel().ForAll(x => x.listener(dataEventTransaction));
Task[] tasks = listeners.Where(x => x.listenerAsync != null).Select(x => x.listenerAsync(dataEventTransaction)).ToArray();
Task.WaitAll(tasks.ToArray());
}
protected DataEvent[] CreateDynamicViewDataEvents(DataEventTransaction dataEventTransaction, DynamicView dynamicView)
{
logger.Trace($"RunAsync():dynamicView.name={dynamicView.Name}");
List <DataEvent> newRecordDataEvents = new List <DataEvent>();
// Don't send data events if DynamicView has dirty params because
// the DynamicView will be requeried anyways
if (!dynamicView.HasDirtyParams)
{
HashSet <string> newRecordDataEventFullKeys = new HashSet <string>();
foreach (var dataEvent in dataEventTransaction.dataEvents)
{
if (dataEvent is KeyValueDataEvent keyValueDataEvent && dynamicView.TryGetDynamicStatementFromRef(keyValueDataEvent.name, out StatementFromRef dynamicStatementFromRef))
{
// Fetch the preCommitImpactedRecords
Dict[] preCommitImpactedRecords = null;
if (HasImpactedRecords(TransactionState.Uncommitted, dataEvent, dynamicStatementFromRef.joinType))
{
string storageKey = GetImpactedRecordsStorageKey(dynamicView, dataEvent, TransactionState.Uncommitted);
preCommitImpactedRecords = (Dict[])dataEventTransaction.Fetch(storageKey);
}
// Fetch the postCommitImpactedRecords
Dict[] postCommitImpactedRecords = null;
if (HasImpactedRecords(TransactionState.Committed, dataEvent, dynamicStatementFromRef.joinType))
{
string storageKey = GetImpactedRecordsStorageKey(dynamicView, dataEvent, TransactionState.Committed);
postCommitImpactedRecords = (Dict[])dataEventTransaction.Fetch(storageKey);
}
// Determine the changes from each data event on each dynamic select
RecordDataEvent[] recordDataEvents = dynamicView.ProcessDataChange(dataEvent, preCommitImpactedRecords, postCommitImpactedRecords);
if (recordDataEvents != null)
{
dynamicView.UpdateChildDynamicParams(recordDataEvents);
foreach (var recordDataEvent in recordDataEvents)
{
string fullKey = $"{recordDataEvent.name}:{recordDataEvent.keyValue}";
if (!newRecordDataEventFullKeys.Contains(fullKey))
{
newRecordDataEventFullKeys.Add(fullKey);
newRecordDataEvents.Add(recordDataEvent);
}
}
}
}
}
}
return(newRecordDataEvents.ToArray());
}
// Commit methods
public void Commit()
{
DataEventTransaction dataEventTransaction = this.dataEvents.Count > 0 ? new DataEventTransaction(DateTime.Now, this.dataEvents.ToArray()) : null;
if (dataEventTransaction != null)
{
this.database.PostDataEventTransaction(TransactionState.Uncommitted, dataEventTransaction);
}
this.DoCommit();
if (dataEventTransaction != null)
{
this.database.PostDataEventTransaction(TransactionState.Committed, dataEventTransaction);
}
}
public async Task CommitAsync()
{
DataEventTransaction dataEventTransaction = this.dataEvents.Count > 0 ? new DataEventTransaction(DateTime.Now, this.dataEvents.ToArray()) : null;
if (dataEventTransaction != null)
{
await this.database.PostDataEventTransactionAsync(TransactionState.Uncommitted, dataEventTransaction);
}
await this.DoCommitAsync();
if (dataEventTransaction != null)
{
await this.database.PostDataEventTransactionAsync(TransactionState.Committed, dataEventTransaction);
}
foreach (var onCommit in this.onCommits)
{
await onCommit();
}
}
protected async Task SendToListenerAsync(DataEventTransaction dataEventTransaction)
{
if (logger.IsTraceEnabled)
{
logger.Trace($"SendToListenerAsync():dataEventTransaction={dataEventTransaction}");
}
else if (logger.IsDebugEnabled)
{
logger.Debug($"SendToListenerAsync():dataEventTransaction.dataEvents.Length={dataEventTransaction.dataEvents.Length}");
}
if (this.listener != null)
{
this.listener(dataEventTransaction);
}
if (this.asyncListener != null)
{
await asyncListener(dataEventTransaction);
}
}
protected async Task StoreImpactedRecordsInDataEventTransaction(TransactionState transactionState, DataEventTransaction dataEventTransaction)
{
foreach (var dynamicView in this.dynamicViews)
{
foreach (var dataEvent in dataEventTransaction.dataEvents)
{
if (dataEvent is KeyValueDataEvent keyValueDataEvent && dynamicView.TryGetDynamicStatementFromRef(keyValueDataEvent.name, out StatementFromRef dynamicStatementFromRef))
{
if (HasImpactedRecords(transactionState, keyValueDataEvent, dynamicStatementFromRef.joinType))
{
Dict[] impactedRecords = await dynamicView.GetImpactedRecordsAsync(keyValueDataEvent);
if (impactedRecords != null && impactedRecords.Length > 0)
{
string storageKey = GetImpactedRecordsStorageKey(dynamicView, dataEvent, transactionState);
dataEventTransaction.Store(storageKey, impactedRecords);
}
}
}
}
}
}
protected async Task ProcessUncommittedDataEventTransactionAsync(DataEventTransaction dataEventTransaction)
{
await this.StoreImpactedRecordsInDataEventTransaction(TransactionState.Uncommitted, dataEventTransaction);
}