public Executor(ProcessContext processContext)
{
ProcessContext = processContext;
Results = new List <IResults>();
Task.Run(new Action(Execute));
}
public void ScheduleToProcess(ProcessContext request)
{
lock (_processLock)
{
_processQueue.Add(request);
RunNextRequest();
}
}
private void FinishExecute()
{
var response = new MessageReponse
{
Id = ProcessContext.Request.Id,
Results = Results.ToArray(),
Error = _error?.Message
};
ProcessContext.Callback(response);
ExecutorController.Instance.ReleaseExecutor(this);
}
public void Compute(ProcessContext context)
{
var hasTransactionCommand = false;
var tablesToRead = new List <string>();
var tablesToLock = new List <string>();
var withDatabase = string.Empty;
var withTable = string.Empty;
foreach (var command in context.Request.Commands)
{
switch (command.Type)
{
case CommandType.WithDatabase:
withDatabase = ((WithDatabaseCommand)command).DatabaseName;
break;
case CommandType.WithTable:
withTable = ((WithTableCommand)command).TableName;
break;
case CommandType.Set:
tablesToLock.Add($"{withDatabase}.{withTable}");
break;
case CommandType.OpenTransaction:
case CommandType.CommitTransaction:
case CommandType.RollbackTransaction:
hasTransactionCommand = true;
break;
}
}
context.TablesToRead = tablesToRead.ToArray();
context.TablesToLock = tablesToLock.ToArray();
var containsTransaction = context.Connection.ContainsItemInBag("Transaction");
if (!hasTransactionCommand && !containsTransaction)
{
CreateVirtualTransaction(context);
}
}
private void CreateVirtualTransaction(ProcessContext context)
{
var listCommands = context.Request.Commands
.ToList();
listCommands
.Insert(0, new OpenTransactionCommand
{
IsVirtual = true
});
listCommands
.Add(new CommitTransactionCommand
{
IsVirtual = true
});
context.Request.Commands = listCommands
.ToArray();
}
