private TccTransactionData ConvertDataRowToTccTransactionData(DataRow dr)
{
TccTransactionData data = new TccTransactionData();
data.TxId = dr["TxId"].ToString();
data.ServiceAtComputer = dr["ServiceAtComputer"].ToString();
data.SchemaName = dr["TxSchema"].ToString();
data.BeginTime = Convert.ToDateTime(dr["BeginTime"]);
data.TxState = (TccTransactionState)dr["TxState"];
string temp = dr["WorkState"].ToString();
string[] strs = temp.Split(new string[] { "," }, StringSplitOptions.None);
TccWorkState[] states = new TccWorkState[strs.Length];
for (int i = 0; i < strs.Length; i++)
{
states[i] = (TccWorkState)Convert.ToInt32(strs[i]);
}
data.WorkStates = states;
data.ContextKey = dr["ContextKey"].ToString();
data.ContextData = (byte[])dr["ContextData"];
if (dr["Error"] != DBNull.Value)
{
data.Error = Convert.ToString(dr["Error"]);
}
return(data);
}
internal void RunAction(TContext context, TccAction nextAction, Action <Exception> callback)
{
Action <TccWorkUnitContext <TContext> > Proc;
TccWorkState succState;
TccWorkState failState;
Tracing.InfoFmt("WorkUnit<{0}>.Run{1} State:{2}", _workName, nextAction, _state);
switch (nextAction)
{
case TccAction.Try:
if (_state != TccWorkState.None)
{
throw new Exception("Unexcepted WorkUnit State:" + _state);
}
_state = TccWorkState.Trying;
Proc = Try;
succState = TccWorkState.Tryed;
failState = TccWorkState.TryFailed;
break;
case TccAction.Confirm:
if (_state != TccWorkState.Tryed)
{
throw new Exception("Unexcepted WorkUnit State:" + _state);
}
Proc = Confirm;
_state = TccWorkState.Confirming;
succState = TccWorkState.Confirmed;
failState = TccWorkState.ConfirmFailed;
break;
case TccAction.Cancel:
if (_state != TccWorkState.Tryed && _state != TccWorkState.TryFailed)
{
throw new Exception("Unexcepted WorkUnit State:" + _state);
}
Proc = Cancel;
_state = TccWorkState.Cancelling;
succState = TccWorkState.Cancelled;
failState = TccWorkState.CancelFailed;
break;
default:
throw new Exception("NeverGoHere");
}
int hasReturned = 0;
TccWorkUnitContext <TContext> ctx = new TccWorkUnitContext <TContext>(
context,
delegate(Exception ex) {
if (ex != null)
{
Tracing.ErrorFmt(ex, "WorkUnit<{0}>.Run{1} Failed in callback.", _workName, nextAction);
}
else
{
Tracing.InfoFmt("WorkUnit<{0}>.Run{1} ok.", _workName, nextAction);
}
if (Interlocked.CompareExchange(ref hasReturned, 1, 0) == 0)
{
if (ex == null)
{
_state = succState;
callback(null);
}
else
{
_error = ex;
_state = failState;
callback(ex);
}
}
else
{
Tracing.ErrorFmt("WorkUnit<{0}>.Run{1} callback return more than once.", _workName, nextAction);
}
}
);
try {
Proc(ctx);
} catch (Exception ex) {
if (Interlocked.CompareExchange(ref hasReturned, 1, 0) == 0)
{
Tracing.ErrorFmt(ex, "WorkUnit<{0}>.Run{1} Failed.", _workName, nextAction);
_error = ex;
_state = failState;
callback(ex);
}
else
{
Tracing.ErrorFmt("WorkUnit<{0}>.Run{1} return more than once.", _workName, nextAction);
}
}
}
private string WorkStatesToString(TccWorkState[] states)
{
StringBuilder workstates = new StringBuilder();
for (int i = 0; i < states.Length; i++)
{
workstates.Append((int)states[i]);
if (i != states.Length - 1)
workstates.Append(",");
}
return workstates.ToString();
}
private TccTransactionData ConvertDataRowToTccTransactionData(DataRow dr)
{
TccTransactionData data = new TccTransactionData();
data.TxId = dr["TxId"].ToString();
data.ServiceAtComputer = dr["ServiceAtComputer"].ToString();
data.SchemaName = dr["TxSchema"].ToString();
data.BeginTime = Convert.ToDateTime(dr["BeginTime"]);
data.TxState = (TccTransactionState)dr["TxState"];
string temp = dr["WorkState"].ToString();
string[] strs = temp.Split(new string[] { "," }, StringSplitOptions.None);
TccWorkState[] states = new TccWorkState[strs.Length];
for (int i = 0; i < strs.Length; i++)
{
states[i] = (TccWorkState)Convert.ToInt32(strs[i]);
}
data.WorkStates = states;
data.ContextKey = dr["ContextKey"].ToString();
data.ContextData = (byte[])dr["ContextData"];
if (dr["Error"] != DBNull.Value)
data.Error = Convert.ToString(dr["Error"]);
return data;
}
