protected void EndRequest(IAsyncResult asyncResult)
{
for (int i = 0; i < _request.Actions.Count; i++)
{
if (_result[i].ReturnValue is Exception && _request.StopOnError)
{
throw (_result[i].ReturnValue as Exception);
}
//if (_request.Actions[i].Target != null)
//{
// // Auto-restore the object data
// //_request.Actions[i].Target.Restore(_result.Data[i] as DataTable);
//}
if (_request.Actions[i].OnComplete != null)
{
_request.Actions[i].OnComplete();
}
}
if (_onComplete != null)
{
_onComplete();
}
_request = null;
_result = null;
}
public ProxyResult(ProxyRequest request)
{
_data = new ProxyResultActionData[request.Actions.Count];
for (int i = 0; i < _data.Length; i++)
{
_data[i] = new ProxyResultActionData(i);
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private ProxyRequest BeginRequest(bool async)
{
if (_request != null)
{
throw new InvalidOperationException("Request already in progress");
}
_request = new ProxyRequest(async);
_request.Send = new Action(this.SendRequest);
return(_request);
}
public ProxyResult ProcessRequest(ProxyRequest request)
{
_instances.Add(OperationContext.Current, this);
// Proxy result used to store the results of the actions
ProxyResult result = new ProxyResult(request);
_result = result;
// Action loop
for (int currentIndex = 0; currentIndex < request.Actions.Count; currentIndex++)
{
ProxyRequestAction action = request.Actions[currentIndex];
CurrentAction = action;
try
{
// Replace proxy object parameters with actual values (from previous actions)
for (int p = 0; p < action.Parameters.Length; p++)
{
if (action.Parameters[p] is IDataBoundObject)
{
IDataBoundObject o = (IDataBoundObject)action.Parameters[p];
if (o.ProxyActionIndex < currentIndex)
{
// Parameter is a proxy object referencing a previous step, so replace with that step's result
action.Parameters[p] = result[o.ProxyActionIndex].ReturnValue;
}
else
{
throw new InvalidOperationException(String.Format("Cannot execute action #{0} because it requires the result of action #{1}", currentIndex, o.ProxyActionIndex));
}
}
}
// Get the method to invoke
Type targetType = action.Caller != null?action.Caller.GetType() : Type.GetType(action.MethodType);
MethodInfo method = targetType.GetMethod(action.MethodName, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);
// Perform the action and store the result
object val = method.Invoke(action.Caller, action.Parameters);
result[currentIndex].ReturnValue = val;
}
catch (Exception ex)
{
result[currentIndex].ReturnValue = ex is TargetInvocationException ?
((TargetInvocationException)ex).InnerException :
ex;
// If request is specified as a transaction, break execution
if (request.StopOnError)
{
break;
}
}
}
// Done, remove from static results and return
_result = null;
this.CurrentAction = null;
_instances.Remove(OperationContext.Current);
return(result);
}
