private IRpcHander <T> ResolveImplementor <T>(ModelActionOption option, IContext context, T t, ICriterion criterion) where T : class, new()
{
IRpcHander <T> implementor = null;
Type type = _TypeCache.ResolveType <T>();
if (type == null)
{
var message = Exceptions.ComposeRpcImplementorResolutionError <T>(option, t, context);
context.SetError(500, message.ToPublish());
EventWriter.WriteError(message.ToLog(), SeverityType.Error);
}
else
{
implementor = Activator.CreateInstance(type) as IRpcHander <T>;
if (implementor == null)
{
var message = Exceptions.ComposeRpcImplementorInstantiationError <T>(option, t, context, type.FullName);
context.SetError(500, message.ToPublish());
var props = eXtensibleConfig.GetProperties();
props.Add(XFConstants.Context.Ticket, message.Id);
EventWriter.WriteError(message.ToLog(), SeverityType.Error, XFConstants.Category.DataAccess, props);
}
else
{
EventWriter.Inform(String.Format("RpcHandler selected: {0}", type.FullName));
implementor.Context = context;
}
}
return(implementor);
}
//private U Execute<T, U>(T model, ICriterion criterion, IRequestContext requestContext) where T : class, new()
//{
// U result = default(U);
// var implementor = ResolveImplementor<T>(ModelActionOption.Execute, requestContext, null, criterion);
// if (implementor != null)
// {
// IContext context = requestContext as IContext;
// result = implementor.Execute<U>(model, criterion, context);
// }
// return result;
//}
#endregion
// string s = context.GetValue<string>(XFConstants.Context.Application);
private string ResolveDbKey <T>(IContext context) where T : class, new()
{
string key = DatabaseKeyResolver.Resolve <T>(context);
if (String.IsNullOrWhiteSpace(key) && !String.IsNullOrWhiteSpace(eXtensibleConfig.ConnectionStringKey))
{
key = eXtensibleConfig.ConnectionStringKey;
}
if (eXtensibleConfig.Inform)
{
EventWriter.Inform(String.Format("database key resolved to {0}", key));
}
return(key);
}
private IModelDataGateway <T> ResolveImplementor <T>(ModelActionOption option, IContext context, T t, ICriterion criterion) where T : class, new()
{
IModelDataGateway <T> implementor = null;
Type type = _TypeCache.ResolveType <T>();
if (type == null)
{
// if not, create one and add the model. then add sproc based if exists, otherwise add inline on appcontext-model by appcontext-model basis;
if (_DbConfigs.Contains(context.ApplicationContextKey))
{
var modelType = typeof(T);
string modelKey = modelType.FullName;
var found = _DbConfigs[context.ApplicationContextKey].Models.Find(x => x.Key.Equals(modelKey));
if (found == null)
{
XF.Common.Db.Model model = new Common.Db.Model()
{
Key = modelKey, modelType = modelType.AssemblyQualifiedName, ModelActions = new List <Common.Db.ModelAction>(), Commands = new List <Common.Db.DbCommand>(), DataMaps = new List <Common.Db.DataMap>()
};
_DbConfigs[context.ApplicationContextKey].Models.Add(model);
found = _DbConfigs[context.ApplicationContextKey].Models.Find(x => x.Key.Equals(modelKey));
}
if (found != null)
{
implementor = new ConfigModelDataGateway <T>(found);
}
else
{
}
}
else if (eXtensibleConfig.Infer)
{
implementor = new GenericModelDataGateway <T>();
}
//if (implementor == null)
//{
// var message = Exceptions.ComposeImplementorResolutionError<T>(option, t, context);
// context.SetError(500, message.ToPublish());
// EventWriter.WriteError(message.ToLog(), SeverityType.Error);
//}
}
else
{
implementor = Activator.CreateInstance(type) as IModelDataGateway <T>;
}
if (implementor == null)
{
if (type != null)
{
var message = Exceptions.ComposeImplementorInstantiationError <T>(option, t, context, type.FullName);
context.SetError(500, message.ToPublish());
var props = eXtensibleConfig.GetProperties();
props.Add(XFConstants.Context.Ticket, message.Id);
EventWriter.WriteError(message.ToLog(), SeverityType.Error, XFConstants.Category.DataAccess, props);
}
else
{
var message = Exceptions.ComposeImplementorResolutionError <T>(option, t, context);
context.SetError(500, message.ToPublish());
var props = eXtensibleConfig.GetProperties();
props.Add(XFConstants.Context.Ticket, message.Id);
EventWriter.WriteError(message.ToLog(), SeverityType.Error, XFConstants.Category.DataAccess, props);
}
}
else
{
if (eXtensibleConfig.Inform)
{
EventWriter.Inform(String.Format("MDG selected: {0}", implementor.GetType().FullName));
}
implementor.DataService = this as IDatastoreService;
implementor.Context = context;
ICacheable <T> cacheable = implementor as ICacheable <T>;
if (cacheable != null)
{
cacheable.Cache = Cache;
}
// TODO, outsource this
IModelDataGatewayInitializeable initializable = implementor as IModelDataGatewayInitializeable;
if (initializable != null)
{
initializable.Initialize <T>(option, context, t, criterion, ResolveDbKey <T>);
}
}
return(implementor);
}
