public virtual async Task <T> ExecuteQuery <T>(ISqlQuery <T> query)
{
var handlerType = typeof(ISqlQueryHandler <,>).MakeGenericType(query.GetType(), typeof(T));
var handler = _serviceProvider.GetRequiredService(handlerType);
// TODO We could make this waaay more efficient
var result = await(Task <T>) handlerType.GetMethod("Execute").Invoke(
handler,
new object[] { Transaction, query });
return(result);
}
public virtual async Task <T> ExecuteQuery <T>(ISqlQuery <T> query)
{
var handlerType = typeof(ISqlQueryHandler <,>).MakeGenericType(query.GetType(), typeof(T));
var handler = _serviceProvider.GetRequiredService(handlerType);
await _executeLock.WaitAsync();
try
{
var wrapperHandlerType = typeof(TaskQueryHandler <,>).MakeGenericType(query.GetType(), typeof(T));
var wrappedHandler = (TaskQueryHandler <T>)Activator.CreateInstance(
wrapperHandlerType,
handler);
return(await wrappedHandler.Execute(Transaction, query));
}
finally
{
_executeLock.Release();
}
}
public virtual async IAsyncEnumerable <T> ExecuteQuery <T>(ISqlQuery <IAsyncEnumerable <T> > query)
{
var handlerType = typeof(ISqlAsyncEnumerableQueryHandler <,>).MakeGenericType(query.GetType(), typeof(T));
var handler = _serviceProvider.GetRequiredService(handlerType);
await _executeLock.WaitAsync();
try
{
var wrapperHandlerType = typeof(AsyncEnumerableQueryHandler <,>).MakeGenericType(query.GetType(), typeof(T));
var wrappedHandler = (AsyncEnumerableQueryHandler <T>)Activator.CreateInstance(
wrapperHandlerType,
handler);
var result = wrappedHandler.Execute(Transaction, query);
await foreach (var row in result)
{
yield return(row);
}
}
finally
{
_executeLock.Release();
}
}