protected IActionResult OData <T>(OeAsyncEnumerator asyncEnumerator)
{
var entityAsyncEnumerator = new OeEntityAsyncEnumerator <T>(_queryContext.EntryFactory, asyncEnumerator, _queryContext.SkipTokenParser);
return(new ODataResult <T>(_edmModel, _queryContext.ODataUri, entityAsyncEnumerator)
{
Count = asyncEnumerator.Count,
PageSize = _queryContext.PageSize
});
}
public IAsyncEnumerable <T> ExecuteReader <T>(IQueryable source = null, bool navigationNextLink = false, int?maxPageSize = null)
{
OeAsyncEnumerator asyncEnumerator = GetAsyncEnumerator(source, navigationNextLink, maxPageSize);
if (asyncEnumerator is OeAsyncEnumeratorAdapter || OeExpressionHelper.IsPrimitiveType(typeof(T)))
{
return(new OeAsyncEnumeratorAdapter <T>(asyncEnumerator));
}
return(new OeEntityAsyncEnumeratorAdapter <T>(asyncEnumerator, _queryContext));
}
protected ODataResult <T> OData <T>(OeAsyncEnumerator asyncEnumerator)
{
var entityAsyncEnumerator = new OeEntityAsyncEnumerator <T>(asyncEnumerator, _queryContext.EntryFactory, _queryContext);
HttpContext.Response.RegisterForDispose(entityAsyncEnumerator);
return(new ODataResult <T>(_edmModel, _queryContext.ODataUri, entityAsyncEnumerator)
{
Count = asyncEnumerator.Count,
PageSize = _queryContext.PageSize
});
}
public async Task <T?> ExecuteScalar <T>(IQueryable source = null) where T : struct
{
OeAsyncEnumerator asyncEnumerator = GetAsyncEnumerator(source);
if (await asyncEnumerator.MoveNextAsync() && asyncEnumerator.Current != null)
{
return((T)asyncEnumerator.Current);
}
_httpContext.Response.ContentType = null;
return(null);
}
protected IActionResult OData(OeAsyncEnumerator asyncEnumerator)
{
if (asyncEnumerator is OeScalarAsyncEnumeratorAdapter)
{
return(ODataScalar(asyncEnumerator).GetAwaiter().GetResult());
}
Type clrType = _edmModel.GetClrType(_queryContext.EntryFactory.EntityType);
Func <OeAsyncEnumerator, IActionResult> odataFunc = OData <Object>;
return((IActionResult)odataFunc.Method.GetGenericMethodDefinition().MakeGenericMethod(clrType).Invoke(this, new Object[] { asyncEnumerator }));
}
private OeAsyncEnumerator ExecutePost(IEdmModel refModel, ODataUri odataUri, OeRequestHeaders headers, CancellationToken cancellationToken, Stream requestStream)
{
_odataUri = odataUri;
var parser = new OePostParser(refModel);
OeAsyncEnumerator asyncEnumerator = parser.GetAsyncEnumerator(odataUri, requestStream, headers, _dataContext, out bool isScalar);
if (!isScalar)
{
_queryContext = parser.CreateQueryContext(odataUri, headers.MetadataLevel);
}
return(asyncEnumerator);
}
private OeAsyncEnumerator Execute(ODataUri odataUri, Stream requestStream, OeRequestHeaders headers, CancellationToken cancellationToken)
{
Object dataContext = _dataAdapter.CreateDataContext();
var parser = new OePostParser(_dataAdapter, _edmModel);
OeAsyncEnumerator asyncEnumerator = parser.GetAsyncEnumerator(odataUri, requestStream, headers, dataContext, out Type returnClrType);
if (returnClrType != null && !(returnClrType.IsPrimitive || returnClrType == typeof(String)))
{
_queryContext = parser.CreateQueryContext(odataUri, headers.MetadataLevel, returnClrType);
}
return(asyncEnumerator);
}
protected async Task <IActionResult> ODataScalar(OeAsyncEnumerator asyncEnumerator)
{
if (await asyncEnumerator.MoveNextAsync() && asyncEnumerator.Current != null)
{
return new ContentResult()
{
Content = asyncEnumerator.Current.ToString(),
ContentType = OeRequestHeaders.TextDefault.ContentType
}
}
;
base.HttpContext.Response.ContentType = null;
return(new EmptyResult());
}
}
