private void Initialize()
{
if (!_initialized)
{
_initialized = true;
int pageSize = ODataUri.GetPageSize();
if (pageSize > 0)
{
_restCount = (int?)ODataUri.Top ?? Int32.MaxValue;
ODataUri.Top = pageSize;
}
if (!(ODataUri.Path.LastSegment is OperationSegment))
{
ODataUri.OrderBy = OeSkipTokenParser.GetUniqueOrderBy(GetEntitySet(), ODataUri.OrderBy, ODataUri.Apply);
if (ODataUri.SkipToken == null)
{
SkipTokenNameValues = Array.Empty <OeSkipTokenNameValue>();
}
else
{
SkipTokenNameValues = OeSkipTokenParser.ParseSkipToken(EdmModel, ODataUri.OrderBy, ODataUri.SkipToken, out _restCount);
}
}
}
}
public OeQueryContext CreateQueryContext(ODataUri odataUri, int pageSize, bool navigationNextLink, OeMetadataLevel metadataLevel)
{
List <OeParseNavigationSegment> navigationSegments = null;
if (odataUri.Path.LastSegment is KeySegment ||
odataUri.Path.LastSegment is NavigationPropertySegment)
{
navigationSegments = new List <OeParseNavigationSegment>();
ODataPathSegment previousSegment = null;
foreach (ODataPathSegment segment in odataUri.Path)
{
if (segment is NavigationPropertySegment navigationSegment)
{
navigationSegments.Add(new OeParseNavigationSegment(navigationSegment, null));
}
else if (segment is KeySegment keySegment)
{
IEdmEntitySet previousEntitySet;
navigationSegment = null;
if (previousSegment is EntitySetSegment)
{
var previousEntitySetSegment = previousSegment as EntitySetSegment;
previousEntitySet = previousEntitySetSegment.EntitySet;
}
else if (previousSegment is NavigationPropertySegment)
{
navigationSegment = previousSegment as NavigationPropertySegment;
previousEntitySet = (IEdmEntitySet)navigationSegment.NavigationSource;
}
else
{
throw new InvalidOperationException("invalid segment");
}
FilterClause keyFilter = CreateFilterClause(previousEntitySet, keySegment.Keys);
navigationSegments.Add(new OeParseNavigationSegment(navigationSegment, keyFilter));
}
previousSegment = segment;
}
}
var entitySetSegment = (EntitySetSegment)odataUri.Path.FirstSegment;
if (pageSize > 0)
{
odataUri.Top = pageSize;
IEdmEntitySet resultEntitySet = OeParseNavigationSegment.GetEntitySet(navigationSegments) ?? entitySetSegment.EntitySet;
odataUri.OrderBy = OeSkipTokenParser.GetUniqueOrderBy(_edmModel, resultEntitySet, odataUri.OrderBy, odataUri.Apply);
}
Db.OeEntitySetAdapter entitySetAdapter = _edmModel.GetEntitySetAdapter(entitySetSegment.EntitySet);
bool isCountSegment = odataUri.Path.LastSegment is CountSegment;
return(new OeQueryContext(_edmModel, odataUri, navigationSegments, isCountSegment, pageSize, navigationNextLink, metadataLevel, entitySetAdapter));
}
public OeQueryContext CreateQueryContext(ODataUri odataUri, int pageSize, bool navigationNextLink, OeMetadataLevel metadataLevel)
{
IReadOnlyList <OeParseNavigationSegment> navigationSegments = OeParseNavigationSegment.GetNavigationSegments(odataUri.Path);
var entitySetSegment = (EntitySetSegment)odataUri.Path.FirstSegment;
if (pageSize > 0)
{
odataUri.Top = pageSize;
IEdmEntitySet resultEntitySet = OeParseNavigationSegment.GetEntitySet(navigationSegments) ?? entitySetSegment.EntitySet;
odataUri.OrderBy = OeSkipTokenParser.GetUniqueOrderBy(_edmModel, resultEntitySet, odataUri.OrderBy, odataUri.Apply);
}
Db.OeEntitySetAdapter entitySetAdapter = _edmModel.GetEntitySetAdapter(entitySetSegment.EntitySet);
bool isCountSegment = odataUri.Path.LastSegment is CountSegment;
return(new OeQueryContext(_edmModel, odataUri, navigationSegments, isCountSegment, pageSize, navigationNextLink, metadataLevel, entitySetAdapter));
}
