private static FilterClause CreateFilterClause(IEdmEntitySet entitySet, IEnumerable <KeyValuePair <String, Object> > keys)
{
ResourceRangeVariableReferenceNode refNode = OeEdmClrHelper.CreateRangeVariableReferenceNode(entitySet);
var entityType = (IEdmEntityType)refNode.RangeVariable.TypeReference.Definition;
var propertyValues = new List <KeyValuePair <IEdmStructuralProperty, Object> >();
foreach (KeyValuePair <String, Object> keyValue in keys)
{
var property = (IEdmStructuralProperty)entityType.FindProperty(keyValue.Key);
propertyValues.Add(new KeyValuePair <IEdmStructuralProperty, Object>(property, keyValue.Value));
}
return(new FilterClause(OeGetParser.CreateFilterExpression(refNode, propertyValues), refNode.RangeVariable));
}
private static List <SingleValuePropertyAccessNode> GetOrderByProperties(IEdmModel edmModel, IEdmEntityType edmType, OrderByClause orderByClause, ApplyClause applyClause)
{
var keys = new List <SingleValuePropertyAccessNode>();
GroupByTransformationNode groupByNode;
if (applyClause != null && (groupByNode = applyClause.Transformations.OfType <GroupByTransformationNode>().SingleOrDefault()) != null)
{
foreach (GroupByPropertyNode node in groupByNode.GroupingProperties)
{
if (node.Expression == null)
{
keys.AddRange(node.ChildTransformations.Select(n => (SingleValuePropertyAccessNode)n.Expression));
}
else
{
keys.Add((SingleValuePropertyAccessNode)node.Expression);
}
}
}
else
{
IEdmEntitySet entitySet = OeEdmClrHelper.GetEntitySet(edmModel, edmType);
ResourceRangeVariableReferenceNode source = OeGetParser.CreateRangeVariableReferenceNode(entitySet);
foreach (IEdmStructuralProperty key in edmType.Key())
{
keys.Add(new SingleValuePropertyAccessNode(source, key));
}
}
if (orderByClause == null)
{
return(keys);
}
for (; orderByClause != null; orderByClause = orderByClause.ThenBy)
{
var propertyNode = (SingleValuePropertyAccessNode)orderByClause.Expression;
int i = keys.FindIndex(p => p.Property == propertyNode.Property);
if (i >= 0)
{
keys.RemoveAt(i);
}
}
return(keys);
}
internal OeQueryContext(IEdmModel edmModel, ODataUri odataUri,
IEdmEntitySet entitySet, IReadOnlyList <OeParseNavigationSegment> parseNavigationSegments,
bool isCountSegment, int pageSize, bool navigationNextLink, bool isDatabaseNullHighestValue,
OeMetadataLevel metadataLevel, ref Db.OeEntitySetAdapter entitySetAdapter)
{
EntitySetAdapter = entitySetAdapter;
EdmModel = edmModel;
ODataUri = odataUri;
EntitySet = entitySet;
ParseNavigationSegments = parseNavigationSegments;
IsCountSegment = isCountSegment;
PageSize = pageSize;
NavigationNextLink = navigationNextLink;
MetadataLevel = metadataLevel;
if (pageSize > 0 || (odataUri.OrderBy != null && odataUri.Skip != null && odataUri.Top != null))
{
IEdmEntityType edmEntityType = OeGetParser.GetEntityType(odataUri.Path, parseNavigationSegments);
SkipTokenParser = new OeSkipTokenParser(edmModel, edmEntityType, isDatabaseNullHighestValue, odataUri.OrderBy);
}
}
public async Task ExecuteQueryAsync(ODataUri odataUri, OeRequestHeaders headers, Stream responseStream, CancellationToken cancellationToken)
{
var parser = new Parsers.OeGetParser(EdmModel.GetEdmModel(odataUri.Path), _serviceProvider, ModelBoundProvider);
await parser.ExecuteAsync(odataUri, headers, responseStream, cancellationToken).ConfigureAwait(false);
}