private static SearchSCIMRepresentationsResponse EvaluateOrderByMetadata(
SCIMDbContext dbContext,
SCIMAttributeExpression attrExpression,
IQueryable <SCIMRepresentation> representations,
SearchSCIMRepresentationOrders order,
int startIndex,
int count,
IEnumerable <SCIMAttributeExpression> includedAttributes,
IEnumerable <SCIMAttributeExpression> excludedAttributes)
{
int total = representations.Count();
var fullPath = attrExpression.GetFullPath();
if (!ParserConstants.MappingStandardAttributePathToProperty.ContainsKey(fullPath))
{
return(null);
}
var representationParameter = Expression.Parameter(typeof(SCIMRepresentation), "rp");
var propertyName = ParserConstants.MappingStandardAttributePathToProperty[fullPath];
var property = Expression.Property(representationParameter, ParserConstants.MappingStandardAttributePathToProperty[fullPath]);
var propertyType = typeof(SCIMRepresentation).GetProperty(propertyName).PropertyType;
var orderBy = GetOrderByType(order, propertyType);
var innerLambda = Expression.Lambda(property, new ParameterExpression[] { representationParameter });
var orderExpr = Expression.Call(orderBy, Expression.Constant(representations), innerLambda);
var finalSelectArg = Expression.Parameter(typeof(IQueryable <SCIMRepresentation>), "f");
var finalOrderRequestBody = Expression.Lambda(orderExpr, new ParameterExpression[] { finalSelectArg });
var result = (IQueryable <SCIMRepresentation>)finalOrderRequestBody.Compile().DynamicInvoke(representations);
var content = result.Skip(startIndex <= 1 ? 0 : startIndex - 1).Take(count);
return(BuildResult(content, dbContext, includedAttributes, excludedAttributes, total));
}
private static async Task <SearchSCIMRepresentationsResponse> EvaluateOrderByMetadata(
SCIMAttributeExpression attrExpression,
IQueryable <SCIMRepresentationModel> representations,
SearchSCIMRepresentationOrders order,
int startIndex,
int count,
CancellationToken cancellationToken)
{
var fullPath = attrExpression.GetFullPath();
if (!MAPPING_PATH_TO_PROPERTYNAMES.ContainsKey(fullPath))
{
return(null);
}
var representationParameter = Expression.Parameter(typeof(SCIMRepresentationModel), "rp");
var propertyName = MAPPING_PATH_TO_PROPERTYNAMES[fullPath];
var property = Expression.Property(representationParameter, MAPPING_PATH_TO_PROPERTYNAMES[fullPath]);
var propertyType = typeof(SCIMRepresentationModel).GetProperty(propertyName).PropertyType;
var orderBy = GetOrderByType(order, propertyType);
var innerLambda = Expression.Lambda(property, new ParameterExpression[] { representationParameter });
var orderExpr = Expression.Call(orderBy, Expression.Constant(representations), innerLambda);
var finalSelectArg = Expression.Parameter(typeof(IQueryable <SCIMRepresentationModel>), "f");
var finalOrderRequestBody = Expression.Lambda(orderExpr, new ParameterExpression[] { finalSelectArg });
var result = (IOrderedEnumerable <SCIMRepresentationModel>)finalOrderRequestBody.Compile().DynamicInvoke(representations);
var content = result.Skip(startIndex).Take(count).ToList();
var total = await representations.CountAsync(cancellationToken);
return(new SearchSCIMRepresentationsResponse(total, content.Select(r => r.ToDomain())));
}
private static MemberExpression GetCommonAttribute(SCIMAttributeExpression scimAttributeExpression, ParameterExpression parameterExpression)
{
var fullPath = scimAttributeExpression.GetFullPath();
if (!MAPPING_PATH_TO_PROPERTYNAMES.ContainsKey(fullPath))
{
return(null);
}
return(Expression.Property(parameterExpression, MAPPING_PATH_TO_PROPERTYNAMES[fullPath]));
}
public static LambdaExpression EvaluateOrderByMetadata(SCIMAttributeExpression attrExpression, IQueryable <SCIMRepresentation> representations, SearchSCIMRepresentationOrders order)
{
var fullPath = attrExpression.GetFullPath();
if (!MAPPING_PATH_TO_PROPERTYNAMES.ContainsKey(fullPath))
{
return(null);
}
var representationParameter = Expression.Parameter(typeof(SCIMRepresentation), "rp");
var propertyName = MAPPING_PATH_TO_PROPERTYNAMES[fullPath];
var property = Expression.Property(representationParameter, MAPPING_PATH_TO_PROPERTYNAMES[fullPath]);
var propertyType = typeof(SCIMRepresentation).GetProperty(propertyName).PropertyType;
var orderBy = GetOrderByType(order, propertyType);
var innerLambda = Expression.Lambda(property, new ParameterExpression[] { representationParameter });
var orderExpr = Expression.Call(orderBy, Expression.Constant(representations), innerLambda);
var finalSelectArg = Expression.Parameter(typeof(IQueryable <SCIMRepresentation>), "f");
var finalOrderRequestBody = Expression.Lambda(orderExpr, new ParameterExpression[] { finalSelectArg });
return(finalOrderRequestBody);
}
private static bool IsCommonAttribute(SCIMAttributeExpression scimAttributeExpression)
{
return(MAPPING_PATH_TO_PROPERTYNAMES.ContainsKey(scimAttributeExpression.GetFullPath()));
}
