private IQueryable GetQuery()
{
ODataPath path = this.GetPath();
RestierQueryBuilder builder = new RestierQueryBuilder(this.Api, path);
IQueryable queryable = builder.BuildQuery();
this.shouldReturnCount = builder.IsCountPathSegmentPresent;
this.shouldWriteRawValue = builder.IsValuePathSegmentPresent;
if (queryable == null)
{
throw new HttpResponseException(
this.Request.CreateErrorResponse(
HttpStatusCode.NotFound,
Resources.ResourceNotFound));
}
if (this.shouldWriteRawValue)
{
// Query options don't apply to $value.
return(queryable);
}
HttpRequestMessageProperties properties = this.Request.ODataProperties();
ODataQueryContext queryContext =
new ODataQueryContext(properties.Model, queryable.ElementType, path);
ODataQueryOptions queryOptions = new ODataQueryOptions(queryContext, this.Request);
// TODO GitHubIssue#41 : Ensure stable ordering for query
ODataQuerySettings settings = Api.Context.GetApiService <ODataQuerySettings>();
if (this.shouldReturnCount)
{
// Query options other than $filter and $search don't apply to $count.
queryable = queryOptions.ApplyTo(
queryable, settings, AllowedQueryOptions.All ^ AllowedQueryOptions.Filter);
return(queryable);
}
if (queryOptions.Count != null)
{
RestierQueryExecutorOptions queryExecutorOptions =
Api.Context.GetApiService <RestierQueryExecutorOptions>();
queryExecutorOptions.IncludeTotalCount = queryOptions.Count.Value;
queryExecutorOptions.SetTotalCount = value => properties.TotalCount = value;
}
// Validate query before apply, and query setting like MaxExpansionDepth can be customized here
ODataValidationSettings validationSettings = Api.Context.GetApiService <ODataValidationSettings>();
queryOptions.Validate(validationSettings);
// Entity count can NOT be evaluated at this point of time because the source
// expression is just a placeholder to be replaced by the expression sourcer.
queryable = queryOptions.ApplyTo(queryable, settings, AllowedQueryOptions.Count);
return(queryable);
}
private IQueryable ApplyQueryOptions(
IQueryable queryable, ODataPath path, bool applyCount, out ETag etag)
{
etag = null;
if (this.shouldWriteRawValue)
{
// Query options don't apply to $value.
return(queryable);
}
HttpRequestMessageProperties properties = this.Request.ODataProperties();
var model = Api.GetModelAsync().Result;
ODataQueryContext queryContext =
new ODataQueryContext(model, queryable.ElementType, path);
ODataQueryOptions queryOptions = new ODataQueryOptions(queryContext, this.Request);
// Get etag for query request
if (queryOptions.IfMatch != null)
{
etag = queryOptions.IfMatch;
}
else if (queryOptions.IfNoneMatch != null)
{
etag = queryOptions.IfNoneMatch;
}
// TODO GitHubIssue#41 : Ensure stable ordering for query
ODataQuerySettings settings = Api.GetApiService <ODataQuerySettings>();
if (this.shouldReturnCount)
{
// Query options other than $filter and $search don't apply to $count.
queryable = queryOptions.ApplyTo(
queryable, settings, AllowedQueryOptions.All ^ AllowedQueryOptions.Filter);
return(queryable);
}
if (queryOptions.Count != null && !applyCount)
{
RestierQueryExecutorOptions queryExecutorOptions =
Api.GetApiService <RestierQueryExecutorOptions>();
queryExecutorOptions.IncludeTotalCount = queryOptions.Count.Value;
queryExecutorOptions.SetTotalCount = value => properties.TotalCount = value;
}
// Validate query before apply, and query setting like MaxExpansionDepth can be customized here
ODataValidationSettings validationSettings = Api.GetApiService <ODataValidationSettings>();
queryOptions.Validate(validationSettings);
// Entity count can NOT be evaluated at this point of time because the source
// expression is just a placeholder to be replaced by the expression sourcer.
if (!applyCount)
{
queryable = queryOptions.ApplyTo(queryable, settings, AllowedQueryOptions.Count);
}
else
{
queryable = queryOptions.ApplyTo(queryable, settings);
}
return(queryable);
}
