tree 2b0618b7cfa94ead72eb0d3d02338cdfd7cc03d3
parent 550a6bf85f81c1725b6c320a5ee419335cff2cf6
author Ed Tanous <edtanous@google.com> 1649179616 -0700
committer Ed Tanous <ed@tanous.net> 1652198905 +0000

Implement $top and $skip

$top and $skip are parameters for controlling the responses of
collections, to limit their size, per the Redfish specification section
7.4.

$skip=integer "Applies to resource collections. Returns a subset of the
members in a resource collection, or an empty set of members if the
$skip value is greater than or equal to the member count. This paging
query parameter defines the number of members in the resource collection
to skip."

$top=<integer> "Applies to resource collections. Defines the number of
members to show in the response.  Minimum value is 0 , though a value of
0 returns an empty set of members."

This commit implements them within the resource query.

Tested:
curl --insecure --user root:0penBmc  https://localhost:18080/redfish/v1/Registries\?\$top\=1

Returns 1 value.  Walking through values of 1-5 (there are 4 registries
currently) returns the appropriate sizes of collection (with 5 returning
4 entries).

curl --insecure --user root:0penBmc https://localhost:18080/redfish/v1/Registries\?\$skip\=0

Returns the collection.  $skip values of 0-5 return descending number of
results.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ied8a8f8338f119173509fb4b7ba2bd4a6c49cae8