tree cd2861d1acf386de01aeaa19866adfb8759eced0
parent bacb216228c45ca715163f4c81717b1af39889ab
author Nan Zhou <nanzhoumails@gmail.com> 1649103040 -0700
committer Nan Zhou <nanzhoumails@gmail.com> 1649691721 +0000

query parameter: add a way to delegate certain parameter

The generic query parameter handlers might not be performant, e.g.,
Expand in the sensor collections. This change adds a way to delegate
query parameter processsing to redfish-core codes:

1. introduced a separate struct in the setUpRedfishRoute function, with
which redfish-core codes can easily set delegation for each parameter;
for example, the children patch of this PR will implement an efficient
handler for sensor collection Expand, top, and skip.
2. introduced a separate Redfish route for delegation; this routes takes
the struct described above and changes the query object so that query
parameters are delegated.
3. in order to avoid copying Query objects and run delegation check
twice, the |setUpRedfishRouteWithDelegation| function sets |delegated|
so that callers can directly use it to determinte if delegation is
needed, and what delegated Queries are

Tested:
1. added unit tests
2. the default redfish route is still working correctly

Signed-off-by: Nan Zhou <nanzhoumails@gmail.com>
Change-Id: I77597ad7e8b40ac179d86dc9be1a35767cc61284