Enable JSON support for N1KV REST calls

https://blueprints.launchpad.net/neutron/+spec/cisco-n1kv-json-support

Need to enable Cisco N1KV plugin to accept REST API responses in JSON.

Problem description

Currently, Cisco N1KV Neutron plugin and VSM (controller) communicate using REST APIs. The VSM is capable of returning responses in XML and JSON. However, the plugin handles only XML responses.

Proposed change

The proposed change is to use the Requests library to support handling of REST API responses in JSON. The Requests library will replace the httplib2 library currently being used by the plugin.

Alternatives

None

Data model impact

None

REST API impact

None

Security impact

None

Notifications impact

None

Other end user impact

None

Performance Impact

None

Other deployer impact

requests library version >= 1.1 (as per neutron requirements.txt)

Developer impact

None

Implementation

Assignee(s)

Primary assignee:
sopatwar
Other contributors:
abhraut

Work Items

  • Replace httplib2 library used in the plugin with Requests library.
  • Modify all the methods in n1kvclient to use the Requests library.
  • Replace the current XML parsing logic in the response handlers for policy profiles to handle JSON responses.

Dependencies

None

Testing

Currently, unit tests include coverage of XML responses. The test code will be modified to handle JSON responses.

Documentation Impact

None

References

None