cell create api failed with string number

[Alex Xu]

When request as below:
curl -i 'http://cloudcontroller:8774/v2/04e2ab93c10a4c2dbef1c648d04567cc/os-cells' -X POST -H "Accept: application/json" -H "Content-Type: application/json" -H "User-Agent: python-novaclient" -H "X-Auth-Project-Id: admin" -H "X-Auth-Token: 016d26c590ab4a0b91de718d01d7a649" -d '{"cell": {"name": "abc", "rpc_port": "123"}}'

Get error as below:
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi Traceback (most recent call last):
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 950, in _process_stack
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi action_result = self.dispatch(meth, request, action_args)
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 1034, in dispatch
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi return method(req=request, **action_args)
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/api/openstack/compute/contrib/cells.py", line 360, in create
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi self._normalize_cell(cell)
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/api/openstack/compute/contrib/cells.py", line 340, in _normalize_cell
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi cell['transport_url'] = str(transport_url)
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/transport.py", line 318, in __str__
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi netloc += ':%d' % port
2014-11-06 10:41:37.099 TRACE nova.api.openstack.wsgi TypeError: %d format: a number is required, not unicode

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/132941

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/132941
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=09b0f2e622eaa2ee02c2a7ddead6e79f94d9c06c
Submitter: Jenkins
Branch: master

commit 09b0f2e622eaa2ee02c2a7ddead6e79f94d9c06c
Author: He Jie Xu <email address hidden>
Date: Thu Nov 6 10:59:08 2014 +0800

    Fix the cell API with string rpc_port failed

    When cell create/update accept rpc_port as string, it will
    return 500. This patch add code to covert the string as integer.

    Change-Id: I8ace46731ac02f810b978c54843b6e137c9882be
    Closes-Bug: #1389933