max_count and min_count should be converted into the type: int

[Ivan-Zhu]

when create multiple servers, in nova v3 api, the min_count and min_count should be converted into the type: int. otherwise some problem will arise.

the tempest v3 tests log:
2013-11-25 16:04:21,000 Request: POST http://9.115.126.211:8774/v3/servers
2013-11-25 16:04:21,001 Request Headers: {'Content-Type': 'application/xml', 'Accept': 'application/xml', 'X-Auth-Token': '<Token omitted>'}
2013-11-25 16:04:21,001 Request Body: <?xml version="1.0" encoding="UTF-8"?>
<server xmlns="http://docs.openstack.org/compute/api/v1.1" name="multiple-create-test-tempest-917155335" os-multiple-create:max_count="2" os-multiple-create:return_reservation_id="True" xmlns:os-multiple-create="http://docs.openstack.org/compute/ext/multiplecreate/api/v3" image_ref="08850447-5bfc-49ab-a728-92c056829e99" flavor_ref="42" os-multiple-create:min_count="1"/>
2013-11-25 16:04:21,684 Response Status: 400
2013-11-25 16:04:21,684 Nova request id: req-3ad76a84-dfd1-4d5d-8bd9-8a5879b16b6f
2013-11-25 16:04:21,684 Response Headers: {'content-length': '203', 'date': 'Mon, 25 Nov 2013 08:04:21 GMT', 'content-type': 'application/xml; charset=UTF-8', 'connection': 'close'}
2013-11-25 16:04:21,684 Response Body: <badRequest code="400" xmlns="http://docs.openstack.org/compute/api/v1.1"><message>The server could not comply with the request since it is either malformed or otherwise incorrect.</message></badRequest>

nova v3 api log:
2013-11-25 16:04:21.679 ERROR nova.api.openstack.wsgi [req-3ad76a84-dfd1-4d5d-8bd9-8a5879b16b6f demo demo] Exception handling resource: coercing to Unicode: need string or buffer, long found
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi Traceback (most recent call last):
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 999, in _process_stack
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi action_result = self.dispatch(meth, request, action_args)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/api/openstack/wsgi.py", line 1080, in dispatch
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi return method(req=request, **action_args)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/api/openstack/compute/plugins/v3/servers.py", line 773, in create
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi **create_kwargs)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/hooks.py", line 105, in inner
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi rv = f(*args, **kwargs)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/compute/api.py", line 1234, in create
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi legacy_bdm=legacy_bdm)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/compute/api.py", line 883, in _create_instance
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi block_device_mapping)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/compute/api.py", line 759, in _provision_instances
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi context, instance_type, min_count, max_count)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/compute/api.py", line 344, in _check_num_instances_quota
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi cores=req_cores, ram=req_ram)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/quota.py", line 1272, in reserve
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi user_id=user_id)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/quota.py", line 500, in reserve
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi project_id=project_id, user_id=user_id)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/db/api.py", line 1097, in quota_reserve
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi project_id=project_id, user_id=user_id)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/db/sqlalchemy/api.py", line 130, in wrapper
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi return f(*args, **kwargs)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/db/sqlalchemy/api.py", line 168, in wrapped
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi return f(*args, **kwargs)
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi File "/opt/stack/nova/nova/db/sqlalchemy/api.py", line 3186, in quota_reserve
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi project_usages[res]['total'] or
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi TypeError: coercing to Unicode: need string or buffer, long found
2013-11-25 16:04:21.679 TRACE nova.api.openstack.wsgi
2013-11-25 16:04:21.682 DEBUG nova.api.openstack.wsgi [req-3ad76a84-dfd1-4d5d-8bd9-8a5879b16b6f demo demo] Returning 400 to user: The server could not comply with the request since it is either malformed or otherwise incorrect. from (pid=10829) __call__ /opt/stack/nova/nova/api/openstack/wsgi.py:1225
2013-11-25 16:04:21.683 INFO nova.osapi_compute.wsgi.server [req-3ad76a84-dfd1-4d5d-8bd9-8a5879b16b6f demo demo] 9.115.126.211 "POST /v3/servers HTTP/1.1" status: 400 len: 418 time: 0.6807010

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/58220

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/58220
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=9b7d87181ba2406496c4b977a1b24c8173080ad6
Submitter: Jenkins
Branch: master

commit 9b7d87181ba2406496c4b977a1b24c8173080ad6
Author: ivan-zhu <email address hidden>
Date: Mon Nov 25 16:28:26 2013 +0800

    convert min_count and max_count to type int in nova v3 api

    this converts min_count and max_count to type:int in nova
    v3 api.
    If the string type hasn't been converted, in the method
    _check_num_instances_quota of nova/compute/api.py, something
    like req_ram = '2'*128 will occur. That's why the issue in
    bug 1254616 arise.

    Change-Id: I567b249e7a30681980ed760d5d09aad4c8e603b9
    Closes-bug: 1254616