Undesired rounding float parameter

[Sergey Kraynev]

I try to preview stack with template [1] with couple changes:

 - I added Cooldown parameter with Number type and Default float value 8.9 (it should be not unicode and not string).
 - I added Cooldown property to WebServerGroup resource, that reference on parameter Cooldown.

When I try to create this stack I will get stack, where resource WebServerGroup has property cooldown equal to 8.

The problem is here [2]. It happens because Default value has float type, instead of string (when we pass this parameter through CLI). For avoiding this problem will be better to use str_to_num method of Schema class.

[1] https://github.com/openstack/heat-templates/blob/master/cfn/F17/AutoScalingMultiAZSample.yaml
[2] https://github.com/openstack/heat/blob/master/heat/engine/parameters.py#L281

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/95761

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/95761
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=5984910bdf927fd1242f49007f01bf09f0f8ed78
Submitter: Jenkins
Branch: master

commit 5984910bdf927fd1242f49007f01bf09f0f8ed78
Author: Sergey Kraynev <email address hidden>
Date: Tue May 27 09:02:19 2014 -0400

    Use str_to_num for Number parameter

    Current implemenation method 'value' convert all input parameters. But
    should ignore type Number, because it may round value with float type.
    Also this logic is already implemented in str_to_num method. This patch
    forces NumberParam class to use str_to_num in value method.

    Closes-Bug: #1323649

    Change-Id: I7333cb4d6641d886cffb4812ceaa58db8d86c135