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From Will Chan <>
Subject RE: [VOTE] Enforcing UUID string in API query
Date Thu, 27 Dec 2012 20:45:54 GMT

You will end up breaking anyone that has written any scripts/plugins/apps on top of pre 3.x
 CS.  Since UUID was introduced in 3.0, you should only accept the following:

- All first class objects created before 3.0 should accept an normal internal ID.
- All first class objects created after 3.0 should accept UUID only.  Any attempts to query
these objects using the internal ID should result in "object not found".

By forcing everything to take in a UUID means you will have to force many of CS's integration
on top of pre 3.0 CS to re-map their internal IDs.  This is just not practical.


> -----Original Message-----
> From: Rohit Yadav []
> Sent: Thursday, December 27, 2012 12:11 PM
> To:
> Cc:
> Subject: [VOTE] Enforcing UUID string in API query
> Hi,
> I'm asking for the community to vote if they want to enforce UUID string to
> be used in parameters while querying an API. This would break any client or
> script that uses internal ID. AFAIK api response (json or xml, since 3.x for
> sure) always have had UUIDs so if any client/script that uses apis to query
> entities and base their further operations using ids from the response(s)
> should be fine.
> You may vote by:
> +1 Agree
> 0  No opinion
> -1 Disagree
> Some context and description:
> CloudStack uses internal IDs which are long ints and they have a mapping
> between this ID and the external ID or UUID which is a random string of
> characters.
> There are DAO classes which provides a mechanism to query a particular
> table(s) and do other operations. There are VO objects which can hold
> content of a row. In most VO objects a method getId() would return a long
> int number which is the internal ID of that entity and they would have a
> getUuid() which returns a unique random string of chars.
> At present an API can be queried with both ids, for example for param
> domainid using uuid in 1 and using id in 2:
> 1.
> http://localhost:8080/client?command=listResourceLimits&domainid=866
> 4e04a-9931-4765-b3456e6888d0fa1d
> 2. http://localhost:8080/client?command=listResourceLimits&domainid=1
> For querying using id, the caller should have idea of the id for that entity
> and which is only possible if they have access to CloudStack's database.
> There is no other way of knowing an entity's id, only uuids are sent as ids in
> the response.
> Regards.

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