[MESOS-3312] Factor out JSON to repeated protobuf conversion

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.25.0
• Labels: mesosphere
• Sprint: Mesosphere Sprint 17, Mesosphere Sprint 18, Mesosphere Sprint 19
• Story Points: 2
• Assignee: Alex R
• Reporter: Alex R
• Shepherd: Michael Park
• Created: 26/Aug/15 02:37
• Updated: 26/Nov/18 12:21
• Resolved: 26/Nov/18 12:21

Description

In general, we have the collection of protobuf messages as another protobuf message, which makes JSON -> protobuf conversion straightforward. This is not always the case, for example, Resources class is not a protobuf, though protobuf-convertible.

To facilitate conversions like JSON -> Resources and avoid writing code for each particular case, we propose to introduce JSON::Array -> repeated protobuf conversion. With this in place, JSON::Array -> Resources boils down to JSON::Array -> repeated Resource -> (extra c-tor call) -> Resources.

Issue Links

• blocks: MESOS-2467 Allow --resources flag to take JSON.