[MESOS-9913] Use built-in protobuf JSON mapping utilities in favor of reflection for (de)serialization.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: json api
• Labels: foundations
• Assignee: Unassigned
• Reporter: Meng Zhu
• Created: 29/Jul/19 19:04
• Updated: 29/Jul/19 19:55
• Resolved: 29/Jul/19 19:55

Description

Currently, we use protobuf reflection APIs to (de)serialize to/from JSON. This means a lot of custom code. There are places where we forgot to customize (e.g. for Map, MESOS-9901). Also, there is a performance regression in protobuf reflection if we upgrade our protobuf library to 3.7.x (see MESOS-9896 and related tickets).

Thus it would beneficial to make use of the built-in json utilises to do the mapping.

Issue Links

• duplicates: MESOS-9896 Consider using protobuf provided json conversion facilities rather than custom ones.