[MESOS-2172] Refactor fetcher namespace into a class

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.22.0
• Component/s: agent, fetcher
• Target Version/s: 0.22.0
• Epic Link: Fetcher Cache
• Sprint: Mesosphere Q4 Sprint 3 - 12/7
• Story Points: 0.1
• Assignee: Bernd Mathiske
• Reporter: Bernd Mathiske
• Shepherd: Benjamin Hindman
• Created: 04/Dec/14 01:58
• Updated: 30/Dec/14 14:16
• Resolved: 30/Dec/14 14:16

Description

Fetching will have state once we introduce caching. In preparation for that, let's refactor the fetcher routines into a class for a singleton fetcher object per slave that will be able to hold the cache state.