[STORM-2864] Minor optimisation about trident kafka state

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0, 1.2.0
• Fix Version/s: 2.0.0, 1.2.0
• Component/s: storm-kafka-client
• Labels: pull-request-available
• Assignee: OuYang Liang
• Reporter: OuYang Liang
• Created: 22/Dec/17 01:39
• Updated: 22/Dec/17 17:48
• Resolved: 22/Dec/17 17:47

Description

Make TridentKafkaState a template class to eliminate warning messages in eclipse, and a minor optimisation that use StringBuilder.append instead of string concat operation.

Issue Links

• links to: GitHub Pull Request #2476