[FLUME-2333] HTTP source handler doesn't allow for responses

• Type: Improvement
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Fix Version/s: 1.8.1
• Assignee: Jeremy Karlson
• Reporter: Jeremy Karlson
• Created: 27/Feb/14 02:52
• Updated: 12/Sep/17 13:24

Description

Existing HTTP source handlers recieve events via a HTTPServletRequest. This works, but because the handler doesn't have access to the HTTPServletResponse, there is no ability to return a response. This makes it unsuitable for some sort of protocol that relies on bidirectional communication.

My solution: In addition to the existing HTTPSource interface, I've added a BidirectionalHTTPSource interface that is provided the servlet response as a parameter. I've made some changes in the HTTP source allow for both types to co-exist, and my changes shouldn't affect anyone who is already using the existing interface.

Also includes minor documentation updates to reflect this.

Review: https://reviews.apache.org/r/18555/