[JAMES-930] Refactor socket services to use composition instead of inheritance (AbstractProtocolServer to become a component)

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0-M1
• Component/s: IMAPServer, NNTPServer & Repository (removed), POP3Server, Remote Manager, SMTPServer
• Assignee: Norman Maurer
• Reporter: Stefano Bagnara
• Created: 14/Oct/09 11:07
• Updated: 12/Jan/10 19:52
• Resolved: 12/Jan/10 19:52

Description

We should move from inheritance (done in JAMES-516) to composition for protocols and sockets.

avalon-socket-library should be able to create a new socket service for a given protocol.
socket <-> protocol should "talk" via service interfaces and no build time link should exists.

This way we'll be able to introduce alternative socket handling libraries (like a MINA one). This is possible now that we moved to a line based push approach for the protocol: JAMES-750