[SOLR-12790] Making sub-classes LBHttpSolrClient possible to use different logics for picking server

• Type: Improvement
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 5.0
• Fix Version/s: 8.0
• Component/s: SolrJ
• Labels: ready-to-commit
• Assignee: Cao Manh Dat
• Reporter: Aaron LaBella
• Created: 20/Sep/18 16:45
• Updated: 08/Jun/19 15:00
• Resolved: 09/Oct/18 02:51

Description

moved ServerWrapper logic in LBHttpSolrClient.request(...) to a method to allow subclasses to override.  expose other fields as protected.  This allows sub-classes to apply different logic other than round-robin, when using the LBHttpSolrClient class.  In my case, we wish to use an algorithm that only uses the first / primary server unless it is unavailable, and then it uses the secondary server(s).

 

Can someone please commit this as soon as possible.  I don't necessarily need it to be back-ported, having in 7.4.1 would suffice.

Thanks!