[infinispan-issues] [JBoss JIRA] Created: (ISPN-479) Reduce use of maps in Hot Rod to increase performance

[Galder Zamarreno (JIRA)]

Reduce use of maps in Hot Rod to increase performance
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                 Key: ISPN-479
                 URL: https://jira.jboss.org/browse/ISPN-479
             Project: Infinispan
          Issue Type: Task
          Components: Cache Server
    Affects Versions: 4.1.0.BETA2
            Reporter: Galder Zamarreno
            Assignee: Galder Zamarreno
             Fix For: 4.1.0.CR1


There's no need for a map to resolve operation codes and flags, simply use a switch. 

1.7% - 95,395 ms - 371,912 inv. org.infinispan.server.hotrod.RequestResolver$.toRequest (line\: 37)
...
1.3% - 71,870 ms - 262,761 inv. scala.Enumeration.apply (line\: 42)

Similar thing for the version specific decoder but in this case, convert Decoder10 into a singleton object to get even more performance since its stateless and you avoid map lookups:

1.9% - 110 s - 404,990 inv. org.infinispan.server.hotrod.HotRodDecoder.getDecoder (line\: 54)

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