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From "Alin Vasile (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1137) The values for the Via header are created by httpclient-cache for each cached and backend request
Date Thu, 13 Oct 2011 13:50:12 GMT
The values for the Via header are created by httpclient-cache for each cached and backend request
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                 Key: HTTPCLIENT-1137
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1137
             Project: HttpComponents HttpClient
          Issue Type: Improvement
          Components: Cache
    Affects Versions: 4.1.2
            Reporter: Alin Vasile
            Priority: Trivial


The Via header that gets generated and inserted by the caching layer is adobe repeatable in
the HTTP conversation, even if the constructed string is constant for each protocol version
that is involved.

The proposed patch constructs a map of generated values held in memory with the associated
ProtocolVersion as a key and uses read/write locks to access the data. This  solution minimizes
the time to generate such a value from several milliseconds to 40-50 microseconds.

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