[jira] [Created] (ZOOKEEPER-3457) Code optimization in QuorumCnxManager

["tom.long (JIRA)" <ji...@apache.org>]

tom.long created ZOOKEEPER-3457:
-----------------------------------

             Summary: Code optimization in QuorumCnxManager
                 Key: ZOOKEEPER-3457
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3457
             Project: ZooKeeper
          Issue Type: Improvement
          Components: quorum
    Affects Versions: 3.5.5
            Reporter: tom.long
             Fix For: 3.5.5



Dear developer:
I think the following code in line 623 of the QuorumCnxManager class can be optimized:

{code:java}
ArrayBlockingQueue<ByteBuffer> bq = new ArrayBlockingQueue<ByteBuffer>(
SEND_CAPACITY);
ArrayBlockingQueue<ByteBuffer> oldq = queueSendMap.putIfAbsent(sid, bq);
if (oldq != null) {
addToSendQueue(oldq, b);
} else {
addToSendQueue(bq, b);
}
{code}
The optimization is as follows:
{code:java}
ArrayBlockingQueue<ByteBuffer> bq = queueSendMap.computeIfAbsent(sid, serverId 
 -> new ArrayBlockingQueue<>(SEND_CAPACITY));
addToSendQueue(bq, b);
{code}



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