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https://issues.apache.org/jira/browse/ZOOKEEPER-2140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14602851#comment-14602851
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Arshad Mohammad commented on ZOOKEEPER-2140:
--------------------------------------------
Rebased the patch on top of trunk
> NettyServerCnxn and NIOServerCnxn code should be improved
> ---------------------------------------------------------
>
> Key: ZOOKEEPER-2140
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2140
> Project: ZooKeeper
> Issue Type: Improvement
> Reporter: Arshad Mohammad
> Fix For: 3.6.0
>
> Attachments: ZOOKEEPER-2140-1.patch, ZOOKEEPER-2140-2.patch,
> ZOOKEEPER-2140-3.patch
>
>
> Classes org.apache.zookeeper.server.NIOServerCnxn and
> org.apache.zookeeper.server.NettyServerCnxn have following need and scope for
> improvement
> 1) Duplicate code.
> These two classes have around 250 line duplicate code. All the command
> code is duplicated
> 2) Many improvement/bugFix done in one class but not done in other class.
> These changes should be synced
> For example
> In NettyServerCnxn
> {code}
> // clone should be faster than iteration
> // ie give up the cnxns lock faster
> AbstractSet<ServerCnxn> cnxns;
> synchronized (factory.cnxns) {
> cnxns = new HashSet<ServerCnxn>(factory.cnxns);
> }
> for (ServerCnxn c : cnxns) {
> c.dumpConnectionInfo(pw, false);
> pw.println();
> }
> {code}
> In NIOServerCnxn
> {code}
> for (ServerCnxn c : factory.cnxns) {
> c.dumpConnectionInfo(pw, false);
> pw.println();
> }
> {code}
> 3) NettyServerCnxn and NIOServerCnxn classes are bulky unnecessarily.
> Command classes have altogether different functionality, the command classes
> should go in different class files.
> If this done it will be easy to add new command with minimal change to
> existing classes.
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