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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/08/02 15:54:00 UTC

[jira] [Work logged] (HDFS-16713) Improve Code with Lambda in org.apahce.hadoop.hdfs.server.namenode sub packages

     [ https://issues.apache.org/jira/browse/HDFS-16713?focusedWorklogId=797284&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-797284 ]

ASF GitHub Bot logged work on HDFS-16713:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 02/Aug/22 15:53
            Start Date: 02/Aug/22 15:53
    Worklog Time Spent: 10m 
      Work Description: ZanderXu opened a new pull request, #4674:
URL: https://github.com/apache/hadoop/pull/4674

   ### Description of PR
   Improve Code with Lambda in org.apahce.hadoop.hdfs.server.namenode sub packages.
   
   For example:
   Current logic:
   ```
   public ListenableFuture<GetJournaledEditsResponseProto> getJournaledEdits(
         long fromTxnId, int maxTransactions) {
       return parallelExecutor.submit(
           new Callable<GetJournaledEditsResponseProto>() {
             @Override
             public GetJournaledEditsResponseProto call() throws IOException {
               return getProxy().getJournaledEdits(journalId, nameServiceId,
                   fromTxnId, maxTransactions);
             }
           });
     } 
   ```
   
   Improved Code with Lambda:
   ```
   public ListenableFuture<GetJournaledEditsResponseProto> getJournaledEdits(
         long fromTxnId, int maxTransactions) {
       return parallelExecutor.submit(() -> getProxy().getJournaledEdits(
           journalId, nameServiceId, fromTxnId, maxTransactions));
     } 
   ```
   
   




Issue Time Tracking
-------------------

            Worklog Id:     (was: 797284)
    Remaining Estimate: 0h
            Time Spent: 10m

> Improve Code with Lambda in org.apahce.hadoop.hdfs.server.namenode sub packages
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-16713
>                 URL: https://issues.apache.org/jira/browse/HDFS-16713
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Improve Code with Lambda in org.apahce.hadoop.hdfs.server.namenode sub packages.
> For example:
> Current logic:
> {code:java}
> public ListenableFuture<GetJournaledEditsResponseProto> getJournaledEdits(
>       long fromTxnId, int maxTransactions) {
>     return parallelExecutor.submit(
>         new Callable<GetJournaledEditsResponseProto>() {
>           @Override
>           public GetJournaledEditsResponseProto call() throws IOException {
>             return getProxy().getJournaledEdits(journalId, nameServiceId,
>                 fromTxnId, maxTransactions);
>           }
>         });
>   } {code}
> Improved Code with Lambda:
> {code:java}
> public ListenableFuture<GetJournaledEditsResponseProto> getJournaledEdits(
>       long fromTxnId, int maxTransactions) {
>     return parallelExecutor.submit(() -> getProxy().getJournaledEdits(
>         journalId, nameServiceId, fromTxnId, maxTransactions));
>   } {code}
>  



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