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Posted to hdfs-dev@hadoop.apache.org by "ZanderXu (Jira)" <ji...@apache.org> on 2022/08/02 15:48:00 UTC

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

ZanderXu created HDFS-16713:
-------------------------------

             Summary: 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
         Environment: 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}
 
            Reporter: ZanderXu
            Assignee: ZanderXu






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