ASF GitHub Bot logged work on GOBBLIN-874:

                Author: ASF GitHub Bot
            Created on: 09/Sep/19 16:47
            Start Date: 09/Sep/19 16:47
    Worklog Time Spent: 10m 
      Work Description: sv2000 commented on pull request #2728: [GOBBLIN-874] 
Make WorkUnitPacker and SizeEstimator pluggable
URL: https://github.com/apache/incubator-gobblin/pull/2728#discussion_r322343871

 File path: 
 @@ -58,20 +59,34 @@
   private static final Logger LOG = 
+  /**
+   * For customized type of the following enums, it will try to find declared 
class in classpath
+   * and fallback to exception if ClassNotFound. This way the sizeEstimator 
and packer could be easier to
+   * extend. The major purpose for keeping this enum instead of using 
reflection only to construct the instance
+   * of packer or sizeEstimator is to maintain backward-compatibility.
+   *
+   * The constructor of customized type needs to be annotated with public 
access-modifier as it is instantiated by
+   * {@link GobblinConstructorUtils} which reside in different package, and it 
needs to have the same signature
+   * as other implementation under the enum.
+   */
   public enum PackerType {
+    BI_LEVEL,
 Review comment:
   CUSTOM instead of CUSTOMIZED?
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Issue Time Tracking

    Worklog Id:     (was: 309064)
    Time Spent: 0.5h  (was: 20m)

> Make KafkaWUPacker and SizeEstimator pluggable 
> -----------------------------------------------
>                 Key: GOBBLIN-874
>                 URL: https://issues.apache.org/jira/browse/GOBBLIN-874
>             Project: Apache Gobblin
>          Issue Type: Improvement
>            Reporter: Lei Sun
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h

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