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https://issues.apache.org/jira/browse/HBASE-23683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17022396#comment-17022396
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Sean Busbey commented on HBASE-23683:
-------------------------------------
bq. It does change {{HBaseInterClusterReplicationEndpoint}} by adding two new
protected methods, but that doesn't break compatibility.
Adding protected methods does break source compatibility for a downstream user
that creates their own {{HBaseInterClusterReplicationEndpoint}}. e.g. if they
already had methods of the same signature defined but as a private method, or
if they have the same name + args but a different return type.
But since {{HBaseInterClusterReplicationEndpoint}} is marked {{IA.Private}} I
think this is fine.
> Make HBaseInterClusterReplicationEndpoint more extensible
> ---------------------------------------------------------
>
> Key: HBASE-23683
> URL: https://issues.apache.org/jira/browse/HBASE-23683
> Project: HBase
> Issue Type: Improvement
> Components: Replication
> Reporter: Wellington Chevreuil
> Assignee: Wellington Chevreuil
> Priority: Major
> Fix For: 3.0.0, 2.3.0
>
>
> *HBaseInterClusterReplicationEndpoint* currently creates the cluster
> connection and sink manager instances inside its _init_ method and assigns
> those to private class variables. Then any potential custom extension of
> *HBaseInterClusterReplicationEndpoint* that requires custom implementations
> of connection and/or sink manager would need to resort to _java reflection_
> for effectively replace those instances, such as below:
> {noformat}
> ...
> ClusterConnection conn = (ClusterConnection)ConnectionFactory.
> createConnection(context.getConfiguration(),
> User.create(replicationUgi));
> ReplicationSinkManager sinkManager = new ReplicationSinkManager(conn,
> ctx.getPeerId(),
> this, context.getConfiguration());
> try {
> Field field = this.getClass().getSuperclass().getDeclaredField("conn");
> field.setAccessible(true);
> field.set(this, conn);
> field =
> this.getClass().getSuperclass().getDeclaredField("replicationSinkMgr");
> field.setAccessible(true);
> field.set(this, sinkManager);
> } catch (Exception e) {
> throw new IOException(e);
> }
> ...
> {noformat}
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