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Posted to issues@ozone.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2020/12/05 16:36:00 UTC
[jira] [Updated] (HDDS-4494) Provide Guice module to inject
configuration to annotated fields
[ https://issues.apache.org/jira/browse/HDDS-4494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HDDS-4494:
---------------------------------
Labels: pull-request-available (was: )
> Provide Guice module to inject configuration to annotated fields
> ----------------------------------------------------------------
>
> Key: HDDS-4494
> URL: https://issues.apache.org/jira/browse/HDDS-4494
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Marton Elek
> Assignee: Marton Elek
> Priority: Major
> Labels: pull-request-available
>
> hadoop-hdds/config project provides a light-weight annotation based configuration interface. It supports to create an object with injection:
> {code:java}
> ReplicationConfig replicationConfig := ozoneConfig.getObject(replicationConfig); {code}
> However, it seems to be hard to inject configuration to the service itself as usually we inject a lot of other dependencies to the constructor, not just the configuration.
>
> One possible solution is using a Guice module. Guice is already used by recon, and this patch adds some optional modules to inject configuration variables to any service / instance if required.
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