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Posted to dev@flume.apache.org by "Hari Shreedharan (Updated) (JIRA)" <ji...@apache.org> on 2012/02/23 21:16:49 UTC
[jira] [Updated] (FLUME-992) Create configuration stubs for
sources, channels, sinks etc
[ https://issues.apache.org/jira/browse/FLUME-992?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hari Shreedharan updated FLUME-992:
-----------------------------------
Description:
Provide abstract Configuration stubs for each component type, sources, channels, sinks, selectors etc, which are in the new package, independent on ng-core. Now for each of the channels extend the abstract class and check the config properties for each of the required parameters for that component, for example: MultiplexingChannelSelectorConfigurator would look for default channel etc. If a particular component does not have a configuration class then let the current mechanism continue.
This will require implementation for each component, but it should not be too complex. One additional advantage we get from this is that we can separate out the config validation from the components into these stubs, but we will still need to read the values out of the Context as we do currently(else we end up making the configuration dependent on flume-ng-core itself which we wanted to avoid).
A problem with this is making a change to the configuration would require changes in the configuration classes and in the components also(where the configuration is read and the component is actually configured). I could not figure out a way of avoiding this.
was:Currently the configuration provider implementation encompasses all the syntactic and structural validation rules for loading the configuration. Externalizing this functionality to a library will allow external tools to easily operate on flume configuration files and be able to help parse and validate these files.
Summary: Create configuration stubs for sources, channels, sinks etc (was: Creat configuration stubs for sources, channels, sinks etc)
> Create configuration stubs for sources, channels, sinks etc
> -----------------------------------------------------------
>
> Key: FLUME-992
> URL: https://issues.apache.org/jira/browse/FLUME-992
> Project: Flume
> Issue Type: Sub-task
> Affects Versions: v1.0.0
> Reporter: Hari Shreedharan
> Fix For: v1.1.0
>
>
> Provide abstract Configuration stubs for each component type, sources, channels, sinks, selectors etc, which are in the new package, independent on ng-core. Now for each of the channels extend the abstract class and check the config properties for each of the required parameters for that component, for example: MultiplexingChannelSelectorConfigurator would look for default channel etc. If a particular component does not have a configuration class then let the current mechanism continue.
> This will require implementation for each component, but it should not be too complex. One additional advantage we get from this is that we can separate out the config validation from the components into these stubs, but we will still need to read the values out of the Context as we do currently(else we end up making the configuration dependent on flume-ng-core itself which we wanted to avoid).
> A problem with this is making a change to the configuration would require changes in the configuration classes and in the components also(where the configuration is read and the component is actually configured). I could not figure out a way of avoiding this.
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