[
https://issues.apache.org/jira/browse/METRON-777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16113660#comment-16113660
]
ASF GitHub Bot commented on METRON-777:
---------------------------------------
Github user mmiklavc commented on the issue:
https://github.com/apache/metron/pull/530
```
cat ~/.m2/repository/archetype-catalog.xml
<?xml version="1.0" encoding="UTF-8"?>
<archetype-catalog
xsi:schemaLocation="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-catalog/1.0.0
http://maven.apache.org/xsd/archetype-catalog-1.0.0.xsd";
xmlns="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-catalog/1.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<archetypes>
<archetype>
<groupId>org.apache.metron</groupId>
<artifactId>metron-maven-parser-extension-archetype</artifactId>
<version>0.4.0</version>
<description>Apache Maven Parser Extension Archetype for
Metron</description>
</archetype>
</archetypes>
</archetype-catalog>
cat ~/.m2/archetype-catalog.xml
<?xml version="1.0" encoding="UTF-8"?>
<archetype-catalog
xsi:schemaLocation="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-catalog/1.0.0
http://maven.apache.org/xsd/archetype-catalog-1.0.0.xsd";
xmlns="http://maven.apache.org/plugins/maven-archetype-plugin/archetype-catalog/1.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
<archetypes>
...
<archetype>
<groupId>org.apache.metron</groupId>
<artifactId>metron-maven-parser-extension-archetype</artifactId>
<version>0.4.1</version>
<description>Apache Maven Parser Extension Archetype for
Metron</description>
</archetype>
</archetypes>
</archetype-catalog>
```
> Create a plugin system for Metron based on 'NAR'
> ------------------------------------------------
>
> Key: METRON-777
> URL: https://issues.apache.org/jira/browse/METRON-777
> Project: Metron
> Issue Type: New Feature
> Reporter: Otto Fowler
> Assignee: Otto Fowler
>
> The success of the Metron project will be greatly dependent on community
> participation, and with that the ability to adapt and extend Metron without
> having to maintain a fork of the project.
> As organizations and individuals look to extend the Metron system with custom
> parsers, enrichments, and stellar functions that may be proprietary in
> nature, the ability to develop and deploy these extensions outside the Metron
> code base is critically important.
> To that end, and after community discussion and proposal we create or
> formalize the 'plugin' development story in Metron.
> The proposal is to adapt the Apache Nifi NAR system for use in Metron. This
> will provide the system with:
> * archetype(s) for developer projects and independent development
> * defined packaging and metadata for 'plugin' products
> * loading and instantiation with classloader isolation capabilities
> * removing the necessity for shading plugin jars
> These capabilities will also enable other features, such as plugin lifecycle,
> plugin configuration+redeployment, and other things.
> The plugin archetypes and their installation will be a followon
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