[jira] [Created] (MINIFICPP-1471) Make extensions loadable at runtime as plugins

["Ferenc Gerlits (Jira)" <ji...@apache.org>]

Ferenc Gerlits created MINIFICPP-1471:
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             Summary: Make extensions loadable at runtime as plugins
                 Key: MINIFICPP-1471
                 URL: https://issues.apache.org/jira/browse/MINIFICPP-1471
             Project: Apache NiFi MiNiFi C++
          Issue Type: Epic
            Reporter: Ferenc Gerlits
            Assignee: Ferenc Gerlits


Extensions (processors, controller services, and utilities used by them) are currently built as static libraries, and are linked into the minifi executable.

We need to change them to separate shared library plugins which we can load at runtime.

Notes:
 * We need to make sure the plugin we are trying to load is compatible with the minifi core (and not load it if it isn't). Initially, we can require a build version string to match, ie. each plugin will need to be recompiled for each minifi release. We can improve on this approach later.
 * Later we may want to add support for unloading/updating plugins, but this doesn't need to be part of the initial rollout.



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