Feature Request/Idea: Installing an harvesting protocol parser with Java SPI

[luddaniel]

As many want to add new harvesting protocols to the 3 existing protocols : OAI DC, OAI DDI + dataverse_json;
What about having the capability to add a Java Service Provider Interface (SPI) plugin to support a new harvesting protocol parser (like Installing External Metadata Exporters) ?
The community could have an easier time adding to the harvesting feature.
This have been mentioned in the code back in 2016 :

dataverse/src/main/java/edu/harvard/iq/dataverse/api/imports/ImportServiceBean.java

Line 219 in 8c99a74

// TODO: Need to create a system of standardized import plugins - similar to Stephen

• Example : Support for Importing and Exporting DCAT Metadata #1592
• Linked issue : GREI 3: HDV Task - Improve OAI-PMH Harvesting dataverse-pm#171

[pdurbin]

Oh, a parser. Yes, sure. Actually @philippconzett @qqmyers and I (and others) talked about the need for this just this morning (among other things) in the context of #10677.

Basically, all parsing of incoming formats is hard-coded. Right now, you'd have to make a pull request to add a new parser. Yes, it would be nice if these parsers could be added as a jar file (much more modular).

[philippconzett]

So, this feature (#10699) could be part of the solution of #10677?