Add SRU opener / `open-sru`

TobiasNx commented 1 year ago

Like OAI PMH opener, metafacture should be able to retrieve all records of a SRU request. A new modul should be configurable with the specific SRU keywords.

The opener should be similarl to gist.github.com/jorol/989ea5dd464fb85bd99b4733710d2890#oai-pmh and https:// github.com/LibreCat/Catmandu-SRU/tree/dev

In Flux something like:

| open-sru(base="https://services.dnb.de/sru/zdb", recordSchema="MARC21-xml", query="tit = soil biology", parser="marcxml")

We have two use-cases:

Upcoming introduction to metafacture in Potsdam they have knowledge about SRU so it would be handy to show them something they know.
In context of RPB we need to fetch data from HeBis via SRU: RPB-225

Possible other Java sources that could help develop an SRU opener for Metafacture: https://github.com/opacapp/opacclient/blob/master/opacclient/libopac/src/main/java/de/geeksfactory/opacclient/apis/SRU.java https://github.com/rism-international/sru-downloader https://github.com/indexdata/cql-java https://www.loc.gov/standards/sru/resources/products.html

TobiasNx commented 4 days ago

This could maybe help: https://github.com/opacapp/opacclient/blob/master/opacclient/libopac/src/main/java/de/geeksfactory/opacclient/apis/SRU.java

TobiasNx commented 4 days ago

Also https://www.loc.gov/standards/sru/resources/products.html

The SRU module would be nice to introduce it to MF before the workshop in January since it is part of their corriculum

TobiasNx commented 4 days ago

And this: https://github.com/indexdata/cql-java

TobiasNx commented 4 days ago

Opener should be similarl to https://gist.github.com/jorol/989ea5dd464fb85bd99b4733710d2890#oai-pmh and https:// github.com/LibreCat/Catmandu-SRU/tree/dev

in metafacture:

| open-sru(base="https://services.dnb.de/sru/zdb", recordSchema="MARC21-xml", query="tit = soil biology", parser="marcxml")