Wrong value passed to aggregator for record handle

[Twan Goosen]

Florian Schiel? reported:

URL:
​http://catalog-clarin.esc.rzg.mpg.de/vlo/record?fq=resourceClass:audio&fq=collection:Bavarian+Archive+for+Speech+Signals+%28BAS%29&docId=hdl_58_11858_47_00-1779-0000-001A-1C5D-1_64_format_61_cmdi
Issue description:
Something seems to be wrong with the pass to FCS:
The links to FCS appear in resource pages (only) that support FCS in their
CMDI record, but the link opens the FCS without selecting the resource. I
tested it with 'ALC' and 'HAMATAC'.

The cause seems to be that the VLO does not send the record handle to the Aggregator, but instead sends the docId - which is never a valid handle URI. Compare:

VLO 2.18:

 {"https://clarin.phonetik.uni-muenchen.de/BASSRU/": ["hdl:11858/00-1779-0000-001A-1C5D-1@format=cmdi"]}
{"http://cqlservlet.mpi.nl/": ["hdl:1839/00-0000-0000-0001-53A7-1@format=cmdi"]}

VLO 3.0-beta:

 {"https://clarin.phonetik.uni-muenchen.de/BASSRU/": ["hdl_58_11858_47_00-1779-0000-001A-1C5D-1_64_format_61_cmdi"]}

The VLO should always send the handle (is it available at the moment? investigate)

[Twan Goosen]

This was caused by the changes for #490 (on my request, I admit it ;)). The cleanest solution is to add a field 'selfLink' which holds the original, actual self link (which is the source of the doc ID if it is present) and use this field to populate the JSON request to the aggregator.

[Twan Goosen]

Added the field _selfLink to Solr and importer in r5091

[Twan Goosen]

Fixed in r5093

[Twan Goosen]

Merged to VLO-3.0 branch in r5094