Accession API v1: Geo info

Add endpoint to AccessionController v1 API /acn/geo as geoInfo(String filterCode, AccessionFilter filter) that returns

{
  "bounds": [
    [-4.8587000, 39.8772333],
    [-6.4917667, 39.0945000]
  ],
  "accessionCount": 123123,
  "tileServers": [ "cdn1.sandbox.genesys-pgr.org", "cdn2.sandbox.genesys-pgr.org" ]
}

Bounds

Add getBounds(AccessionFilter filter) to AccessionServiceImpl.

See https://leafletjs.com/reference-1.3.4.html#latlngbounds

It should select min(latitude), max(longitude), max(latitude), min(longitude) from accession.accessionId.geo and return:

[
 [ min(latitude), max(longitude) ],
 [ max(latitude), min(longitude) ]
]

Accession count

Add public long count(AccessionFilter filter) to AccessionServiceImpl:

@Override
public Page<Accession> list(AccessionFilter filter) {
	long total = elasticsearchService.count(Accession.class, filter);
	if (total < 10000) {
		// If total is below 10K, use actual count
		total = accessionRepository.count(filter.buildQuery());
	}
	return total;
}

Tile servers

Tileservers info is the cdn.servers setting from application.properties and it's accessible at:

@Value("${cdn.servers}")
private String[] cdnServers;