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  1. DSpace
  2. DS-2542

XOAI does not support non granular YYYY-MM-DD harvesting properly

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    • Documentation Status:
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      Description

      The validation of some instances with BASE (Bielefelder Academic search engine) validator http://oval.base-search.net/ produced an ERROR for selective harvesting
      " ERROR: No incremental harvesting (day granularity) of ListRecords: Harvest for reference date 2014-10-19 returned no records. Please make sure that the from and until parameters are evaluated."

      OAI-PMH has from and until as optional arguments for ListIdentifiers and ListRecords in order to allow selective harvesting.
      Allthough one might specify a finer granularity the basic YYYY-MM-DD must be supported see:
      https://www.openarchives.org/OAI/openarchivesprotocol.html#Dates

      DSpace 4.2
      Trying to harvest a single day with from and until set to the same YYYY-MM-DD leads to no results allthough items with this date as last_modified are present an in the oai index.
      Other combinations from only, until only from and until with at least 2 days seem to work.

      On demo.dspace.org (5.1)
      http://demo.dspace.org/oai/request?verb=ListRecords&metadataPrefix=oai_dc&until=2015-04-07
      Gives an invalid date error whereas the full granular date works
      http://demo.dspace.org/oai/request?verb=ListRecords&metadataPrefix=oai_dc&until=2015-04-07T15:35:38Z

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              • Assignee:
                tdonohue Tim Donohue
                Reporter:
                cjuergen Claudia J├╝rgen
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