Error OAI-PMH OJS 2.4.8.3

Nathalia_Avila · March 13, 2019, 7:40pm

Hello,

When some of our journals were collected through OAI, the following message appears:

2019-02-28 02:06:57

ERROR: UERJ-13 :: Harvest finished with errors

2019-02-28 02:06:54

ERROR: Fatal: Parsing XML (SAXException - set org.oclc.oai.harvester2 Logger level = DEBUG and see log file for xml body details): http://www.e-publicacoes.uerj.br/index.php/soletras / oai? verb = ListRecords & metadataPrefix = oai_dc :: White spaces are required between publicId and systemId.

2019-02-28 02:06:53

INFO: There are NO sets defined, the entire collection will be harvested

Are there any suggestions to fix the problem?

ctgraham · March 14, 2019, 12:41pm

The error message appears to be slightly misleading.

The actual error message coming from the ListRecords verb with the oai_dc metadataPrefix is:

Cannot instantiate class. Class “Dc11SchemaArticleAdapter” is not declared in “plugins.metadata.dc11.filter.Dc11SchemaArticleAdapter”.

Does your “Dc11SchemaArticleAdapter.inc.php” look like this?

github.com

pkp/ojs/blob/ojs-2_4_8-3/plugins/metadata/dc11/filter/Dc11SchemaArticleAdapter.inc.php

<?php

/**
 * @file plugins/metadata/dc11/filter/Dc11SchemaArticleAdapter.inc.php
 *
 * Copyright (c) 2013-2018 Simon Fraser University
 * Copyright (c) 2000-2018 John Willinsky
 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
 *
 * @class Dc11SchemaArticleAdapter
 * @ingroup plugins_metadata_dc11_filter
 * @see Article
 * @see PKPDc11Schema
 *
 * @brief Abstract base class for meta-data adapters that
 *  injects/extracts Dublin Core schema compliant meta-data into/from
 *  an PublishedArticle object.
 */

This file has been truncated. show original

The error message seems to indicate that line 23 is not functioning as expected.

Mauricio_Adriano · March 15, 2019, 8:19pm

Hi.

We’ve received a similar message from a harvester, and the line 23 of our Dc11SchemaArticleAdapter.inc.php file don’t have difference from the example.

2019-02-28 10:33:36
ERROR: UNENTRO-3 :: Cosecha finalizada con errores
2019-02-28 10:33:35
ERROR: Fatal:Parsing XML (SAXException - set org.oclc.oai.harvester2 Logger level=DEBUG and see file log for xml body details): http://revistas.unicentro.br/index.php/RECEN/oai?verb=ListRecords&metadataPrefix=oai_dc :: White spaces are required between publicId and systemId.
2019-02-28 10:33:35
INFO: NO hay sets definidos, se cosechará toda la colección

What actions could we take?

ctgraham · March 22, 2019, 12:24pm

@Mauricio_Adriano, the link above appears to return valid XML now. How were you able to resolve the issue?

Mauricio_Adriano · March 22, 2019, 2:21pm

Hi @ctgraham,

I only updated in “Setup > Details > 1.8 Search engine indexing > Custom tags” the meta tag scheme=“identifier”, there was a space in content value, but I wasn’t sure if this was the problem.