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package eu.dnetlib.data.mdstore.plugins;
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import java.io.StringReader;
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import java.util.Map;
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import javax.xml.bind.JAXBException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.dom4j.Document;
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import org.dom4j.DocumentException;
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import org.dom4j.Element;
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import org.dom4j.io.SAXReader;
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import com.mongodb.BasicDBObject;
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import com.mongodb.DBObject;
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import com.mongodb.client.MongoCollection;
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import eu.dnetlib.data.mdstore.modular.mongodb.MongoMDStore;
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import eu.dnetlib.data.mdstore.plugins.objects.MdRecord;
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import eu.dnetlib.data.mdstore.plugins.objects.MdRecordConvertUtils;
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import eu.dnetlib.rmi.data.MDStoreServiceException;
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public abstract class MdRecordPlugin extends AbstractIstiMDStorePlugin {
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private static final Log log = LogFactory.getLog(MdRecordPlugin.class);
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@Override
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public final void process(final MongoMDStore store, final Map<String, String> params) throws MDStoreServiceException {
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final MongoCollection<DBObject> collPubs = store.getCollection();
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int count = 0;
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final SAXReader reader = new SAXReader();
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reconfigure(params);
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for (final DBObject obj : collPubs.find()) {
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try {
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final String recordId = obj.get("id").toString();
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final Document doc = reader.read(new StringReader(obj.get("body").toString()));
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final Element mdNode = (Element) doc.selectSingleNode("//*[local-name() = 'metadata']");
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final Element xmlRecord = (Element) mdNode.selectSingleNode("./record").detach();
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final MdRecord record = MdRecordConvertUtils.fromString(xmlRecord.asXML());
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if (updateRecord(recordId, record)) {
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final Document docPart = reader.read(new StringReader(MdRecordConvertUtils.toString(record)));
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mdNode.add(docPart.getRootElement());
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collPubs.updateOne(new BasicDBObject("id", recordId), new BasicDBObject("$set", new BasicDBObject("body", doc.asXML())));
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count++;
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}
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} catch (final DocumentException | JAXBException e) {
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log.warn("Problem parsing a mdstore record", e);
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}
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}
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log.info("Number of patched records: " + count);
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resetConfiguration();
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touch(store);
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}
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abstract protected void reconfigure(Map<String, String> params);
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abstract protected void resetConfiguration();
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abstract protected boolean updateRecord(String recordId, MdRecord record);
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}
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