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package eu.dnetlib.data.mdstore.modular;
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import java.util.List;
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import java.util.stream.Stream;
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import eu.dnetlib.data.mdstore.modular.connector.MDStore;
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import eu.dnetlib.data.mdstore.modular.connector.MDStoreDao;
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import eu.dnetlib.enabling.resultset.factory.ResultSetFactory;
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import eu.dnetlib.enabling.tools.DnetStreamSupport;
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import eu.dnetlib.rmi.common.ResultSet;
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import eu.dnetlib.rmi.data.DocumentNotFoundException;
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import eu.dnetlib.rmi.data.MDStoreServiceException;
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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.springframework.beans.factory.annotation.Required;
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public class MDStoreRetriever {
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/**
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* Logger
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*/
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private static final Log log = LogFactory.getLog(MDStoreRetriever.class);
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private MDStoreDao dao;
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private ResultSetFactory resultSetFactory;
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public ResultSet<String> deliver(final String mdId, final String from, final String until, final String recordFilter) throws MDStoreServiceException {
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final MDStore mdStore = dao.readMDStore(mdId);
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return getResultSetFactory().createResultSet(mdStore.deliver(from, until, recordFilter));
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}
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public Iterable<String> deliver(final String format, final String layout, final String interpretation) throws MDStoreServiceException {
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return () -> getMdIds(format, layout, interpretation).stream().map(mdId -> {
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log.debug("bulk deliver of mdId: " + mdId);
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try {
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return DnetStreamSupport.generateStreamFromIterator(dao.readMDStore(mdId).iterate().iterator());
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} catch (Throwable e) {
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throw new RuntimeException(e);
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}
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}).reduce(Stream::concat).orElseGet(Stream::empty).iterator();
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}
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private List<String> getMdIds(final String format, final String layout, final String interpretation) {
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try {
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return dao.listMDStores(format, layout, interpretation);
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} catch (MDStoreServiceException e) {
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throw new RuntimeException(e);
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}
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}
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public String deliverRecord(final String mdId, final String recordId) throws MDStoreServiceException, DocumentNotFoundException {
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return dao.getMDStore(mdId).getRecord(recordId);
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}
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public MDStoreDao getDao() {
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return dao;
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}
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@Required
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public void setDao(final MDStoreDao dao) {
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this.dao = dao;
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}
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public ResultSetFactory getResultSetFactory() {
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return resultSetFactory;
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}
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@Required
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public void setResultSetFactory(final ResultSetFactory resultSetFactory) {
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this.resultSetFactory = resultSetFactory;
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}
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}
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