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package eu.dnetlib.index.actors;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.function.Function;
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import eu.dnetlib.clients.index.model.document.IndexDocument;
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import eu.dnetlib.clients.index.utils.IndexFieldUtility;
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import eu.dnetlib.index.utils.IndexDateUtility;
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import eu.dnetlib.utils.MetadataReference;
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import eu.dnetlib.clients.index.utils.ServiceTools;
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import eu.dnetlib.enabling.tools.DnetStreamSupport;
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import eu.dnetlib.index.IndexCollection;
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import eu.dnetlib.index.IndexServerDAO;
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import eu.dnetlib.index.IndexServerDAOMap;
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import eu.dnetlib.cql.CqlTranslator;
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import eu.dnetlib.index.feed.DocumentFeeder;
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import eu.dnetlib.index.feed.DocumentMapperFactory;
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import eu.dnetlib.index.feed.FeedMode;
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import eu.dnetlib.index.feed.FeedResult;
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import eu.dnetlib.miscutils.datetime.DateUtils;
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import eu.dnetlib.rmi.provision.IndexServiceException;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* The Class IndexFeedActorImpl.
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*/
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public class IndexFeedActorImpl implements IndexFeedActor {
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/**
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* The Constant log.
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*/
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private static final Log log = LogFactory.getLog(IndexFeedActorImpl.class); // NOPMD by marko on 11/24/08 5:02 PM
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/**
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* The index server dao map.
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*/
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private final transient IndexServerDAOMap indexServerDAOMap;
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/**
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* The service tools.
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*/
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private final transient ServiceTools serviceTools;
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/**
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* Thread pool used for the feeding process.
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*/
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private final transient ExecutorService threadPool = Executors.newCachedThreadPool();
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/**
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* CqlTranslator.
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*/
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private CqlTranslator translator;
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/**
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* Instantiates a new index feed actor impl.
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*
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* @param indexServerDAOMap the index server dao map
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* @param serviceTools the service tools
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*/
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public IndexFeedActorImpl(final IndexServerDAOMap indexServerDAOMap, final ServiceTools serviceTools, final CqlTranslator translator) {
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super();
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this.indexServerDAOMap = indexServerDAOMap;
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this.serviceTools = serviceTools;
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this.translator = translator;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void feedIndex(final String dsId,
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final FeedMode feedMode,
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final Iterable<String> docIterator,
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final ResultsetKeepAliveCallback startCallback,
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final BlackboardActorCallback endCallback,
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final String backendId, final boolean emptyResult) {
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IndexCollection indexCollection = null;
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try {
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startCallback.unschedule();
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final MetadataReference mdref = serviceTools.getMetadataRef(dsId);
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final IndexServerDAO serverDAO = indexServerDAOMap.getIndexServerDAO(backendId);
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final DocumentMapperFactory docMapperFactory = serverDAO.getDocumentMapperFactory();
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final String version = DateUtils.getParsedDateField(DateUtils.now_ISO8601());
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final Function<String, IndexDocument> docMapper = docMapperFactory.getRecordMapper(serverDAO.getSchema(mdref), mdref, dsId, version, emptyResult);
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Iterable<IndexDocument> result = DnetStreamSupport.generateStreamFromIterator(docIterator.iterator()).map(docMapper)::iterator;
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indexCollection = serverDAO.getIndexCollection(mdref);
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final FeedResult res = threadPool.submit(new DocumentFeeder(indexCollection, result)).get();
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cleanMarkedDocuments(indexCollection, dsId);
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if (feedMode.equals(FeedMode.REFRESH)) {
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deleteByVersion(indexCollection, dsId, IndexDateUtility.getParsedDateField(version));
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}
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indexCollection.commit();
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indexCollection.shutdown();
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log.info("FeedResult: " + res.setTimeElapsed(System.currentTimeMillis()));
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endCallback.setJobDone();
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} catch (final Exception e) {
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endCallback.setJobFailed(e);
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log.error("feed index job failed", e);
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} finally {
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if (indexCollection != null) {
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indexCollection.shutdown();
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}
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}
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}
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/**
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* mdFormatVersion.
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*
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* @param indexCollection the server dao
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* @param dsId the ds id
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* @throws IndexServiceException the index service exception
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*/
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private void deleteByVersion(final IndexCollection indexCollection, final String dsId, final String version) throws IndexServiceException {
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final String query = String.format("%s:[* TO \"%s\"}", IndexFieldUtility.DS_VERSION, version);
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indexCollection.deleteByQuery(query, dsId);
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}
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/**
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* method delete documents where IndexMap.DELETE_DOCUMENT field is true
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*
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* @param indexCollection the server dao
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* @param dsId the ds id
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* @throws IndexServiceException the index service exception
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*/
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public void cleanMarkedDocuments(final IndexCollection indexCollection, final String dsId) throws IndexServiceException {
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final String query = IndexFieldUtility.DELETE_DOCUMENT + ":true ";
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indexCollection.deleteByQuery(query, dsId);
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}
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}
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