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package eu.dnetlib.data.search.app;
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import eu.dnetlib.api.data.IndexService;
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import eu.dnetlib.api.data.IndexServiceException;
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import eu.dnetlib.api.data.SearchService;
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import eu.dnetlib.api.data.SearchServiceException;
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import eu.dnetlib.api.enabling.ISLookUpService;
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import eu.dnetlib.common.rmi.UnimplementedException;
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import eu.dnetlib.data.search.app.plan.FieldRewriteRule;
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import eu.dnetlib.data.search.app.plan.QueryRewriteRule;
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import eu.dnetlib.data.search.solr.SolrResultSet;
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import eu.dnetlib.data.search.transform.Transformer;
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import eu.dnetlib.data.search.transform.TransformerException;
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import eu.dnetlib.data.search.transform.config.SearchRegistry;
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import eu.dnetlib.data.search.transform.formatter.Formatter;
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import eu.dnetlib.domain.ActionType;
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import eu.dnetlib.domain.EPR;
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import eu.dnetlib.domain.ResourceType;
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import eu.dnetlib.domain.data.FormattedSearchResult;
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import eu.dnetlib.domain.data.SearchResult;
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import eu.dnetlib.domain.data.SuggestiveResult;
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import eu.dnetlib.domain.enabling.Notification;
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import eu.dnetlib.functionality.index.cql.CqlTranslator;
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import eu.dnetlib.functionality.index.cql.CqlTranslatorImpl;
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import gr.uoa.di.driver.app.DriverServiceImpl;
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import gr.uoa.di.driver.enabling.issn.NotificationListener;
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import gr.uoa.di.driver.enabling.resultset.ResultSet;
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import gr.uoa.di.driver.enabling.resultset.ResultSetFactory;
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import gr.uoa.di.driver.util.ServiceLocator;
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import org.apache.log4j.Logger;
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import org.w3c.dom.Document;
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import org.w3c.dom.Node;
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import org.xml.sax.InputSource;
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import org.z3950.zing.cql.CQLParseException;
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import org.z3950.zing.cql.CQLParser;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.xpath.XPath;
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import javax.xml.xpath.XPathConstants;
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import javax.xml.xpath.XPathExpression;
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import javax.xml.xpath.XPathFactory;
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import java.io.IOException;
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import java.io.StringReader;
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import java.util.*;
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//import eu.dnetlib.utils.cql.CqlException;
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public class SearchServiceImpl extends DriverServiceImpl
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implements SearchService {
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private static Logger logger = Logger.getLogger(SearchServiceImpl.class);
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@Deprecated
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private static Logger tlogger = Logger.getLogger("eu.dnetlib.data.search.app.Timer");
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private String mdFormat = "DMF";
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private String indexLayout = "index";
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private ServiceLocator<IndexService> indexLocator = null;
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private ServiceLocator<ISLookUpService> lookUpServiceServiceLocator = null;
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private ResultSetFactory rsFactory = null;
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private SearchRegistry transformerFactory = null;
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private List<QueryRewriteRule> queryRules = null;
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private Map<String, FieldRewriteRule> fieldRules = null;
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private boolean enableBrowseCache = false;
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private SearchServiceBlackboardHandler blackboardNotificationHandler = null;
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private CQLParser cqlParser = null;
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@Override
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public void init() {
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super.init();
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String serviceId = this.getServiceEPR().getParameter("serviceId");
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this.subscribe(
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ActionType.UPDATE,
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ResourceType.SEARCHSERVICERESOURCETYPE,
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serviceId,
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"RESOURCE_PROFILE/BODY/BLACKBOARD/LAST_REQUEST",
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new NotificationListener() {
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@Override
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public void processNotification(Notification notification) {
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blackboardNotificationHandler.notified(
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notification.getSubscriptionId(),
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notification.getTopic(),
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notification.getIsId(),
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notification.getMessage());
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}
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});
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try {
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String searchProfile = lookUpServiceServiceLocator.getService().getResourceProfile(serviceId);
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if (searchProfile != null) {
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DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
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dbf.setNamespaceAware(true);
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DocumentBuilder db = dbf.newDocumentBuilder();
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Document doc = db.parse(new InputSource(new StringReader(searchProfile)));
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XPathFactory factory = XPathFactory.newInstance();
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XPath xpath = factory.newXPath();
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XPathExpression searchMdFormatExpression = xpath.compile("//SERVICE_PROPERTIES/PROPERTY[@key='mdformat']");
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Node node = (Node) searchMdFormatExpression.evaluate(doc,XPathConstants.NODE);
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if (node != null){
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String profileMdFormat = node.getAttributes().getNamedItem("value").getTextContent();
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if (profileMdFormat != null) {
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logger.debug("mdformat in properties " + mdFormat );
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logger.info("Setting mdformat to '" + profileMdFormat + "'");
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mdFormat = profileMdFormat;
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}
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}
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}
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} catch (Exception e) {
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logger.error("Fail to load search service profile with id " + serviceId + " from IS.", e);
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}
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}
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@Override
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public SuggestiveResult suggestiveSearch(String query)
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throws SearchServiceException {
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throw new UnimplementedException();
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/* logger.debug("running suggestive search for " + query);
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SuggestiveResult suggestiveResult = new SuggestiveResult();
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IndexService index = getIndexLocator().getService();
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try {
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Hint hint = index.suggestiveSearch("all", "query=" + text, mdFormat, "index", "SimpleRatioHeuristics");
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String alternateTerm = hint.getAlternateTerm();
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boolean autofollow = hint.isAutoFollowHint();
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logger.debug("alternateTerm " + alternateTerm + " autofollow " + autofollow);
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if (alternateTerm != null) {
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suggestiveResult.setAlternativeTerm(alternateTerm);
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suggestiveResult.setAutofollow(autofollow);
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if (autofollow) {
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logger.debug("getting epr for " + alternateTerm);
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suggestiveResult.setEpr(search(alternateTerm));
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} else {
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logger.debug("getting epr for " + query);
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suggestiveResult.setEpr(search(query));
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}
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} else {
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logger.debug("getting epr for " + query);
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suggestiveResult.setEpr(search(query));
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}
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} catch (IndexServiceException ise) {
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logger.error("Error calling index", ise);
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throw new SearchServiceException("Error calling index.");
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}
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return suggestiveResult; */
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}
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166
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private String getCorrectLocale(String givenLocaleName){
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168
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String correctLocale = null;
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if (givenLocaleName == null) {
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return transformerFactory.getConfig().getDefaultLocale().getLanguage() + "_" + transformerFactory.getConfig().getDefaultLocale().getCountry();
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} else {
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correctLocale = givenLocaleName;
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}
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//get the locale
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StringTokenizer tokenizer = new StringTokenizer(correctLocale, "_");
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Locale requestLocale = new Locale(tokenizer.nextToken(), tokenizer.nextToken());
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if(requestLocale == null || !transformerFactory.getConfig().getLocales().contains(requestLocale)){
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correctLocale = transformerFactory.getConfig().getDefaultLocale().getLanguage() + "_" + transformerFactory.getConfig().getDefaultLocale().getCountry();
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}
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return correctLocale;
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}
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@Override
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public SearchResult search(String text, String transformer, String locale, int page, int size) throws SearchServiceException {
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logger.info("Received search request for: '" + text + "'");
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189
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190
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IndexService index = getIndexLocator().getService();
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EPR epr = null;
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String query = rewrite(text);
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List<String> searchResults = null;
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195
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196
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try {
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long time = System.currentTimeMillis();
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198
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199
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cqlParser = new CQLParser();
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query = cqlParser.parse(query).toCQL();
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logger.info("Performing search for: '" + query + "'");
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202
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203
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if (logger.isDebugEnabled()) {
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logger.debug("index lookup (all, query=" + query + ", " + mdFormat + ", index)");
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}
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206
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207
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/**
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* Ask index for search results
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**/
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210
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211
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epr = index.indexLookup("all", query, mdFormat, indexLayout);
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213
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if (logger.isDebugEnabled()) {
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logger.debug("epr = " + epr);
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215
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}
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216
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217
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time = System.currentTimeMillis() - time;
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logger.info("Got epr for query " + query);
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logger.debug("index epr response lasted " + time + " msec");
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tlogger.debug("Got index epr response for query " + query);
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221
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222
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} catch (IndexServiceException ise) {
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223
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logger.error("Error calling index.", ise);
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224
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throw new SearchServiceException("Error calling index.");
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225
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226
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} catch (CQLParseException cqle) {
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227
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logger.error("Bad CQL query.", cqle);
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228
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throw new SearchServiceException("Error calling index.");
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229
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230
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} catch (IOException ioe) {
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231
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logger.error("Bad CQL query.", ioe);
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232
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throw new SearchServiceException("Error calling index.");
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233
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}
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234
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235
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if (epr == null) {
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236
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throw new SearchServiceException("Index returned null result set id.");
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237
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}
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238
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239
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String correctLocale = getCorrectLocale(locale);
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240
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StringTokenizer tokenizer = new StringTokenizer(correctLocale, "_");
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241
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Locale requestLocale = new Locale(tokenizer.nextToken(), tokenizer.nextToken());
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242
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/**
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243
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* Read ResultSet for search
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244
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*/
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245
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logger.info("Creating result set...");
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246
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ResultSet<String> rs = rsFactory.createResultSet(epr);
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247
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248
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try {
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249
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int rsSize = rs.size();
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250
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int from = (page-1)*size + 1;
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251
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int to = (page*size < rsSize) ? page*size : rsSize;
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252
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253
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logger.info("Reading result set elements...");
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254
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long startTime = System.nanoTime();
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255
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List<String> xmls = rs.getElements(from, to);
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256
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long estimatedTime = System.nanoTime() - startTime;
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257
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logger.info("Reading results for search query " + query + " took " + estimatedTime/1000000 + " milliseconds - page: " + page + ", size: " + size);
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258
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searchResults = new ArrayList<String>();
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259
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260
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logger.info("Transforming result set elements...");
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261
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Transformer tr = transformerFactory.getTransformer(transformer, requestLocale);
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262
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/**
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263
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* Transform the search records xmls
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264
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*/
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265
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if (tr != null) {
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266
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for (String xml:xmls) {
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267
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//logger.debug("xml index " + xml);
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268
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searchResults.add(tr.transform(xml));
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269
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}
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270
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} else { // if there is no transformer defined add the xmls as you got them
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271
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for (String xml:xmls) {
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272
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searchResults.add(xml);
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273
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}
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274
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}
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275
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276
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} catch (TransformerException te) {
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277
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logger.error("Error transforming search results.", te);
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278
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throw new SearchServiceException("Error transforming search results.", te);
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279
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}
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280
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281
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logger.debug("Search results for query "+ query + " created.");
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282
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logger.info("Returned search results for query '" + query +"'");
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283
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284
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Runtime runtime = Runtime.getRuntime();
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285
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// Run the garbage collector
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286
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runtime.gc();
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287
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// Calculate the used memory
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288
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long memory = runtime.totalMemory() - runtime.freeMemory();
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289
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System.out.println("Used memory is bytes: " + memory);
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290
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291
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logger.info("MEMORY >> " + runtime.totalMemory());
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292
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logger.info("MEMORY >> " + runtime.freeMemory());
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293
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logger.info("MEMORY >> " + (runtime.totalMemory()-runtime.freeMemory()));
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|
294
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|
|
295
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return new SearchResult(query, correctLocale, rs.size(), page, size, searchResults);
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|
296
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}
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|
297
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|
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298
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@Override
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|
299
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public SearchResult refine(String text, String transformer, String locale, Collection<String> fields) throws SearchServiceException {
|
|
300
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logger.info("Received refine request for: '" + text + "' and fields " + fields);
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|
301
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IndexService index = getIndexLocator().getService();
|
|
302
|
EPR epr = null;
|
|
303
|
String query = rewrite(text);
|
|
304
|
|
|
305
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List<String> browseResults = null;
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|
306
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ResultSet<String> rs = null;
|
|
307
|
|
|
308
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/**
|
|
309
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* For refine
|
|
310
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*/
|
|
311
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try {
|
|
312
|
long time = System.currentTimeMillis();
|
|
313
|
|
|
314
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cqlParser = new CQLParser();
|
|
315
|
query = cqlParser.parse(query).toCQL();
|
|
316
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logger.debug("The refine query " + query);
|
|
317
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logger.info("Performing refine query for: '"+query+"' and refine fields " + fields);
|
|
318
|
|
|
319
|
StringBuffer buffer = new StringBuffer();
|
|
320
|
buffer.append("query=").append(query).append("&groupby=");
|
|
321
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for (Iterator<String> iter = fields.iterator(); iter.hasNext();) {
|
|
322
|
String field = (String) iter.next();
|
|
323
|
buffer.append(field);
|
|
324
|
if (iter.hasNext()) {
|
|
325
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buffer.append(",");
|
|
326
|
}
|
|
327
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}
|
|
328
|
|
|
329
|
if (logger.isDebugEnabled()) {
|
|
330
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logger.debug("The refine query " + query);
|
|
331
|
logger.debug("index refine (" + buffer.toString()
|
|
332
|
+ ", all, " + mdFormat + ", index)");
|
|
333
|
}
|
|
334
|
|
|
335
|
epr = index.getBrowsingStatistics(buffer.toString(), "all", mdFormat, indexLayout);
|
|
336
|
time = System.currentTimeMillis() - time;
|
|
337
|
logger.debug("index epr response lasted " + time + " msec");
|
|
338
|
logger.info("Got epr index response for refine query '" + query + "' and fields " + fields);
|
|
339
|
|
|
340
|
} catch (CQLParseException cqle) {
|
|
341
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logger.error("Bad CQL query.", cqle);
|
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342
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throw new SearchServiceException("Error calling index.");
|
|
343
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} catch (IndexServiceException ise) {
|
|
344
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logger.error("Error getting refine results.", ise);
|
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345
|
throw new SearchServiceException("Error getting refine results.", ise);
|
|
346
|
} catch (IOException ioe) {
|
|
347
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logger.error("Bad CQL query.", ioe);
|
|
348
|
throw new SearchServiceException("Error calling index.");
|
|
349
|
}
|
|
350
|
|
|
351
|
if (epr == null) {
|
|
352
|
throw new SearchServiceException("Index returned null result set id.");
|
|
353
|
}
|
|
354
|
|
|
355
|
//get the locale
|
|
356
|
String correctLocale = getCorrectLocale(locale);
|
|
357
|
StringTokenizer tokenizer = new StringTokenizer(correctLocale, "_");
|
|
358
|
Locale requestLocale = new Locale(tokenizer.nextToken(), tokenizer.nextToken());
|
|
359
|
|
|
360
|
try{
|
|
361
|
logger.info("Creating result set...");
|
|
362
|
rs = rsFactory.createResultSet(epr);
|
|
363
|
|
|
364
|
if (logger.isDebugEnabled()) {
|
|
365
|
logger.debug("EPR : " + epr.getEpr());
|
|
366
|
}
|
|
367
|
|
|
368
|
long startTime = System.nanoTime();
|
|
369
|
logger.info("Reading result set elements...");
|
|
370
|
List<String> list = rs.getElements(1, rs.size());
|
|
371
|
logger.info("RS " + list.size());
|
|
372
|
long estimatedTime = System.nanoTime() - startTime;
|
|
373
|
logger.info("Reading results for refine query " + query + " took " + estimatedTime/1000000 + " milliseconds");
|
|
374
|
|
|
375
|
logger.debug("record list size " + list.size());
|
|
376
|
|
|
377
|
/**
|
|
378
|
* Transform each refine row
|
|
379
|
*/
|
|
380
|
logger.info("Transforming result set elements...");
|
|
381
|
Transformer tr = transformerFactory.getTransformer(transformer, requestLocale);
|
|
382
|
browseResults = new ArrayList<String>();
|
|
383
|
if (tr!=null) {
|
|
384
|
for (String row: list) {
|
|
385
|
browseResults.add(tr.transform(row));
|
|
386
|
}
|
|
387
|
} else {
|
|
388
|
browseResults.addAll(list);
|
|
389
|
logger.debug("BROWSE in tr " + browseResults);
|
|
390
|
}
|
|
391
|
|
|
392
|
} catch (TransformerException te) {
|
|
393
|
logger.error("Error transforming refine results.", te);
|
|
394
|
throw new SearchServiceException("Error transforming refine results.", te);
|
|
395
|
}
|
|
396
|
|
|
397
|
logger.info("Returned results for refine query '" + query + "' and fields " + fields);
|
|
398
|
return new SearchResult(query, correctLocale, fields, browseResults);
|
|
399
|
}
|
|
400
|
|
|
401
|
@Override
|
|
402
|
public SearchResult searchNrefine(String text, String searchTransformer, String browseTransformer,
|
|
403
|
String locale, int page, int size, Collection<String> fields) throws SearchServiceException {
|
|
404
|
logger.info("Received request for search for query: '" + text +"' and refine for fields " + fields);
|
|
405
|
|
|
406
|
IndexService index = getIndexLocator().getService();
|
|
407
|
EPR epr = null;
|
|
408
|
String query = rewrite(text);
|
|
409
|
|
|
410
|
//get the locale
|
|
411
|
String correctLocale = getCorrectLocale(locale);
|
|
412
|
StringTokenizer tokenizer = new StringTokenizer(correctLocale, "_");
|
|
413
|
Locale requestLocale = new Locale(tokenizer.nextToken(), tokenizer.nextToken());
|
|
414
|
|
|
415
|
/**
|
|
416
|
* search
|
|
417
|
* **/
|
|
418
|
List<String> searchResults = null;
|
|
419
|
|
|
420
|
try {
|
|
421
|
long time = System.currentTimeMillis();
|
|
422
|
|
|
423
|
cqlParser = new CQLParser();
|
|
424
|
query = cqlParser.parse(query).toCQL();
|
|
425
|
logger.debug("cqlParser returned query: " + query);
|
|
426
|
logger.info("Performing search for: '" + query + "'");
|
|
427
|
|
|
428
|
if (logger.isDebugEnabled()) {
|
|
429
|
logger.debug("index lookup (all, query=" + query + ", " + mdFormat + ", index)");
|
|
430
|
}
|
|
431
|
|
|
432
|
/**
|
|
433
|
* Ask index for search results
|
|
434
|
**/
|
|
435
|
epr = index.indexLookup("all", query, mdFormat, "index");
|
|
436
|
|
|
437
|
if (logger.isDebugEnabled()) {
|
|
438
|
logger.debug("epr = " + epr);
|
|
439
|
}
|
|
440
|
|
|
441
|
time = System.currentTimeMillis() - time;
|
|
442
|
logger.debug("index epr response " + time + " msec");
|
|
443
|
logger.info("Got index epr response for query '" + query + "'");
|
|
444
|
|
|
445
|
} catch (IndexServiceException ise) {
|
|
446
|
logger.error("Error calling index.", ise);
|
|
447
|
throw new SearchServiceException("Error calling index.");
|
|
448
|
|
|
449
|
} catch (CQLParseException cqle) {
|
|
450
|
logger.error("Bad CQL query.", cqle);
|
|
451
|
throw new SearchServiceException("Error calling index.");
|
|
452
|
|
|
453
|
} catch (IOException ioe) {
|
|
454
|
logger.error("Bad CQL query.", ioe);
|
|
455
|
throw new SearchServiceException("Error calling index.");
|
|
456
|
}
|
|
457
|
|
|
458
|
if (epr == null) {
|
|
459
|
throw new SearchServiceException("Index returned null result set id while performing search for query '"
|
|
460
|
+ query + "'");
|
|
461
|
}
|
|
462
|
|
|
463
|
int rsSize = -1;
|
|
464
|
/**
|
|
465
|
* Read ResultSet for search
|
|
466
|
*/
|
|
467
|
logger.info("Creating result set...");
|
|
468
|
ResultSet<String> rs = rsFactory.createResultSet(epr);
|
|
469
|
try {
|
|
470
|
rsSize = rs.size();
|
|
471
|
int from = (page-1)*size + 1;
|
|
472
|
int to = (page*size < rsSize) ? page*size : rsSize;
|
|
473
|
|
|
474
|
logger.info("Reading result set elements...");
|
|
475
|
long startTime = System.nanoTime();
|
|
476
|
List<String> xmls = rs.getElements(from, to);
|
|
477
|
long estimatedTime = System.nanoTime() - startTime;
|
|
478
|
logger.info("Reading results for search query " + query + " took " + estimatedTime/1000000 + " milliseconds - page: " + page + ", size: " + size);
|
|
479
|
|
|
480
|
logger.info("Transforming result set response...");
|
|
481
|
Transformer tr = transformerFactory.getTransformer(searchTransformer, requestLocale);
|
|
482
|
searchResults = new ArrayList<String>();
|
|
483
|
/**
|
|
484
|
* Transform the search records xmls
|
|
485
|
*/
|
|
486
|
for (String xml:xmls) {
|
|
487
|
searchResults.add(tr.transform(xml));
|
|
488
|
}
|
|
489
|
|
|
490
|
} catch (TransformerException te) {
|
|
491
|
logger.error("Error transforming search results.", te);
|
|
492
|
throw new SearchServiceException("Error transforming search results.", te);
|
|
493
|
}
|
|
494
|
/**
|
|
495
|
* refine
|
|
496
|
*/
|
|
497
|
List<String> browseResults = null;
|
|
498
|
|
|
499
|
try {
|
|
500
|
long time = System.currentTimeMillis();
|
|
501
|
|
|
502
|
cqlParser = new CQLParser();
|
|
503
|
query = cqlParser.parse(query).toCQL();
|
|
504
|
logger.info("Performing refine query for refine fields " + fields);
|
|
505
|
|
|
506
|
StringBuffer buffer = new StringBuffer();
|
|
507
|
buffer.append("query=").append(query).append("&groupby=");
|
|
508
|
for (Iterator<String> iter = fields.iterator(); iter.hasNext();) {
|
|
509
|
String field = (String) iter.next();
|
|
510
|
buffer.append(field);
|
|
511
|
if (iter.hasNext()) {
|
|
512
|
buffer.append(",");
|
|
513
|
}
|
|
514
|
}
|
|
515
|
|
|
516
|
if (logger.isDebugEnabled()) {
|
|
517
|
logger.debug("index refine (" + buffer.toString()
|
|
518
|
+ ", all, " + mdFormat + ", index)");
|
|
519
|
}
|
|
520
|
|
|
521
|
epr = index.getBrowsingStatistics(buffer.toString(), "all", mdFormat, "index");
|
|
522
|
|
|
523
|
time = System.currentTimeMillis() - time;
|
|
524
|
logger.info("Index returned epr for query '" + query +"'");
|
|
525
|
logger.debug("index epr response lasted " + time + " msec");
|
|
526
|
|
|
527
|
} catch (CQLParseException cqle) {
|
|
528
|
logger.error("Bad CQL query.", cqle);
|
|
529
|
throw new SearchServiceException("Error calling index.");
|
|
530
|
} catch (IOException ioe) {
|
|
531
|
logger.error("Bad CQL query.", ioe);
|
|
532
|
throw new SearchServiceException("Error calling index.");
|
|
533
|
} catch (IndexServiceException ise) {
|
|
534
|
logger.error("Error getting refine results.", ise);
|
|
535
|
throw new SearchServiceException("Error getting refine results.", ise);
|
|
536
|
}
|
|
537
|
|
|
538
|
if (epr == null) {
|
|
539
|
throw new SearchServiceException("Index returned null result set id.");
|
|
540
|
}
|
|
541
|
|
|
542
|
|
|
543
|
try{
|
|
544
|
logger.info("Creating result set...");
|
|
545
|
rs = rsFactory.createResultSet(epr);
|
|
546
|
|
|
547
|
if (logger.isDebugEnabled()) {
|
|
548
|
logger.debug("EPR : " + epr.getEpr());
|
|
549
|
}
|
|
550
|
|
|
551
|
logger.info("Reading result set...");
|
|
552
|
long startTime = System.nanoTime();
|
|
553
|
List<String> list = rs.getElements(1, rs.size());
|
|
554
|
long estimatedTime = System.nanoTime() - startTime;
|
|
555
|
logger.info("Reading results for refine query " + query + " took " + estimatedTime/1000000 + " milliseconds");
|
|
556
|
|
|
557
|
logger.debug("record list size " + list.size());
|
|
558
|
|
|
559
|
logger.info("Transforming result set...");
|
|
560
|
Transformer tr = transformerFactory.getTransformer(browseTransformer, requestLocale);
|
|
561
|
browseResults = new ArrayList<String>();
|
|
562
|
for (String row: list) {
|
|
563
|
browseResults.add(tr.transform(row));
|
|
564
|
}
|
|
565
|
|
|
566
|
} catch (TransformerException te) {
|
|
567
|
logger.error("Error transforming refine results.", te);
|
|
568
|
throw new SearchServiceException("Error transforming refine results.", te);
|
|
569
|
|
|
570
|
}
|
|
571
|
|
|
572
|
logger.info("Returned search results for query '" + query +"' and fields " + fields);
|
|
573
|
return new SearchResult(query, correctLocale, rsSize, page, size, searchResults, browseResults, fields);
|
|
574
|
|
|
575
|
}
|
|
576
|
|
|
577
|
public List<String> getSearchResultsFromIndex(){
|
|
578
|
return null;
|
|
579
|
}
|
|
580
|
|
|
581
|
public List<String> getRefineResultsFromIndex(){
|
|
582
|
return null;
|
|
583
|
}
|
|
584
|
|
|
585
|
@Override
|
|
586
|
public FormattedSearchResult search(String queryText, String transformer,
|
|
587
|
String format, String locale, int page, int size)
|
|
588
|
throws SearchServiceException {
|
|
589
|
FormattedSearchResult formattedSearchResult = null;
|
|
590
|
|
|
591
|
SearchResult searchResult = search(queryText, transformer, locale, page, size);
|
|
592
|
Formatter formatter = transformerFactory.getFormatter(format);
|
|
593
|
if (formatter == null) {
|
|
594
|
logger.error("Error formatting search results. " + format +" formatter does not exist.");
|
|
595
|
throw new SearchServiceException("Error formatting search results. " + format +" formatter does not exist.");
|
|
596
|
}
|
|
597
|
|
|
598
|
try {
|
|
599
|
formattedSearchResult = new FormattedSearchResult(formatter.format(searchResult), searchResult.getTotal());
|
|
600
|
logger.debug("Returning formatted result: page " + page + ", size: " + size + " of total: " + searchResult.getTotal());
|
|
601
|
|
|
602
|
} catch (Exception e) {
|
|
603
|
logger.error("Error formatting search results.", e);
|
|
604
|
}
|
|
605
|
|
|
606
|
return formattedSearchResult;
|
|
607
|
|
|
608
|
}
|
|
609
|
|
|
610
|
@Override
|
|
611
|
public FormattedSearchResult refine(String queryText, String refineTransformer,
|
|
612
|
String format, String locale, Collection<String> fields) throws SearchServiceException {
|
|
613
|
|
|
614
|
FormattedSearchResult formattedSearchResult = null;
|
|
615
|
|
|
616
|
SearchResult searchResult = refine(queryText, refineTransformer, locale, fields);
|
|
617
|
Formatter formatter = transformerFactory.getFormatter(format);
|
|
618
|
if (formatter == null) {
|
|
619
|
logger.error("Error formatting refine results. " + format +" formatter does not exist.");
|
|
620
|
throw new SearchServiceException("Error formatting refine results. " + format +" formatter does not exist.");
|
|
621
|
}
|
|
622
|
|
|
623
|
try {
|
|
624
|
formattedSearchResult = new FormattedSearchResult(formatter.format(searchResult), searchResult.getTotal());
|
|
625
|
|
|
626
|
} catch (Exception e) {
|
|
627
|
logger.error("Error formatting refine results.", e);
|
|
628
|
}
|
|
629
|
|
|
630
|
return formattedSearchResult;
|
|
631
|
}
|
|
632
|
|
|
633
|
@Override
|
|
634
|
public FormattedSearchResult searchNrefine(String queryText,
|
|
635
|
String searchTransformer, String refineTransformer, String format,
|
|
636
|
String locale, int page, int size, Collection<String> fields)
|
|
637
|
throws SearchServiceException {
|
|
638
|
FormattedSearchResult formattedSearchResult = null;
|
|
639
|
|
|
640
|
SearchResult searchResult = searchNrefine(queryText, searchTransformer, refineTransformer, locale, page, size, fields);
|
|
641
|
Formatter formatter = transformerFactory.getFormatter(format);
|
|
642
|
if (formatter == null) {
|
|
643
|
logger.error("Error formating search and refine results. " + format +" formatter does not exist.");
|
|
644
|
throw new SearchServiceException("Error formating search and refine results. " + format +" formatter does not exist.");
|
|
645
|
}
|
|
646
|
|
|
647
|
try {
|
|
648
|
formattedSearchResult = new FormattedSearchResult(formatter.format(searchResult), searchResult.getTotal());
|
|
649
|
|
|
650
|
} catch (Exception e) {
|
|
651
|
logger.error("Error formating search results.", e);
|
|
652
|
}
|
|
653
|
|
|
654
|
return formattedSearchResult;
|
|
655
|
}
|
|
656
|
|
|
657
|
private String rewrite(String query) {
|
|
658
|
|
|
659
|
if (queryRules != null) {
|
|
660
|
for (QueryRewriteRule queryRule: queryRules) {
|
|
661
|
if (logger.isDebugEnabled()) {
|
|
662
|
logger.debug("Apply rule " + query);
|
|
663
|
}
|
|
664
|
query = queryRule.apply(query);
|
|
665
|
if (logger.isDebugEnabled()) {
|
|
666
|
logger.debug("Rewritten query is " + query);
|
|
667
|
}
|
|
668
|
}
|
|
669
|
}
|
|
670
|
return query;
|
|
671
|
}
|
|
672
|
|
|
673
|
public String getMdFormat() {
|
|
674
|
return mdFormat;
|
|
675
|
}
|
|
676
|
|
|
677
|
public void setMdFormat(String mdFormat) {
|
|
678
|
this.mdFormat = mdFormat;
|
|
679
|
}
|
|
680
|
|
|
681
|
public ServiceLocator<IndexService> getIndexLocator() {
|
|
682
|
return indexLocator;
|
|
683
|
}
|
|
684
|
|
|
685
|
public void setIndexLocator(ServiceLocator<IndexService> indexLocator) {
|
|
686
|
this.indexLocator = indexLocator;
|
|
687
|
}
|
|
688
|
|
|
689
|
public ResultSetFactory getRsFactory() {
|
|
690
|
return rsFactory;
|
|
691
|
}
|
|
692
|
|
|
693
|
public void setRsFactory(ResultSetFactory rsFactory) {
|
|
694
|
this.rsFactory = rsFactory;
|
|
695
|
}
|
|
696
|
|
|
697
|
public Collection<FieldRewriteRule> getFieldRules() {
|
|
698
|
return fieldRules.values();
|
|
699
|
}
|
|
700
|
|
|
701
|
public void setFieldRules(Collection<FieldRewriteRule> fieldRules) {
|
|
702
|
this.fieldRules = new HashMap<String, FieldRewriteRule>();
|
|
703
|
for (FieldRewriteRule rule : fieldRules) {
|
|
704
|
String key = rule.getFieldName();
|
|
705
|
if (this.fieldRules.containsKey(key)) {
|
|
706
|
logger.warn("Multiple rules for field " + key);
|
|
707
|
logger.warn("Keeping last rule " + rule.getName());
|
|
708
|
}
|
|
709
|
this.fieldRules.put(key, rule);
|
|
710
|
}
|
|
711
|
}
|
|
712
|
|
|
713
|
public List<QueryRewriteRule> getQueryRules() {
|
|
714
|
return queryRules;
|
|
715
|
}
|
|
716
|
|
|
717
|
public void setQueryRules(List<QueryRewriteRule> queryRules) {
|
|
718
|
this.queryRules = queryRules;
|
|
719
|
}
|
|
720
|
|
|
721
|
public boolean isEnableBrowseCache() {
|
|
722
|
return enableBrowseCache;
|
|
723
|
}
|
|
724
|
|
|
725
|
public void setEnableBrowseCache(boolean enableBrowseCache) {
|
|
726
|
this.enableBrowseCache = enableBrowseCache;
|
|
727
|
}
|
|
728
|
|
|
729
|
public SearchRegistry getTransformerFactory() {
|
|
730
|
return transformerFactory;
|
|
731
|
}
|
|
732
|
|
|
733
|
public void setTransformerFactory(SearchRegistry transformerFactory) {
|
|
734
|
this.transformerFactory = transformerFactory;
|
|
735
|
}
|
|
736
|
|
|
737
|
public String getIndexLayout() {
|
|
738
|
return indexLayout;
|
|
739
|
}
|
|
740
|
|
|
741
|
public void setIndexLayout(String indexLayout) {
|
|
742
|
this.indexLayout = indexLayout;
|
|
743
|
}
|
|
744
|
|
|
745
|
public SearchServiceBlackboardHandler getBlackboardNotificationHandler() {
|
|
746
|
return blackboardNotificationHandler;
|
|
747
|
}
|
|
748
|
|
|
749
|
public void setBlackboardNotificationHandler(SearchServiceBlackboardHandler blackboardNotificationHandler) {
|
|
750
|
this.blackboardNotificationHandler = blackboardNotificationHandler;
|
|
751
|
}
|
|
752
|
|
|
753
|
public void setLookUpServiceServiceLocator(ServiceLocator<ISLookUpService> lookUpServiceServiceLocator) {
|
|
754
|
this.lookUpServiceServiceLocator = lookUpServiceServiceLocator;
|
|
755
|
}
|
|
756
|
|
|
757
|
|
|
758
|
public SearchResult newSearch (String text, String locale, List<String> refinefields, List<String> fieldQueries, int from, int to, String format) throws SearchServiceException {
|
|
759
|
logger.info("Received new search request for: '" + text + "' and field queries " + fieldQueries + " and refine " + refinefields);
|
|
760
|
IndexService index = getIndexLocator().getService();
|
|
761
|
|
|
762
|
EPR epr = null;
|
|
763
|
ResultSet<String> rs = null;
|
|
764
|
|
|
765
|
List<String> browseResults = null;
|
|
766
|
List<String> searchResults = null;
|
|
767
|
|
|
768
|
String query = rewrite(text);
|
|
769
|
|
|
770
|
try {
|
|
771
|
query = new CQLParser().parse(query).toCQL();
|
|
772
|
String eprQuery = createEprQuery(query, refinefields, fieldQueries);
|
|
773
|
|
|
774
|
epr = index.getBrowsingStatistics(eprQuery, "all", mdFormat, indexLayout);
|
|
775
|
|
|
776
|
if (epr == null) {
|
|
777
|
throw new SearchServiceException("Something really strange happened there! Index returned null result set id.");
|
|
778
|
}
|
|
779
|
|
|
780
|
//get the locale
|
|
781
|
String correctLocale = getCorrectLocale(locale);
|
|
782
|
StringTokenizer tokenizer = new StringTokenizer(correctLocale, "_");
|
|
783
|
Locale requestLocale = new Locale(tokenizer.nextToken(), tokenizer.nextToken());
|
|
784
|
|
|
785
|
rs = rsFactory.createResultSet(epr);
|
|
786
|
|
|
787
|
long startTime = System.nanoTime();
|
|
788
|
Map<String, List<String>> list = ((SolrResultSet)rs).newGet(from, to, format);
|
|
789
|
long estimatedTime = System.nanoTime() - startTime;
|
|
790
|
logger.debug("Actual time until SolrResultSet response for " + eprQuery + " took " + estimatedTime/1000000 + " milliseconds");
|
|
791
|
|
|
792
|
searchResults = list.get("search");
|
|
793
|
browseResults = list.get("refine");
|
|
794
|
|
|
795
|
} catch (CQLParseException cqle) {
|
|
796
|
logger.error("Bad CQL query: " + query + ".", cqle);
|
|
797
|
throw new SearchServiceException("Error calling index.", cqle);
|
|
798
|
|
|
799
|
} catch (IndexServiceException ise) {
|
|
800
|
logger.error("Error getting refine results.", ise);
|
|
801
|
throw new SearchServiceException("Error getting refine results.", ise);
|
|
802
|
|
|
803
|
} catch (IOException ioe) {
|
|
804
|
logger.error("IO Exception from CQL Paser", ioe);
|
|
805
|
throw new SearchServiceException("Error calling index.", ioe);
|
|
806
|
}
|
|
807
|
|
|
808
|
logger.info("Returned results for NEW search query '" + query + "' and fields " + fieldQueries);
|
|
809
|
return new SearchResult(query, Locale.getDefault().toString(), rs.size(), from, to, searchResults, browseResults, refinefields);
|
|
810
|
}
|
|
811
|
|
|
812
|
|
|
813
|
|
|
814
|
public static String createEprQuery(String query, List<String> refineFields, List<String> fieldQueries) {
|
|
815
|
StringBuffer queryBuffer = new StringBuffer();
|
|
816
|
queryBuffer.append("query=");
|
|
817
|
|
|
818
|
StringBuffer facetsBuffer = new StringBuffer();
|
|
819
|
facetsBuffer.append("&groupby=");
|
|
820
|
|
|
821
|
StringBuffer fqBuffer = new StringBuffer();
|
|
822
|
fqBuffer.append("&fq=");
|
|
823
|
|
|
824
|
if (query != null) { //TODO consider exception?
|
|
825
|
queryBuffer.append(query);
|
|
826
|
}
|
|
827
|
|
|
828
|
if(refineFields != null) {
|
|
829
|
for (Iterator<String> iterator = refineFields.iterator(); iterator.hasNext(); ) {
|
|
830
|
facetsBuffer.append(iterator.next());
|
|
831
|
if (iterator.hasNext()) {
|
|
832
|
facetsBuffer.append(",");
|
|
833
|
}
|
|
834
|
}
|
|
835
|
}
|
|
836
|
|
|
837
|
if(fieldQueries != null) {
|
|
838
|
for (Iterator<String> iterator = fieldQueries.iterator(); iterator.hasNext(); ) {
|
|
839
|
fqBuffer.append(iterator.next());
|
|
840
|
if (iterator.hasNext()) {
|
|
841
|
fqBuffer.append(",");
|
|
842
|
}
|
|
843
|
}
|
|
844
|
}
|
|
845
|
|
|
846
|
return queryBuffer.append(facetsBuffer.toString()).append(fqBuffer.toString()).toString();
|
|
847
|
}
|
|
848
|
|
|
849
|
/*
|
|
850
|
public static String createEprQuery(List<FieldQuery> fieldQueries, String query) {
|
|
851
|
StringBuffer queryBuffer = new StringBuffer();
|
|
852
|
queryBuffer.append("query=").append(query);
|
|
853
|
|
|
854
|
StringBuffer facetsBuffer = new StringBuffer();
|
|
855
|
facetsBuffer.append("&groupby=");
|
|
856
|
|
|
857
|
StringBuffer fqBuffer = new StringBuffer();
|
|
858
|
fqBuffer.append("&fq=");
|
|
859
|
|
|
860
|
for (Iterator<FieldQuery> iter = fieldQueries.iterator(); iter.hasNext();) {
|
|
861
|
FieldQuery field = (FieldQuery) iter.next();
|
|
862
|
facetsBuffer.append(field.getIndexField());
|
|
863
|
if (!field.toSolrQuery().isEmpty()) {
|
|
864
|
fqBuffer.append(field.toSolrQuery()).append(",");
|
|
865
|
}
|
|
866
|
if (iter.hasNext()) {
|
|
867
|
facetsBuffer.append(",");
|
|
868
|
}
|
|
869
|
}
|
|
870
|
|
|
871
|
return queryBuffer.append(facetsBuffer.toString()).append(fqBuffer.toString()).toString();
|
|
872
|
}*/
|
|
873
|
|
|
874
|
|
|
875
|
public static void main(String[] args) throws IOException, CQLParseException {
|
|
876
|
CqlTranslator translator = new CqlTranslatorImpl();
|
|
877
|
|
|
878
|
System.out.println(translator.getTranslatedQuery("(relfunderid = ec__________::EC)and(relfunderid = fct_________::FCT)").getQuery().toLucene());
|
|
879
|
}
|
|
880
|
|
|
881
|
}
|