content: package de.mpg.mpi_inf.ambiversenlu.nlu.entitylinking.datapreparation.genericschema;
  
  import de.mpg.mpi_inf.ambiversenlu.nlu.entitylinking.access.DataAccess;
  import de.mpg.mpi_inf.ambiversenlu.nlu.entitylinking.access.EntityLinkingDataAccessException;
  import de.mpg.mpi_inf.ambiversenlu.nlu.entitylinking.datapreparation.entitiesmetadata.EntitiesMetaDataEntriesDataProvider;
  import de.mpg.mpi_inf.ambiversenlu.nlu.entitylinking.datapreparation.entitiesmetadata.EntityMetaData;
  import de.mpg.mpi_inf.ambiversenlu.nlu.entitylinking.model.Entities;
  import de.mpg.mpi_inf.ambiversenlu.nlu.entitylinking.model.Entity;
  import de.mpg.mpi_inf.ambiversenlu.nlu.tools.basics3.Fact;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.IOException;
  import java.util.*;
  
  public class GenericEntitiesMetaDataDataProvider extends EntitiesMetaDataEntriesDataProvider {
  
  	Logger logger = LoggerFactory.getLogger(GenericEntitiesMetaDataDataProvider.class);
  
  	private GenericReader genericReader;
  
  	private String knowledgebasename;
  
  	public GenericEntitiesMetaDataDataProvider(GenericReader reader, String knowledgebasename) {
  		this.genericReader = reader;
  		this.knowledgebasename = knowledgebasename;
  	}
  
  	private Set<EntityMetaData> run() throws IOException, EntityLinkingDataAccessException {
  		Iterator<Fact> imageURLs = genericReader.iterator(Relations.IMGURL.getRelation());
  		Map<String, String> imageURL = new HashMap<>();
  		while (imageURLs.hasNext()) {
  			Fact fact = imageURLs.next();
  			imageURL.put(fact.getSubject(), fact.getObject());
  		}
  
  		Iterator<Fact> urlsFacts = genericReader.iterator(Relations.URL.getRelation());
  		Map<String, String> urls = new HashMap<>();
  		while (urlsFacts.hasNext()) {
  			Fact fact = urlsFacts.next();
  			urls.put(fact.getSubject(), fact.getObject());
  		}
  
  		Iterator<Fact> titleFacts = genericReader.iterator(Relations.TITLE.getRelation());
  		Map<String, String> titles = new HashMap<>();
  		while (titleFacts.hasNext()) {
  			Fact fact = titleFacts.next();
  			titles.put(fact.getSubject(), fact.getObject());
  		}
  
  		Set<EntityMetaData> entitiesMetaData = new HashSet<>();
  
  		Entities entities = DataAccess.getAllEntities();
  		for (Entity e : entities) {
  			String entityWithLC = e.getIdentifierInKb();
  			String preferredName = titles.get(entityWithLC) != null ? titles.get(entityWithLC) : "";
  			String url = urls.get(entityWithLC) != null ? urls.get(entityWithLC) : "";
  			String depictionUrl = imageURL.get(entityWithLC) != null ? imageURL.get(entityWithLC) : "";
  			String licenceUrl = "";
  			String wikiDataID = e.getIdentifierInKb();
  			String description = "";
  			entitiesMetaData.add(new EntityMetaData(entityWithLC, preferredName, url, depictionUrl, licenceUrl,
  					description, wikiDataID));
  
  		}
  		return entitiesMetaData;
  	}
  
  	/** returns the preferred name */
  
  	@Override
  	public Iterator<EntityMetaData> iterator() {
  		try {
  			return run().iterator();
  		} catch (Exception e) {
  			throw new IllegalStateException(e);
  		}
  	}
  
  	@Override
  	public String getKnowledgebaseName() {
  		return knowledgebasename;
  	}
  
  }
  