package com.trendmicro.grid.acl.ds.jpa;
   
   import com.trendmicro.grid.acl.ds.SourceRepository;
   import com.trendmicro.grid.acl.ds.datatypes.SharedSource;
   import com.trendmicro.grid.acl.ds.jpa.entities.JpaSource;
   import com.trendmicro.grid.acl.l0.datatypes.SourceIdentifier;
   import org.springframework.stereotype.Service;
   
   import javax.annotation.Resource;
  import java.util.Collections;
  
  /**
   * TODO: Create Description.
   *
   * @author juergen_kellerer, 2010-06-01
   * @version 1.0
   */
  @Service
  public class JpaSourceFetcher extends AbstractFetcher<SourceIdentifier, JpaSource, SourceRepository> {
  
  	@Resource
  	JpaSourceRepository fallbackRepository;
  
  	public JpaSourceFetcher() {
  		super(SourceRepository.class);
  	}
  
  	@Override
  	protected JpaSourceRepository getFallbackRepository() {
  		return fallbackRepository;
  	}
  
  	@Override
  	protected SharedSource fetch(SourceRepository repository, SourceIdentifier key) {
  		return repository.getSources(Collections.singleton(key)).iterator().next();
  	}
  }