package org.kuali.ole.describe.service;
   
   import org.kuali.incubator.SolrRequestReponseHandler;
   
   import java.util.List;
   
   /**
    * DiscoveryHelperService is the service class to access Discovery services
    */
  public class DiscoveryHelperService {
      private final String queryString = "DocType:bibliographic AND instanceIdentifier:";
      private final String bibQueryString = "DocType:bibliographic AND uniqueId:";
      SolrRequestReponseHandler solrRequestReponseHandler;
  
      /**
       * Returns the Response List based on the queryField and Value from the SolrRequestReponseHandler class.
       *
       * @param queryField
       * @param value
       * @return Returns the Response.
       */
      public List getResponseFromSOLR(String queryField, String value) {
          String queryString = queryField + ":" + value;
          return getSolrRequestReponseHandler().retriveResults(queryString);
      }
  
      /**
       * Returns the List of BibInformation records based on the instanceUUID.
       *
       * @param instanceUUID
       * @return Returns BibInformation
       */
      public List getBibInformationFromInsatnceId(String instanceUUID) {
          return getSolrRequestReponseHandler().retriveResults(queryString + instanceUUID);
      }
  
      /**
       * Returns the List of BibInformation records based on the BibUUID.
       *
       * @param bibUUID
       * @return Returns BibInformation
       */
      public List getBibInformationFromBibId(String bibUUID) {
          return getSolrRequestReponseHandler().retriveResults(bibQueryString + bibUUID);
      }
  
  
      /**
       * Returns the new instance of SolrRequestReponseHandler provided there should not be any existing instance,Otherwise returns existing instance.
       *
       * @return Returns the SolrRequestReponseHandler
       */
      public SolrRequestReponseHandler getSolrRequestReponseHandler() {
          if (null == solrRequestReponseHandler) {
              solrRequestReponseHandler = new SolrRequestReponseHandler();
          }
          return solrRequestReponseHandler;
      }
  
      /**
       * Sets the SolrRequestReponseHandler attribute value.
       *
       * @param solrRequestReponseHandler
       */
      public void setSolrRequestReponseHandler(SolrRequestReponseHandler solrRequestReponseHandler) {
          this.solrRequestReponseHandler = solrRequestReponseHandler;
      }
  }