package org.kuali.ole.serviceimpl;
   
   import org.kuali.ole.OleSRUConstants;
   import org.kuali.ole.bo.cql.CQLResponseBO;
   import org.kuali.ole.bo.diagnostics.OleSRUDiagnostics;
   import org.kuali.ole.bo.serachRetrieve.OleSRUSearchRetrieveResponse;
   import org.kuali.ole.handler.OleSRUOpacXMLResponseHandler;
   import org.kuali.ole.service.*;
   import org.kuali.rice.core.api.config.property.Config;
  import org.kuali.rice.core.api.config.property.ConfigContext;
  import org.xml.sax.SAXException;
  
  import javax.xml.parsers.ParserConfigurationException;
  import javax.xml.xpath.XPathExpressionException;
  import java.io.IOException;
  import java.util.Map;
  
  
  /**
   * Created with IntelliJ IDEA.
   * User: ?
   * Date: 7/9/12
   * Time: 5:55 PM
   * To change this template use File | Settings | File Templates.
   */
  public class OleSRUWebServiceImpl implements OleSRUWebService {
  
      public OleDiagnosticsService oleDiagnosticsService;
      public OleCQLQueryParserService oleCQLQueryParserService;
      public OleRequestOperationTypeService oleRequestOperationTypeService;
      public OleValidateInputRequestService oleValidateInputRequestService;
      private Config currentContextConfig;
  
      public OleSRUWebServiceImpl() {
          oleDiagnosticsService = new OleDiagnosticsServiceImpl();
          oleCQLQueryParserService = new OleCQLQueryParserServiceImpl();
          oleRequestOperationTypeService = new OleRequestOperationTypeServiceImpl();
          oleValidateInputRequestService = new OleValidateInputRequestServiceImpl();
      }
  
      /**
       * this is to parse the query from the url and get the object and generate the response xml .Diagnostics takes place, if any error
       *
       * @param reqParamMap
       * @return xml as a string
       */
      public String getOleSRUResponse(Map reqParamMap) {
  
          String respXML = null;
          String operationType = (String) reqParamMap.get(OleSRUConstants.OPERATION_TYPE);
          //String version=(String)reqParamMap.get(OleSRUConstants.VERSION);
          String query = (String) reqParamMap.get(OleSRUConstants.QUERY);
          CQLResponseBO cqlParseBO = null;
          String reqValidation = oleValidateInputRequestService.inputRequestValidation(reqParamMap);
          if (reqValidation != null) {
              OleSRUDiagnostics oleSRUDiagnostics = oleDiagnosticsService.getDiagnosticResponse(getCurrentContextConfig().getProperty(reqValidation));
              OleSRUSearchRetrieveResponse oleSRUSearchRetrieveResponse = new OleSRUSearchRetrieveResponse();
              oleSRUSearchRetrieveResponse.setVersion((String) reqParamMap.get(OleSRUConstants.VERSION));
              oleSRUSearchRetrieveResponse.setNumberOfRecords(new Long(0));
              oleSRUSearchRetrieveResponse.setOleSRUDiagnostics(oleSRUDiagnostics);
              OleSRUOpacXMLResponseHandler oleSRUOpacXMLResponseHandler = new OleSRUOpacXMLResponseHandler();
              return oleSRUOpacXMLResponseHandler.toXML(oleSRUSearchRetrieveResponse,(String)reqParamMap.get("recordSchema"));
          }
          if (OleSRUConstants.SEARCH_RETRIEVE.equalsIgnoreCase(operationType)) {
              String cqlParseXml = oleCQLQueryParserService.parseCQLQuery(query);
              if (cqlParseXml == null) {
                  OleSRUDiagnostics oleSRUDiagnostics = oleDiagnosticsService.getDiagnosticResponse(getCurrentContextConfig().getProperty(OleSRUConstants.INVALID_QUERY_DIAGNOSTIC_MSG));
                  OleSRUSearchRetrieveResponse oleSRUSearchRetrieveResponse = new OleSRUSearchRetrieveResponse();
                  oleSRUSearchRetrieveResponse.setVersion((String) reqParamMap.get(OleSRUConstants.VERSION));
                  oleSRUSearchRetrieveResponse.setNumberOfRecords(new Long(0));
                  oleSRUSearchRetrieveResponse.setOleSRUDiagnostics(oleSRUDiagnostics);
                  OleSRUOpacXMLResponseHandler oleSRUOpacXMLResponseHandler = new OleSRUOpacXMLResponseHandler();
                  return oleSRUOpacXMLResponseHandler.toXML(oleSRUSearchRetrieveResponse,(String)reqParamMap.get("recordSchema"));
  
              }
              cqlParseBO = oleCQLQueryParserService.getCQLResponseObject(cqlParseXml);
          }
          respXML = oleRequestOperationTypeService.performOperationTypeService(reqParamMap, cqlParseBO);
          return respXML;
      }
  
      private Config getCurrentContextConfig() {
          if (null == currentContextConfig) {
              currentContextConfig = ConfigContext.getCurrentContextConfig();
          }
          return currentContextConfig;
      }
  
      public void setCurrentContextConfig(Config currentContextConfig) {
          this.currentContextConfig = currentContextConfig;
      }
  
      public void setOleDiagnosticsService(OleDiagnosticsService oleDiagnosticsService) {
          this.oleDiagnosticsService = oleDiagnosticsService;
      }
  }