content: /*
   * Copyright (C) 2012-2023 52°North Spatial Information Research GmbH
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * If the program is linked with libraries which are licensed under one of
   * the following licenses, the combination of the program with the linked
   * library is not considered a "derivative work" of the program:
   *
   *     - Apache License, version 2.0
   *     - Apache Software License, version 1.0
   *     - GNU Lesser General Public License, version 3
   *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
   *     - Common Development and Distribution License (CDDL), version 1.0
   *
   * Therefore the distribution of the program linked with libraries licensed
   * under the aforementioned licenses, is permitted by the copyright holders
   * if the distribution is compliant with both the GNU General Public
   * License version 2 and the aforementioned licenses.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
   * Public License for more details.
   */
  package org.n52.sos.request.operator;
  
  import java.util.Map;
  
  import org.n52.iceland.request.operator.RequestOperator;
  import org.n52.shetland.ogc.ows.exception.CompositeOwsException;
  import org.n52.shetland.ogc.ows.exception.InvalidParameterValueException;
  import org.n52.shetland.ogc.ows.exception.MissingParameterValueException;
  import org.n52.shetland.ogc.ows.exception.OwsExceptionReport;
  import org.n52.shetland.ogc.sos.Sos2Constants;
  import org.n52.shetland.ogc.sos.SosConstants;
  import org.n52.shetland.ogc.sos.drt.DeleteResultTemplateConstants;
  import org.n52.shetland.ogc.sos.drt.DeleteResultTemplateRequest;
  import org.n52.shetland.ogc.sos.drt.DeleteResultTemplateResponse;
  import org.n52.sos.ds.AbstractDeleteResultTemplateHandler;
  import org.n52.sos.event.events.ResultTemplatesDeletion;
  
  /**
   * {@code IRequestOperator} to handle {@link DeleteResultTemplateRequest}s.
   *
   * @author Eike Hinderk Jürrens
   *
   * @since 4.0.0
   */
  public class DeleteResultTemplateOperator extends
          AbstractTransactionalRequestOperator<AbstractDeleteResultTemplateHandler,
          DeleteResultTemplateRequest,
          DeleteResultTemplateResponse>
          implements RequestOperator {
  
      /**
       * Constructs a new {@code DeleteResultTemplateOperator}.
       */
      public DeleteResultTemplateOperator() {
          super(SosConstants.SOS, Sos2Constants.SERVICEVERSION, DeleteResultTemplateConstants.OPERATION_NAME,
                  DeleteResultTemplateRequest.class);
      }
  
      @Override
      public DeleteResultTemplateResponse receive(DeleteResultTemplateRequest request) throws OwsExceptionReport {
          DeleteResultTemplateResponse response = getOperationHandler().deleteResultTemplates(request);
          getServiceEventBus().submit(new ResultTemplatesDeletion(request, response));
          return response;
      }
  
      @Override
      protected void checkParameters(DeleteResultTemplateRequest request) throws OwsExceptionReport {
          CompositeOwsException exceptions = new CompositeOwsException();
  
          try {
              checkServiceParameter(request.getService());
          } catch (OwsExceptionReport owse) {
              exceptions.add(owse);
          }
          try {
              checkSingleVersionParameter(request);
          } catch (OwsExceptionReport owse) {
              exceptions.add(owse);
          }
  
          checkAnyParameter(request, exceptions);
          checkInvalidAllParameters(request, exceptions);
          checkResultTemplates(request, exceptions);
          checkObservedPropertyOfferingPairs(request, exceptions);
  
          exceptions.throwIfNotEmpty();
      }
  
      private void checkObservedPropertyOfferingPairs(DeleteResultTemplateRequest request,
              CompositeOwsException exceptions) {
          if (request.isSetObservedPropertyOfferingPairs()) {
              for (Map.Entry<String, String> propertyOfferingPair : request.getObservedPropertyOfferingPairs()) {
                  if (!getCache().hasOffering(propertyOfferingPair.getValue())) {
                      exceptions.add(new InvalidParameterValueException(
                              DeleteResultTemplateConstants.PARAMETERS.offering, propertyOfferingPair.getValue()));
                  }
                  if (!getCache().hasObservableProperty(propertyOfferingPair.getKey())) {
                      exceptions.add(new InvalidParameterValueException(
                              DeleteResultTemplateConstants.PARAMETERS.observableProperty,
                              propertyOfferingPair.getKey()));
                  }
              }
          }
      }
  
      private void checkResultTemplates(DeleteResultTemplateRequest request, CompositeOwsException exceptions) {
          if (request.isSetResultTemplates()) {
              for (String resultTemplate : request.getResultTemplates()) {
                  if (!getCache().hasResultTemplate(resultTemplate)) {
                      exceptions.add(new InvalidParameterValueException(
                              DeleteResultTemplateConstants.PARAMETERS.resultTemplate, resultTemplate));
                  }
              }
          }
      }
  
      private void checkAnyParameter(DeleteResultTemplateRequest request, CompositeOwsException exceptions) {
          if (!request.isSetResultTemplates() && !request.isSetObservedPropertyOfferingPairs()) {
              exceptions.add(new MissingParameterValueException("resultTemplate XOR offering and observedProperty."));
          }
      }
  
      private void checkInvalidAllParameters(DeleteResultTemplateRequest request, CompositeOwsException exceptions) {
          if (request.isSetResultTemplates() && request.isSetObservedPropertyOfferingPairs()) {
              exceptions
                      .add(new MissingParameterValueException("only resultTemplate XOR offering and observedProperty."));
          }
      }
  
  }
  