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.convert;
  
  import java.util.Collections;
  import java.util.Set;
  
  import org.n52.iceland.convert.Converter;
  import org.n52.iceland.convert.ConverterException;
  import org.n52.iceland.convert.ConverterKey;
  import org.n52.shetland.ogc.gml.AbstractFeature;
  import org.n52.shetland.ogc.sensorML.AbstractSensorML;
  import org.n52.shetland.ogc.sensorML.Component;
  import org.n52.shetland.ogc.sensorML.ProcessChain;
  import org.n52.shetland.ogc.sensorML.ProcessModel;
  import org.n52.shetland.ogc.sensorML.SensorML;
  import org.n52.shetland.ogc.sensorML.SensorML20Constants;
  import org.n52.shetland.ogc.sensorML.SensorMLConstants;
  import org.n52.shetland.ogc.sensorML.System;
  import org.n52.shetland.ogc.sensorML.v20.AggregateProcess;
  import org.n52.shetland.ogc.sensorML.v20.PhysicalComponent;
  import org.n52.shetland.ogc.sensorML.v20.PhysicalSystem;
  import org.n52.shetland.ogc.sensorML.v20.SimpleProcess;
  import org.n52.shetland.ogc.sos.SosProcedureDescription;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.google.common.base.Joiner;
  import com.google.common.collect.ImmutableSet;
  
  /**
   * {@link Converter} class to convert SensorML 2.0 to SensorML 1.0.1 and the
   * other way round.
   *
   * @author <a href="mailto:c.hollmann@52north.org">Carsten Hollmann</a>
   * @since 4.2.0
   *
   */
  public class SensorML20SensorML101Converter
          extends
          ProcedureDescriptionConverter {
  
      private static final Logger LOGGER = LoggerFactory.getLogger(SensorML20SensorML101Converter.class);
      private static final String NOT_SUPPORTED_FORMAT = "The procedure's description format %s is not supported!";
      private static final String NOT_SUPPORTED_TYPE = "The procedure type  %s is not supported!";
  
      private static final Set<ConverterKey> CONVERTER_KEY_TYPES = ImmutableSet.<ConverterKey> builder()
              .add(new ConverterKey(SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_MIME_TYPE,
                      SensorMLConstants.SENSORML_OUTPUT_FORMAT_MIME_TYPE))
              .add(new ConverterKey(SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_URL,
                      SensorMLConstants.SENSORML_OUTPUT_FORMAT_MIME_TYPE))
              .add(new ConverterKey(SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_MIME_TYPE,
                      SensorMLConstants.SENSORML_OUTPUT_FORMAT_URL))
              .add(new ConverterKey(SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_URL,
                      SensorMLConstants.SENSORML_OUTPUT_FORMAT_URL))
              .add(new ConverterKey(SensorMLConstants.SENSORML_OUTPUT_FORMAT_MIME_TYPE,
                      SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_MIME_TYPE))
              .add(new ConverterKey(SensorMLConstants.SENSORML_OUTPUT_FORMAT_URL,
                      SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_MIME_TYPE))
              .add(new ConverterKey(SensorMLConstants.SENSORML_OUTPUT_FORMAT_MIME_TYPE,
                      SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_URL))
              .add(new ConverterKey(SensorMLConstants.SENSORML_OUTPUT_FORMAT_URL,
                      SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_URL))
              .build();
  
      public SensorML20SensorML101Converter() {
          LOGGER.debug("Converter for the following keys initialized successfully: {}!",
                  Joiner.on(", ").join(CONVERTER_KEY_TYPES));
      }
  
      @Override
      public Set<ConverterKey> getKeys() {
          return Collections.unmodifiableSet(CONVERTER_KEY_TYPES);
      }
  
      @Override
      public AbstractFeature convert(AbstractFeature objectToConvert) throws ConverterException {
          if (objectToConvert instanceof AbstractSensorML) {
              return convert((AbstractSensorML) objectToConvert);
          } else if (objectToConvert instanceof SosProcedureDescription
                  && ((SosProcedureDescription) objectToConvert).getProcedureDescription() instanceof AbstractSensorML) {
              AbstractSensorML convert =
                      convert((AbstractSensorML) ((SosProcedureDescription) objectToConvert).getProcedureDescription());
              SosProcedureDescription sosProcedureDescription = new SosProcedureDescription(convert);
              sosProcedureDescription.add((SosProcedureDescription) objectToConvert);
              sosProcedureDescription.setDescriptionFormat(convert.getDefaultElementEncoding());
              return sosProcedureDescription;
          }
          throw new ConverterException(String.format(NOT_SUPPORTED_FORMAT,
                  objectToConvert.getDefaultElementEncoding()));
      }
  
      private  AbstractSensorML convert(AbstractSensorML asml)
              throws ConverterException {
          if (asml.getDefaultElementEncoding().equals(SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_URL)
                  || asml.getDefaultElementEncoding()
                          .equals(SensorML20Constants.SENSORML_20_OUTPUT_FORMAT_MIME_TYPE)) {
              return convertSensorML20ToSensorML101(asml);
          } else if (asml.getDefaultElementEncoding().equals(SensorMLConstants.SENSORML_OUTPUT_FORMAT_URL)
                  || asml.getDefaultElementEncoding().equals(SensorMLConstants.SENSORML_OUTPUT_FORMAT_MIME_TYPE)) {
              return convertSensorML101ToSensorML20(asml);
          }
          throw new ConverterException(String.format(NOT_SUPPORTED_FORMAT,
                  asml.getDefaultElementEncoding()));
      }
  
      private AbstractSensorML convertSensorML20ToSensorML101(AbstractSensorML objectToConvert)
              throws ConverterException {
          if (objectToConvert instanceof PhysicalSystem) {
              return toSystem((PhysicalSystem) objectToConvert);
          } else if (objectToConvert instanceof PhysicalComponent) {
              return toComponent((PhysicalComponent) objectToConvert);
          } else if (objectToConvert instanceof SimpleProcess) {
              return toProcessModel((SimpleProcess) objectToConvert);
          } else if (objectToConvert instanceof AggregateProcess) {
              return toProcessChain((AggregateProcess) objectToConvert);
          }
          throw new ConverterException(
                  String.format(NOT_SUPPORTED_FORMAT, objectToConvert.getClass().getName()));
      }
  
      private AbstractSensorML toSystem(PhysicalSystem objectToConvert) {
          System system = new System();
          objectToConvert.copyTo(system);
          if (objectToConvert.isSetPosition()) {
              system.setPosition(objectToConvert.getPosition());
          }
          if (objectToConvert.isSetComponents()) {
              system.addComponents(objectToConvert.getComponents());
          }
          // TODO
          return new SensorML().addMember(system);
      }
  
      private AbstractSensorML toComponent(PhysicalComponent objectToConvert) {
          Component component = new Component();
          objectToConvert.copyTo(component);
          if (objectToConvert.isSetPosition()) {
              component.setPosition(objectToConvert.getPosition());
          }
          // TODO
          return new SensorML().addMember(component);
      }
  
      private AbstractSensorML toProcessModel(SimpleProcess objectToConvert) {
          ProcessModel model = new ProcessModel();
          objectToConvert.copyTo(model);
          // TODO
          return new SensorML().addMember(model);
      }
  
      private AbstractSensorML toProcessChain(AggregateProcess objectToConvert) {
          ProcessChain chain = new ProcessChain();
          objectToConvert.copyTo(chain);
          // TODO
          return new SensorML().addMember(chain);
      }
  
      private AbstractSensorML convertSensorML101ToSensorML20(AbstractSensorML objectToConvert)
              throws ConverterException {
          if (objectToConvert instanceof SensorML) {
              if (((SensorML) objectToConvert).isSetMembers()) {
                  return convertSml101AbstractProcess(((SensorML) objectToConvert).getMembers().iterator().next());
              }
          } else {
              return convertSml101AbstractProcess(objectToConvert);
          }
          throw new ConverterException(
                  String.format(NOT_SUPPORTED_TYPE, objectToConvert.getClass().getName()));
      }
  
      private AbstractSensorML convertSml101AbstractProcess(AbstractSensorML objectToConvert)
              throws ConverterException {
          if (objectToConvert instanceof System) {
              return toPhysicalSystem((System) objectToConvert);
          } else if (objectToConvert instanceof Component) {
              return toPhysicalComponent((Component) objectToConvert);
          } else if (objectToConvert instanceof ProcessModel) {
              return toSimpleProcess((ProcessModel) objectToConvert);
          } else if (objectToConvert instanceof ProcessChain) {
              return toAggregateProcess((ProcessChain) objectToConvert);
          }
          throw new ConverterException(
                  String.format(NOT_SUPPORTED_TYPE, objectToConvert.getClass().getName()));
      }
  
      private AbstractSensorML toPhysicalSystem(System objectToConvert) {
          PhysicalSystem system = new PhysicalSystem();
          objectToConvert.copyTo(system);
          if (objectToConvert.isSetPosition()) {
              system.setPosition(objectToConvert.getPosition());
          }
          if (objectToConvert.isSetComponents()) {
              system.addComponents(objectToConvert.getComponents());
          }
          // TODO
          return system;
      }
  
      private AbstractSensorML toPhysicalComponent(Component objectToConvert) {
          PhysicalComponent component = new PhysicalComponent();
          if (objectToConvert.isSetPosition()) {
              component.setPosition(objectToConvert.getPosition());
          }
          objectToConvert.copyTo(component);
          // TODO
          return component;
      }
  
      private AbstractSensorML toSimpleProcess(ProcessModel objectToConvert) {
          SimpleProcess process = new SimpleProcess();
          objectToConvert.copyTo(process);
          // TODO
          return process;
      }
  
      private AbstractSensorML toAggregateProcess(ProcessChain objectToConvert) {
          AggregateProcess process = new AggregateProcess();
          objectToConvert.copyTo(process);
          // TODO
          return process;
      }
  
  }
  