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.web.admin;
  
  import java.io.IOException;
  import java.util.Map;
  import java.util.Map.Entry;
  
  import javax.inject.Inject;
  
  import org.n52.iceland.binding.Binding;
  import org.n52.iceland.binding.BindingKey;
  import org.n52.iceland.binding.BindingRepository;
  import org.n52.iceland.binding.MediaTypeBindingKey;
  import org.n52.iceland.binding.PathBindingKey;
  import org.n52.iceland.ds.ConnectionProviderException;
  import org.n52.iceland.exception.JSONException;
  import org.n52.janmayen.Json;
  import org.n52.janmayen.http.MediaType;
  import org.n52.sos.web.common.ControllerConstants;
  import org.n52.sos.web.common.JSONConstants;
  import org.springframework.http.HttpStatus;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.annotation.ExceptionHandler;
  import org.springframework.web.bind.annotation.RequestBody;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.bind.annotation.RequestMethod;
  import org.springframework.web.bind.annotation.ResponseBody;
  import org.springframework.web.bind.annotation.ResponseStatus;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.node.ArrayNode;
  import com.fasterxml.jackson.databind.node.ObjectNode;
  
  /**
   * @author <a href="mailto:c.autermann@52north.org">Christian Autermann</a>
   * @since 4.0.0
   */
  @Controller
  public class AdminBindingController extends AbstractAdminController {
  
      @Inject
      private BindingRepository bindingRepository;
  
      @ResponseBody
      @ExceptionHandler(JSONException.class)
      @ResponseStatus(HttpStatus.BAD_REQUEST)
      public String onJSONException(JSONException e) {
          return e.getMessage();
      }
  
      @ResponseBody
      @ExceptionHandler(ConnectionProviderException.class)
      @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
      public String onConnectionProviderException(ConnectionProviderException e) {
          return e.getMessage();
      }
  
      @RequestMapping(value = ControllerConstants.Paths.ADMIN_BINDINGS, method = RequestMethod.GET)
      public String view() {
          return ControllerConstants.Views.ADMIN_BINDINGS;
      }
  
      @ResponseBody
      @RequestMapping(value = ControllerConstants.Paths.ADMIN_BINDINGS_JSON_ENDPOINT,
                      method = RequestMethod.GET,
                      produces = ControllerConstants.MEDIA_TYPE_APPLICATION_JSON)
      public String getAll() {
          ObjectNode node = Json.nodeFactory().objectNode();
          node.set(JSONConstants.BINDINGS_KEY, getBindings());
          return Json.print(node);
      }
  
      protected ArrayNode getBindings() {
          Map<MediaType, Binding> bindings = bindingRepository.getAllBindingsByMediaType();
          ArrayNode a = Json.nodeFactory().arrayNode();
          for (Entry<MediaType, Binding> e : bindings.entrySet()) {
              MediaType mediaType = e.getKey();
              a.addObject().put(JSONConstants.BINDING_KEY, mediaType.toString()).put(JSONConstants.ACTIVE_KEY,
                      this.bindingRepository.isActive(new MediaTypeBindingKey(mediaType)));
          }
          return a;
      }
  
      @ResponseBody
      @RequestMapping(value = ControllerConstants.Paths.ADMIN_BINDINGS_JSON_ENDPOINT,
                      method = RequestMethod.POST,
                      consumes = ControllerConstants.MEDIA_TYPE_APPLICATION_JSON)
      public void change(@RequestBody String request) throws IOException {
          JsonNode json = Json.loadString(request);
          if (json.has(JSONConstants.BINDING_KEY)) {
              BindingKey key = getKey(json.path(JSONConstants.BINDING_KEY).asText());
              this.bindingRepository.setActive(key, json.path(JSONConstants.ACTIVE_KEY).asBoolean());
          } else {
              throw new JSONException("Invalid JSON");
          }
      }
  
      private BindingKey getKey(String keyString) {
          try {
              return new MediaTypeBindingKey(MediaType.parse(keyString));
          } catch (IllegalArgumentException e) {
              // nothing to do!!!
          }
          return new PathBindingKey(keyString);
      }
  }
  