content: /*
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
   ~                                                                               ~
   ~ The MIT License (MIT)                                                         ~
   ~                                                                               ~
   ~ Copyright (c) 2015-2025 miaixz.org and other contributors.                    ~
   ~                                                                               ~
   ~ Permission is hereby granted, free of charge, to any person obtaining a copy  ~
   ~ of this software and associated documentation files (the "Software"), to deal ~
   ~ in the Software without restriction, including without limitation the rights  ~
   ~ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     ~
   ~ copies of the Software, and to permit persons to whom the Software is         ~
   ~ furnished to do so, subject to the following conditions:                      ~
   ~                                                                               ~
   ~ The above copyright notice and this permission notice shall be included in    ~
   ~ all copies or substantial portions of the Software.                           ~
   ~                                                                               ~
   ~ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    ~
   ~ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,      ~
   ~ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE   ~
   ~ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER        ~
   ~ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, ~
   ~ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN     ~
   ~ THE SOFTWARE.                                                                 ~
   ~                                                                               ~
   ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
  */
  package org.miaixz.bus.extra.json.provider;
  
  import java.lang.reflect.Type;
  import java.util.*;
  
  import com.google.gson.*;
  import com.google.gson.reflect.TypeToken;
  
  /**
   * Gson 解析器
   *
   * @author Kimi Liu
   * @since Java 17+
   */
  public class GsonProvider extends AbstractJsonProvider {
  
      public static Gson gson;
  
      /**
       * 构造
       */
      public GsonProvider() {
          gson = new GsonBuilder()
                  // 解决gson序列化时出现整型变为浮点型的问题
                  .registerTypeAdapter(new TypeToken<Map<Object, Object>>() {
                  }.getType(),
                          (JsonDeserializer<Map<Object, Object>>) (jsonElement, type, jsonDeserializationContext) -> {
                              Map<Object, Object> map = new LinkedHashMap<>();
                              JsonObject jsonObject = jsonElement.getAsJsonObject();
                              Set<Map.Entry<String, JsonElement>> entrySet = jsonObject.entrySet();
                              for (Map.Entry<String, JsonElement> entry : entrySet) {
                                  Object object = entry.getValue();
                                  if (object instanceof JsonPrimitive) {
                                      map.put(entry.getKey(), ((JsonPrimitive) object).getAsString());
                                  } else {
                                      map.put(entry.getKey(), object);
                                  }
                              }
                              return map;
                          })
                  .registerTypeAdapter(new TypeToken<List<Object>>() {
                  }.getType(), (JsonDeserializer<List<Object>>) (jsonElement, type, jsonDeserializationContext) -> {
                      List<Object> list = new LinkedList<>();
                      JsonArray jsonArray = jsonElement.getAsJsonArray();
                      for (int i = 0; i < jsonArray.size(); i++) {
                          if (jsonArray.get(i).isJsonObject()) {
                              JsonObject jsonObject = jsonArray.get(i).getAsJsonObject();
                              Set<Map.Entry<String, JsonElement>> entrySet = jsonObject.entrySet();
                              list.addAll(entrySet);
                          } else if (jsonArray.get(i).isJsonPrimitive()) {
                              list.add(jsonArray.get(i));
                          }
                      }
                      return list;
                  }).create();
      }
  
      @Override
      public String toJsonString(Object object) {
          return gson.toJson(object);
      }
  
      @Override
      public String toJsonString(Object object, String format) {
          gson = new GsonBuilder().setDateFormat(format).create();
          return gson.toJson(object);
      }
  
      @Override
      public <T> T toPojo(String json, Class<T> clazz) {
          return gson.fromJson(json, clazz);
      }
  
      @Override
      public <T> T toPojo(Map map, Class<T> clazz) {
          return gson.fromJson(gson.toJson(map), clazz);
      }
  
      @Override
      public <T> List<T> toList(String json) {
          TypeToken<List<Object>> typeToken = new TypeToken<>() {
          };
          return gson.fromJson(json, typeToken.getType());
      }
  
      @Override
      public <T> List<T> toList(String json, Class<T> clazz) {
          return gson.fromJson(json, (Type) clazz);
      }
  
      @Override
      public <T> List<T> toList(String json, Type type) {
          return gson.fromJson(json, type);
      }
  
      @Override
      public <K, V> Map<K, V> toMap(String json) {
          TypeToken<Map<Object, Object>> typeToken = new TypeToken<>() {
          };
          return gson.fromJson(json, typeToken.getType());
      }
  
      @Override
      public <K, V> Map<K, V> toMap(Object object) {
          TypeToken<Map<Object, Object>> typeToken = new TypeToken<>() {
          };
          return gson.fromJson(gson.toJson(object), typeToken.getType());
      }
  
      @Override
      public <T> T getValue(String json, String field) {
          return (T) JsonParser.parseString(json).getAsJsonObject().get(field);
      }
  
      @Override
      public boolean isJson(String json) {
          try {
              gson.fromJson(json, Object.class);
              return true;
          } catch (JsonSyntaxException ex) {
              return false;
          }
      }
  
  }
  