content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.langengine.core.model.fastchat.service;
  
  import com.alibaba.langengine.core.model.fastchat.completion.chat.ChatCompletionRequest;
  import com.fasterxml.jackson.core.JsonGenerator;
  import com.fasterxml.jackson.core.JsonParser;
  import com.fasterxml.jackson.databind.DeserializationContext;
  import com.fasterxml.jackson.databind.JsonDeserializer;
  import com.fasterxml.jackson.databind.JsonSerializer;
  import com.fasterxml.jackson.databind.SerializerProvider;
  
  import java.io.IOException;
  
  public class ChatCompletionRequestSerializerAndDeserializer {
  
      public static class Serializer extends JsonSerializer<ChatCompletionRequest.ChatCompletionRequestFunctionCall> {
          @Override
          public void serialize(ChatCompletionRequest.ChatCompletionRequestFunctionCall value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
              if (value == null || value.getName() == null) {
                  gen.writeNull();
              } else if ("none".equals(value.getName()) || "auto".equals(value.getName())) {
                  gen.writeString(value.getName());
              } else {
                  gen.writeStartObject();
                  gen.writeFieldName("name");
                  gen.writeString(value.getName());
                  gen.writeEndObject();
              }
          }
      }
  
      public static class Deserializer extends JsonDeserializer<ChatCompletionRequest.ChatCompletionRequestFunctionCall> {
          @Override
          public ChatCompletionRequest.ChatCompletionRequestFunctionCall deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
              if (p.getCurrentToken().isStructStart()) {
                  p.nextToken(); //key
                  p.nextToken(); //value
              }
              return new ChatCompletionRequest.ChatCompletionRequestFunctionCall(p.getValueAsString());
          }
      }
  }
  