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.memory;
  
  import com.alibaba.langengine.core.messages.*;
  import lombok.Data;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * ChatMessageHistory
   *
   * @author xiaoxuan.lp
   */
  @Data
  public class ChatMessageHistory extends BaseChatMessageHistory {
  
      private List<BaseMessage> rawMessages = new ArrayList<>();
  
      @Override
      protected List<BaseMessage> getRawMessages(String sessionId) {
          return rawMessages;
      }
  
      @Override
      public void addSystemMessage(String sessionId, String message) {
          SystemMessage systemMessage = new SystemMessage();
          systemMessage.setContent(message);
          getMessages().add(systemMessage);
      }
  
      @Override
      public void addUserMessage(String sessionId, String message) {
          HumanMessage humanMessage = new HumanMessage();
          humanMessage.setContent(message);
          getMessages().add(humanMessage);
      }
  
      @Override
      public void addAIMessage(String sessionId, String message) {
          AIMessage aiMessage = new AIMessage();
          aiMessage.setContent(message);
          getMessages().add(aiMessage);
      }
  
      @Override
      public void addToolMessage(String sessionId, String message) {
          ToolMessage toolMessage = new ToolMessage();
          toolMessage.setContent(message);
          getMessages().add(toolMessage);
      }
  
      @Override
      public void clear(String sessionId) {
          getMessages().clear();
      }
  }
  