content: /*
   * Copyright 2024-2025 the original author or authors.
   *
   * 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
   *
   *      https://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.cloud.ai.graph.serializer.std;
  
  import org.springframework.ai.chat.messages.AssistantMessage;
  
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectOutput;
  import java.util.List;
  import java.util.Map;
  
  class AssistantMessageSerializer implements NullableObjectSerializer<AssistantMessage> {
  
  	@Override
  	public void write(AssistantMessage object, ObjectOutput out) throws IOException {
  		writeNullableUTF(object.getText(), out);
  		out.writeObject(object.getMetadata());
  		writeNullableObject(object.getToolCalls(), out);
  		// out.writeObject(object.getMedia());
  	}
  
  	@Override
  	@SuppressWarnings("unchecked")
  	public AssistantMessage read(ObjectInput in) throws IOException, ClassNotFoundException {
  		var text = readNullableUTF(in).orElse(null);
  		var metadata = (Map<String, Object>) in.readObject();
  		var toolCalls = (List<AssistantMessage.ToolCall>) readNullableObject(in).orElseGet(List::of);
  		return new AssistantMessage(text, metadata, toolCalls);
  	}
  
  }
  