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.plain_text;
  
  import com.alibaba.cloud.ai.graph.OverAllState;
  import com.alibaba.cloud.ai.graph.serializer.StateSerializer;
  import com.alibaba.cloud.ai.graph.state.AgentStateFactory;
  
  import java.io.BufferedReader;
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutputStream;
  import java.io.Reader;
  
  public abstract class PlainTextStateSerializer extends StateSerializer {
  
  	protected PlainTextStateSerializer(AgentStateFactory<OverAllState> stateFactory) {
  		super(stateFactory);
  	}
  
  	@Override
  	public String contentType() {
  		return "plain/text";
  	}
  
  	@SuppressWarnings("unchecked")
  	public Class<OverAllState> getStateType() {
  		return OverAllState.class;
  	}
  
  	public OverAllState read(String data) throws IOException, ClassNotFoundException {
  		ByteArrayOutputStream bytesStream = new ByteArrayOutputStream();
  
  		try (ObjectOutputStream out = new ObjectOutputStream(bytesStream)) {
  			out.writeUTF(data);
  			out.flush();
  		}
  
  		try (ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(bytesStream.toByteArray()))) {
  			return read(in);
  		}
  
  	}
  
  	public OverAllState read(Reader reader) throws IOException, ClassNotFoundException {
  		StringBuilder sb = new StringBuilder();
  		try (BufferedReader bufferedReader = new BufferedReader(reader)) {
  			String line;
  			while ((line = bufferedReader.readLine()) != null) {
  				sb.append(line).append(System.lineSeparator());
  			}
  		}
  		return read(sb.toString());
  	}
  
  }
  