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package com.unfbx.chatgptsteamoutput.listener;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.unfbx.chatgpt.entity.chat.ChatCompletionResponse;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import okhttp3.Response;
import okhttp3.ResponseBody;
import okhttp3.sse.EventSource;
import okhttp3.sse.EventSourceListener;
import javax.websocket.Session;
import java.util.Objects;
/**
* 描述：OpenAI流式输出Socket接收
*
* @author https:www.unfbx.com
* @date 2023-03-23
*/
@Slf4j
public class OpenAIWebSocketEventSourceListener extends EventSourceListener {
private Session session;
public OpenAIWebSocketEventSourceListener(Session session) {
this.session = session;
}
/**
* {@inheritDoc}
*/
@Override
public void onOpen(EventSource eventSource, Response response) {
log.info("OpenAI建立sse连接...");
}
/**
* {@inheritDoc}
*/
@SneakyThrows
@Override
public void onEvent(EventSource eventSource, String id, String type, String data) {
log.info("OpenAI返回数据：{}", data);
if (data.equals("[DONE]")) {
log.info("OpenAI返回数据结束了");
session.getBasicRemote().sendText("[DONE]");
return;
}
ObjectMapper mapper = new ObjectMapper();
ChatCompletionResponse completionResponse = mapper.readValue(data, ChatCompletionResponse.class); // 读取Json
String delta = mapper.writeValueAsString(completionResponse.getChoices().get(0).getDelta());
session.getBasicRemote().sendText(delta);
}
@Override
public void onClosed(EventSource eventSource) {
log.info("OpenAI关闭sse连接...");
}
@SneakyThrows
@Override
public void onFailure(EventSource eventSource, Throwable t, Response response) {
if (Objects.isNull(response)) {
return;
}
ResponseBody body = response.body();
if (Objects.nonNull(body)) {
log.error("OpenAI sse连接异常data：{}，异常：{}", body.string(), t);
} else {
log.error("OpenAI sse连接异常data：{}，异常：{}", response, t);
}
eventSource.cancel();
}
}