package cc.mrbird.febs.ai.service.impl;
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import cc.mrbird.febs.ai.entity.AiProductRole;
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import cc.mrbird.febs.ai.req.ai.AiRequest;
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import cc.mrbird.febs.ai.res.ai.AiResponse;
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import cc.mrbird.febs.ai.res.ai.Report;
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import cc.mrbird.febs.ai.service.AiProductRoleService;
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import cc.mrbird.febs.ai.service.AiService;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.volcengine.ark.runtime.model.completion.chat.*;
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import com.volcengine.ark.runtime.service.ArkService;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import okhttp3.ConnectionPool;
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import okhttp3.Dispatcher;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Service;
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import org.springframework.util.StringUtils;
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import javax.annotation.PostConstruct;
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import javax.annotation.PreDestroy;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.TimeUnit;
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import java.util.function.Consumer;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.stream.Collectors;
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/**
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* @author Administrator
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*/
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@Slf4j
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@Service
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@RequiredArgsConstructor
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public class AiServiceImpl implements AiService {
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private static final String CODE_SUCCESS = "200";
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private static final String CODE_GOING_ON = "199";
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private static final String CODE_NOT_FOUND = "201";
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private static final String CODE_ERROR = "500";
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private static final String SCHEMA_JSON = "{\n" +
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" \"radar_data\": {\n" +
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" \"problem_understanding\": \"object\",\n" +
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" \"fluency\": \"object\",\n" +
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" \"principle_adherence\": \"object\",\n" +
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" \"logicality\": \"object\",\n" +
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" \"knowledge_mastery\": \"object\"\n" +
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" },\n" +
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" \"evaluation\": {\n" +
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" \"highlight\": \"object\",\n" +
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" \"suggestion\": \"object\",\n" +
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" \"reference_answer\": \"object\",\n" +
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" \"key_knowledge\": \"object\"\n" +
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" }\n" +
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" }";
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private final AiProductRoleService aiProductRoleService;
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private final ObjectMapper objectMapper;
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@Value("${ai.service.ak}")
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private String ak;
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@Value("${ai.service.sk}")
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private String sk;
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@Value("${ai.service.base-url}")
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private String baseUrl;
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private ArkService service;
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@PostConstruct
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public void init() {
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// 增加连接池大小和存活时间
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ConnectionPool connectionPool = new ConnectionPool(32, 60, TimeUnit.SECONDS);
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Dispatcher dispatcher = new Dispatcher();
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// 增加并发请求数量
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dispatcher.setMaxRequests(128);
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dispatcher.setMaxRequestsPerHost(32);
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this.service = ArkService.builder()
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.dispatcher(dispatcher)
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.connectionPool(connectionPool)
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.baseUrl(baseUrl)
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.ak(ak)
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.sk(sk)
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.build();
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}
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@PreDestroy
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public void destroy() {
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if (service != null) {
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service.shutdownExecutor();
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}
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}
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@Override
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public AiResponse start(String productRoleId, String content) {
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if (!StringUtils.hasText(productRoleId)) {
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log.warn("productRoleId 不能为空");
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return buildErrorResponse(CODE_NOT_FOUND, "AI陪练不存在");
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}
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AiProductRole aiProductRole = aiProductRoleService.getById(productRoleId);
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if (aiProductRole == null) {
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log.warn("未找到对应的角色配置，productRoleId: {}", productRoleId);
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return buildErrorResponse(CODE_NOT_FOUND, "AI陪练不存在");
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}
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String promptTemplate = aiProductRole.getPromptTemplate();
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String linkId = aiProductRole.getLinkId();
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String jsonTemplate = aiProductRole.getJsonTemplate();
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if (
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!StringUtils.hasText(promptTemplate)
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|| !StringUtils.hasText(linkId)
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|| !StringUtils.hasText(jsonTemplate)
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) {
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log.warn("角色配置不完整，promptTemplate 或 linkId 或 jsonTemplate为空，productRoleId: {}", productRoleId);
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return buildErrorResponse(CODE_ERROR, "角色配置不完整");
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}
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AiRequest aiRequest = new AiRequest();
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aiRequest.setPromptTemplate(promptTemplate);
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aiRequest.setJsonTemplate(jsonTemplate);
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aiRequest.setLinkId(linkId);
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aiRequest.setContent(content);
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return this.question(aiRequest);
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}
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@Override
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public AiResponse question(AiRequest aiRequest) {
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String promptTemplate = aiRequest.getPromptTemplate();
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String linkId = aiRequest.getLinkId();
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String content = aiRequest.getContent();
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String jsonTemplate = aiRequest.getJsonTemplate();
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if (
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!StringUtils.hasText(promptTemplate)
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|| !StringUtils.hasText(linkId)
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|| !StringUtils.hasText(content)
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|| !StringUtils.hasText(jsonTemplate)
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) {
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log.warn("请求参数不完整，promptTemplate: {}, linkId: {}, content: {}, jsonTemplate: {}", promptTemplate, linkId, content, jsonTemplate);
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return buildErrorResponse(CODE_ERROR, "请求参数不完整");
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}
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final List<ChatMessage> messages = new ArrayList<>();
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final ChatMessage systemMessage = ChatMessage.builder().role(ChatMessageRole.SYSTEM).content(promptTemplate).build();
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final ChatMessage userMessage = ChatMessage.builder().role(ChatMessageRole.USER).content(content).build();
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messages.add(systemMessage);
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messages.add(userMessage);
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try {
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JsonNode schemaNode = objectMapper.readTree(jsonTemplate);
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ChatCompletionRequest.ChatCompletionRequestResponseFormat responseFormat = new ChatCompletionRequest.ChatCompletionRequestResponseFormat(
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"json_schema",
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new ResponseFormatJSONSchemaJSONSchemaParam(
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"ai_response",
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"json数据响应",
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schemaNode,
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true
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)
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);
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ChatCompletionRequest chatCompletionRequest = ChatCompletionRequest.builder()
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.model(linkId)
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.messages(messages)
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.stream(false)
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.responseFormat(responseFormat)
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.temperature(0.7) // 降低温度参数，提高确定性，可能提升速度
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.topP(0.9) // 调整topP参数
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.maxTokens(2048) // 减少最大token数
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.frequencyPenalty(0.0)
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.build();
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List<ChatCompletionChoice> choices = service.createChatCompletion(chatCompletionRequest).getChoices();
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String result = choices.stream()
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.map(choice -> choice.getMessage().getContent())
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.filter(contentObj -> contentObj != null)
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.map(Object::toString)
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.collect(Collectors.joining());
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Report report = this.extractReportData(result);
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return buildSuccessResponse(report, result);
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} catch (JsonProcessingException e) {
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log.error("初始化AI服务失败，JSON格式化输出初始化失败", e);
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return buildErrorResponse(CODE_ERROR, "AI服务调用失败");
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} catch (Exception e) {
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log.error("调用AI服务失败，modelId: {}", linkId, e);
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return buildErrorResponse(CODE_ERROR, "AI服务调用失败");
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}
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}
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@Override
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public void streamQuestion(AiRequest aiRequest, Consumer<AiResponse> callback) {
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String promptTemplate = aiRequest.getPromptTemplate();
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String linkId = aiRequest.getLinkId();
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String content = aiRequest.getContent();
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if (!StringUtils.hasText(promptTemplate) || !StringUtils.hasText(linkId) || !StringUtils.hasText(content)) {
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log.warn("请求参数不完整，promptTemplate: {}, linkId: {}, content: {}", promptTemplate, linkId, content);
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}
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final List<ChatMessage> messages = new ArrayList<>();
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final ChatMessage systemMessage = ChatMessage.builder().role(ChatMessageRole.SYSTEM).content(promptTemplate).build();
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final ChatMessage userMessage = ChatMessage.builder().role(ChatMessageRole.USER).content(content).build();
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messages.add(systemMessage);
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messages.add(userMessage);
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try {
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JsonNode schemaNode = objectMapper.readTree(SCHEMA_JSON);
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ChatCompletionRequest.ChatCompletionRequestResponseFormat responseFormat = new ChatCompletionRequest.ChatCompletionRequestResponseFormat(
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"json_schema",
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new ResponseFormatJSONSchemaJSONSchemaParam(
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"ai_response",
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"json数据响应",
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schemaNode,
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true
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)
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);
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ChatCompletionRequest chatCompletionRequest = ChatCompletionRequest.builder()
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.model(linkId)
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.messages(messages)
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.stream(true) // 启用流式响应
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.responseFormat(responseFormat)
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.temperature(0.7)
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.topP(0.9)
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.maxTokens(2048)
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.build();
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service.streamChatCompletion(chatCompletionRequest)
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.doOnError(Throwable::printStackTrace) // 处理错误
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.blockingForEach(response -> {
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AiResponse partialResponse = new AiResponse();
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if (response.getChoices() != null && !response.getChoices().isEmpty()) {
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String responseStr = String.valueOf(response.getChoices().get(0).getMessage().getContent());
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if (responseStr != null) {
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// 构造部分响应并回调
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partialResponse = buildGOINGONResponse(responseStr);
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}
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}else{
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partialResponse = buildPartialResponse("成功");
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}
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callback.accept(partialResponse);
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});
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// service.streamChatCompletion(chatCompletionRequest)
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// .doOnError(throwable -> {
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// log.error("流式调用AI服务失败", throwable);
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// callback.accept(buildErrorResponse(CODE_ERROR, "AI服务调用失败"));
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// })
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// .subscribe(chatCompletionChunk -> {
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// // 处理每个数据块
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// Object chunkContent = chatCompletionChunk.getChoices().get(0).getMessage().getContent();
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// // 构造部分响应并回调
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// AiResponse partialResponse = buildGOINGONResponse(chunkContent);
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// callback.accept(partialResponse);
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// });
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} catch (Exception e) {
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log.error("调用AI服务失败", e);
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callback.accept(buildErrorResponse(CODE_ERROR, "AI服务调用失败"));
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}
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}
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private AiResponse buildGOINGONResponse(Object chunkContent) {
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AiResponse response = new AiResponse();
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response.setCode(CODE_GOING_ON);
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response.setDescription("成功");
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response.setResContext(chunkContent.toString());
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return response;
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}
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private AiResponse buildPartialResponse(Object chunkContent) {
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AiResponse response = new AiResponse();
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response.setCode(CODE_SUCCESS);
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response.setDescription("成功");
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response.setResContext(chunkContent.toString());
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return response;
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}
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private static final Pattern JSON_PATTERN = Pattern.compile(
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"<\\|FunctionCallBegin\\|>(.*?)<\\|FunctionCallEnd\\|>",
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Pattern.DOTALL
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);
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@Override
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public Report extractReportData(String modelOutput) {
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Matcher matcher = JSON_PATTERN.matcher(modelOutput);
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if (!matcher.find()) {
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log.warn("未匹配到FunctionCall内容，原始输出长度: {}", modelOutput.length());
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return null;
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}
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String jsonContent = matcher.group(1);
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log.debug("提取到的JSON内容长度: {}", jsonContent.length());
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try {
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return objectMapper.readValue(jsonContent, Report.class);
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} catch (JsonProcessingException e) {
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log.error("JSON解析失败，原始内容长度: {}", jsonContent.length(), e);
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Report repairedReport = tryRepairTruncatedJson(jsonContent);
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if (repairedReport != null) {
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log.info("成功修复截断的JSON");
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return repairedReport;
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}
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return null;
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}
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}
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private Report tryRepairTruncatedJson(String truncatedJson) {
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String[] repairAttempts = {
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truncatedJson + "\"}}}",
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truncatedJson + "}}}",
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truncatedJson + "}}"
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};
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for (String attempt : repairAttempts) {
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try {
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return objectMapper.readValue(attempt, Report.class);
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} catch (JsonProcessingException e) {
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log.debug("修复尝试失败: {}", attempt);
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continue;
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}
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}
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log.warn("无法修复截断的JSON，原始内容长度: {}", truncatedJson.length());
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return null;
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}
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private AiResponse buildErrorResponse(String code, String description) {
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AiResponse response = new AiResponse();
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response.setCode(code);
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response.setDescription(description);
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return response;
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}
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private AiResponse buildSuccessResponse(String result) {
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AiResponse response = new AiResponse();
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response.setCode(CODE_SUCCESS);
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response.setDescription("成功");
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response.setResContext(result);
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return response;
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}
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private AiResponse buildSuccessResponse(Report report, String result) {
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AiResponse response = new AiResponse();
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response.setCode(CODE_SUCCESS);
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response.setDescription("成功");
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response.setResContext(result);
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response.setReport(report);
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return response;
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}
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}
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