不再产生默认流水号,以skywalking为准,删除多余的拦截器

tinyWolf
1 parent 3d2961fa
Showing 3 changed files with 1 additions and 173 deletions
src/main/java/cn/iocoder/dashboard/framework/tracer/core/ITrace.java
src/main/java/cn/iocoder/dashboard/framework/tracer/core/util/TracerUtils.java
src/main/java/cn/iocoder/dashboard/framework/tracer/filter/ServletTraceFilter.java
-package cn.iocoder.dashboard.framework.tracer.core;
-
-/**
- * 用于扩展获取traceId的场景,需要装载到Spring bean容器中.
- *
- * @author 麻薯
- */
-public interface ITrace {
-
-    /**
-     * 用于接入三方traceId
-     *
-     * @return traceId
-     */
-    String getTraceId();
-}
 package cn.iocoder.dashboard.framework.tracer.core.util;
-import cn.hutool.core.util.StrUtil;
-import cn.hutool.extra.spring.SpringUtil;
-import cn.iocoder.dashboard.framework.tracer.core.ITrace;
-import io.netty.util.concurrent.FastThreadLocal;
 import org.apache.skywalking.apm.toolkit.trace.TraceContext;
 import java.util.UUID;
@@ -16,36 +12,6 @@ import java.util.UUID;
 public class TracerUtils {
     /**
-     * 维护请求线程对应的TraceId
-     */
-    private final static FastThreadLocal<String> traceIdMap = new FastThreadLocal<>();
-
-    /**
-     * 保存链路流水号
-     *
-     * @param traceId 链路流水号
-     */
-    public static void saveThreadTraceId(String traceId) {
-        traceIdMap.set(traceId);
-    }
-
-    /**
-     * 根据线程获取链路流水号
-     *
-     * @return 链路流水号
-     */
-    public static String getThreadTraceId() {
-        return traceIdMap.get();
-    }
-
-    /**
-     * 根据线程删除链路流水
-     */
-    public static void deleteThreadTraceId() {
-        traceIdMap.remove();
-    }
-
-    /**
      * 私有化构造方法
      */
     private TracerUtils() {
@@ -54,71 +20,13 @@ public class TracerUtils {
     /**
      * 获得链路追踪编号
      * <p>
-     * 一般来说，通过链路追踪编号，可以将访问日志，错误日志，链路追踪日志，logger 打印日志等，结合在一起，从而进行排错。
+     * 直接返回skywalking 的TraceId 如果不存在的话为空字符串""
      * <p>
-     * 默认情况下，我们使用 Apache SkyWalking 的 traceId 作为链路追踪编号。当然，可能会存在并未引入 Skywalking 的情况，此时使用 UUID 。
-     * 方法获取顺序: skywalking - > map -> 扩展接口 -> default
-     * 项目整体获取traceId的优先级 skywalking > 自定义实现接口 > 默认
-     * map中的traceId 当且仅当其他情况为产生时才会出现.
      *
      * @return 链路追踪编号
      */
     public static String getTraceId() {
-        String traceId;
-        // 通过 SkyWalking 获取链路编号
-        try {
-            traceId = TraceContext.traceId();
-            if (StrUtil.isNotBlank(traceId)) {
-                return traceId;
-            }
-        } catch (Throwable ignore) {
-        }
-        // 尝试从map中获取
-        traceId = traceIdMap.get();
-        if (StrUtil.isNotBlank(traceId)) {
-            return traceId;
-        }
-        // 通过自定义扩展的tracer产生traceId, 在Spring容器加载完成前会获取不到对应的Bean
-        ITrace tracer = null;
-        try {
-            tracer = getTracer();
-        } catch (Throwable ignore) {
-        }
-        if (null != tracer) {
-            try {
-                return tracer.getTraceId();
-            } catch (Throwable ignored) {
-            }
-        }
-        // TODO 芋艿 多次调用会问题
-
-        return defaultTraceId();
-    }
-
-    /**
-     * 仅仅获取Skywalking 中的traceId, 若无skywalking,则会返回""
-     *
-     * @return skywalking 的traceId
-     */
-    public static String getSkywalkingTraceId() {
         return TraceContext.traceId();
     }
-    /**
-     * 从Spring 容器中获取 ITrace 类,返回可以为null
-     *
-     * @return ITrace
-     */
-    private static ITrace getTracer() {
-        return SpringUtil.getBean(ITrace.class);
-    }
-
-    /**
-     * 默认生成TraceId规则为UUID
-     *
-     * @return UUID
-     */
-    private static String defaultTraceId() {
-        return "UUID:" + UUID.randomUUID().toString();
-    }
 }
-package cn.iocoder.dashboard.framework.tracer.filter;
-
-import cn.hutool.core.util.StrUtil;
-import cn.iocoder.dashboard.framework.tracer.core.util.TracerUtils;
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.lang.Nullable;
-import org.springframework.stereotype.Component;
-import org.springframework.web.servlet.HandlerInterceptor;
-
-import javax.servlet.*;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import java.io.IOException;
-
-/**
- * 对Spring Mvc 的请求拦截, 添加traceId.
- *
- * @author mashu
- */
-
-@Slf4j
-@Component
-public class ServletTraceFilter implements Filter {
-
-    @Value("${cn.iocoder.tracer.name:global-trace-id}")
-    private String traceIdName;
-
-    @Override
-    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
-        HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
-        HttpServletResponse httpServletResponse = (HttpServletResponse) servletResponse;
-        try {
-            // 请求中traceId
-            String reqTraceId = (String)httpServletRequest.getHeader(traceIdName);
-            // skywalking中的traceId
-            String skywalkingTraceId = TracerUtils.getSkywalkingTraceId();
-            String traceId ;
-            if (null == reqTraceId && StrUtil.isBlank(skywalkingTraceId)) {
-                // 两者皆空,添加默认的.
-                traceId = TracerUtils.getTraceId();
-                httpServletResponse.setHeader(traceIdName, traceId);
-            } else if (null == reqTraceId && StrUtil.isNotBlank(skywalkingTraceId)){
-                // 若请求空,则添加,为没有skywalking的系统添加一个TraceId
-                traceId = skywalkingTraceId;
-                httpServletResponse.setHeader(traceIdName, traceId);
-            } else if (null != reqTraceId && StrUtil.isBlank(skywalkingTraceId)) {
-                // 请求非空, skywalking为空
-                traceId = reqTraceId;
-            } else {
-                // 两者皆非空,不动请求头
-                traceId = skywalkingTraceId;
-            }
-            TracerUtils.saveThreadTraceId(traceId);
-            log.debug("请求进入,添加traceId[{}]", traceId);
-
-            filterChain.doFilter(httpServletRequest, httpServletResponse);
-        } finally {
-            // 请求结束,删除本地的链路流水号
-            log.debug("请求结束,删除traceId[{}]", TracerUtils.getTraceId());
-            TracerUtils.deleteThreadTraceId();
-        }
-    }
-}