package com.kidgrow.zuul.filter;
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import cn.hutool.core.util.IdUtil;
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import com.kidgrow.common.constant.CommonConstant;
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import com.kidgrow.log.properties.TraceProperties;
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import com.netflix.zuul.ZuulFilter;
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import com.netflix.zuul.context.RequestContext;
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import org.slf4j.MDC;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.cloud.netflix.zuul.filters.support.FilterConstants;
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import org.springframework.stereotype.Component;
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import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.FORM_BODY_WRAPPER_FILTER_ORDER;
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/**
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* 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
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*
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* @Description: 生成日志链路追踪id，并传入header中<br>
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* @Project: <br>
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* @CreateDate: Created in 2020/2/21 13:34 <br>
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* @Author: <a href="4345453@kidgrow.com">liuke</a>
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*/
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@Component
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public class TraceFilter extends ZuulFilter {
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@Autowired
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private TraceProperties traceProperties;
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@Override
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public String filterType() {
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return FilterConstants.PRE_TYPE;
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}
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@Override
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public int filterOrder() {
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return FORM_BODY_WRAPPER_FILTER_ORDER - 1;
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}
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@Override
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public boolean shouldFilter() {
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//根据配置控制是否开启过滤器
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return traceProperties.getEnable();
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}
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@Override
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public Object run() {
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//链路追踪id
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String traceId = IdUtil.fastSimpleUUID();
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MDC.put(CommonConstant.LOG_TRACE_ID, traceId);
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RequestContext ctx = RequestContext.getCurrentContext();
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ctx.addZuulRequestHeader(CommonConstant.TRACE_ID_HEADER, traceId);
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return null;
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}
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}
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