SpringCloud/spring-cloud-sleuth
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buildmaster
2019-07-09 08:07:00 +00:00
parent 15d45570ad
commit 475352f7d8
1 changed files with 43 additions and 2 deletions
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spring-cloud-sleuth.html
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@@ -2624,7 +2624,22 @@ an example of usage of <code>SkipPatternProvider</code> inside a server side, <c
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<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Configuration
class Config {
Unresolved directive in spring-cloud-sleuth.adoc - include::../../../spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/web/TraceFilterWebIntegrationTests.java[tags=custom_server_sampler,indent=2]
@Bean(name = ServerSampler.NAME)
HttpSampler myHttpSampler(SkipPatternProvider provider) {
Pattern pattern = provider.skipPattern();
return new HttpSampler() {
@Override
public &lt;Req&gt; Boolean trySample(HttpAdapter&lt;Req, ?&gt; adapter, Req request) {
String url = adapter.path(request);
boolean shouldSkip = pattern.matcher(url).matches();
if (shouldSkip) {
return false;
}
return null;
}
};
}
}</code></pre>
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@@ -2640,7 +2655,33 @@ You can customize the tags or modify the response headers by registering your ow
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<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">Unresolved directive in spring-cloud-sleuth.adoc - include::../../..//spring-cloud-sleuth-core/src/test/java/org/springframework/cloud/sleuth/instrument/web/TraceFilterIntegrationTests.java[tags=response_headers,indent=0]</code></pre>
<pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">@Component
@Order(TraceWebServletAutoConfiguration.TRACING_FILTER_ORDER + 1)
class MyFilter extends GenericFilterBean {
private final Tracer tracer;
MyFilter(Tracer tracer) {
this.tracer = tracer;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
Span currentSpan = this.tracer.currentSpan();
if (currentSpan == null) {
chain.doFilter(request, response);
return;
}
// for readability we're returning trace id in a hex form
((HttpServletResponse) response).addHeader("ZIPKIN-TRACE-ID",
currentSpan.context().traceIdString());
// we can also add some custom tags
currentSpan.tag("custom", "tag");
chain.doFilter(request, response);
}
}</code></pre>
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