Package brave.http

Class HttpTracing

  • public class HttpTracing
extends Object

    • Method Detail

      • create

        public static HttpTracing create​(brave.Tracing tracing)

      • tracing

        public brave.Tracing tracing()

      • serverName

        public String serverName()
        Used by http clients to indicate the name of the destination service. Defaults to "", which will not show in the zipkin UI or end up in the dependency graph.

        When present, a link from Tracing.Builder.localServiceName(String) to this name will increment for each traced client call.

        As this is endpoint-specific, it is typical to create a scoped instance of HttpTracing to assign this value. For example: 

        
 github = TracingHttpClientBuilder.create(httpTracing.serverName("github"));
        See Also:
        HttpClientAdapter.parseServerIpAndPort(Object, Endpoint.Builder), Span.remoteEndpoint(Endpoint)

      • clientOf

        public HttpTracing clientOf​(String serverName)
        Scopes this component for a client of the indicated server.
        See Also:
        serverName()

      • clientSampler

        public HttpSampler clientSampler()
        Returns an overriding sampling decision for a new trace. Defaults to ignore the request and use the trace ID instead.

        This decision happens when a trace was not yet started in process. For example, you may be making an http request as a part of booting your application. You may want to opt-out of tracing client requests that did not originate from a server request.

      • serverSampler

        public HttpSampler serverSampler()
        Returns an overriding sampling decision for a new trace. Defaults to ignore the request and use the trace ID instead.

        This decision happens when trace IDs were not in headers, or a sampling decision has not yet been made. For example, if a trace is already in progress, this function is not called. You can implement this to skip paths that you never want to trace.