anchor.diff:  You can use wildcards in the service mapping. To match all outgoing
   calls to the same HTTP server you can do:
   
  -------------------------------------------------------------
  +----
   zipkin.addClientServiceMapping("http:someserver*", "audit");
  -------------------------------------------------------------
  +----
   
   [[camel-zipkin-Mappingrules]]
  -Mapping rules
  -+++++++++++++
  +=== Mapping rules
   
   The service name mapping for server occurs using the following rules
   
  
positive.code: 5.  No service name was found, the exchange is not traced by zipkin
  
  [[camel-zipkin-Noclientorservermappings]]
  No client or server mappings
  ++++++++++++++++++++++++++++
  
  If there has been no configuration of client or server service mappings,
  CamelZipkin runs in a fallback mode, and uses endpoint
  
negative.code: payloads. You can limit the size by configuring the
  link:how-do-i-set-the-max-chars-when-debug-logging-messages-in-camel.html[max
  debug log size].  
  |===
  
  [[camel-zipkin-Example]]
  === Example
  
  To enable camel-zipkin you need to configure first
  
  [source,java]
  ----
  ZipkinTracer zipkin = new ZipkinTracer();
  // Configure a reporter, which controls how often spans are sent
  //   (the dependency is io.zipkin.reporter2:zipkin-sender-okhttp3)
  