HttpTracerUtils { public static boolean isTracerKey(String key) { return key.startsWith(PREFIX); }  static boolean isTracerKey(String key); static void parseTraceKey(Map<String, String> tracerMap, String key, String value);  }
@Test public void isTracerKey() { Assert.assertTrue(HttpTracerUtils.isTracerKey(RemotingConstants.RPC_TRACE_NAME + ".xx")); Assert.assertFalse(HttpTracerUtils.isTracerKey("rpc_trace_context111.xx")); }