cfgMap.put("interceptors.a.type", builderClass);
Context ctx = new Context(cfgMap);
// setup
cp.configure(ctx);
cp.initialize();
Map<String, String> headers = Maps.newHashMap();
String badWord = "scribe";
headers.put("Bad-Words", badWord);
Event event1 = EventBuilder.withBody("test", Charsets.UTF_8, headers);