code: public static HttpLogFilter defaultFilter() {
      return new HttpLogFilter() { // this is much prettier with 1.8 lambdas
        @Override public LogFilterLevel filter(RequestUri uri, Properties header, Properties parms) {
          // static web content
          String url = uri.getUrl();
          if (url.endsWith(".css") ||
              url.endsWith(".js")  || 
              url.endsWith(".png") || 
              url.endsWith(".ico")
          ) {
            return LogFilterLevel.DO_NOT_LOG;
          }
          // endpoints that might take sensitive parameters (passwords and other credentials)
          String[] path = uri.getPath();
          if (path[2].equals("PersistS3") ||
              path[2].equals("ImportSQLTable") ||
              path[2].equals("DecryptionSetup")
          ) {
            return LogFilterLevel.URL_ONLY;
          }
          // endpoints that are called very frequently AND DON'T accept any sensitive information in parameters
          if (path[2].equals("Cloud") ||
              path[2].equals("Jobs") && uri.isGetMethod() ||
              path[2].equals("Log") ||
              path[2].equals("Progress") ||
              path[2].equals("Typeahead") ||
              path[2].equals("WaterMeterCpuTicks")
          ) {
            return LogFilterLevel.DO_NOT_LOG;
          }
          return LogFilterLevel.LOG;
        }
      };
    }
docs: Provide the default filters for H2O's HTTP logging.
  @return an array of HttpLogFilter instances