code: private String getStatement(final String className, final String methodName) {
      if (null == properties || (null == className && null == methodName)) {
        return null;
      }
      String statement = this.properties.getProperty(className + METHOD_TOKEN + methodName);
      if (null == statement) {
        statement = this.properties.getProperty(className + METHOD_TOKEN);
      }
      return null == statement ? this.properties.getProperty(METHOD_TOKEN + methodName) : statement;
    }
docs: TODO: find better implementation