TqlSession.java 文件源码

/**
 * Loads the embedded logging configuration (from the JAR file).
 */
private void loadLoggingConfig() {
  // get a URL from the classloader for the logging configuration
  URL log4jConfigUrl = ClassLoader.getSystemResource(LOG4J_CONFIG_PATH);

  // if we didn't get a URL, tell the user that something went wrong
  if (log4jConfigUrl == null) {
    System.err.println("Unable to find logging configuration file in JAR " +
        "with " + LOG4J_CONFIG_PATH + ", reverting to default configuration.");
    BasicConfigurator.configure();
  } else {
    try {
      // configure the logging service
      DOMConfigurator.configure(log4jConfigUrl);
      log.info("Using logging configuration from " + log4jConfigUrl);
    } catch (FactoryConfigurationError e) {
      System.err.println("Unable to configure logging service");
    }
  }
}