Slf4jAdapter.java

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package etm.core.util;

import org.slf4j.ILoggerFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Adapter to slf4j. See patch
 * https://sourceforge.net/tracker/?func=detail&aid=3182135&group_id=109626&atid=654002
 *
 * @author Juergen Hermann
 * @since 1.3.0
 */
class Slf4jAdapter implements LogAdapter {
  static final boolean DEBUG = false;
  private Logger log;

  public Slf4jAdapter(Class aClazz) {
    log = LoggerFactory.getLogger(aClazz);
  }

  public void debug(String message) {
    log.debug(message);
  }

  public void info(String message) {
    log.info(message);
  }

  public void warn(String message) {
    log.warn(message);
  }

  public void warn(String message, Throwable t) {
    log.warn(message, t);
  }

  public void error(String message, Throwable t) {
    log.error(message, t);
  }

  public void fatal(String message, Throwable t) {
    log.error(message, t);
  }

  public static boolean isConfigured() {
    // Make sure there is a binding on the class path
    try {
      Class.forName("org.slf4j.impl.StaticLoggerBinder");
    } catch (ClassNotFoundException e) {
      if (DEBUG) {
        System.err.println("JETM: No SLF4J binding found (" + e + ")");
      }
      return false;
    }
    if (DEBUG) {
      System.err.println("JETM: SLF4J binding OK");
    }

    // Also ensure we get a valid root logger
    ILoggerFactory lf = LoggerFactory.getILoggerFactory();
    Logger root = lf.getLogger(Logger.ROOT_LOGGER_NAME);
    if (DEBUG) {
      System.err.println("JETM: SLF4J root logger is " + root + " of type " + root.getClass().getCanonicalName());
    }

    return null != root;
  }
}