ConsoleLogger.java

/*
 * Copyright (C) 2008 Laurent Caillette
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation, either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.novelang.logger;

import java.io.PrintWriter;
import java.io.StringWriter;

/**
 * A simplistic implementation.
 *
 * @author Laurent Caillette
 */
public final class ConsoleLogger extends AbstractLogger {

  private ConsoleLogger() { }

  public static final ConsoleLogger INSTANCE = new ConsoleLogger() ;

  @Override
  protected void log( final Level level, final String message, final Throwable throwable ) {
    final String stackTrace ;
    if( throwable == null ) {
      stackTrace = "" ;
    } else {
      final StringWriter stringWriter = new StringWriter() ;
      throwable.printStackTrace( new PrintWriter( stringWriter ) ) ;
      stackTrace = stringWriter.toString() ;
    }
    System.out.println( "[" + level + "] " + ( message == null ? "" : message ) + stackTrace ) ;
  }

  @Override
  public String getName() {
    return getClass().getSimpleName() ;
  }

  @Override
  public boolean isTraceEnabled() {
    return false ;
  }

  @Override
  public boolean isDebugEnabled() {
    return false ;
  }

  @Override
  public boolean isInfoEnabled() {
    return true ;
  }
}