File: DebugLog.java

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/*
 * This program is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 * or from the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 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 Lesser General Public License for more details.
 *
 * Copyright (c) 2007 - 2009 Pentaho Corporation and Contributors.  All rights reserved.
 */

package org.pentaho.reporting.libraries.base.util;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * This class provides static log messages for on-going bug-hunting efforts. This removes the need to create
 * temporary log-instances that get removed later anyway.
 *
 * @author Thomas Morgner
 */
public final class DebugLog
{
  /** A logger. */
  private static final Log logger = LogFactory.getLog(DebugLog.class);

  /**
   * Logs a message using the debug-logger. By channeling all temporary log messages through this method,
   * we can later easily identify the debugger log entries so that we can remove them.
   *
   * @param message the message.
   */
  public static void log(final Object message)
  {
    logger.info(message);
  }

  /**
   * Logs a message using the debug-logger. By channeling all temporary log messages through this method,
   * we can later easily identify the debugger log entries so that we can remove them.
   *
   * @param message the message.
   * @param t the throwable to be logged.
   */
  public static void log(final Object message, final Throwable t)
  {
    logger.info(message, t);
  }

  /**
   * Logs a HERE message. This is only useful as some sort of cheap-and-dirty debug-point entry.
   */
  public static void logHere()
  {
    logger.info("HERE: Debug point reached");
  }

  /**
   * Logs a HERE message along with a stack-trace to identify how we got to this point.
   */
  public static void logHereWE()
  {
    //noinspection ThrowableInstanceNeverThrown
    logger.info("HERE: Debug point reached", new Exception("Debug-Point reached"));
  }

  /**
   * Private constructor prevents object creation.
   */
  private DebugLog()
  {
  }
}