memoryusagemessage.java

来自「JfreeChart 常用图表例子」· Java 代码 · 共 72 行

/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
 * 
 * Project Info:  http://www.jfree.org/jcommon/index.html
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 * 
 * -----------------------
 * MemoryUsageMessage.java
 * -----------------------
 * (C) Copyright 2004, by Object Refinery Limited.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * $Id: MemoryUsageMessage.java,v 1.2 2005/06/01 14:12:28 taqua Exp $
 *
 * Changes
 * -------
 * 15-Jul-2004 : Added JCommon header (DG);
 *
 */

package org.jfree.base.log;

/**
 * A helper class to print memory usage message if needed.
 *
 * @author Thomas Morgner
 */
public class MemoryUsageMessage {

    /** The message. */
    private final String message;

    /**
     * Creates a new message.
     *
     * @param message  the message.
     */
    public MemoryUsageMessage(final String message) {
        this.message = message;
    }

    /**
     * Returns a string representation of the message (useful for debugging).
     *
     * @return the string.
     */
    public String toString() {
        return this.message + "Free: " + Runtime.getRuntime().freeMemory() + "; "
            + "Total: " + Runtime.getRuntime().totalMemory();
    }
    
}