/* *  The Sun Project JXTA(TM) Software License *   *  Copyright (c) 2001-2004 Sun Microsystems, Inc. All rights reserved. *   *  Redistribution and use in source and binary forms, with or without  *  modification, are permitted provided that the following conditions are met: *   *  1. Redistributions of source code must retain the above copyright notice, *     this list of conditions and the following disclaimer. *   *  2. Redistributions in binary form must reproduce the above copyright notice,  *     this list of conditions and the following disclaimer in the documentation  *     and/or other materials provided with the distribution. *   *  3. The end-user documentation included with the redistribution, if any, must  *     include the following acknowledgment: "This product includes software  *     developed by Sun Microsystems, Inc. for JXTA(TM) technology."  *     Alternately, this acknowledgment may appear in the software itself, if  *     and wherever such third-party acknowledgments normally appear. *   *  4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must  *     not be used to endorse or promote products derived from this software  *     without prior written permission. For written permission, please contact  *     Project JXTA at http://www.jxta.org. *   *  5. Products derived from this software may not be called "JXTA", nor may  *     "JXTA" appear in their name, without prior written permission of Sun. *   *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, *  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND  *  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SUN  *  MICROSYSTEMS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,  *  OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,  *  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *   *  JXTA is a registered trademark of Sun Microsystems, Inc. in the United  *  States and other countries. *   *  Please see the license information page at : *  <http://www.jxta.org/project/www/license.html> for instructions on use of  *  the license in source files. *   *  ==================================================================== *  This software consists of voluntary contributions made by many individuals  *  on behalf of Project JXTA. For more information on Project JXTA, please see  *  http://www.jxta.org. *   *  This license is based on the BSD license adopted by the Apache Foundation.  *   *  $Id: Logging.java,v 1.1 2006/06/09 21:52:28 bondolo Exp $ */package net.jxta.logging;import java.util.logging.Level;import java.util.logging.Logger;/** *  This class defines constants for JXTA JSE's logging facilities. In this *  implementation the constants are initialized based upon the value of the *  Java System property {@code net.jxta.logging.Logging}. This implementation *  defines all of the public constants as {@code final} which enables the *  JVM/JIT to optimize out the logging code when appropriately configured. * *  <p/>Alternate implementations of this class could; *  *  <ul> *  <li>Initialize the public constants with manifest constants, ie.  *  {@code true} or {@code false} which would allow the Java compiler to  *  optimize out logging code at compile time.</li> *   *  <li>Remove the {@code static} qualifier from the constants and provide *  additional methods to dynamically set the logging configuration at runtime. *  </li> *  </ul> */public final class Logging {        /**     *   Our Logger !     */    private final static Logger LOG = Logger.getLogger( Logging.class.getName() );                /**     *  The name of the system property from which we will attempt to read our     *  logging configuration.     */    private final static String JXTA_LOGGING_PROPERTY = "net.jxta.logging.Logging";        /**     * The default logging level.     */        private final static Level DEFAULT_LOGGING_LEVEL = Level.SEVERE;        /**     *  The logging level for this run.     */    public final static Level LEVEL;        /**     *  Is Level.Finest enabled?     */    public final static boolean FINEST;        /**     *  Is Level.Finer enabled?     */    public final static boolean FINER;        /**     *  Is Level.Fine enabled?     */    public final static boolean FINE;        /**     *  Is Level.Config enabled?     */    public final static boolean CONFIG;        /**     *  Is Level.Info enabled?     */    public final static boolean INFO;        /**     *  Is Level.Warning enabled?     */    public final static boolean WARNING;        /**     *  Is Level.Severe enabled?     */    public final static boolean SEVERE;        /* Initialize the constants */    static {        Level setLevel = DEFAULT_LOGGING_LEVEL;                try {            setLevel = Level.parse(System.getProperty(JXTA_LOGGING_PROPERTY, DEFAULT_LOGGING_LEVEL.toString()));        } catch(SecurityException disallowed) {            if (LOG.isLoggable(Level.WARNING)) {                LOG.log( Level.WARNING, "Could not read configuration property.", disallowed );            }        }                LEVEL = setLevel;                FINEST = LEVEL.intValue() >= Level.FINEST.intValue();        FINER = LEVEL.intValue() >= Level.FINER.intValue();        FINE = LEVEL.intValue() >= Level.FINE.intValue();        CONFIG = LEVEL.intValue() >= Level.CONFIG.intValue();        INFO = LEVEL.intValue() >= Level.INFO.intValue();        WARNING = LEVEL.intValue() >= Level.WARNING.intValue();        SEVERE = LEVEL.intValue() >= Level.SEVERE.intValue();                if (Logging.CONFIG && LOG.isLoggable(Level.CONFIG)) {            LOG.config( "Logging enabled for level : " + LEVEL );        }    }        /**      * This class is not meant be instantiated.     */    private Logging() {    }   }