Java tutorial
/* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is part of dcm4che, an implementation of DICOM(TM) in * Java(TM), hosted at http://sourceforge.net/projects/dcm4che. * * The Initial Developer of the Original Code is * Agfa-Gevaert AG. * Portions created by the Initial Developer are Copyright (C) 2008 * the Initial Developer. All Rights Reserved. * * Contributor(s): * See listed authors below. * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * ***** END LICENSE BLOCK ***** */ package org.dcm4chee.web.common.model; import org.apache.wicket.model.AbstractReadOnlyModel; /** * @author Franz Willer <franz.willer@gmail.com> * @version $Revision$ $Date$ * @param <E> * @since Jun 15, 2010 */ public class ElapsedTimeModel extends AbstractReadOnlyModel<Long> { public static final int MILLIS = 1; public static final int SECONDS = 1000; public static final int MINUTES = 60000; public static final int HOURS = 3600000; public static final int DAYS = 86400000; private long startTime; private int unitDivider; private boolean reset = false; private static final long serialVersionUID = 0L; public ElapsedTimeModel() { this(System.currentTimeMillis(), MILLIS); } public ElapsedTimeModel(int divider) { this(System.currentTimeMillis(), divider); } public ElapsedTimeModel(long start, int divider) { if (divider == 0) throw new IllegalArgumentException("UNIT divider must not be 0!"); startTime = start; unitDivider = divider; } public ElapsedTimeModel setResetAfterGet(boolean b) { reset = b; return this; } public Long getObject() { return unitDivider == 1 ? getMillis() : getMillis() / unitDivider; } public Long getMillis() { long t1 = System.currentTimeMillis(); long diff = t1 - startTime; if (reset) { startTime = t1; } return diff; } public Long getSeconds() { return getMillis() / SECONDS; } public Long getMinutes() { return getMillis() / MINUTES; } public Long getHours() { return getMillis() / HOURS; } public Long getDays() { return getMillis() / DAYS; } }