2362N/A * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * ProgressSource represents the source of progress changes. 0N/A * @author Stanley Man-Kit Ho 0N/A // the last thing to happen with this source 0N/A // threshold for notification 0N/A * Construct progress source object. 0N/A * Construct progress source object. 0N/A * Close progress source. 0N/A * Return URL of progress source. 0N/A * Return method of URL. 0N/A * Return content type of URL. 0N/A // Change content type 0N/A * Return current progress. 0N/A * Return expected maximum progress; -1 if expected is unknown. 0N/A * Begin progress tracking. 0N/A * Finish progress tracking. 0N/A // The threshold effectively divides the progress into 0N/A // different set of ranges: 0N/A // Range 0: 0..threshold-1, 0N/A // Range 1: threshold .. 2*threshold-1 0N/A // Range n: n*threshold .. (n+1)*threshold-1 0N/A // To determine which range the progress belongs to, it 0N/A // would be calculated as follow: 0N/A // range number = progress / threshold 0N/A // Notification should only be triggered when the current 0N/A // progress and the last progress are in different ranges, 0N/A // i.e. they have different range numbers. 0N/A // Using this range scheme, notification will be generated 0N/A // only once when the progress reaches each range. 0N/A // Detect read overrun