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The source code/* * 11/15/2000 - 22:05:27 * * VersionCheck.java - Version Check * Copyright (C) 1999 Romain Guy * romain.guy@jext.org * www.jext.org * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or any later version. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package org.jext.misc; import java.io.*; import java.util.Vector; import java.net.URL; import java.awt.*; import javax.swing.*; import org.jext.*; public class VersionCheck extends Thread { public VersionCheck() { super("----thread: version check: jext----"); start(); } public void run() { try { URL url = new URL(Jext.getProperty("check.url")); BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); StringBuffer buf = new StringBuffer(); String line; String build = null; String version = null; while ((line = in.readLine()) != null) { if (line.startsWith("#")) continue; else if (line.startsWith(".release")) version = line.substring(8).trim(); else if (line.startsWith(".build")) build = line.substring(6).trim(); else if (line.startsWith(".description")) { while ((line = in.readLine()) != null && !line.equals(".end")) buf.append(line); } else if (line.startsWith(".end")) break; } in.close(); if (version != null && build != null) { if (Jext.BUILD.compareTo(build) < 0) { String[] args2 = { version, build }; JEditorPane textArea = new JEditorPane(); textArea.setContentType("text/html"); textArea.setText(buf.toString()); textArea.setEditable(false); JPanel pane = new JPanel(new BorderLayout()); pane.add(BorderLayout.NORTH, new JLabel(Jext.getProperty("check.changes"))); pane.add(BorderLayout.CENTER, new JScrollPane(textArea)); JOptionPane.showMessageDialog((JextFrame) Jext.getInstances().get(0), pane, Jext.getProperty("check.new"), JOptionPane.INFORMATION_MESSAGE); } } } catch (Exception e) { } finally { Jext.stopAutoCheck(); } } } // End of VersionCheck.java |
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