ProgressMeterStrmDemo.java Source code

Introduction

Here is the source code for ProgressMeterStrmDemo.java

Source

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS 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 THE AUTHOR OR 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.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import javax.swing.*;
import java.io.*;

/**
 * Demonstrate ProgressMeterInputStream.
 *
 * @author   Ian Darwin, http://www.darwinsys.com/
 * @version   $Id: ProgressMeterStrmDemo.java,v 1.5 2004/02/23 03:39:22 ian Exp $
 */
public class ProgressMeterStrmDemo extends JFrame implements Runnable {

    public void readTheFile() throws IOException {
        // OK, we're going to read a file. Do it...
        FileInputStream is = new FileInputStream("index.htm");
        BufferedReader ds = new BufferedReader(new InputStreamReader(
                new ProgressMonitorInputStream(this, "Loading...", new FileInputStream("index.htm"))));

        // Now read it...
        String line;
        while ((line = ds.readLine()) != null) {
            if (System.getProperties().getProperty("debug.lines") != null)
                System.err.println("Read this line: " + line);
            try {
                Thread.sleep(200); // slow it down a bit.
            } catch (InterruptedException e) {
                return;
            }
        }
        // Close file, since it was opened.
        ds.close();
    }

    /** We use a separate "thread" (see Threads chapter) to do the reading,
     * so the GUI can run independantly (since we have "sleep" calls to make
     * it appear to run more slowly).
     */
    public void run() {
        try {
            readTheFile();
        } catch (EOFException nme) {
            return;
        } catch (IOException e) {
            System.err.println(e.toString());
            return;
        }
    }

    public ProgressMeterStrmDemo() {
        new Thread(this).start();
    }

    public static void main(String[] av) {
        ProgressMeterStrmDemo demo = new ProgressMeterStrmDemo();
        demo.setSize(100, 100);
        demo.getContentPane().add(new JLabel("ProgressMeterStrmDemo"));
        demo.pack();
        demo.setVisible(true);

    }
}