com.izforge.izpack.util.Console Maven / Gradle / Ivy
package com.izforge.izpack.util;
import javax.swing.*;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.Document;
import javax.swing.text.Segment;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
/**
* Created by IntelliJ IDEA.
* User: sora
* Date: Nov 23, 2009
* Time: 11:37:06 PM
* To change this template use File | Settings | File Templates.
*/
public final class Console
{
public static final int INITIAL_WIDTH = 800;
public static final int INITIAL_HEIGHT = 600;
public static void main(String[] args)
{
Runtime runtime = Runtime.getRuntime();
Process process = null;
try
{
/*
* Start a new process in which to execute the commands in cmd, using the environment in
* env and use pwd as the current working directory.
*/
process = runtime.exec(args);// , env, pwd);
new Console(process);
System.exit(process.exitValue());
}
catch (IOException e)
{
/*
* Couldn't even get the command to start. Most likely it couldn't be found because of a
* typo.
*/
System.out.println("Error starting: " + args[0]);
System.out.println(e);
}
}
private StdOut so;
private StdOut se;
public String getOutputData()
{
if (so != null)
{
return so.getData();
}
else
{
return "";
}
}
public String getErrorData()
{
if (se != null)
{
return se.getData();
}
else
{
return "";
}
}
public Console(final Process p)
{
JFrame frame = new JFrame();
frame.setTitle("Console");
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
frame.setLocation(screenSize.width / 2 - INITIAL_WIDTH / 2, screenSize.height / 2
- INITIAL_HEIGHT / 2);
ConsoleTextArea cta = new ConsoleTextArea();
JScrollPane scroll = new JScrollPane(cta);
scroll.setPreferredSize(new Dimension(INITIAL_WIDTH, INITIAL_HEIGHT));
frame.getContentPane().add(scroll);
frame.pack();
frame.addWindowListener(new WindowListener()
{
public void windowActivated(WindowEvent e)
{
}
public void windowClosed(WindowEvent e)
{
}
public void windowClosing(WindowEvent e)
{
p.destroy();
}
public void windowDeactivated(WindowEvent e)
{
}
public void windowDeiconified(WindowEvent e)
{
}
public void windowIconified(WindowEvent e)
{
}
public void windowOpened(WindowEvent e)
{
}
});
// From here down your shell should be pretty much
// as it is written here!
/*
* Start up StdOut, StdIn and StdErr threads that write the output generated by the process
* p to the screen, and feed the keyboard input into p.
*/
so = new StdOut(p, cta);
se = new StdOut(p, cta);
StdIn si = new StdIn(p, cta);
so.start();
se.start();
si.start();
// Wait for the process p to complete.
try
{
frame.setVisible(true);
p.waitFor();
}
catch (InterruptedException e)
{
/*
* Something bad happened while the command was executing.
*/
System.out.println("Error during execution");
System.out.println(e);
}
/*
* Now signal the StdOut, StdErr and StdIn threads that the process is done, and wait for
* them to complete.
*/
try
{
so.done();
se.done();
si.done();
so.join();
se.join();
si.join();
}
catch (InterruptedException e)
{
// Something bad happend to one of the Std threads.
System.out.println("Error in StdOut, StdErr or StdIn.");
System.out.println(e);
}
frame.setVisible(false);
}
}
class ConsoleTextArea extends JTextArea implements KeyListener, DocumentListener
{
/**
*
*/
private static final long serialVersionUID = 3258410625414475827L;
private ConsoleWriter console1;
private PrintStream out;
private PrintStream err;
private PrintWriter inPipe;
private PipedInputStream in;
private List history;
private int historyIndex = -1;
private int outputMark = 0;
public void select(int start, int end)
{
requestFocus();
super.select(start, end);
}
public ConsoleTextArea()
{
super();
history = new ArrayList();
console1 = new ConsoleWriter(this);
ConsoleWriter console2 = new ConsoleWriter(this);
out = new PrintStream(console1);
err = new PrintStream(console2);
PipedOutputStream outPipe = new PipedOutputStream();
inPipe = new PrintWriter(outPipe);
in = new PipedInputStream();
try
{
outPipe.connect(in);
}
catch (IOException exc)
{
exc.printStackTrace();
}
getDocument().addDocumentListener(this);
addKeyListener(this);
setLineWrap(true);
setFont(new Font("Monospaced", 0, 12));
}
void returnPressed()
{
Document doc = getDocument();
int len = doc.getLength();
Segment segment = new Segment();
try
{
synchronized (doc)
{
doc.getText(outputMark, len - outputMark, segment);
}
}
catch (javax.swing.text.BadLocationException ignored)
{
ignored.printStackTrace();
}
if (segment.count > 0)
{
history.add(segment.toString());
}
historyIndex = history.size();
inPipe.write(segment.array, segment.offset, segment.count);
append("\n");
synchronized (doc)
{
outputMark = doc.getLength();
}
inPipe.write("\n");
inPipe.flush();
console1.flush();
}
public void eval(String str)
{
inPipe.write(str);
inPipe.write("\n");
inPipe.flush();
console1.flush();
}
public void keyPressed(KeyEvent e)
{
int code = e.getKeyCode();
if (code == KeyEvent.VK_BACK_SPACE || code == KeyEvent.VK_LEFT)
{
if (outputMark == getCaretPosition())
{
e.consume();
}
}
else if (code == KeyEvent.VK_HOME)
{
int caretPos = getCaretPosition();
if (caretPos == outputMark)
{
e.consume();
}
else if (caretPos > outputMark)
{
if (!e.isControlDown())
{
if (e.isShiftDown())
{
moveCaretPosition(outputMark);
}
else
{
setCaretPosition(outputMark);
}
e.consume();
}
}
}
else if (code == KeyEvent.VK_ENTER)
{
returnPressed();
e.consume();
}
else if (code == KeyEvent.VK_UP)
{
historyIndex--;
if (historyIndex >= 0)
{
if (historyIndex >= history.size())
{
historyIndex = history.size() - 1;
}
if (historyIndex >= 0)
{
String str = history.get(historyIndex);
int len = getDocument().getLength();
replaceRange(str, outputMark, len);
int caretPos = outputMark + str.length();
select(caretPos, caretPos);
}
else
{
historyIndex++;
}
}
else
{
historyIndex++;
}
e.consume();
}
else if (code == KeyEvent.VK_DOWN)
{
int caretPos = outputMark;
if (history.size() > 0)
{
historyIndex++;
if (historyIndex < 0)
{
historyIndex = 0;
}
int len = getDocument().getLength();
if (historyIndex < history.size())
{
String str = history.get(historyIndex);
replaceRange(str, outputMark, len);
caretPos = outputMark + str.length();
}
else
{
historyIndex = history.size();
replaceRange("", outputMark, len);
}
}
select(caretPos, caretPos);
e.consume();
}
}
public void keyTyped(KeyEvent e)
{
int keyChar = e.getKeyChar();
if (keyChar == 0x8 /* KeyEvent.VK_BACK_SPACE */)
{
if (outputMark == getCaretPosition())
{
e.consume();
}
}
else if (getCaretPosition() < outputMark)
{
setCaretPosition(outputMark);
}
}
public void keyReleased(KeyEvent e)
{
}
public synchronized void write(String str)
{
insert(str, outputMark);
int len = str.length();
outputMark += len;
select(outputMark, outputMark);
}
public synchronized void insertUpdate(DocumentEvent e)
{
int len = e.getLength();
int off = e.getOffset();
if (outputMark > off)
{
outputMark += len;
}
}
public synchronized void removeUpdate(DocumentEvent e)
{
int len = e.getLength();
int off = e.getOffset();
if (outputMark > off)
{
if (outputMark >= off + len)
{
outputMark -= len;
}
else
{
outputMark = off;
}
}
}
public void postUpdateUI()
{
// this attempts to cleanup the damage done by updateComponentTreeUI
requestFocus();
setCaret(getCaret());
synchronized (this)
{
select(outputMark, outputMark);
}
}
public void changedUpdate(DocumentEvent e)
{
}
public InputStream getIn()
{
return in;
}
public PrintStream getOut()
{
return out;
}
public PrintStream getErr()
{
return err;
}
} © 2015 - 2025 Weber Informatics LLC | Privacy Policy