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326 lines
11 KiB
326 lines
11 KiB
/* This file is part of the KDE project
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*
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* Copyright (C) 2002 Till
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* Copyright (C) 2005 Koos Vriezen <koos ! vriezen () xs4all ! nl>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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package org.kde.kjas.server;
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import java.awt.Toolkit;
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import java.awt.Image;
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import java.awt.BorderLayout;
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import java.awt.event.ActionListener;
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import java.awt.event.ActionEvent;
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import java.awt.event.KeyAdapter;
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import java.awt.event.KeyEvent;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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import java.io.PrintStream;
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import java.util.Enumeration;
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import java.util.Properties;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.JScrollPane;
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import javax.swing.JButton;
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import javax.swing.JTextArea;
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import javax.swing.border.EmptyBorder;
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public class KJASSwingConsole implements Console {
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private JFrame frame = null;
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private JPanel jPanel1;
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private JScrollPane jScrollPane1;
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private JButton clearButton;
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private JTextArea textField;
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private JButton closeButton;
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private JButton copyButton;
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final static int NR_BUFFERS = 3;
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final static int MAX_BUF_LENGTH = 3000;
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private int queue_pos = 0;
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private StringBuffer [] output_buffer = new StringBuffer[NR_BUFFERS];
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private PrintStream real_stderr = new PrintStream(System.err);
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/** Creates new form KJASSwingConsole */
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public KJASSwingConsole() {
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PrintStream st = new PrintStream( new KJASConsoleStream(this) );
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System.setOut(st);
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System.setErr(st);
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}
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private void initComponents() {
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frame = new JFrame("Konqueror Java Console");
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jPanel1 = new JPanel();
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clearButton = new JButton();
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closeButton = new JButton();
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copyButton = new JButton();
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jScrollPane1 = new JScrollPane();
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textField = new JTextArea();
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frame.setFont(new java.awt.Font("Monospaced", 0, 10));
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frame.setName("KJAS Console");
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frame.addWindowListener(new WindowAdapter() {
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public void windowClosing(WindowEvent evt) {
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exitForm(evt);
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}
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});
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jPanel1.setLayout(new BorderLayout());
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jPanel1.setBorder(new EmptyBorder(new java.awt.Insets(1, 1, 1, 1)));
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clearButton.setText("clear");
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clearButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent evt) {
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clearButtonActionPerformed(evt);
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}
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});
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jPanel1.add(clearButton, BorderLayout.WEST);
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closeButton.setText("close");
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closeButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent evt) {
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closeButtonActionPerformed(evt);
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}
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});
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jPanel1.add(closeButton, BorderLayout.EAST);
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copyButton.setText("copy");
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copyButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent evt) {
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copyButtonActionPerformed(evt);
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}
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});
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jPanel1.add(copyButton, BorderLayout.CENTER);
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frame.getContentPane().add(jPanel1, BorderLayout.SOUTH);
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textField.setColumns(40);
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textField.setEditable(false);
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textField.setRows(10);
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textField.addKeyListener(new KeyAdapter() {
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public void keyPressed(KeyEvent evt) {
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textFieldKeyPressed(evt);
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}
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});
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jScrollPane1.setViewportView(textField);
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frame.getContentPane().add(jScrollPane1, BorderLayout.CENTER);
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try {
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java.net.URL iconUrl = getClass().getClassLoader().getResource("images/beanicon.png");
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if (iconUrl != null) {
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Toolkit tk = Toolkit.getDefaultToolkit();
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Image icon = tk.createImage(iconUrl);
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frame.setIconImage(icon);
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}
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} catch (Throwable e) {
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}
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frame.pack();
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frame.setSize(500, 300);
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}
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private void textFieldKeyPressed(java.awt.event.KeyEvent evt) {
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// Add your handling code here:
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char key = evt.getKeyChar();
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switch (key) {
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case 'h':
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showHelp();
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break;
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case 'g':
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append("Running Garbage Collection ...\n", true);
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System.gc();
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case 'm':
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append("Total Memory: " + Runtime.getRuntime().totalMemory() + " bytes\n", true);
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append("Free Memory : " + Runtime.getRuntime().freeMemory() + " bytes\n", true);
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break;
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case 'c':
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clear();
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break;
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case 's':
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showSystemProperties();
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break;
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case 't':
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showThreads();
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break;
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case 'x':
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KJASAppletClassLoader.removeLoaders();
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append("Emptied Classloader Cache\n", true);
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break;
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}
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}
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private void showHelp() {
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append("Java VM: " + System.getProperty("java.vendor") + " " + System.getProperty("java.version") + "\n", true);
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String ph = System.getProperty("http.proxyHost");
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if (ph != null) {
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append("Proxy: " + ph + ":" + System.getProperty("java.proxyPort") + "\n", true);
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}
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SecurityManager sec = System.getSecurityManager();
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if (sec == null) {
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append("WARNING: Security Manager disabled!\n", true);
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} else {
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append("SecurityManager=" + sec + "\n", true);
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}
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appendSeparator();
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append("Konqueror Java Console Help\n", true);
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append(" c: clear console\n", true);
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append(" g: run garbage collection\n", true);
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append(" h: show help\n", true);
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append(" m: show memory info\n", true);
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append(" s: print system properties\n", true);
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append(" t: list threads\n", true);
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append(" x: empty classloader cache\n", true);
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appendSeparator();
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}
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private void showSystemProperties() {
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append("Printing System Properties ...\n", true);
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appendSeparator();
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Properties p = System.getProperties();
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for (Enumeration e = p.keys(); e.hasMoreElements();) {
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Object key = e.nextElement();
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if ("line.separator".equals(key)) {
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String value = (String) p.get(key);
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StringBuffer unescaped = new StringBuffer(10);
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for (int i = 0; i < value.length(); i++) {
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char c = value.charAt(i);
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if (c == '\n') unescaped.append("\\n");
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else if (c == '\r') unescaped.append("\\n");
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else unescaped.append(c);
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}
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append(key + " = " + unescaped + "\n", true);
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} else append(key + " = " + p.get(key) + "\n", true);
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}
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appendSeparator();
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}
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private void showThreads() {
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Thread t = Thread.currentThread();
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ThreadGroup g = t.getThreadGroup();
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ThreadGroup parent;
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while ((parent = g.getParent()) != null) {
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g = parent;
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}
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g.list();
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}
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private void copyButtonActionPerformed(java.awt.event.ActionEvent evt) {
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textField.selectAll();
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textField.copy();
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}
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private void closeButtonActionPerformed(java.awt.event.ActionEvent evt) {
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frame.setVisible(false);
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}
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private void clearButtonActionPerformed(java.awt.event.ActionEvent evt) {
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clear();
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}
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/** Exit the Application */
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private void exitForm(java.awt.event.WindowEvent evt) {
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frame.setVisible(false);
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}
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public void setVisible(boolean visible) {
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if (frame == null && visible) {
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initComponents();
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frame.setVisible(visible);
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System.out.println( "Java VM version: " +
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System.getProperty("java.version") );
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System.out.println( "Java VM vendor: " +
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System.getProperty("java.vendor") );
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String ph = System.getProperty("http.proxyHost");
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String pp = System.getProperty("http.proxyPort");
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if (ph != null) {
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System.out.println("Proxy: " + ph + ":" + pp);
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}
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SecurityManager sec = System.getSecurityManager();
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Main.debug("SecurityManager=" + sec);
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if (sec == null) {
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System.out.println( "WARNING: Security Manager disabled!" );
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textField.setForeground(java.awt.Color.red);
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}
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showHelp();
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} else if (frame != null)
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frame.setVisible(visible);
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if (visible) {
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for (int i = 0; i < NR_BUFFERS; i++)
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if (output_buffer[(queue_pos + i + 1) % 3] != null) {
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textField.append(output_buffer[(queue_pos + i + 1) % 3].toString());
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output_buffer[(queue_pos + i + 1) % 3] = null;
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}
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}
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}
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/**
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* @param args the command line arguments
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*/
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public static void main(String args[]) {
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new KJASSwingConsole().setVisible(true);
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}
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public void clear() {
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textField.setText("");
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}
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private void appendSeparator() {
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append("----------------------------------------------------\n", true);
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}
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public void append(String txt) {
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append(txt, false);
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}
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public void append(String txt, boolean force) {
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if (txt == null)
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return;
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if (frame == null || !frame.isVisible()) {
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if (Main.Debug)
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real_stderr.print(txt);
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if (output_buffer[queue_pos] != null &&
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output_buffer[queue_pos].length() > MAX_BUF_LENGTH) {
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queue_pos = (++queue_pos) % NR_BUFFERS;
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if (output_buffer[queue_pos] != null) {
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// starting overwriting old log, clear textField if exists
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if (frame != null)
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textField.setText("");
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output_buffer[queue_pos] = null;
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}
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}
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if (output_buffer[queue_pos] == null)
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output_buffer[queue_pos] = new StringBuffer(txt);
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else
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output_buffer[queue_pos].append(txt);
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return;
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}
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int length = txt.length();
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synchronized(textField) {
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//get the caret position, and then get the new position
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int old_pos = textField.getCaretPosition();
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textField.append(txt);
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textField.setCaretPosition( old_pos + length );
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}
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}
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}
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