|
1 package com.sslexplorer.core;
2
3 import java.awt.BorderLayout  ;
4 import java.awt.Color ;
5 import java.awt.Dimension ;
6 import java.awt.Font ;
7 import java.util.ArrayList ;
8 import java.util.List ;
9
10 import javax.swing.JPanel ;
11 import javax.swing.JScrollPane ;
12 import javax.swing.JTextPane ;
13 import javax.swing.SwingUtilities ;
14 import javax.swing.text.AttributeSet ;
15 import javax.swing.text.SimpleAttributeSet ;
16 import javax.swing.text.StyleConstants ;
17
18
19 public class SimpleConsole extends JPanel {
20 private final static int MAX_BUFFERED_LINES = 1000;
21 private JTextPane textPane;
22 private int maxLength;
23 private ConsoleWriter consoleWriter;
24
25 public SimpleConsole() {
26 super(new BorderLayout ());
27 consoleWriter = new ConsoleWriter();
28 textPane = new JTextPane () {
30 public boolean getScrollableTracksViewportWidth() {
31 return false;
32 }
33
34 public void setSize(Dimension d) {
35 if (d.width < getParent().getSize().width) {
36 d.width = getParent().getSize().width;
37 }
38 super.setSize(d);
39 }
40 };
41 textPane.setEditable(false);
42 textPane.setFont(new Font ("Monospaced", Font.BOLD, 10));
43 JScrollPane textScroller = new JScrollPane (textPane) {
44 public Dimension getPreferredSize() {
45 return new Dimension (super.getPreferredSize().width, 140);
46 }
47 };
48 add(textScroller, BorderLayout.CENTER);
50 maxLength = 131072;
51 checkMaxLength(0);
52 }
53
54 private void checkMaxLength(int toAdd) {
55 try {
56 int z = textPane.getDocument().getLength() + toAdd;
57 if (z > maxLength) {
58 textPane.getDocument().remove(0, z - maxLength);
59 }
60 } catch (Throwable ex) {
61 }
62 }
63
64 public void writeMessage(boolean ok, final String text) {
65 consoleWriter.addMessage(ok, text);
66 }
67
68 static class WriteLock {
69 }
70
71 class ConsoleWriter extends Thread {
72 private List consoleBuffer;
73
74 ConsoleWriter() {
75 super("ConsoleWriter");
76 setDaemon(true);
77 consoleBuffer = new ArrayList ();
78 start();
79 }
80
81 public void addMessage(boolean ok, String text) {
82 synchronized (consoleBuffer) {
83 if (consoleBuffer.size() > MAX_BUFFERED_LINES) {
84 try {
85 consoleBuffer.wait();
86 } catch (InterruptedException e) {
87 }
88 }
89 consoleBuffer.add(new ConsoleWriterWrapper(ok, text));
90 }
91 synchronized (this) {
92 notifyAll();
93 }
94 }
95
96 public void run() {
97 StringBuffer writeBuffer = new StringBuffer ();
98 SimpleAttributeSet attr = null;
99 int l = 0;
100 while (true) {
101 synchronized (this) {
102 try {
103 wait(2000);
104 } catch (InterruptedException ie) {
105 }
106 }
107 while (consoleBuffer.size() > 0) {
108 ConsoleWriterWrapper w = (ConsoleWriterWrapper) consoleBuffer.get(0);
109 String txt = w.text;
110 if (!txt.endsWith("\n")) {
111 txt = txt + "\n";
112 }
113 if (writeBuffer.length() != 0) {
114 writeText(writeBuffer.toString(), attr);
115 writeBuffer.setLength(0);
116 l = 0;
117 }
118 attr = new SimpleAttributeSet ();
119 if (w.ok)
120 StyleConstants.setForeground(attr, Color.green.darker());
121 else
122 StyleConstants.setForeground(attr, Color.red.darker());
123 writeBuffer.append(txt);
124 l++;
125 if (l == 5) {
126 writeText(writeBuffer.toString(), attr);
127 writeBuffer.setLength(0);
128 l = 0;
129 }
130 synchronized (consoleBuffer) {
131 consoleBuffer.remove(0);
132 if (consoleBuffer.size() < (MAX_BUFFERED_LINES / 2)) {
133 consoleBuffer.notifyAll();
134 }
135 }
136 }
137 if (writeBuffer.length() > 0) {
138 writeText(writeBuffer.toString(), attr);
139 writeBuffer.setLength(0);
140 l = 0;
141 }
142 }
143 }
144
145 public void writeText(final String writeTxt, final AttributeSet attr) {
146 try {
147 SwingUtilities.invokeAndWait(new Runnable () {
148 public void run() {
149 try {
150 checkMaxLength(0);
151 textPane.getDocument().insertString(textPane.getDocument().getLength(), writeTxt, attr);
152 textPane.scrollRectToVisible(textPane.getVisibleRect());
153 textPane.setCaretPosition(textPane.getDocument().getLength());
154 } catch (Throwable ex) {
155 }
156 }
157 });
158 } catch (Exception e) {
159 }
160 }
161
162 class ConsoleWriterWrapper {
163 boolean ok;
164 String text;
165
166 ConsoleWriterWrapper(boolean ok, String text) {
167 this.ok = ok;
168 this.text = text;
169 }
170 }
171 }
172 } |
Popular Tags |
Java API By Example, From Geeks To Geeks.