|
1
16
17 package org.apache.log4j.gui;
18
19
20 import java.awt.Color  ;
21 import java.awt.Image ;
22 import java.awt.Toolkit ;
23 import java.io.*;
24 import java.net.URL ;
25 import java.util.Enumeration ;
26 import java.util.StringTokenizer ;
27 import java.util.Hashtable ;
28
29 import javax.swing.Icon ;
30 import javax.swing.ImageIcon ;
31 import javax.swing.JTextPane ;
32 import javax.swing.text.AttributeSet ;
33 import javax.swing.text.BadLocationException ;
34 import javax.swing.text.MutableAttributeSet ;
35 import javax.swing.text.SimpleAttributeSet ;
36 import javax.swing.text.StyleConstants ;
37 import javax.swing.text.StyledDocument ;
38 import javax.swing.text.TabSet ;
39 import javax.swing.text.TabStop ;
40
41 import org.apache.log4j.*;
42
43 import org.apache.log4j.spi.LoggingEvent;
44 import org.apache.log4j.helpers.Loader;
45 import org.apache.log4j.helpers.QuietWriter;
46 import org.apache.log4j.helpers.TracerPrintWriter;
47 import org.apache.log4j.helpers.OptionConverter;
48
49
50
58
59 public class TextPaneAppender extends AppenderSkeleton {
60
61 JTextPane textpane;
62 StyledDocument doc;
63 TracerPrintWriter tp;
64 StringWriter sw;
65 QuietWriter qw;
66 Hashtable attributes;
67 Hashtable icons;
68
69 private String label;
70
71 private boolean fancy;
72
73 final String LABEL_OPTION = "Label";
74 final String COLOR_OPTION_FATAL = "Color.Emerg";
75 final String COLOR_OPTION_ERROR = "Color.Error";
76 final String COLOR_OPTION_WARN = "Color.Warn";
77 final String COLOR_OPTION_INFO = "Color.Info";
78 final String COLOR_OPTION_DEBUG = "Color.Debug";
79 final String COLOR_OPTION_BACKGROUND = "Color.Background";
80 final String FANCY_OPTION = "Fancy";
81 final String FONT_NAME_OPTION = "Font.Name";
82 final String FONT_SIZE_OPTION = "Font.Size";
83
84 public static Image loadIcon ( String path ) {
85 Image img = null;
86 try {
87 URL url = ClassLoader.getSystemResource(path);
88 img = (Image ) (Toolkit.getDefaultToolkit()).getImage(url);
89 } catch (Exception e) {
90 System.out.println("Exception occured: " + e.getMessage() +
91 " - " + e );
92 }
93 return (img);
94 }
95
96 public TextPaneAppender(Layout layout, String name) {
97 this();
98 this.layout = layout;
99 this.name = name;
100 setTextPane(new JTextPane ());
101 createAttributes();
102 createIcons();
103 }
104
105 public TextPaneAppender() {
106 super();
107 setTextPane(new JTextPane ());
108 createAttributes();
109 createIcons();
110 this.label="";
111 this.sw = new StringWriter();
112 this.qw = new QuietWriter(sw, errorHandler);
113 this.tp = new TracerPrintWriter(qw);
114 this.fancy =true;
115 }
116
117 public
118 void close() {
119
120 }
121
122 private void createAttributes() {
123 Priority prio[] = Priority.getAllPossiblePriorities();
124
125 attributes = new Hashtable ();
126 for (int i=0; i<prio.length;i++) {
127 MutableAttributeSet att = new SimpleAttributeSet ();
128 attributes.put(prio[i], att);
129 StyleConstants.setFontSize(att,14);
130 }
131 StyleConstants.setForeground((MutableAttributeSet )attributes.get(Priority.ERROR),Color.red);
132 StyleConstants.setForeground((MutableAttributeSet )attributes.get(Priority.WARN),Color.orange);
133 StyleConstants.setForeground((MutableAttributeSet )attributes.get(Priority.INFO),Color.gray);
134 StyleConstants.setForeground((MutableAttributeSet )attributes.get(Priority.DEBUG),Color.black);
135 }
136
137 private void createIcons() {
138 Priority prio[] = Priority.getAllPossiblePriorities();
139
140 icons = new Hashtable ();
141 for (int i=0; i<prio.length;i++) {
142 if (prio[i].equals(Priority.FATAL))
143 icons.put(prio[i],new ImageIcon (loadIcon("icons/RedFlag.gif")));
144 if (prio[i].equals(Priority.ERROR))
145 icons.put(prio[i],new ImageIcon (loadIcon("icons/RedFlag.gif")));
146 if (prio[i].equals(Priority.WARN))
147 icons.put(prio[i],new ImageIcon (loadIcon("icons/BlueFlag.gif")));
148 if (prio[i].equals(Priority.INFO))
149 icons.put(prio[i],new ImageIcon (loadIcon("icons/GreenFlag.gif")));
150 if (prio[i].equals(Priority.DEBUG))
151 icons.put(prio[i],new ImageIcon (loadIcon("icons/GreenFlag.gif")));
152 }
153 }
154
155 public void append(LoggingEvent event) {
156 String text = this.layout.format(event);
157 String trace="";
158 if (event.throwable!=null) {
161 event.throwable.printStackTrace(tp);
162 for (int i=0; i< sw.getBuffer().length(); i++) {
163 if (sw.getBuffer().charAt(i)=='\t')
164 sw.getBuffer().replace(i,i+1," ");
165 }
166 trace = sw.toString();
167 sw.getBuffer().delete(0,sw.getBuffer().length());
168 }
169 try {
170 if (fancy) {
171 textpane.setEditable(true);
172 textpane.insertIcon((ImageIcon )icons.get(event.priority));
173 textpane.setEditable(false);
174 }
175 doc.insertString(doc.getLength(),text+trace,
176 (MutableAttributeSet )attributes.get(event.priority));
177 }
178 catch (BadLocationException badex) {
179 System.err.println(badex);
180 }
181 textpane.setCaretPosition(doc.getLength());
182 }
183
184 public
185 JTextPane getTextPane() {
186 return textpane;
187 }
188
189 private
190 static
191 Color parseColor (String v) {
192 StringTokenizer st = new StringTokenizer (v,",");
193 int val[] = {255,255,255,255};
194 int i=0;
195 while (st.hasMoreTokens()) {
196 val[i]=Integer.parseInt(st.nextToken());
197 i++;
198 }
199 return new Color (val[0],val[1],val[2],val[3]);
200 }
201
202 private
203 static
204 String colorToString(Color c) {
205 String res = ""+c.getRed()+","+c.getGreen()+","+c.getBlue();
207 return c.getAlpha() >= 255 ? res : res + ","+c.getAlpha();
208 }
209
210 public
211 void setLayout(Layout layout) {
212 this.layout=layout;
213 }
214
215 public
216 void setName(String name) {
217 this.name = name;
218 }
219
220
221 public
222 void setTextPane(JTextPane textpane) {
223 this.textpane=textpane;
224 textpane.setEditable(false);
225 textpane.setBackground(Color.lightGray);
226 this.doc=textpane.getStyledDocument();
227 }
228
229 private
230 void setColor(Priority p, String v) {
231 StyleConstants.setForeground(
232 (MutableAttributeSet )attributes.get(p),parseColor(v));
233 }
234
235 private
236 String getColor(Priority p) {
237 Color c = StyleConstants.getForeground(
238 (MutableAttributeSet )attributes.get(p));
239 return c == null ? null : colorToString(c);
240 }
241
242
245 public
246 void setLabel(String label) {
247 this.label = label;
248 }
249 public
250 String getLabel() {
251 return label;
252 }
253
254 public
255 void setColorEmerg(String color) {
256 setColor(Priority.FATAL, color);
257 }
258 public
259 String getColorEmerg() {
260 return getColor(Priority.FATAL);
261 }
262
263 public
264 void setColorError(String color) {
265 setColor(Priority.ERROR, color);
266 }
267 public
268 String getColorError() {
269 return getColor(Priority.ERROR);
270 }
271
272 public
273 void setColorWarn(String color) {
274 setColor(Priority.WARN, color);
275 }
276 public
277 String getColorWarn() {
278 return getColor(Priority.WARN);
279 }
280
281 public
282 void setColorInfo(String color) {
283 setColor(Priority.INFO, color);
284 }
285 public
286 String getColorInfo() {
287 return getColor(Priority.INFO);
288 }
289
290 public
291 void setColorDebug(String color) {
292 setColor(Priority.DEBUG, color);
293 }
294 public
295 String getColorDebug() {
296 return getColor(Priority.DEBUG);
297 }
298
299 public
300 void setColorBackground(String color) {
301 textpane.setBackground(parseColor(color));
302 }
303 public
304 String getColorBackground() {
305 return colorToString(textpane.getBackground());
306 }
307
308 public
309 void setFancy(boolean fancy) {
310 this.fancy = fancy;
311 }
312 public
313 boolean getFancy() {
314 return fancy;
315 }
316
317 public
318 void setFontSize(int size) {
319 Enumeration e = attributes.elements();
320 while (e.hasMoreElements()) {
321 StyleConstants.setFontSize((MutableAttributeSet )e.nextElement(),size);
322 }
323 return;
324 }
325
326 public
327 int getFontSize() {
328 AttributeSet attrSet = (AttributeSet ) attributes.get(Priority.INFO);
329 return StyleConstants.getFontSize(attrSet);
330 }
331
332 public
333 void setFontName(String name) {
334 Enumeration e = attributes.elements();
335 while (e.hasMoreElements()) {
336 StyleConstants.setFontFamily((MutableAttributeSet )e.nextElement(),name);
337 }
338 return;
339 }
340
341 public
342 String getFontName() {
343 AttributeSet attrSet = (AttributeSet ) attributes.get(Priority.INFO);
344 return StyleConstants.getFontFamily(attrSet);
345 }
346
347 public
348 boolean requiresLayout() {
349 return true;
350 }
351 }
353
354
355 |
Popular Tags |
Java API By Example, From Geeks To Geeks.