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1 package org.columba.core.gui.logdisplay;
17
18 import java.util.Date  ;
19 import java.util.HashSet ;
20 import java.util.Iterator ;
21 import java.util.LinkedList ;
22 import java.util.List ;
23 import java.util.Set ;
24 import java.util.logging.Handler ;
25 import java.util.logging.Level ;
26 import java.util.logging.LogRecord ;
27 import java.util.logging.Logger ;
28
29 import javax.swing.ListModel ;
30 import javax.swing.event.ListDataEvent ;
31 import javax.swing.event.ListDataListener ;
32 import javax.swing.event.TableModelListener ;
33 import javax.swing.table.TableModel ;
34
35
36
40 public final class LogRecordList extends Handler implements TableModel , ListModel {
41
42
43 private static LogRecordList instance;
44
45
46 public static final String [] COLUMNS = new String [] {"Level", "Message", "Class", "Method", "Time", "Seq. nr", "Thread id" };
47
48 private List logMessages = new LinkedList ();
49 private Set listeners = new HashSet ();
50
51 private boolean isStarted;
52
53
56 private LogRecordList() {
57 super();
58 startLogging();
59 }
60
61
65 public static LogRecordList getInstance() {
66 if (instance == null) {
67 instance = new LogRecordList();
68 }
69 return instance;
70 }
71
72
77 public LogRecord getLogRecord(int rowIndex) {
78 if ((rowIndex >= 0) && (rowIndex < logMessages.size())) {
79 return (LogRecord ) logMessages.get(rowIndex);
80 } else {
81 throw new IndexOutOfBoundsException ("No such row in the table model [" + rowIndex + "]");
82 }
83 }
84
85
88 public void clear() {
89 int size = logMessages.size();
90 logMessages.clear();
91 fireListRemoveEvent(0, size);
92 }
93
94
98 public void startLogging() {
99 if (!isStarted) {
100 Logger log = Logger.getLogger("org.columba");
101 log.addHandler(this);
102 isStarted = true;
103 }
104 }
105
106
111 public void stopLogging() {
112 if (isStarted) {
113 Logger log = Logger.getLogger("org.columba");
114 log.removeHandler(this);
115 isStarted = false;
116 }
117 }
118
119
123
124 public void close() {
125 }
126
127
128 public void flush() {
129 }
130
131
132 public void publish(LogRecord record) {
133 logMessages.add(record);
134 if (logMessages.size() > 1000) {
135 logMessages.remove(0);
136 fireListUpdatedEvent();
137 } else {
139 fireNewRowEvent(logMessages.size());
140 }
142 }
143
144
148
152
158
159
160 public int getColumnCount() {
161 return COLUMNS.length;
162 }
163
164
165 public int getRowCount() {
166 return logMessages.size();
167 }
168
169
170 public boolean isCellEditable(int rowIndex, int columnIndex) {
171 return false;
172 }
173
174
175 public Class getColumnClass(int columnIndex) {
176 Class value;
177 switch (columnIndex) {
178 default:
179 throw new IndexOutOfBoundsException ("No such column in the table model [" + columnIndex + "]");
180 case 1:
181 case 2:
182 case 3:
183 value = String .class;
184 break;
185 case 0:
186 value = Level .class;
187 break;
188 case 4:
189 value = Date .class;
190 break;
191 case 5:
192 value = Long .class;
193 break;
194 case 6:
195 value = Integer .class;
196 break;
197 }
198 return value;
199 }
200
201
202 public Object getValueAt(int rowIndex, int columnIndex) {
203 Object value;
204 if ((rowIndex >= 0) && (rowIndex < logMessages.size())) {
205 LogRecord record = (LogRecord ) logMessages.get(rowIndex);
206 switch (columnIndex) {
207 default:
208 throw new IndexOutOfBoundsException ("No such column in the table model [" + columnIndex + "]");
209 case 0:
210 value = record.getLevel();
211 break;
212 case 1:
213 value = record.getMessage();
214 break;
215 case 2:
216 value = record.getSourceClassName();
217 break;
218 case 3:
219 value = record.getSourceMethodName();
220 break;
221 case 4:
222 value = new Date (record.getMillis());
223 break;
224 case 5:
225 value = new Long (record.getSequenceNumber());
226 break;
227 case 6:
228 value = new Integer (record.getThreadID());
229 break;
230 }
231 } else {
232 throw new IndexOutOfBoundsException ("No such row in the table model [" + rowIndex + "]");
233 }
234 return value;
235 }
236
237
238 public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
239
240 throw new UnsupportedOperationException ("The table model is not editable");
241 }
242
243
244 public String getColumnName(int columnIndex) {
245 return COLUMNS[columnIndex];
246 }
247
248
249 public void addTableModelListener(TableModelListener l) {
250 listeners.add(l);
251 }
252
253
254 public void removeTableModelListener(TableModelListener l) {
255 listeners.remove(l);
256 }
257
258
262
263 public int getSize() {
264 return logMessages.size();
265 }
266
267
268 public Object getElementAt(int index) {
269 return getLogRecord(index);
270 }
271
272
273 public void addListDataListener(ListDataListener l) {
274 listeners.add(l);
275 }
276
277
278 public void removeListDataListener(ListDataListener l) {
279 listeners.remove(l);
280 }
281
282
286 private void fireNewRowEvent(int row) {
287 ListDataEvent event = new ListDataEvent (this, ListDataEvent.INTERVAL_ADDED, row, row);
288 for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
289 ListDataListener listener = (ListDataListener ) iterator.next();
290 listener.intervalAdded(event);
291 }
292 }
293
294
297 private void fireListUpdatedEvent() {
298 ListDataEvent event = new ListDataEvent (this, ListDataEvent.CONTENTS_CHANGED, 0, logMessages.size());
299 for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
300 ListDataListener listener = (ListDataListener ) iterator.next();
301 listener.contentsChanged(event);
302 }
303 }
304
305
310 private void fireListRemoveEvent(int rowStart, int rowEnd) {
311 ListDataEvent event = new ListDataEvent (this, ListDataEvent.INTERVAL_REMOVED, rowStart, rowEnd);
312 for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
313 ListDataListener listener = (ListDataListener ) iterator.next();
314 listener.intervalRemoved(event);
315 }
316 }
317
318 }
319 |
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