Source Code Cross Referenced for ViewLogsSheet.java in  » Database-Client » squirrel-sql-2.6.5a » net » sourceforge » squirrel_sql » client » gui » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database Client » squirrel sql 2.6.5a » net.sourceforge.squirrel_sql.client.gui 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package net.sourceforge.squirrel_sql.client.gui;
002:
003:        /*
004:         * Copyright (C) 2002-2006 Colin Bell
005:         * colbell@users.sourceforge.net
006:         *
007:         * This library is free software; you can redistribute it and/or
008:         * modify it under the terms of the GNU Lesser General Public
009:         * License as published by the Free Software Foundation; either
010:         * version 2.1 of the License, or (at your option) any later version.
011:         *
012:         * This library is distributed in the hope that it will be useful,
013:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
014:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015:         * Lesser General Public License for more details.
016:         *
017:         * You should have received a copy of the GNU Lesser General Public
018:         * License along with this library; if not, write to the Free Software
019:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
020:         */
021:        import java.awt.BorderLayout;
022:        import java.awt.Container;
023:        import java.awt.event.*;
024:        import java.io.BufferedReader;
025:        import java.io.File;
026:        import java.io.FileReader;
027:        import java.io.FilenameFilter;
028:
029:        import javax.swing.*;
030:
031:        import net.sourceforge.squirrel_sql.client.IApplication;
032:        import net.sourceforge.squirrel_sql.client.preferences.SquirrelPreferences;
033:        import net.sourceforge.squirrel_sql.client.util.ApplicationFiles;
034:        import net.sourceforge.squirrel_sql.fw.gui.CursorChanger;
035:        import net.sourceforge.squirrel_sql.fw.gui.DirectoryListComboBox;
036:        import net.sourceforge.squirrel_sql.fw.gui.GUIUtils;
037:        import net.sourceforge.squirrel_sql.fw.gui.TextPopupMenu;
038:        import net.sourceforge.squirrel_sql.fw.gui.ToolBar;
039:        import net.sourceforge.squirrel_sql.fw.util.StringManager;
040:        import net.sourceforge.squirrel_sql.fw.util.StringManagerFactory;
041:        import net.sourceforge.squirrel_sql.fw.util.Utilities;
042:        import net.sourceforge.squirrel_sql.fw.util.log.ILogger;
043:        import net.sourceforge.squirrel_sql.fw.util.log.LoggerController;
044:
045:        /**
046:         * This sheet shows the SQuirreL log files.
047:         *
048:         * @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
049:         */
050:        public class ViewLogsSheet extends BaseInternalFrame {
051:            /** Internationalized strings for this class. */
052:            private static final StringManager s_stringMgr = StringManagerFactory
053:                    .getStringManager(ViewLogsSheet.class);
054:
055:            /** Logger for this class. */
056:            private static final ILogger s_log = LoggerController
057:                    .createLogger(ViewLogsSheet.class);
058:
059:            /** Singleton instance of this class. */
060:            private static ViewLogsSheet s_instance;
061:
062:            /** Application API. */
063:            private final IApplication _app;
064:
065:            /** Preferences */
066:            private final SquirrelPreferences _prefs;
067:
068:            /** Combo box containing all the log files. */
069:            private final LogsComboBox _logDirCmb = new LogsComboBox();
070:
071:            /** Text area containing the log contents. */
072:            private final JTextArea _logContentsTxt = new JTextArea(20, 50);
073:
074:            /** Button that refreshes the log contents. */
075:            private final JButton _refreshBtn = new JButton(s_stringMgr
076:                    .getString("ViewLogsSheet.refresh"));
077:
078:            private final JCheckBox _errorChkbox = new JCheckBox("Errors");
079:            private final JCheckBox _debugChkbox = new JCheckBox("Debug");
080:            private final JCheckBox _infoChkbox = new JCheckBox("Info");
081:
082:            /** Directory containing the log files. */
083:            private final File _logDir;
084:
085:            /** If <TT>true</TT> user is closing this window. */
086:            private boolean _closing = false;
087:
088:            /** If <TT>true</TT> log is being refreshed. */
089:            private boolean _refreshing = false;
090:
091:            /**
092:             * Ctor specifying the application API.
093:             *
094:             * @param	app		Application API.
095:             *
096:             * @throws	IllegalArgumentException
097:             *			Thrown if a <TT>null</TT> <TT>IApplication passed.
098:             */
099:            private ViewLogsSheet(IApplication app) {
100:                super (s_stringMgr.getString("ViewLogsSheet.title"), true, true,
101:                        true, true);
102:                if (app == null) {
103:                    throw new IllegalArgumentException("IApplication == null");
104:                }
105:
106:                _app = app;
107:                _prefs = _app.getSquirrelPreferences();
108:                _logDir = new ApplicationFiles().getExecutionLogFile()
109:                        .getParentFile();
110:                createUserInterface();
111:            }
112:
113:            /**
114:             * Show this window
115:             *
116:             * @param	app		Application API.
117:             *
118:             * @throws	IllegalArgumentException
119:             * 			Thrown if a <TT>null</TT> <TT>IApplication</TT> object passed.
120:             */
121:            public static synchronized void showSheet(IApplication app) {
122:                if (s_instance == null) {
123:                    s_instance = new ViewLogsSheet(app);
124:                    app.getMainFrame().addInternalFrame(s_instance, true, null);
125:                    GUIUtils.centerWithinDesktop(s_instance);
126:                }
127:
128:                final boolean wasVisible = s_instance.isVisible();
129:                if (!wasVisible) {
130:                    s_instance.setVisible(true);
131:                }
132:                s_instance.moveToFront();
133:                if (!wasVisible && !s_instance._refreshing) {
134:                    s_instance.startRefreshingLog();
135:                }
136:            }
137:
138:            public void dispose() {
139:                // Stop refresh if it is running.
140:                _closing = true;
141:
142:                synchronized (getClass()) {
143:                    s_instance = null;
144:                }
145:                super .dispose();
146:            }
147:
148:            /**
149:             * Close this sheet.
150:             */
151:            private void performClose() {
152:                dispose();
153:            }
154:
155:            /**
156:             * Start a thread to refrsh the log.
157:             */
158:            private synchronized void startRefreshingLog() {
159:                if (!_refreshing) {
160:                    _app.getThreadPool().addTask(new Refresher());
161:                }
162:            }
163:
164:            /**
165:             * Enables the log combo box and refresh button using the Swing event 
166:             * thread.
167:             */
168:            private void enableComponents(final boolean enabled) {
169:                GUIUtils.processOnSwingEventThread(new Runnable() {
170:                    public void run() {
171:                        _refreshBtn.setEnabled(enabled);
172:                        _logDirCmb.setEnabled(enabled);
173:                    }
174:                });
175:            }
176:
177:            /**
178:             * Refresh the log.
179:             */
180:            private void refreshLog() {
181:                enableComponents(false);
182:                CursorChanger cursorChg = new CursorChanger(this );
183:                cursorChg.show();
184:                try {
185:                    try {
186:                        SwingUtilities.invokeAndWait(new Runnable() {
187:                            public void run() {
188:                                _logContentsTxt.setText("");
189:                            }
190:                        });
191:                    } catch (Exception ex) {
192:                        // i18n[ViewLogsSheet.error.clearlogcontents=Error clearing the log contents]
193:                        s_log
194:                                .error(
195:                                        s_stringMgr
196:                                                .getString("ViewLogsSheet.error.clearlogcontents"),
197:                                        ex);
198:                    }
199:                    final File logFile = (File) _logDirCmb.getSelectedItem();
200:                    if (logFile != null) {
201:                        try {
202:                            if (logFile.exists() && logFile.canRead()) {
203:                                final BufferedReader rdr = new BufferedReader(
204:                                        new FileReader(logFile));
205:                                try {
206:                                    String line = null;
207:                                    StringBuffer chunk = new StringBuffer(16384);
208:                                    while ((line = rdr.readLine()) != null) {
209:                                        if (_closing) {
210:                                            return;
211:                                        }
212:
213:                                        if (chunk.length() > 16000) {
214:                                            final String finalLine = chunk
215:                                                    .toString();
216:                                            SwingUtilities
217:                                                    .invokeAndWait(new Runnable() {
218:                                                        public void run() {
219:                                                            if (!_closing) {
220:                                                                _logContentsTxt
221:                                                                        .append(finalLine);
222:                                                            }
223:                                                        }
224:                                                    });
225:                                            chunk = new StringBuffer(16384);
226:                                        } else {
227:                                            if (shouldAppendLineToChunk(line)) {
228:                                                chunk.append(line).append('\n');
229:                                            }
230:                                        }
231:                                    }
232:
233:                                    if (_closing) {
234:                                        return;
235:                                    }
236:
237:                                    final String finalLine = chunk.toString();
238:                                    SwingUtilities
239:                                            .invokeAndWait(new Runnable() {
240:                                                public void run() {
241:                                                    if (!_closing) {
242:                                                        _logContentsTxt
243:                                                                .append(finalLine);
244:                                                    }
245:                                                }
246:                                            });
247:                                } finally {
248:                                    rdr.close();
249:                                }
250:                            }
251:                        } catch (Exception ex) {
252:                            // i18n[ViewLogsSheet.error.processinglogfile=Error occured processing log file]
253:                            final String msg = s_stringMgr
254:                                    .getString("ViewLogsSheet.error.processinglogfile");
255:                            s_log.error(msg, ex);
256:                        }
257:                    } else {
258:                        // i18n[ViewLogsSheet.info.nulllogfile=Null log file name]
259:                        s_log.debug(s_stringMgr
260:                                .getString("ViewLogsSheet.info.nulllogfile"));
261:                    }
262:
263:                    if (_closing) {
264:                        return;
265:                    }
266:
267:                    // Position to the start of the last line in log.
268:                    try {
269:                        int pos = Math.max(0, _logContentsTxt.getText()
270:                                .length() - 1);
271:                        int line = _logContentsTxt.getLineOfOffset(pos);
272:                        final int finalpos = _logContentsTxt
273:                                .getLineStartOffset(line);
274:                        SwingUtilities.invokeAndWait(new Runnable() {
275:                            public void run() {
276:                                _logContentsTxt.setCaretPosition(finalpos);
277:                            }
278:                        });
279:                    } catch (Exception ex) {
280:                        // i18n[ViewLogsSheet.error.setcaret=Error positioning caret in log text component]
281:                        s_log.error(s_stringMgr
282:                                .getString("ViewLogsSheet.error.setcaret"), ex);
283:                    }
284:                } finally {
285:                    enableComponents(true);
286:                    _refreshing = false;
287:                    cursorChg.restore();
288:                }
289:            }
290:
291:            /**
292:               199828 [Foo Thread] message 
293:             * @param line
294:             * @return
295:             */
296:            private boolean shouldAppendLineToChunk(String line) {
297:                boolean result = false;
298:                if (line == null || line.length() == 0) {
299:                    return false;
300:                }
301:                if (_errorChkbox.isSelected() && _debugChkbox.isSelected()
302:                        && _infoChkbox.isSelected()) {
303:                    return true;
304:                }
305:                int threadNameEndIdx = line.indexOf("]");
306:                if (threadNameEndIdx > -1) {
307:                    char levelChar = line.charAt(threadNameEndIdx + 2);
308:                    if (_errorChkbox.isSelected() && levelChar == 'E') {
309:                        result = true;
310:                    }
311:                    if (_debugChkbox.isSelected() && levelChar == 'D') {
312:                        result = true;
313:                    }
314:                    if (_infoChkbox.isSelected() && levelChar == 'I') {
315:                        result = true;
316:                    }
317:                    if (levelChar != 'E' && levelChar != 'D'
318:                            && levelChar != 'I') {
319:                        result = true;
320:                    }
321:                } else {
322:                    result = true;
323:                }
324:                return result;
325:            }
326:
327:            /**
328:             * Create user interface.
329:             */
330:            private void createUserInterface() {
331:                setDefaultCloseOperation(DISPOSE_ON_CLOSE);
332:                GUIUtils.makeToolWindow(this , true);
333:                Container contentPane = getContentPane();
334:                contentPane.setLayout(new BorderLayout());
335:                contentPane.add(createToolBar(), BorderLayout.NORTH);
336:                contentPane.add(createMainPanel(), BorderLayout.CENTER);
337:                contentPane.add(createButtonsPanel(), BorderLayout.SOUTH);
338:                pack();
339:
340:                AbstractAction closeAction = new AbstractAction() {
341:                    public void actionPerformed(ActionEvent actionEvent) {
342:                        performClose();
343:                    }
344:                };
345:                KeyStroke escapeStroke = KeyStroke.getKeyStroke(
346:                        KeyEvent.VK_ESCAPE, 0);
347:                getRootPane().getInputMap(
348:                        JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(
349:                        escapeStroke, "CloseAction");
350:                getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW)
351:                        .put(escapeStroke, "CloseAction");
352:                getRootPane().getInputMap(JComponent.WHEN_FOCUSED).put(
353:                        escapeStroke, "CloseAction");
354:                getRootPane().getActionMap().put("CloseAction", closeAction);
355:
356:            }
357:
358:            private ToolBar createToolBar() {
359:                final ToolBar tb = new ToolBar();
360:                tb.setUseRolloverButtons(true);
361:                tb.setFloatable(false);
362:
363:                final Object[] args = { getTitle(), _logDir.getAbsolutePath() };
364:                final String lblTitle = s_stringMgr.getString(
365:                        "ViewLogsSheet.storedin", args);
366:                final JLabel lbl = new JLabel(lblTitle);
367:                lbl.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 0));
368:                tb.add(lbl);
369:
370:                return tb;
371:            }
372:
373:            /**
374:             * Create the main panel containing the log details and selector.
375:             */
376:            private JPanel createMainPanel() {
377:                //_logContentsTxt.setEditable(false);
378:                final TextPopupMenu pop = new TextPopupMenu();
379:                pop.setTextComponent(_logContentsTxt);
380:                _logContentsTxt.addMouseListener(new MouseAdapter() {
381:                    public void mousePressed(MouseEvent evt) {
382:                        if (evt.isPopupTrigger()) {
383:                            pop
384:                                    .show(evt.getComponent(), evt.getX(), evt
385:                                            .getY());
386:                        }
387:                    }
388:
389:                    public void mouseReleased(MouseEvent evt) {
390:                        if (evt.isPopupTrigger()) {
391:                            pop
392:                                    .show(evt.getComponent(), evt.getX(), evt
393:                                            .getY());
394:                        }
395:                    }
396:                });
397:
398:                File appLogFile = new ApplicationFiles().getExecutionLogFile();
399:                _logDirCmb.load(appLogFile.getParentFile());
400:
401:                if (_logDirCmb.getModel().getSize() > 0) {
402:                    _logDirCmb.setSelectedItem(appLogFile.getName());
403:                }
404:
405:                // Done after the set of the selected item above so that we control
406:                // when the initial build is done. We want to make sure that under all
407:                // versions of the JDK that the window is shown before the (possibly
408:                // lengthy) refresh starts.
409:                _logDirCmb.addActionListener(new ChangeLogListener());
410:
411:                final JPanel pnl = new JPanel(new BorderLayout());
412:                pnl.add(_logDirCmb, BorderLayout.NORTH);
413:                _logContentsTxt.setBorder(BorderFactory.createEmptyBorder(0, 1,
414:                        0, 0));
415:                pnl.add(new JScrollPane(_logContentsTxt), BorderLayout.CENTER);
416:
417:                return pnl;
418:            }
419:
420:            /**
421:             * Create panel at bottom containing the buttons.
422:             */
423:            private JPanel createButtonsPanel() {
424:                JPanel pnl = new JPanel();
425:
426:                pnl.add(_refreshBtn);
427:                _refreshBtn.addActionListener(new ActionListener() {
428:                    public void actionPerformed(ActionEvent evt) {
429:                        startRefreshingLog();
430:                    }
431:                });
432:
433:                JButton closeBtn = new JButton(s_stringMgr
434:                        .getString("ViewLogsSheet.close"));
435:                closeBtn.addActionListener(new ActionListener() {
436:                    public void actionPerformed(ActionEvent evt) {
437:                        performClose();
438:                    }
439:                });
440:                pnl.add(closeBtn);
441:
442:                _errorChkbox.setSelected(_prefs.getShowErrorLogMessages());
443:                _errorChkbox.addActionListener(new ActionListener() {
444:                    public void actionPerformed(ActionEvent e) {
445:                        _prefs.setShowErrorLogMessages(_errorChkbox
446:                                .isSelected());
447:                    }
448:                });
449:                _infoChkbox.setSelected(_prefs.getShowInfoLogMessages());
450:                _infoChkbox.addActionListener(new ActionListener() {
451:                    public void actionPerformed(ActionEvent e) {
452:                        _prefs.setShowInfoLogMessages(_infoChkbox.isSelected());
453:                    }
454:                });
455:                _debugChkbox.setSelected(_prefs.getShowDebugLogMessage());
456:                _debugChkbox.addActionListener(new ActionListener() {
457:                    public void actionPerformed(ActionEvent e) {
458:                        _prefs.setShowDebugLogMessages(_debugChkbox
459:                                .isSelected());
460:                    }
461:                });
462:                pnl.add(_errorChkbox);
463:                pnl.add(_infoChkbox);
464:                pnl.add(_debugChkbox);
465:
466:                GUIUtils.setJButtonSizesTheSame(new JButton[] { closeBtn,
467:                        _refreshBtn });
468:                getRootPane().setDefaultButton(closeBtn);
469:
470:                return pnl;
471:            }
472:
473:            private final class ChangeLogListener implements  ActionListener {
474:                public void actionPerformed(ActionEvent evt) {
475:                    ViewLogsSheet.this .startRefreshingLog();
476:                }
477:            }
478:
479:            private final class Refresher implements  Runnable {
480:                public void run() {
481:                    ViewLogsSheet.this .refreshLog();
482:                }
483:            }
484:
485:            private static final class LogsComboBox extends
486:                    DirectoryListComboBox {
487:                private File _dir;
488:
489:                public void load(File dir, FilenameFilter filter) {
490:                    _dir = dir;
491:                    super .load(dir, filter);
492:                }
493:
494:                public void addItem(Object anObject) {
495:                    super .addItem(new LogFile(_dir, anObject.toString()));
496:                }
497:            }
498:
499:            private static final class LogFile extends File {
500:                private final String _stringRep;
501:
502:                LogFile(File dir, String name) {
503:                    super (dir, name);
504:                    StringBuffer buf = new StringBuffer();
505:                    buf.append(getName()).append(" (").append(
506:                            Utilities.formatSize(length())).append(")");
507:                    _stringRep = buf.toString();
508:                }
509:
510:                public String toString() {
511:                    return _stringRep;
512:                }
513:            }
514:        }
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