Source Code Cross Referenced for DbUser.java in  » Forum » yazd » com » Yasna » forum » database » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Forum » yazd » com.Yasna.forum.database 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Copyright (C) 2001 Yasna.com. All rights reserved.
003:         *
004:         * ===================================================================
005:         * The Apache Software License, Version 1.1
006:         *
007:         * Redistribution and use in source and binary forms, with or without
008:         * modification, are permitted provided that the following conditions
009:         * are met:
010:         *
011:         * 1. Redistributions of source code must retain the above copyright
012:         *    notice, this list of conditions and the following disclaimer.
013:         *
014:         * 2. Redistributions in binary form must reproduce the above copyright
015:         *    notice, this list of conditions and the following disclaimer in
016:         *    the documentation and/or other materials provided with the
017:         *    distribution.
018:         *
019:         * 3. The end-user documentation included with the redistribution,
020:         *    if any, must include the following acknowledgment:
021:         *       "This product includes software developed by
022:         *        Yasna.com (http://www.yasna.com)."
023:         *    Alternately, this acknowledgment may appear in the software itself,
024:         *    if and wherever such third-party acknowledgments normally appear.
025:         *
026:         * 4. The names "Yazd" and "Yasna.com" must not be used to
027:         *    endorse or promote products derived from this software without
028:         *    prior written permission. For written permission, please
029:         *    contact yazd@yasna.com.
030:         *
031:         * 5. Products derived from this software may not be called "Yazd",
032:         *    nor may "Yazd" appear in their name, without prior written
033:         *    permission of Yasna.com.
034:         *
035:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
036:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038:         * DISCLAIMED.  IN NO EVENT SHALL YASNA.COM OR
039:         * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041:         * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042:         * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043:         * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044:         * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045:         * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046:         * SUCH DAMAGE.
047:         * ====================================================================
048:         *
049:         * This software consists of voluntary contributions made by many
050:         * individuals on behalf of Yasna.com. For more information
051:         * on Yasna.com, please see <http://www.yasna.com>.
052:         */
053:
054:        /**
055:         * Copyright (C) 2000 CoolServlets.com. All rights reserved.
056:         *
057:         * ===================================================================
058:         * The Apache Software License, Version 1.1
059:         *
060:         * Redistribution and use in source and binary forms, with or without
061:         * modification, are permitted provided that the following conditions
062:         * are met:
063:         *
064:         * 1. Redistributions of source code must retain the above copyright
065:         *    notice, this list of conditions and the following disclaimer.
066:         *
067:         * 2. Redistributions in binary form must reproduce the above copyright
068:         *    notice, this list of conditions and the following disclaimer in
069:         *    the documentation and/or other materials provided with the
070:         *    distribution.
071:         *
072:         * 3. The end-user documentation included with the redistribution,
073:         *    if any, must include the following acknowledgment:
074:         *       "This product includes software developed by
075:         *        CoolServlets.com (http://www.coolservlets.com)."
076:         *    Alternately, this acknowledgment may appear in the software itself,
077:         *    if and wherever such third-party acknowledgments normally appear.
078:         *
079:         * 4. The names "Jive" and "CoolServlets.com" must not be used to
080:         *    endorse or promote products derived from this software without
081:         *    prior written permission. For written permission, please
082:         *    contact webmaster@coolservlets.com.
083:         *
084:         * 5. Products derived from this software may not be called "Jive",
085:         *    nor may "Jive" appear in their name, without prior written
086:         *    permission of CoolServlets.com.
087:         *
088:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
089:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
090:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
091:         * DISCLAIMED.  IN NO EVENT SHALL COOLSERVLETS.COM OR
092:         * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
093:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
094:         * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
095:         * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
096:         * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
097:         * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
098:         * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
099:         * SUCH DAMAGE.
100:         * ====================================================================
101:         *
102:         * This software consists of voluntary contributions made by many
103:         * individuals on behalf of CoolServlets.com. For more information
104:         * on CoolServlets.com, please see <http://www.coolservlets.com>.
105:         */package com.Yasna.forum.database;
106:
107:        import com.Yasna.forum.*;
108:        import com.Yasna.forum.locale.YazdLocale;
109:        import com.Yasna.util.*;
110:
111:        import java.util.*;
112:        import java.text.*;
113:        import java.sql.*;
114:        import java.security.*;
115:
116:        /**
117:         * Database implementation of the User interface. Additionally, it filters all
118:         * HTML tags from fields before returning them for security purposes.<p>
119:         *
120:         * Use of the Yazd user system is optional. There a number of different ways
121:         * to create your own user system or to integrate into an existing user
122:         * system:<ul>
123:         *   <li> Edit the source of this class and modify the database queries to match
124:         *     your user system.
125:         *   <li> Implement a set of custom classes and tell the ForumFactory to load
126:         *     them. In this case, it is still recommended to use the Yazd user API
127:         *     since that will mean much less reimplementation work in the other
128:         *     classes.</ul>
129:         *
130:         * If you can follow the Yazd API for your own user data, but need access
131:         * within Yazd to extended user properties, such as addresses or other
132:         * personal data, and easy solution is to adapt the user properties facility
133:         * to load and access this data.
134:         */
135:        public class DbUser implements  User, Cacheable {
136:
137:            /** DATABASE QUERIES **/
138:            private static final String LOAD_PROPERTIES = "SELECT name, propValue FROM yazdUserProp WHERE userID=?";
139:            private static final String LOAD_LASTPOST = "select max(creationDate) as lastpost from yazdMessage where userID=?";
140:            private static final String DELETE_PROPERTIES = "DELETE FROM yazdUserProp WHERE userID=?";
141:            private static final String INSERT_PROPERTY = "INSERT INTO yazdUserProp(userID,name,propValue) VALUES(?,?,?)";
142:            private static final String LOAD_USER_BY_USERNAME = "SELECT * FROM "
143:                    + SystemProperty.getProperty("User.Table")
144:                    + " WHERE "
145:                    + SystemProperty.getProperty("User.Column.Username") + "=?";
146:            private static final String LOAD_USER_BY_ID = "SELECT * FROM "
147:                    + SystemProperty.getProperty("User.Table") + " WHERE "
148:                    + SystemProperty.getProperty("User.Column.UserID") + "=?";
149:            private static final String INSERT_USER = "INSERT INTO "
150:                    + SystemProperty.getProperty("User.Table") + "("
151:                    + SystemProperty.getProperty("User.Column.UserID") + ","
152:                    + SystemProperty.getProperty("User.Column.Username") + ","
153:                    + SystemProperty.getProperty("User.Column.PasswordHash")
154:                    + ",email)" + "VALUES(?,?,?,?)";
155:            private static final String SAVE_USER = "UPDATE "
156:                    + SystemProperty.getProperty("User.Table") + " SET "
157:                    + SystemProperty.getProperty("User.Column.PasswordHash")
158:                    + "=?, " + SystemProperty.getProperty("User.Column.Email")
159:                    + "=?, " + SystemProperty.getProperty("User.Column.Name")
160:                    + "=? " + " WHERE "
161:                    + SystemProperty.getProperty("User.Column.UserID") + "=?";
162:            private static final String DELETE_PERMISSIONS = "DELETE FROM yazdUserPerm WHERE userID=?";
163:            private static final String INSERT_PERMISSION = "INSERT INTO yazdUserPerm(userID,forumID,permission) VALUES(?,?,?)";
164:            private static final String INSERT_AUTO_GROUP = "insert into yazdGroupUser(groupID,userID,administrator) select groupID,?,0 from yazdGroup where automember=1";
165:
166:            /**
167:             * user id of -2 means no user id has been set yet. -1 is reserved for
168:             * "anonymous user" and 0 is reserved for "all users".
169:             */
170:            private int id = -2;
171:            private String username;
172:            private String passwordHash;
173:            private String name = "";
174:            private String email;
175:            private boolean nameVisible = true;
176:            private boolean emailVisible = true;
177:            private boolean threadSubscribe = false;
178:            private long lastlogin;
179:            private long regdate;
180:            private long lastpost = -1;
181:            private Properties properties;
182:            private Object propertyLock = new Object();
183:
184:            /**
185:             * Create a new DbUser with all required fields.
186:             *
187:             * @param username the username for the user.
188:             * @param password a password for the user.
189:             * @param email the email address for the user.
190:             */
191:            protected DbUser(String username, String password, String email)
192:                    throws UserAlreadyExistsException {
193:                this .id = DbSequenceManager.nextID("User");
194:                this .username = username;
195:                //Compute hash of password.
196:                this .passwordHash = StringUtils.hash(password);
197:                this .email = email;
198:                properties = new Properties();
199:                insertIntoDb();
200:                insertAutoGroupMembership();
201:                setProperty("namevisible", Boolean.toString(nameVisible));
202:                setProperty("emailvisible", Boolean.toString(emailVisible));
203:                setProperty("lastlogin", Long.toString(Calendar.getInstance()
204:                        .getTimeInMillis()));
205:                setProperty("regdate", Long.toString(Calendar.getInstance()
206:                        .getTimeInMillis()));
207:                setProperty("ranking", "3");
208:                if (!Boolean.valueOf(
209:                        PropertyManager.getProperty("User.DisableActivation"))
210:                        .booleanValue()) {
211:                    String code = StringUtils.randomString(7);
212:                    setProperty("notactive", code);
213:                    if (this .email != null && !"".equals(email)) {
214:                        // ok ready to send mail to user
215:                        String emailBody = PropertyManager
216:                                .getProperty("yazdActivate.MailBody")
217:                                + "             \n\r"
218:                                + PropertyManager.getProperty("yazdUrl")
219:                                + "activate.jsp?user="
220:                                + this .id
221:                                + "&code="
222:                                + code;
223:                        MailSender
224:                                .send(
225:                                        PropertyManager
226:                                                .getProperty("yazdMailSMTPServer"),
227:                                        PropertyManager
228:                                                .getProperty("yazdMailFrom"),
229:                                        this .email,
230:                                        PropertyManager
231:                                                .getProperty("yazdActivate.MailSubject"),
232:                                        emailBody);
233:                    }
234:                }
235:
236:            }
237:
238:            /**
239:             * Load a DbUser object specified by userID.
240:             *
241:             * @param userID the userID of the user to load.
242:             */
243:            protected DbUser(int userID) throws UserNotFoundException {
244:                this .id = userID;
245:                loadFromDb();
246:                loadProperties();
247:                loadLastPost();
248:                //This is done to be backward compatible with Yazd 1.0
249:                nameVisible = Boolean.valueOf(getProperty("namevisible"))
250:                        .booleanValue();
251:                emailVisible = Boolean.valueOf(getProperty("emailvisible"))
252:                        .booleanValue();
253:                threadSubscribe = Boolean.valueOf(
254:                        getProperty("threadSubscribe")).booleanValue();
255:                try {
256:                    lastlogin = Long.parseLong(getProperty("lastlogin"));
257:                } catch (Exception e) {
258:                    lastlogin = 0;
259:                }
260:                try {
261:                    regdate = Long.parseLong(getProperty("regdate"));
262:                } catch (Exception e) {
263:                    regdate = 0;
264:                }
265:                if (getProperty("ranking") == null) {
266:                    setProperty("ranking", "3");
267:                }
268:            }
269:
270:            /**
271:             * Load a DbUser object specified by username.
272:             *
273:             * @param username the username of the user to load.
274:             */
275:            protected DbUser(String username) throws UserNotFoundException {
276:                this .username = username;
277:                loadFromDb();
278:                loadProperties();
279:                loadLastPost();
280:                //This is done to be backward compatible with Yazd 1.0
281:                nameVisible = Boolean.valueOf(getProperty("namevisible"))
282:                        .booleanValue();
283:                emailVisible = Boolean.valueOf(getProperty("emailvisible"))
284:                        .booleanValue();
285:                threadSubscribe = Boolean.valueOf(
286:                        getProperty("threadSubscribe")).booleanValue();
287:                try {
288:                    lastlogin = Long.parseLong(getProperty("lastlogin"));
289:                } catch (Exception e) {
290:                    lastlogin = 0;
291:                }
292:                try {
293:                    regdate = Long.parseLong(getProperty("regdate"));
294:                } catch (Exception e) {
295:                    regdate = 0;
296:                }
297:                if (getProperty("ranking") == null) {
298:                    setProperty("ranking", "3");
299:                }
300:
301:            }
302:
303:            //FROM THE USER INTERFACE//
304:            protected void activateUser() {
305:                properties.remove("notactive");
306:                saveProperties();
307:            }
308:
309:            public int getID() {
310:                return id;
311:            }
312:
313:            public boolean isAnonymous() {
314:                return (id == -1);
315:            }
316:
317:            public String getUsername() {
318:                return StringUtils.escapeHTMLTags(username);
319:            }
320:
321:            public String getName() {
322:                return StringUtils.escapeHTMLTags(name);
323:            }
324:
325:            public void setName(String name) throws UnauthorizedException {
326:                this .name = name;
327:                saveToDb();
328:            }
329:
330:            public boolean isNameVisible() {
331:                return nameVisible;
332:            }
333:
334:            public void setNameVisible(boolean visible)
335:                    throws UnauthorizedException {
336:                this .nameVisible = visible;
337:                saveToDb();
338:            }
339:
340:            public boolean getThreadSubscribe() {
341:                return threadSubscribe;
342:            }
343:
344:            public Calendar getLastLogin() {
345:                Calendar cal = Calendar.getInstance();
346:                cal.setTimeInMillis(lastlogin);
347:                return cal;
348:            }
349:
350:            public Calendar getLastPost() {
351:                // This date might be cached and therefore incorrect.
352:                if (lastpost < 0) {
353:                    // this means that the user hasn't posted a message yet and we are returning a null value.
354:                    return null;
355:                } else {
356:                    Calendar cal = Calendar.getInstance();
357:                    cal.setTimeInMillis(lastpost);
358:                    return cal;
359:                }
360:            }
361:
362:            public Locale getUserLocale() {
363:                String locale = this .getProperty("locale");
364:                if (locale == null) {
365:                    //if there is no user locale then return the default locale
366:                    return YazdLocale.getDefaultYazdLocale();
367:                }
368:                String lang = null, country = null, variant = null;
369:                int pos = 0;
370:                int delPos = 0;
371:                if ((delPos = locale.indexOf(",", pos)) != -1) {
372:                    lang = locale.substring(pos, delPos);
373:                    pos = delPos + 1; // next character after the delimiter
374:                } else if (pos <= locale.length()) {
375:                    lang = locale.substring(pos);
376:                    pos = locale.length() + 1;
377:                }
378:                if ((delPos = locale.indexOf(",", pos)) != -1) {
379:                    country = locale.substring(pos, delPos);
380:                    pos = delPos + 1; // next character after the delimiter
381:                } else if (pos <= locale.length()) {
382:                    country = locale.substring(pos);
383:                    pos = locale.length() + 1;
384:                }
385:                if (pos <= locale.length()) {
386:                    // add rest of String
387:                    variant = locale.substring(pos);
388:
389:                }
390:                if (variant != null) {
391:                    return new Locale(lang, country, variant);
392:                } else if (country != null) {
393:                    //this is the one that should return most values.
394:                    return new Locale(lang, country);
395:                } else {
396:                    return new Locale(lang);
397:                }
398:
399:            }
400:
401:            public TimeZone getUserTimeZone() {
402:                String timezone = this .getProperty("timezone");
403:                if (timezone == null) {
404:                    //if there is no user locale then return the default locale
405:                    return TimeZone.getDefault();
406:                }
407:                return TimeZone.getTimeZone(timezone);
408:            }
409:
410:            public void setUserTimeZone(String timezoneid)
411:                    throws UnauthorizedException {
412:                this .setProperty("timezone", timezoneid);
413:            }
414:
415:            public void setUserLocale(Locale locale)
416:                    throws UnauthorizedException {
417:                this .setProperty("Locale", locale.getLanguage()
418:                        + ("".equals(locale.getCountry()) ? "" : ","
419:                                + locale.getCountry())
420:                        + ("".equals(locale.getVariant()) ? "" : ","
421:                                + locale.getVariant()));
422:            }
423:
424:            public void setThreadSubscribe(boolean emailReply)
425:                    throws UnauthorizedException {
426:                this .threadSubscribe = emailReply;
427:                setProperty("threadSubscribe", Boolean.toString(emailReply));
428:            }
429:
430:            public void setPassword(String password)
431:                    throws UnauthorizedException {
432:                //Compute hash of password.
433:                this .passwordHash = StringUtils.hash(password);
434:                saveToDb();
435:            }
436:
437:            public String getPasswordHash() throws UnauthorizedException {
438:                return passwordHash;
439:            }
440:
441:            public void setPasswordHash(String passwordHash) {
442:                this .passwordHash = passwordHash;
443:                saveToDb();
444:            }
445:
446:            public String getEmail() {
447:                return StringUtils.escapeHTMLTags(email);
448:            }
449:
450:            public void setEmail(String email) throws UnauthorizedException {
451:                this .email = email;
452:                saveToDb();
453:            }
454:
455:            public boolean isEmailVisible() {
456:                return emailVisible;
457:            }
458:
459:            public void setEmailVisible(boolean visible)
460:                    throws UnauthorizedException {
461:                this .emailVisible = visible;
462:                setProperty("emailvisible", Boolean.toString(visible));
463:            }
464:
465:            public String getProperty(String name) {
466:                return StringUtils
467:                        .escapeHTMLTags((String) properties.get(name));
468:            }
469:
470:            public Enumeration propertyNames() {
471:                return properties.propertyNames();
472:            }
473:
474:            public void setProperty(String name, String value) {
475:                properties.put(name, value);
476:                saveProperties();
477:            }
478:
479:            public ForumPermissions getPermissions(Authorization authorization) {
480:                if (authorization.getUserID() == id || id == -1 || id == 0) {
481:                    return new ForumPermissions(false, false, false, true,
482:                            false, false, false, false);
483:                } else {
484:                    return ForumPermissions.none();
485:                }
486:            }
487:
488:            public boolean hasPermission(int type) {
489:                return true;
490:            }
491:
492:            //FROM THE CACHEABLE INTERFACE//
493:
494:            public int getSize() {
495:                //Approximate the size of the object in bytes by calculating the size
496:                //of each field.
497:                int size = 0;
498:                size += CacheSizes.sizeOfObject(); //overhead of object
499:                size += CacheSizes.sizeOfInt(); //id
500:                size += CacheSizes.sizeOfString(username); //username
501:                size += CacheSizes.sizeOfString(passwordHash); //password
502:                size += CacheSizes.sizeOfString(name); //name
503:                size += CacheSizes.sizeOfString(email); //email
504:                size += CacheSizes.sizeOfBoolean(); //nameVisible
505:                size += CacheSizes.sizeOfBoolean(); //emailVisible
506:                size += CacheSizes.sizeOfObject(); //property lock
507:                size += CacheSizes.sizeOfProperties(properties);//properties object
508:                size += CacheSizes.sizeOfLong(); //last login
509:                size += CacheSizes.sizeOfLong(); //last post
510:
511:                return size;
512:            }
513:
514:            //OTHER METHODS
515:
516:            /**
517:             * Returns a String representation of the User object using the username.
518:             *
519:             * @return a String representation of the User object.
520:             */
521:            public String toString() {
522:                return username;
523:            }
524:
525:            public int hashCode() {
526:                return id;
527:            }
528:
529:            public boolean equals(Object object) {
530:                if (this  == object) {
531:                    return true;
532:                }
533:                if (object != null && object instanceof  DbUser) {
534:                    return id == ((DbUser) object).getID();
535:                } else {
536:                    return false;
537:                }
538:            }
539:
540:            /**
541:             * Loads user properties from the database.
542:             */
543:            private void loadProperties() {
544:                //If "anonymous" or "all users", do nothing.
545:                if (id == -1 || id == 0) {
546:                    properties = new Properties();
547:                    return;
548:                }
549:                //Acquire a lock so that no other property loading or saving can be
550:                //performed at the same time.
551:                synchronized (propertyLock) {
552:                    Properties newProps = new Properties();
553:                    Connection con = null;
554:                    PreparedStatement pstmt = null;
555:                    try {
556:                        con = DbConnectionManager.getConnection();
557:                        pstmt = con.prepareStatement(LOAD_PROPERTIES);
558:                        pstmt.setInt(1, id);
559:                        ResultSet rs = pstmt.executeQuery();
560:                        while (rs.next()) {
561:                            String name = rs.getString("name");
562:                            String value = rs.getString("propValue");
563:                            newProps.put(name, value);
564:                        }
565:                    } catch (SQLException sqle) {
566:                        System.err.println("Error in DbUser:loadProperties():"
567:                                + sqle);
568:                        sqle.printStackTrace();
569:                    } finally {
570:                        try {
571:                            pstmt.close();
572:                        } catch (Exception e) {
573:                            e.printStackTrace();
574:                        }
575:                        try {
576:                            con.close();
577:                        } catch (Exception e) {
578:                            e.printStackTrace();
579:                        }
580:                    }
581:                    this .properties = newProps;
582:                }
583:            }
584:
585:            /**
586:             * Loads user properties from the database.
587:             */
588:            private void loadLastPost() {
589:                if (id == -1 || id == 0) {
590:                    return;
591:                }
592:                Connection con = null;
593:                PreparedStatement pstmt = null;
594:                try {
595:                    con = DbConnectionManager.getConnection();
596:                    pstmt = con.prepareStatement(LOAD_LASTPOST);
597:                    pstmt.setInt(1, id);
598:                    ResultSet rs = pstmt.executeQuery();
599:                    if (rs.next()) {
600:                        lastpost = Long.parseLong(rs.getString("lastpost"));
601:                    }
602:                } catch (SQLException sqle) {
603:                    System.err.println("Error in DbUser:loadProperties():"
604:                            + sqle);
605:                    sqle.printStackTrace();
606:                } catch (NumberFormatException e) {
607:                    lastpost = -1;
608:                } finally {
609:                    try {
610:                        pstmt.close();
611:                    } catch (Exception e) {
612:                        e.printStackTrace();
613:                    }
614:                    try {
615:                        con.close();
616:                    } catch (Exception e) {
617:                        e.printStackTrace();
618:                    }
619:                }
620:
621:            }
622:
623:            /**
624:             * Saves user properties to the database.
625:             */
626:            private void saveProperties() {
627:                //If "anonymous" or "all users", do nothing.
628:                if (id == -1 || id == 0) {
629:                    return;
630:                }
631:                //Acquire a lock so that no other property loading or saving can be
632:                //performed at the same time.
633:                synchronized (propertyLock) {
634:                    Connection con = null;
635:                    PreparedStatement pstmt = null;
636:                    try {
637:                        con = DbConnectionManager.getConnection();
638:                        //Delete all old values.
639:                        pstmt = con.prepareStatement(DELETE_PROPERTIES);
640:                        pstmt.setInt(1, id);
641:                        pstmt.execute();
642:                        pstmt.close();
643:                        //Now insert new values.
644:                        pstmt = con.prepareStatement(INSERT_PROPERTY);
645:                        Enumeration enume = properties.keys();
646:                        while (enume.hasMoreElements()) {
647:                            String name = (String) enume.nextElement();
648:                            String value = (String) properties.get(name);
649:                            pstmt.setInt(1, id);
650:                            pstmt.setString(2, name);
651:                            pstmt.setString(3, value);
652:                            pstmt.executeUpdate();
653:                        }
654:                    } catch (SQLException sqle) {
655:                        System.err.println(sqle);
656:                    } finally {
657:                        try {
658:                            pstmt.close();
659:                        } catch (Exception e) {
660:                            e.printStackTrace();
661:                        }
662:                        try {
663:                            con.close();
664:                        } catch (Exception e) {
665:                            e.printStackTrace();
666:                        }
667:                    }
668:                }
669:            }
670:
671:            /**
672:             * Load the user data from the database.
673:             */
674:            private void loadFromDb() throws UserNotFoundException {
675:                //If the user is anonymous or "all users", do nothing.
676:                if (id == -1 || id == 0) {
677:                    return;
678:                }
679:                // Otherwise, select user data from User table and fill in relevant fields.
680:                String query;
681:                //We may want to do a username lookup.
682:                if (username != null) {
683:                    query = LOAD_USER_BY_USERNAME;
684:                }
685:                //Otherwise, a lookup by id
686:                else {
687:                    query = LOAD_USER_BY_ID;
688:                }
689:                Connection con = null;
690:                PreparedStatement pstmt = null;
691:                try {
692:                    con = DbConnectionManager.getConnection();
693:                    pstmt = con.prepareStatement(query);
694:                    if (username != null) {
695:                        pstmt.setString(1, username);
696:                    } else {
697:                        pstmt.setInt(1, id);
698:                    }
699:
700:                    ResultSet rs = pstmt.executeQuery();
701:                    if (!rs.next()) {
702:                        throw new UserNotFoundException("Failed to read user "
703:                                + id + " from database.");
704:                    }
705:                    this .id = rs.getInt(SystemProperty
706:                            .getProperty("User.Column.UserID"));
707:                    this .username = rs.getString(SystemProperty
708:                            .getProperty("User.Column.Username"));
709:                    this .passwordHash = rs.getString(SystemProperty
710:                            .getProperty("User.Column.PasswordHash"));
711:                    this .name = rs.getString(SystemProperty
712:                            .getProperty("User.Column.Name"));
713:                    this .email = rs.getString(SystemProperty
714:                            .getProperty("User.Column.Email"));
715:                } catch (SQLException sqle) {
716:                    throw new UserNotFoundException("Failed to read user " + id
717:                            + " from database.", sqle);
718:                } finally {
719:                    try {
720:                        pstmt.close();
721:                    } catch (Exception e) {
722:                        e.printStackTrace();
723:                    }
724:                    try {
725:                        con.close();
726:                    } catch (Exception e) {
727:                        e.printStackTrace();
728:                    }
729:                }
730:            }
731:
732:            /**
733:             * Inserts a new user record into the database.
734:             */
735:            private void insertIntoDb() throws UserAlreadyExistsException {
736:                Connection con = null;
737:                PreparedStatement pstmt = null;
738:                try {
739:                    con = DbConnectionManager.getConnection();
740:                    pstmt = con.prepareStatement(INSERT_USER);
741:                    pstmt.setInt(1, id);
742:                    pstmt.setString(2, username);
743:                    pstmt.setString(3, passwordHash);
744:                    pstmt.setString(4, email);
745:                    pstmt.executeUpdate();
746:                } catch (SQLException sqle) {
747:                    System.err
748:                            .println("Error in DbUser:insertIntoDb()-" + sqle);
749:                    sqle.printStackTrace();
750:                    throw new UserAlreadyExistsException();
751:                } finally {
752:                    try {
753:                        pstmt.close();
754:                    } catch (Exception e) {
755:                        e.printStackTrace();
756:                    }
757:                    try {
758:                        con.close();
759:                    } catch (Exception e) {
760:                        e.printStackTrace();
761:                    }
762:                }
763:            }
764:
765:            private void insertAutoGroupMembership() {
766:                Connection con = null;
767:                PreparedStatement pstmt = null;
768:                try {
769:                    con = DbConnectionManager.getConnection();
770:                    pstmt = con.prepareStatement(INSERT_AUTO_GROUP);
771:                    pstmt.setInt(1, id);
772:                    pstmt.executeUpdate();
773:                } catch (SQLException sqle) {
774:                    System.err
775:                            .println("Error in DbUser:insertAutoGroupMembership()-"
776:                                    + sqle);
777:                    sqle.printStackTrace();
778:                } finally {
779:                    try {
780:                        pstmt.close();
781:                    } catch (Exception e) {
782:                        e.printStackTrace();
783:                    }
784:                    try {
785:                        con.close();
786:                    } catch (Exception e) {
787:                        e.printStackTrace();
788:                    }
789:                }
790:
791:            }
792:
793:            /**
794:             * Save the user data to the database.
795:             */
796:            private void saveToDb() {
797:                if (id == -1 || id == 0) {
798:                    //"anonymous" or "all users", do nothing
799:                    return;
800:                }
801:                Connection con = null;
802:                PreparedStatement pstmt = null;
803:                try {
804:                    con = DbConnectionManager.getConnection();
805:                    pstmt = con.prepareStatement(SAVE_USER);
806:                    pstmt.setString(1, passwordHash);
807:                    pstmt.setString(2, email);
808:                    pstmt.setString(3, name);
809:                    pstmt.setInt(4, id);
810:                    pstmt.executeUpdate();
811:                } catch (SQLException sqle) {
812:                    System.err
813:                            .println("SQLException in DbUser.java:saveToDb(): "
814:                                    + sqle);
815:                    sqle.printStackTrace();
816:                } finally {
817:                    try {
818:                        pstmt.close();
819:                    } catch (Exception e) {
820:                        e.printStackTrace();
821:                    }
822:                    try {
823:                        con.close();
824:                    } catch (Exception e) {
825:                        e.printStackTrace();
826:                    }
827:                }
828:            }
829:        }
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