Source Code Cross Referenced for UserDOImpl.java in  » J2EE » Enhydra-Demos » golfShop » data » user » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » Enhydra Demos » golfShop.data.user 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Enhydra Java Application Server 
003:         * The Initial Developer of the Original Code is Lutris Technologies Inc. 
004:         * Portions created by Lutris are Copyright (C) 1997-2000 Lutris Technologies
005:         * Inc. 
006:         * All Rights Reserved. 
007:         *
008:         * The contents of this file are subject to the Enhydra Public License Version
009:         * 1.0 (the "License"); you may not use this file except in compliance with the
010:         * License. You may obtain a copy of the License at
011:         * http://www.enhydra.org/software/license/epl.html 
012:         *
013:         * Software distributed under the License is distributed on an "AS IS" basis,
014:         * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
015:         * License for the specific language governing rights and limitations under the
016:         * License. 
017:         *
018:         * 
019:         */
020:
021:        package golfShop.data.user;
022:
023:        import java.io.Serializable;
024:        import com.lutris.util.ConfigException;
025:        import com.lutris.appserver.server.*;
026:        import golfShop.data.user.*;
027:        import golfShop.spec.user.UserDO;
028:        import com.lutris.appserver.server.user.*;
029:        import golfShop.spec.LoginException;
030:
031:        /**
032:         *  The application specific user data object. This is the base object that
033:         * does most of the work. All the policy decisions happen here. 
034:         *  The abstract functions are for accessing the store of all users. 
035:         * There will be at least 3 sub-classes that implement these functions, 
036:         * one that just keeps the list in memory, one that reads and writes to a 
037:         * text file, and one that acesses an ldap database. These abstract functions
038:         * are private, so that all 3 flavors appear the same to the outside world.
039:         *  This is a data object, not a business object. This object hides the
040:         * storage medium (memory, file, ldap etc..). The class methods get users
041:         * from the storage medium, and create new users. The object methods give
042:         * you access to the user data, and update changes to the storage medium.
043:         * Passwords are protected, but other than that no policy is enforeced.
044:         * For example, cheching password length, making sure the correct password
045:         * was enntered etc.. is the responsiblity of the user buisness object.
046:         * 
047:         * @author Andrew John
048:         * @version $Revision: 1.1 $
049:         */
050:        public class UserDOImpl implements  UserDO, User, Serializable {
051:
052:            public static final int AUTH_OK = 0;
053:            public static final int AUTH_FAILED = 1;
054:
055:            protected boolean isDirty = false;
056:            protected String username = null;
057:            private String password = null;
058:            protected String address1 = null;
059:            protected String address2 = null;
060:            protected String city = null;
061:            protected String state = null;
062:            protected String zip = null;
063:            protected String creditCard = null;
064:            protected String email = null;
065:
066:            private static UserStore storage = null;
067:
068:            /**
069:             *    Create the correct user store. 
070:             */
071:            public static void InitializeStorageOption(String opt, String fn)
072:                    throws ApplicationException {
073:
074:                try {
075:                    Class c = null;
076:                    if (opt.equalsIgnoreCase("memory")) {
077:                        c = Class.forName("golfShop.data.user.MemoryUserStore");
078:                        storage = (UserStore) c.newInstance();
079:                        storage.initializeUserStore();
080:                    } else if (opt.equalsIgnoreCase("file")) {
081:                        c = Class.forName("golfShop.data.user.FileUserStore");
082:                        storage = (UserStore) c.newInstance();
083:                        storage.initializeUserStore(fn);
084:                    } else if (opt.equalsIgnoreCase("ldap")) {
085:                        c = Class.forName("golfShop.data.user.LdapUserStore");
086:                    } else
087:                        throw new ApplicationException(
088:                                "Invalid user store option " + opt);
089:
090:                } catch (ClassNotFoundException cnfe) {
091:                    throw new ApplicationException(
092:                            "Unable to create user store" + " of type: " + opt
093:                                    + "\n" + cnfe);
094:                } catch (IllegalAccessException iae) {
095:                    throw new ApplicationException(
096:                            "Unable to create user store" + " of type: " + opt
097:                                    + "\n" + iae);
098:                } catch (InstantiationException ie) {
099:                    throw new ApplicationException(
100:                            "Unable to create user store" + " of type: " + opt
101:                                    + "\n" + ie);
102:                }
103:
104:            }
105:
106:            /**
107:             * Constructor. This is protected so that the outside world cannot
108:             * create users. To obtain an already existing user, call the class
109:             * method lookupUser(). To create a new user, call the class method
110:             * createUser().
111:             * 
112:             * @param username A unique String representing the user's identity.
113:             * @param password A String containing the user's password.
114:             * @param userid An int containing the user's unique id number.
115:             */
116:            protected UserDOImpl(String username, String password,
117:                    String address1, String address2, String city,
118:                    String state, String zip, String creditCard, String email) {
119:                this .username = username;
120:                this .password = password;
121:                this .address1 = address1;
122:                this .address2 = address2;
123:                this .city = city;
124:                this .state = state;
125:                this .zip = zip;
126:                this .creditCard = creditCard;
127:                this .email = email;
128:                this .isDirty = false;
129:            }
130:
131:            public static UserDO lookupUser(String username) {
132:                return storage.lookupUserFromUserStore(username);
133:            }
134:
135:            /**
136:             *   This is the public interface for creating user data objects.
137:             */
138:            public static UserDO createUser(String username, String password,
139:                    String address1, String address2, String city,
140:                    String state, String zip, String creditCard, String email) {
141:                // Make sure they don't already exist.
142:                if (storage.usernameInUserStore(username))
143:                    return null;
144:
145:                // Create them.
146:                UserDOImpl newGuy = new UserDOImpl(username, password,
147:                        address1, address2, city, state, zip, creditCard, email);
148:                // Add the new user to the collection of all users.
149:                storage.addUserToUserStore(newGuy);
150:
151:                // Return the new user.
152:                return newGuy;
153:            }
154:
155:            /**
156:             *   This is needed to fulfill the requirements of being a User object.
157:             *   It is not used in this demo.
158:             *   Changes a user's password.
159:             *   The old password must be supplied and it must match the
160:             *   password stored in the user database. 
161:             *   This only changes the copy in memory, call commitChanges() to
162:             *   write the new password out to the storage medium.
163:             */
164:            public void changePassword(String old, String new1, String new2,
165:                    User initiatingUser) throws LoginException {
166:                if ((new1 != new2) || (authenticate(old) != AUTH_OK))
167:                    throw new LoginException(AUTH_FAILED);
168:                password = new1;
169:                isDirty = true;
170:            }
171:
172:            /**
173:             */
174:            public String getName() {
175:                return username;
176:            }
177:
178:            /**
179:             * Process an authentication request.  Verify
180:             * that the user's account and password are valid.
181:             *
182:             * @param password The password entered by the user.
183:             * @return True if the password matches, false otherwise.
184:             */
185:            public int authenticate(String password) {
186:                if (this .password.equals(password))
187:                    return AUTH_OK;
188:                else
189:                    return AUTH_FAILED;
190:            }
191:
192:            protected String getPassword() {
193:                return this .password;
194:            }
195:
196:            /**
197:             * Write any changes to the storage medium. If no changes have been
198:             * made, no action will be taken.
199:             */
200:            public void commitChanges() {
201:                if (!isDirty)
202:                    return;
203:                storage.updateUserInUserStore(this );
204:                isDirty = false;
205:            }
206:
207:            public String getAddress1() {
208:                return address1;
209:            }
210:
211:            public void setAddress1(String address1) {
212:                if (address1.compareTo(this .address1) != 0) {
213:                    this .address1 = address1;
214:                    isDirty = true;
215:                }
216:            }
217:
218:            public String getAddress2() {
219:                return address2;
220:            }
221:
222:            public void setAddress2(String address2) {
223:                if (address2.compareTo(this .address2) != 0) {
224:                    this .address2 = address2;
225:                    isDirty = true;
226:                }
227:            }
228:
229:            public String getCity() {
230:                return city;
231:            }
232:
233:            public void setCity(String city) {
234:                if (city.compareTo(this .city) != 0) {
235:                    this .city = city;
236:                    isDirty = true;
237:                }
238:            }
239:
240:            public String getState() {
241:                return state;
242:            }
243:
244:            public void setState(String state) {
245:                if (state.compareTo(this .state) != 0) {
246:                    this .state = state;
247:                    isDirty = true;
248:                }
249:            }
250:
251:            public String getZip() {
252:                return zip;
253:            }
254:
255:            public void setZip(String zip) {
256:                if (zip.compareTo(this .zip) != 0) {
257:                    this .zip = zip;
258:                    isDirty = true;
259:                }
260:            }
261:
262:            public String getCreditCard() {
263:                return creditCard;
264:            }
265:
266:            public void setCreditCard(String creditCard) {
267:                if (creditCard.compareTo(this .creditCard) != 0) {
268:                    this .creditCard = creditCard;
269:                    isDirty = true;
270:                }
271:            }
272:
273:            public String getEmail() {
274:                return email;
275:            }
276:
277:            public void setEmail(String email) {
278:                if (email.compareTo(this .email) != 0) {
279:                    this .email = email;
280:                    isDirty = true;
281:                }
282:            }
283:
284:            /**
285:             * Compare this object to another user object.  They are
286:             * equal if the user name is the same.
287:             */
288:            public boolean equals(Object obj) {
289:                return (obj instanceof  UserDO)
290:                        && (((UserDO) obj).getName().equals(getName()));
291:            }
292:
293:            /**
294:             * Convert to string for debugging.
295:             */
296:            public String toString() {
297:                return "isDirty = \"" + isDirty + "\", " + "username = \""
298:                        + username + "\", " + "password = \"" + password
299:                        + "\", " + "address1 = \"" + address1 + "\", "
300:                        + "address2 = \"" + address2 + "\", " + "city = \""
301:                        + city + "\", " + "state = \"" + state + "\", "
302:                        + "zip = \"" + zip + "\", " + "creditCard = \""
303:                        + creditCard + "\", " + "email = \"" + email + "\", ";
304:            }
305:        }
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