|
1
25 package enterprise.jsf_jpa_war;
26
27 import java.util.Date  ;
28 import java.util.logging.Level ;
29 import java.util.logging.Logger ;
30 import javax.annotation.Resource;
31 import javax.faces.application.FacesMessage;
32 import javax.faces.context.ExternalContext;
33 import javax.faces.context.FacesContext;
34 import javax.persistence.EntityManager;
35 import javax.persistence.NoResultException;
36 import javax.persistence.PersistenceContext;
37 import javax.servlet.http.HttpSession ;
38 import javax.transaction.UserTransaction ;
39
40
45 public class UserManager {
46
47
51 public static final String USER_SESSION_KEY = "user";
52
53
56 @PersistenceContext
57 private EntityManager em;
58
59
62 @Resource
63 private UserTransaction utx;
64
65
68 private String username;
69 private String password;
70 private String passwordv;
71 private String fname;
72 private String lname;
73
74
76 public String getUsername() {
77 return username;
78 }
79
80 public void setUsername(String username) {
81 this.username = username;
82 }
83
84 public String getPassword() {
85 return password;
86 }
87
88 public void setPassword(String password) {
89 this.password = password;
90 }
91
92 public String getPasswordv() {
93 return passwordv;
94 }
95
96 public void setPasswordv(String passwordv) {
97 this.passwordv = passwordv;
98 }
99
100 public String getFname() {
101 return fname;
102 }
103
104 public void setFname(String fname) {
105 this.fname = fname;
106 }
107
108 public String getLname() {
109 return lname;
110 }
111
112 public void setLname(String lname) {
113 this.lname = lname;
114 }
115
116
117
119
120
130 public String validateUser() {
131 FacesContext context = FacesContext.getCurrentInstance();
132 Wuser user = getUser();
133 if (user != null) {
134 if (!user.getPassword().equals(password)) {
135 FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
136 "Login Failed!",
137 "The password specified is not correct.");
138 context.addMessage(null, message);
139 return null;
140 }
141
142 context.getExternalContext().getSessionMap().put(USER_SESSION_KEY, user);
143 return "app-main";
144 } else {
145 FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
146 "Login Failed!",
147 "Username '"
148 + username
149 +
150 "' does not exist.");
151 context.addMessage(null, message);
152 return null;
153 }
154 }
155
156
165 public String createUser() {
166 FacesContext context = FacesContext.getCurrentInstance();
167 Wuser wuser = getUser();
168 if (wuser == null) {
169 if (!password.equals(passwordv)) {
170 FacesMessage message = new FacesMessage("The specified passwords do not match. Please try again");
171 context.addMessage(null, message);
172 return null;
173 }
174 wuser = new Wuser();
175 wuser.setFirstname(fname);
176 wuser.setLastname(lname);
177 wuser.setPassword(password);
178 wuser.setUsername(username);
179 wuser.setSince(new Date ());
180 try {
181 utx.begin();
182 em.persist(wuser);
183 utx.commit();
184 return "login";
185 } catch (Exception e) {
186 FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
187 "Error creating user!",
188 "Unexpected error when creating your account. Please contact the system Administrator");
189 context.addMessage(null, message);
190 Logger.getAnonymousLogger().log(Level.SEVERE,
191 "Unable to create new user",
192 e);
193 return null;
194 }
195 } else {
196 FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
197 "Username '"
198 + username
199 + "' already exists! ",
200 "Please choose a different username.");
201 context.addMessage(null, message);
202 return null;
203 }
204 }
205
206
207
213 public String logout() {
214 HttpSession session = (HttpSession )
215 FacesContext.getCurrentInstance().getExternalContext().getSession(false);
216 if (session != null) {
217 session.invalidate();
218 }
219 return "login";
220
221 }
222
223
225
226
234 private Wuser getUser() {
235 try {
236 Wuser user = (Wuser)
237 em.createNamedQuery("Wuser.findByUsername").
238 setParameter("username", username).getSingleResult();
239 return user;
240 } catch (NoResultException nre) {
241 return null;
242 }
243 }
244
245 }
246 |
Popular Tags |
Java API By Example, From Geeks To Geeks.