2 * Copyright 2005-2010 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.wamblee.usermgt;
18 import java.util.EnumMap;
21 * User management exception.
23 * @author Erik Brakkee
25 public class UserMgtException extends Exception {
26 static final long serialVersionUID = 5585349754997507529L;
29 * Mapping of enum to exception message text.
31 private static final EnumMap<Reason, String> MESSAGES = new EnumMap<Reason, String>(
35 MESSAGES.put(Reason.UNKNOWN_USER, "Unknown user");
36 MESSAGES.put(Reason.UNKNOWN_GROUP, "Unknown group");
37 MESSAGES.put(Reason.DUPLICATE_USER, "Duplicate user");
38 MESSAGES.put(Reason.DUPLICATE_GROUP, "Duplicate group");
39 MESSAGES.put(Reason.USER_ALREADY_IN_GROUP, "User already in group");
40 MESSAGES.put(Reason.USER_NOT_IN_GROUP, "User not in group");
41 MESSAGES.put(Reason.TRIVIAL_RENAME, "Trivial rename");
42 MESSAGES.put(Reason.INVALID_PASSWORD, "Invalid password");
43 MESSAGES.put(Reason.GROUP_STILL_OCCUPIED, "Group still occupied");
44 MESSAGES.put(Reason.USER_MUST_BE_IN_A_GROUP,
45 "User must be in at least one group");
46 MESSAGES.put(Reason.INVALID_USERNAME, "Invalid user name");
47 MESSAGES.put(Reason.INVALID_GROUPNAME, "Invalid group name");
51 * Cause of the exception.
56 * User or null if no user is relevant for the problem.
61 * Group or null if no group is relevant for the problem.
66 * Creates a new UserMgtException object.
69 public UserMgtException(Reason aCause, String aMessage) {
70 super(MESSAGES.get(aCause) + ": " + aMessage);
75 * Creates a new UserMgtException object.
78 public UserMgtException(Reason aCause, User aUser) {
79 this(aCause, "for user '" + aUser.getName() + "'");
84 * Creates a new UserMgtException object.
87 public UserMgtException(Reason aCause, Group aGroup) {
88 this(aCause, "for group '" + aGroup.getName() + "'");
93 * Creates a new UserMgtException object.
96 public UserMgtException(Reason aCause, User aUser, Group aGroup) {
97 this(aCause, "for user '" + aUser.getName() + "' and group '" +
98 aGroup.getName() + "'");
104 * Gets the cause of the problem.
108 public Reason getReason() {
113 * Gets the user for which the problem occurred.
115 * @return User or null if not applicable.
117 public User getUser() {
122 * Gets the group for which the problem occured.
124 * @return Group or null if not applicable.
126 public Group getGroup() {
131 * Possible causes for the exception.
135 UNKNOWN_USER, UNKNOWN_GROUP, DUPLICATE_USER, DUPLICATE_GROUP, USER_ALREADY_IN_GROUP, USER_NOT_IN_GROUP, TRIVIAL_RENAME, INVALID_PASSWORD, GROUP_STILL_OCCUPIED, USER_MUST_BE_IN_A_GROUP, INVALID_USERNAME, INVALID_GROUPNAME;