2 * Copyright 2005 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;
22 * User management exception.
24 * @author Erik Brakkee
26 public class UserMgtException extends Exception {
30 static final long serialVersionUID = 5585349754997507529L;
33 * Mapping of enum to exception message text.
35 private static final EnumMap<Reason, String> MESSAGES = new EnumMap<Reason, String>(Reason.class);
38 MESSAGES.put(Reason.UNKNOWN_USER, "Unknown user");
39 MESSAGES.put(Reason.UNKNOWN_GROUP, "Unknown group");
40 MESSAGES.put(Reason.DUPLICATE_USER, "Duplicate user");
41 MESSAGES.put(Reason.DUPLICATE_GROUP, "Duplicate group");
42 MESSAGES.put(Reason.USER_ALREADY_IN_GROUP, "User already in group");
43 MESSAGES.put(Reason.USER_NOT_IN_GROUP, "User not in group");
44 MESSAGES.put(Reason.TRIVIAL_RENAME, "Trivial rename");
45 MESSAGES.put(Reason.INVALID_PASSWORD, "Invalid password");
46 MESSAGES.put(Reason.GROUP_STILL_OCCUPIED, "Group still occupied");
47 MESSAGES.put(Reason.USER_MUST_BE_IN_A_GROUP,
48 "User must be in at least one group");
49 MESSAGES.put(Reason.INVALID_USERNAME, "Invalid user name");
50 MESSAGES.put(Reason.INVALID_GROUPNAME, "Invalid group name");
54 * Cause of the exception.
59 * User or null if no user is relevant for the problem.
64 * Group or null if no group is relevant for the problem.
69 * Creates a new UserMgtException object.
71 * @param aCause DOCUMENT ME!
72 * @param aMessage DOCUMENT ME!
74 public UserMgtException(Reason aCause, String aMessage) {
75 super(MESSAGES.get(aCause) + ": " + aMessage);
80 * Creates a new UserMgtException object.
82 * @param aCause DOCUMENT ME!
83 * @param aUser DOCUMENT ME!
85 public UserMgtException(Reason aCause, User aUser) {
86 this(aCause, "for user '" + aUser.getName() + "'");
91 * Creates a new UserMgtException object.
93 * @param aCause DOCUMENT ME!
94 * @param aGroup DOCUMENT ME!
96 public UserMgtException(Reason aCause, Group aGroup) {
97 this(aCause, "for group '" + aGroup.getName() + "'");
102 * Creates a new UserMgtException object.
104 * @param aCause DOCUMENT ME!
105 * @param aUser DOCUMENT ME!
106 * @param aGroup DOCUMENT ME!
108 public UserMgtException(Reason aCause, User aUser, Group aGroup) {
110 "for user '" + aUser.getName() + "' and group '" + aGroup.getName()
117 * Gets the cause of the problem.
121 public Reason getReason() {
126 * Gets the user for which the problem occurred.
128 * @return User or null if not applicable.
130 public User getUser() {
135 * Gets the group for which the problem occured.
137 * @return Group or null if not applicable.
139 public Group getGroup() {
144 * Possible causes for the exception.
147 public enum Reason {UNKNOWN_USER,
151 USER_ALREADY_IN_GROUP,
155 GROUP_STILL_OCCUPIED,
156 USER_MUST_BE_IN_A_GROUP,