--- /dev/null
+/*
+ * Copyright 2005-2010 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.wamblee.security.authentication;
+
+import org.wamblee.security.encryption.MessageDigester;
+
+import java.util.Set;
+import java.util.TreeSet;
+
+/**
+ * In-memory user set.
+ *
+ * @author Erik Brakkee
+ */
+public class InMemoryUserSet extends AbstractUserSet {
+ /**
+ * Users. All users in this set have their password validator and encoder
+ * set.
+ */
+ private Set<User> users;
+
+ /**
+ * Constructs an empty user set.
+ */
+ public InMemoryUserSet(NameValidator aPasswordValidator,
+ MessageDigester aPasswordEncoder) {
+ super(aPasswordValidator, aPasswordEncoder);
+ users = new TreeSet<User>();
+ }
+
+ @Override
+ public void userModified(User aUser) {
+ users.remove(aUser);
+ setPasswordInfo(aUser);
+ users.add(aUser);
+ }
+
+ @Override
+ public User find(String aName) {
+ for (User user : users) {
+ if (user.getName().equals(aName)) {
+ return user;
+ }
+ }
+
+ return null;
+ }
+
+ @Override
+ public boolean add(User aUser) {
+ setPasswordInfo(aUser);
+
+ return users.add(aUser);
+ }
+
+ @Override
+ public boolean contains(User aUser) {
+ return users.contains(aUser);
+ }
+
+ @Override
+ public boolean remove(User aUser) {
+ return users.remove(aUser);
+ }
+
+ @Override
+ public Set<User> list() {
+ Set<User> list = new TreeSet<User>();
+ list.addAll(users);
+ return list;
+ }
+
+ @Override
+ public Set<User> list(Group aGroup) {
+ Set<User> result = new TreeSet<User>();
+
+ for (User user : users) {
+ if (user.getGroups().contains(aGroup)) {
+ result.add(user);
+ }
+ }
+
+ return result;
+ }
+
+ @Override
+ public int size() {
+ return users.size();
+ }
+
+ @Override
+ public void clearCache() {
+ // Empty
+ }
+}