/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.lenya.cms.ac.usecases;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.apache.lenya.ac.Group;
import org.apache.lenya.ac.Groupable;
import org.apache.lenya.ac.User;
import org.apache.lenya.cms.usecase.UsecaseException;
/**
* Usecase to change the members of a group.
*
* @version $Id: GroupMembers.java 407305 2006-05-17 16:21:49Z andreas $
*/
public class GroupMembers extends AccessControlUsecase {
protected static final String GROUP_USERS = "groupUsers";
protected static final String OTHER_USERS = "otherUsers";
protected static final String ADD = "add";
protected static final String REMOVE = "remove";
protected static final String GROUP_USER = "groupUser";
protected static final String OTHER_USER = "otherUser";
/**
* @see org.apache.lenya.cms.usecase.AbstractUsecase#initParameters()
*/
protected void initParameters() {
super.initParameters();
Groupable[] members = getGroup().getMembers();
List groupUsers = new ArrayList();
for (int i = 0; i < members.length; i++) {
if (members[i] instanceof User) {
groupUsers.add(members[i]);
}
}
setParameter(GROUP_USERS, groupUsers);
User[] allUsers = getUserManager().getUsers();
List otherUsers = new ArrayList();
for (int i = 0; i < allUsers.length; i++) {
if (!groupUsers.contains(allUsers[i])) {
otherUsers.add(allUsers[i]);
}
}
setParameter(OTHER_USERS, otherUsers);
setExitParameter(GroupProfile.ID, getParameterAsString(GroupProfile.ID));
}
/**
* @see org.apache.lenya.cms.usecase.AbstractUsecase#doExecute()
*/
protected void doExecute() throws Exception {
super.doExecute();
Set usersToSave = new HashSet();
final Group group = getGroup();
Groupable[] members = group.getMembers();
for (int i = 0; i < members.length; i++) {
if (members[i] instanceof User) {
usersToSave.add(members[i]);
}
}
group.removeAllMembers();
List groupUsers = (List) getParameter(GROUP_USERS);
for (Iterator i = groupUsers.iterator(); i.hasNext();) {
User user = (User) i.next();
group.add(user);
usersToSave.add(user);
}
for (Iterator i = usersToSave.iterator(); i.hasNext(); ) {
((User) i.next()).save();
}
}
/**
* @see org.apache.lenya.cms.usecase.Usecase#advance()
*/
public void advance() throws UsecaseException {
super.advance();
String add = getParameterAsString(ADD);
String remove = getParameterAsString(REMOVE);
if (add != null || remove != null) {
List groupUsers = (List) getParameter(GROUP_USERS);
List otherUsers = (List) getParameter(OTHER_USERS);
if (add != null) {
String userId = getParameterAsString(OTHER_USER);
if (userId != null) {
if (getLogger().isDebugEnabled()) {
getLogger().debug("add user [" + userId + "]");
}
User user = getUserManager().getUser(userId);
groupUsers.add(user);
otherUsers.remove(user);
}
}
if (remove != null) {
String userId = getParameterAsString(GROUP_USER);
if (userId != null) {
if (getLogger().isDebugEnabled()) {
getLogger().debug("remove user [" + userId + "]");
}
User user = getUserManager().getUser(userId);
otherUsers.add(user);
groupUsers.remove(user);
}
}
deleteParameter(ADD);
deleteParameter(REMOVE);
deleteParameter(GROUP_USER);
deleteParameter(OTHER_USER);
}
}
protected Group getGroup() {
String groupId = getParameterAsString(GroupProfile.ID);
Group group = getGroupManager().getGroup(groupId);
if (group == null) {
throw new RuntimeException("Group [" + groupId + "] not found.");
}
return group;
}
}