001/*
002 *  Copyright 2021 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.plugins.workspaces.members.observers;
017
018import java.util.ArrayList;
019import java.util.Collections;
020import java.util.List;
021import java.util.Map;
022import java.util.Set;
023import java.util.stream.Collectors;
024
025import org.apache.avalon.framework.service.ServiceException;
026import org.apache.avalon.framework.service.ServiceManager;
027import org.apache.avalon.framework.service.Serviceable;
028
029import org.ametys.cms.repository.Content;
030import org.ametys.core.group.Group;
031import org.ametys.core.group.GroupIdentity;
032import org.ametys.core.group.GroupManager;
033import org.ametys.core.observation.AsyncObserver;
034import org.ametys.core.observation.Event;
035import org.ametys.core.user.UserIdentity;
036import org.ametys.plugins.userdirectory.UserDirectoryHelper;
037import org.ametys.plugins.workspaces.ObservationConstants;
038import org.ametys.plugins.workspaces.members.JCRProjectMember.MemberType;
039import org.ametys.plugins.workspaces.project.ProjectManager;
040import org.ametys.runtime.plugin.component.AbstractLogEnabled;
041import org.ametys.web.repository.site.Site;
042import org.ametys.web.repository.site.SiteManager;
043import org.ametys.web.repository.sitemap.Sitemap;
044
045/**
046 * Abstract observer for member update
047 *
048 */
049public abstract class AbstractMemberObserver extends AbstractLogEnabled implements AsyncObserver, Serviceable
050{
051    /** The service manager */
052    protected ServiceManager _smanager;
053    /** The group manager */
054    protected GroupManager _groupManager;
055    /** The user directory helper */
056    protected UserDirectoryHelper _userDirectoryHelper;
057    /** The site manager */
058    protected SiteManager _siteManager;
059    /** The project manager */
060    protected ProjectManager _projectManager;
061    
062    public void service(ServiceManager smanager) throws ServiceException
063    {
064        _smanager = smanager;
065        _userDirectoryHelper = (UserDirectoryHelper) smanager.lookup(UserDirectoryHelper.ROLE);
066        _siteManager = (SiteManager) smanager.lookup(SiteManager.ROLE);
067        _projectManager = (ProjectManager) smanager.lookup(ProjectManager.ROLE);
068    }
069
070    public boolean supports(Event event)
071    {
072        String eventId = event.getId();
073        return eventId.equals(ObservationConstants.EVENT_MEMBER_ADDED) || eventId.equals(ObservationConstants.EVENT_MEMBER_DELETED);
074    }
075
076    public int getPriority()
077    {
078        return MIN_PRIORITY;
079    }
080
081    public void observe(Event event, Map<String, Object> transientVars) throws Exception
082    {
083        Set<UserIdentity> users = getUsers(event);
084        _internalObserve(event, users);
085    }
086
087    /**
088     * Get the impacted users from a member event.
089     * @param event the event.
090     * @return the impacted users.
091     * @throws Exception if an error occurs.
092     */
093    public Set<UserIdentity> getUsers(Event event) throws Exception
094    {
095        // Lazy Loading
096        if (_groupManager == null)
097        {
098            _groupManager = (GroupManager) _smanager.lookup(GroupManager.ROLE);
099        }
100        
101        Map<String, Object> args = event.getArguments();
102
103        MemberType type = (MemberType) args.get(ObservationConstants.ARGS_MEMBER_IDENTITY_TYPE);
104        String identity = (String) args.get(ObservationConstants.ARGS_MEMBER_IDENTITY);
105        
106        if (MemberType.USER == type)
107        {
108            UserIdentity user = UserIdentity.stringToUserIdentity(identity);
109            return Collections.singleton(user);
110        }
111
112        Group group = _groupManager.getGroup(GroupIdentity.stringToGroupIdentity(identity));
113        return group.getUsers();
114    }
115    
116    /**
117     * Observes the event with access to the user contents
118     * @param event the event.
119     * @param users the user contents
120     * @throws Exception if an error occurs.
121     */
122    protected abstract void _internalObserve(Event event, Set<UserIdentity> users) throws Exception;
123    
124    /**
125     * Get the user contents associated to user identities
126     * @param users the users
127     * @return the user contents
128     */
129    protected List<Content> getUserContents(Set<UserIdentity> users)
130    {
131        String catalogSiteName = _projectManager.getCatalogSiteName();
132        
133        List<Content> contents = new ArrayList<>();
134        
135        Site site = _siteManager.getSite(catalogSiteName);
136        if (site != null)
137        {
138            Set<String> languages = site.getSitemaps().stream()
139                .map(Sitemap::getName)
140                .collect(Collectors.toSet());
141            
142            for (UserIdentity user : users)
143            {
144                for (String lang : languages)
145                {
146                    Content userContent = _userDirectoryHelper.getUserContent(user, lang);
147                    if (userContent != null)
148                    {
149                        contents.add(userContent);
150                    }
151                }
152            }
153        }
154        
155        return contents;
156    }
157}