001/* 002 * (C) Copyright 2006-2015 Nuxeo SA (http://nuxeo.com/) and others. 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 * 016 * Contributors: 017 * dmetzler 018 */ 019package org.nuxeo.ecm.platform.ec.notification; 020 021import java.io.Serializable; 022import java.util.ArrayList; 023import java.util.Arrays; 024import java.util.Collections; 025import java.util.HashMap; 026import java.util.HashSet; 027import java.util.List; 028import java.util.Map; 029import java.util.Map.Entry; 030import java.util.Set; 031 032import org.nuxeo.ecm.core.api.CoreSession; 033import org.nuxeo.ecm.core.api.DocumentModel; 034import org.nuxeo.ecm.platform.notification.api.Notification; 035import org.nuxeo.ecm.platform.notification.api.NotificationManager; 036import org.nuxeo.runtime.api.Framework; 037 038/** 039 * Encapsulates all notification storage logic in the Notifiable facet. 040 * 041 * @since 7.3 042 */ 043public class SubscriptionAdapter { 044 045 public static final String NOTIFIABLE_FACET = "Notifiable"; 046 047 private static final String NOTIF_PROPERTY = "notif:notifications"; 048 049 private static final String NOTIF_SUBSCRIBERSKEY = "subscribers"; 050 051 private static final String NOTIF_NAMEKEY = "name"; 052 053 private DocumentModel doc; 054 055 public SubscriptionAdapter(DocumentModel doc) { 056 this.doc = doc; 057 } 058 059 /** 060 * Take the document storage propery and put it in a map. 061 * <dl> 062 * <dt>key</dt> 063 * <dd>notificationName</dd> 064 * <dt>value</dt> 065 * <dd>list of subscribers</dd> 066 * </dl> 067 * After having modified the map, update the doc with {@link #setNotificationMap(Map)} 068 * 069 * @return 070 */ 071 private Map<String, Set<String>> getNotificationMap() { 072 073 if (!doc.hasFacet(SubscriptionAdapter.NOTIFIABLE_FACET)) { 074 return new HashMap<>(); 075 } 076 077 Map<String, Set<String>> result = new HashMap<String, Set<String>>(); 078 079 @SuppressWarnings("unchecked") 080 List<Map<String, Serializable>> props = (List<Map<String, Serializable>>) doc.getPropertyValue(NOTIF_PROPERTY); 081 for (Map<String, Serializable> prop : props) { 082 String notificationName = (String) prop.get(NOTIF_NAMEKEY); 083 String[] subscribers = (String[]) prop.get(NOTIF_SUBSCRIBERSKEY); 084 085 if (subscribers != null && subscribers.length > 0) { 086 if (!result.containsKey(notificationName)) { 087 Set<String> subscribersSet = new HashSet<String>(); 088 result.put(notificationName, subscribersSet); 089 } 090 result.get(notificationName).addAll(Arrays.asList(subscribers)); 091 } 092 } 093 return result; 094 095 } 096 097 /** 098 * Take a map and store it in the document's notification property. To get the original map, use 099 * {@link #getNotificationMap()} 100 */ 101 private void setNotificationMap(Map<String, Set<String>> map) { 102 List<Map<String, Serializable>> props = new ArrayList<Map<String, Serializable>>(); 103 for (Entry<String, Set<String>> entry : map.entrySet()) { 104 Map<String, Serializable> propMap = new HashMap<>(); 105 propMap.put(NOTIF_NAMEKEY, entry.getKey()); 106 propMap.put(NOTIF_SUBSCRIBERSKEY, new ArrayList<String>(entry.getValue())); 107 props.add(propMap); 108 } 109 110 if (!props.isEmpty()) { 111 if (!doc.hasFacet(SubscriptionAdapter.NOTIFIABLE_FACET)) { 112 doc.addFacet(SubscriptionAdapter.NOTIFIABLE_FACET); 113 } 114 115 doc.setPropertyValue(NOTIF_PROPERTY, (Serializable) props); 116 } 117 } 118 119 /** 120 * Return the list of subscribers name for a given notification. 121 * 122 * @param notification 123 * @return 124 */ 125 public List<String> getNotificationSubscribers(String notification) { 126 Set<String> subscribers = getNotificationMap().get(notification); 127 return subscribers != null ? new ArrayList<>(subscribers) : Collections.emptyList(); 128 } 129 130 /** 131 * Return the list of of subscriptions for a given user 132 * 133 * @return 134 */ 135 public List<String> getUserSubscriptions(String username) { 136 List<String> result = new ArrayList<String>(); 137 for (Entry<String, Set<String>> entry : getNotificationMap().entrySet()) { 138 if (entry.getValue().contains(username)) { 139 result.add(entry.getKey()); 140 } 141 } 142 return result; 143 } 144 145 /** 146 * Add a subscription to a notification for a given user. 147 * 148 * @param username 149 * @param notification 150 */ 151 public void addSubscription(String username, String notification) { 152 Map<String, Set<String>> notificationMap = getNotificationMap(); 153 if (!notificationMap.containsKey(notification)) { 154 notificationMap.put(notification, new HashSet<>()); 155 } 156 notificationMap.get(notification).add(username); 157 setNotificationMap(notificationMap); 158 } 159 160 /** 161 * Add a subscription to all notification for a given user 162 * 163 * @param username 164 */ 165 public void addSubscriptionsToAll(String username) { 166 167 Set<String> notificationNames = new HashSet<String>(); 168 169 NotificationManager ns = Framework.getLocalService(NotificationManager.class); 170 171 for (Notification notif : ns.getNotificationsForSubscriptions(doc.getType())) { 172 notificationNames.add(notif.getName()); 173 } 174 175 CoreSession session = doc.getCoreSession(); 176 177 if (session != null) { 178 for (DocumentModel parent : session.getParentDocuments(doc.getRef())) { 179 for (Notification notif : ns.getNotificationsForSubscriptions(parent.getType())) { 180 notificationNames.add(notif.getName()); 181 } 182 } 183 } 184 185 // add subscriptions to every relevant notification 186 for (String name : notificationNames) { 187 addSubscription(username, name); 188 } 189 190 } 191 192 /** 193 * Remove a subscription to a notification for a given user. 194 * 195 * @param username 196 * @param notification 197 */ 198 public void removeUserNotificationSubscription(String username, String notification) { 199 Map<String, Set<String>> map = getNotificationMap(); 200 if (map.containsKey(notification)) { 201 map.get(notification).remove(username); 202 } 203 setNotificationMap(map); 204 } 205 206 /** 207 * Copy the subscriptions of the current doc to the targetted document. 208 * 209 * @param targetDoc 210 */ 211 public void copySubscriptionsTo(DocumentModel targetDoc) { 212 if(!targetDoc.hasFacet(NOTIFIABLE_FACET)) { 213 targetDoc.addFacet(NOTIFIABLE_FACET); 214 } 215 targetDoc.setPropertyValue(NOTIF_PROPERTY, doc.getPropertyValue(NOTIF_PROPERTY)); 216 } 217 218}