001/* 002 * (C) Copyright 2009 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 * $Id$ 018 */ 019 020package org.nuxeo.ecm.platform.ec.notification; 021 022import java.util.List; 023 024import org.apache.commons.logging.Log; 025import org.apache.commons.logging.LogFactory; 026import org.nuxeo.ecm.core.api.DocumentModel; 027import org.nuxeo.ecm.core.api.IdRef; 028import org.nuxeo.ecm.core.api.event.CoreEventConstants; 029import org.nuxeo.ecm.core.event.Event; 030import org.nuxeo.ecm.core.event.EventContext; 031import org.nuxeo.ecm.core.event.EventListener; 032import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 033import org.nuxeo.ecm.platform.ec.notification.service.NotificationService; 034import org.nuxeo.ecm.platform.ec.notification.service.NotificationServiceHelper; 035 036/** 037 * Propagate previously set notifications when a proxy is replaced by a new version. 038 * 039 * @author ogrisel 040 */ 041public class ProxySubscriptionPropagationListener implements EventListener { 042 043 private static final Log log = LogFactory.getLog(ProxySubscriptionPropagationListener.class); 044 045 @SuppressWarnings("unchecked") 046 public void handleEvent(Event event) { 047 048 EventContext ctx = event.getContext(); 049 050 if (!(ctx instanceof DocumentEventContext)) { 051 // we are only interested in propagating notification for document 052 // proxies 053 return; 054 } 055 DocumentEventContext docCtx = (DocumentEventContext) ctx; 056 DocumentModel publishedDoc = docCtx.getSourceDocument(); 057 if (!publishedDoc.isProxy()) { 058 // we are only interested in the publication of proxy documents 059 return; 060 } 061 062 NotificationService service = NotificationServiceHelper.getNotificationService(); 063 if (service == null) { 064 log.error("Unable to get NotificationService, exiting"); 065 return; 066 } 067 068 List<String> replacedProxyIds = (List<String>) ctx.getProperties().get(CoreEventConstants.REPLACED_PROXY_IDS); 069 if (replacedProxyIds == null) { 070 return; 071 } 072 073 for (String replacedProxyId : replacedProxyIds) { 074 // there should be only one replaced proxy, but just in case, 075 // iterate over them 076 DocumentModel fromDoc = ctx.getCoreSession().getDocument(new IdRef(replacedProxyId)); 077 fromDoc.getAdapter(SubscriptionAdapter.class).copySubscriptionsTo(publishedDoc); 078 } 079 ctx.getCoreSession().saveDocument(publishedDoc); 080 } 081 082 083}