001/* 002 * (C) Copyright 2009 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 * Nuxeo - initial API and implementation 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.ecm.platform.ec.notification; 023 024import java.util.List; 025 026import org.apache.commons.logging.Log; 027import org.apache.commons.logging.LogFactory; 028import org.nuxeo.ecm.core.api.DocumentModel; 029import org.nuxeo.ecm.core.api.IdRef; 030import org.nuxeo.ecm.core.api.event.CoreEventConstants; 031import org.nuxeo.ecm.core.event.Event; 032import org.nuxeo.ecm.core.event.EventContext; 033import org.nuxeo.ecm.core.event.EventListener; 034import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 035import org.nuxeo.ecm.platform.ec.notification.service.NotificationService; 036import org.nuxeo.ecm.platform.ec.notification.service.NotificationServiceHelper; 037 038/** 039 * Propagate previously set notifications when a proxy is replaced by a new version. 040 * 041 * @author ogrisel 042 */ 043public class ProxySubscriptionPropagationListener implements EventListener { 044 045 private static final Log log = LogFactory.getLog(ProxySubscriptionPropagationListener.class); 046 047 @Override 048 @SuppressWarnings("unchecked") 049 public void handleEvent(Event event) { 050 051 EventContext ctx = event.getContext(); 052 053 if (!(ctx instanceof DocumentEventContext)) { 054 // we are only interested in propagating notification for document 055 // proxies 056 return; 057 } 058 DocumentEventContext docCtx = (DocumentEventContext) ctx; 059 DocumentModel publishedDoc = docCtx.getSourceDocument(); 060 if (!publishedDoc.isProxy()) { 061 // we are only interested in the publication of proxy documents 062 return; 063 } 064 065 NotificationService service = NotificationServiceHelper.getNotificationService(); 066 if (service == null) { 067 log.error("Unable to get NotificationService, exiting"); 068 return; 069 } 070 071 List<String> replacedProxyIds = (List<String>) ctx.getProperties().get(CoreEventConstants.REPLACED_PROXY_IDS); 072 if (replacedProxyIds == null) { 073 return; 074 } 075 076 for (String replacedProxyId : replacedProxyIds) { 077 // there should be only one replaced proxy, but just in case, 078 // iterate over them 079 DocumentModel fromDoc = ctx.getCoreSession().getDocument(new IdRef(replacedProxyId)); 080 fromDoc.getAdapter(SubscriptionAdapter.class).copySubscriptionsTo(publishedDoc); 081 } 082 ctx.getCoreSession().saveDocument(publishedDoc); 083 } 084 085 086}