001/* 002 * (C) Copyright 2011 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 */ 019package org.nuxeo.ecm.platform.routing.core.listener; 020 021import org.nuxeo.ecm.core.api.DocumentModel; 022import org.nuxeo.ecm.core.event.Event; 023import org.nuxeo.ecm.core.event.EventListener; 024import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 025import org.nuxeo.ecm.platform.comment.api.CommentEvents; 026import org.nuxeo.ecm.platform.routing.api.DocumentRouteStep; 027import org.nuxeo.ecm.platform.routing.api.DocumentRoutingConstants; 028 029/*** 030 * Updates the number of comments stored on the {@link DocumentRouteStep}. This is used to avoid unnecessary jena calls 031 * when displaying the number of comments on each step. 032 * 033 * @author mcedica 034 */ 035public class DocumentRoutingUpdateCommentsInfoListener implements EventListener { 036 037 @Override 038 public void handleEvent(Event event) { 039 String eventId = event.getName(); 040 041 if (!eventId.equals(CommentEvents.COMMENT_ADDED) && !eventId.equals(CommentEvents.COMMENT_REMOVED)) { 042 return; 043 } 044 DocumentEventContext docCtx; 045 if (event.getContext() instanceof DocumentEventContext) { 046 docCtx = (DocumentEventContext) event.getContext(); 047 } else { 048 return; 049 } 050 DocumentModel doc = docCtx.getSourceDocument(); 051 if (!doc.hasFacet(DocumentRoutingConstants.COMMENTS_INFO_HOLDER_FACET)) { 052 return; 053 } 054 Long comments = (Long) doc.getPropertyValue(DocumentRoutingConstants.COMMENTS_NO_PROPERTY_NAME); 055 // else increase or decrease the number of comments on the doc 056 if (eventId.equals(CommentEvents.COMMENT_ADDED)) { 057 doc.setPropertyValue(DocumentRoutingConstants.COMMENTS_NO_PROPERTY_NAME, ++comments); 058 } 059 if (eventId.equals(CommentEvents.COMMENT_REMOVED)) { 060 doc.setPropertyValue(DocumentRoutingConstants.COMMENTS_NO_PROPERTY_NAME, --comments); 061 } 062 event.getContext().getCoreSession().saveDocument(doc); 063 } 064}