001/* 002 * (C) Copyright 2009 Nuxeo SA (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 * arussel 016 */ 017package org.nuxeo.ecm.platform.task.core.listener; 018 019import java.util.List; 020 021import org.nuxeo.ecm.core.api.CoreSession; 022import org.nuxeo.ecm.core.api.DocumentModel; 023import org.nuxeo.ecm.core.api.NuxeoPrincipal; 024import org.nuxeo.ecm.core.api.event.DocumentEventTypes; 025import org.nuxeo.ecm.core.event.Event; 026import org.nuxeo.ecm.core.event.EventListener; 027import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 028import org.nuxeo.ecm.platform.task.Task; 029import org.nuxeo.ecm.platform.task.TaskService; 030import org.nuxeo.runtime.api.Framework; 031 032/** 033 * Listener that deletes deletes related tasks of the document. 034 * 035 * @author arussel 036 * @since 5.5 037 */ 038public class DeleteTaskForDeletedDocumentListener implements EventListener { 039 040 private TaskService taskService; 041 042 public TaskService getTaskService() { 043 if (taskService == null) { 044 taskService = Framework.getService(TaskService.class); 045 } 046 return taskService; 047 } 048 049 @Override 050 public void handleEvent(Event event) { 051 if (DocumentEventTypes.ABOUT_TO_REMOVE.equals(event.getName())) { 052 DocumentEventContext context = (DocumentEventContext) event.getContext(); 053 DocumentModel dm = context.getSourceDocument(); 054 CoreSession coreSession = context.getCoreSession(); 055 List<Task> tasks = getTaskService().getTaskInstances(dm, (NuxeoPrincipal) null, coreSession); 056 if (!tasks.isEmpty()) { 057 for (Task task : tasks) { 058 getTaskService().deleteTask(coreSession, task.getId()); 059 } 060 } 061 } 062 } 063 064}