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 * arussel 018 */ 019package org.nuxeo.ecm.platform.task.core.listener; 020 021import java.util.List; 022 023import org.nuxeo.ecm.core.api.CoreSession; 024import org.nuxeo.ecm.core.api.DocumentModel; 025import org.nuxeo.ecm.core.api.NuxeoPrincipal; 026import org.nuxeo.ecm.core.api.event.DocumentEventTypes; 027import org.nuxeo.ecm.core.event.Event; 028import org.nuxeo.ecm.core.event.EventListener; 029import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 030import org.nuxeo.ecm.platform.task.Task; 031import org.nuxeo.ecm.platform.task.TaskService; 032import org.nuxeo.runtime.api.Framework; 033 034/** 035 * Listener that deletes deletes related tasks of the document. 036 * 037 * @author arussel 038 * @since 5.5 039 */ 040public class DeleteTaskForDeletedDocumentListener implements EventListener { 041 042 private TaskService taskService; 043 044 public TaskService getTaskService() { 045 if (taskService == null) { 046 taskService = Framework.getService(TaskService.class); 047 } 048 return taskService; 049 } 050 051 @Override 052 public void handleEvent(Event event) { 053 if (DocumentEventTypes.ABOUT_TO_REMOVE.equals(event.getName())) { 054 DocumentEventContext context = (DocumentEventContext) event.getContext(); 055 DocumentModel dm = context.getSourceDocument(); 056 CoreSession coreSession = context.getCoreSession(); 057 List<Task> tasks = getTaskService().getTaskInstances(dm, (NuxeoPrincipal) null, coreSession); 058 if (!tasks.isEmpty()) { 059 for (Task task : tasks) { 060 getTaskService().deleteTask(coreSession, task.getId()); 061 } 062 } 063 } 064 } 065 066}