001/*
002 * (C) Copyright 2006-2012 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 *     tmartins
018 */
019package org.nuxeo.ecm.platform.ec.notification;
020
021import org.nuxeo.ecm.core.event.Event;
022import org.nuxeo.ecm.core.event.impl.DocumentEventContext;
023
024/**
025 * Veto not to send notification when a version is the source document of the event. Notifications on versions are not
026 * really relevant, there should be another event on the live document that provides a more specific notification For
027 * instance, use documentCheckedIn on the live document, instead of documentCreated on the version
028 *
029 * @since 5.7
030 * @author Thierry Martins <tm@nuxeo.com>
031 */
032public class VersionVeto implements NotificationListenerVeto {
033
034    @Override
035    public boolean accept(Event event) {
036        // this cast is safe because the type checking was done in
037        // NotificationEventListener
038        DocumentEventContext docCtx = (DocumentEventContext) event.getContext();
039        if (docCtx.getSourceDocument().isVersion()) {
040            return false;
041        }
042        return true;
043    }
044
045}