001/* 002 * (C) Copyright 2014 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 * Vladimir Pasquier <vpasquier@nuxeo.com> 018 */ 019 020package org.nuxeo.binary.metadata.internals.listeners; 021 022import static org.nuxeo.ecm.core.api.event.DocumentEventTypes.ABOUT_TO_CREATE; 023import static org.nuxeo.ecm.core.api.event.DocumentEventTypes.BEFORE_DOC_UPDATE; 024 025import org.nuxeo.binary.metadata.api.BinaryMetadataConstants; 026import org.nuxeo.binary.metadata.api.BinaryMetadataService; 027import org.nuxeo.ecm.core.api.DocumentModel; 028import org.nuxeo.ecm.core.event.Event; 029import org.nuxeo.ecm.core.event.EventContext; 030import org.nuxeo.ecm.core.event.EventListener; 031import org.nuxeo.ecm.core.event.impl.DocumentEventContext; 032import org.nuxeo.runtime.api.Framework; 033 034/** 035 * Handle document and blob updates according to following rules in an event context: - Define if rule should be 036 * executed in async or sync mode. - If Blob dirty and document metadata dirty, write metadata from doc to Blob. - If 037 * Blob dirty and document metadata not dirty, write metadata from Blob to doc. - If Blob not dirty and document 038 * metadata dirty, write metadata from doc to Blob. 039 * 040 * @since 7.1 041 */ 042public class BinaryMetadataSyncListener implements EventListener { 043 044 @Override 045 public void handleEvent(Event event) { 046 EventContext ctx = event.getContext(); 047 if (!(ctx instanceof DocumentEventContext)) { 048 return; 049 } 050 BinaryMetadataService binaryMetadataService = Framework.getService(BinaryMetadataService.class); 051 DocumentEventContext docCtx = (DocumentEventContext) ctx; 052 DocumentModel doc = docCtx.getSourceDocument(); 053 Boolean disable = (Boolean) event.getContext().getProperty( 054 BinaryMetadataConstants.DISABLE_BINARY_METADATA_LISTENER); 055 if (ABOUT_TO_CREATE.equals(event.getName()) && !doc.isProxy() && disable == null) { 056 binaryMetadataService.writeMetadata(doc); 057 } else if (BEFORE_DOC_UPDATE.equals(event.getName()) && !doc.isProxy() && disable == null) { 058 doc.putContextData(BinaryMetadataConstants.DISABLE_BINARY_METADATA_LISTENER, Boolean.TRUE); 059 binaryMetadataService.handleSyncUpdate(doc); 060 } 061 } 062 063}