001/* 002 * (C) Copyright 2016 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 * "Guillaume Renard" 018 */ 019 020package org.nuxeo.ecm.collections.core.io; 021 022import static org.nuxeo.ecm.core.io.registry.reflect.Instantiations.SINGLETON; 023import static org.nuxeo.ecm.core.io.registry.reflect.Priorities.REFERENCE; 024 025import java.io.IOException; 026 027import org.codehaus.jackson.JsonGenerator; 028import org.nuxeo.ecm.collections.api.FavoritesManager; 029import org.nuxeo.ecm.core.api.DocumentModel; 030import org.nuxeo.ecm.core.io.marshallers.json.enrichers.AbstractJsonEnricher; 031import org.nuxeo.ecm.core.io.registry.context.RenderingContext.SessionWrapper; 032import org.nuxeo.ecm.core.io.registry.reflect.Setup; 033import org.nuxeo.runtime.api.Framework; 034 035/** 036 * Enricher that add a boolean flag whether a document belongs to the current user's favorites. 037 * 038 * @since 8.1 039 */ 040@Setup(mode = SINGLETON, priority = REFERENCE) 041public class FavoritesJsonEnricher extends AbstractJsonEnricher<DocumentModel> { 042 043 public static final String NAME = "favorites"; 044 045 public static final String IS_FAVORITE = "isFavorite"; 046 047 public FavoritesJsonEnricher() { 048 super(NAME); 049 } 050 051 @Override 052 public void write(JsonGenerator jg, DocumentModel document) throws IOException { 053 jg.writeFieldName(NAME); 054 jg.writeStartObject(); 055 boolean isFavorite = false; 056 try (SessionWrapper wrapper = ctx.getSession(document)) { 057 isFavorite = Framework.getService(FavoritesManager.class).isFavorite(document, wrapper.getSession()); 058 } 059 jg.writeBooleanField(IS_FAVORITE, isFavorite); 060 jg.writeEndObject(); 061 } 062 063}