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.platform.tag.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.nuxeo.ecm.core.api.DocumentModel; 028import org.nuxeo.ecm.core.io.marshallers.json.enrichers.AbstractJsonEnricher; 029import org.nuxeo.ecm.core.io.registry.context.RenderingContext.SessionWrapper; 030import org.nuxeo.ecm.core.io.registry.reflect.Setup; 031import org.nuxeo.ecm.platform.tag.TagService; 032import org.nuxeo.runtime.api.Framework; 033 034import com.fasterxml.jackson.core.JsonGenerator; 035 036/** 037 * Enricher that add the tags associated to the document. 038 * 039 * @since 8.3 040 */ 041@Setup(mode = SINGLETON, priority = REFERENCE) 042public class TagsJsonEnricher extends AbstractJsonEnricher<DocumentModel> { 043 044 public static final String NAME = "tags"; 045 046 public TagsJsonEnricher() { 047 super(NAME); 048 } 049 050 @Override 051 public void write(JsonGenerator jg, DocumentModel document) throws IOException { 052 TagService tagService = Framework.getService(TagService.class); 053 jg.writeArrayFieldStart(NAME); 054 try (SessionWrapper wrapper = ctx.getSession(document)) { 055 for (String tag : tagService.getTags(wrapper.getSession(), document.getId())) { 056 jg.writeString(tag); 057 } 058 } 059 jg.writeEndArray(); 060 061 } 062 063}