001/* 002 * (C) Copyright 2015 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 * Nicolas Chapurlat <nchapurlat@nuxeo.com> 018 */ 019 020package org.nuxeo.ecm.platform.thumbnail.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.reflect.Setup; 030 031import com.fasterxml.jackson.core.JsonGenerator; 032 033/** 034 * Enrich {@link DocumentModel} Json. 035 * <p> 036 * Add {@link DocumentModel}'s thumbnail url as json attachment. 037 * </p> 038 * <p> 039 * Enable if parameter enrichers-document=thumbnail is present. 040 * </p> 041 * <p> 042 * Format is: 043 * 044 * <pre> 045 * {@code 046 * { 047 * "entity-type":"document", 048 * ... 049 * "contextParameters": { 050 * "thumbnail": { 051 * "url": "THUMBNAIL_URL" 052 * }, 053 * } 054 * } 055 * </pre> 056 * </p> 057 * 058 * @since 7.2 059 */ 060@Setup(mode = SINGLETON, priority = REFERENCE) 061public class ThumbnailJsonEnricher extends AbstractJsonEnricher<DocumentModel> { 062 063 public static final String NAME = "thumbnail"; 064 065 public static final String THUMBNAIL_URL_LABEL = "url"; 066 067 public static final String THUMBNAIL_URL_PATTERN = "%s/api/v1/repo/%s/id/%s/@rendition/thumbnail"; 068 069 public ThumbnailJsonEnricher() { 070 super(NAME); 071 } 072 073 @Override 074 public void write(JsonGenerator jg, DocumentModel document) throws IOException { 075 jg.writeFieldName(NAME); 076 jg.writeStartObject(); 077 jg.writeStringField(THUMBNAIL_URL_LABEL, 078 String.format(THUMBNAIL_URL_PATTERN, ctx.getBaseUrl().replaceAll("/$", ""), 079 document.getRepositoryName(), document.getId())); 080 jg.writeEndObject(); 081 082 } 083}