001/* 002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl-2.1.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nicolas Chapurlat <nchapurlat@nuxeo.com> 016 */ 017 018package org.nuxeo.ecm.core.io.marshallers.json.types; 019 020import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE; 021import static org.nuxeo.ecm.core.io.registry.reflect.Instantiations.SINGLETON; 022import static org.nuxeo.ecm.core.io.registry.reflect.Priorities.REFERENCE; 023 024import java.io.IOException; 025import java.io.OutputStream; 026 027import org.codehaus.jackson.JsonGenerator; 028import org.nuxeo.ecm.core.io.marshallers.json.ExtensibleEntityJsonWriter; 029import org.nuxeo.ecm.core.io.marshallers.json.OutputStreamWithJsonWriter; 030import org.nuxeo.ecm.core.io.marshallers.json.enrichers.AbstractJsonEnricher; 031import org.nuxeo.ecm.core.io.registry.Writer; 032import org.nuxeo.ecm.core.io.registry.reflect.Setup; 033import org.nuxeo.ecm.core.schema.types.CompositeType; 034import org.nuxeo.ecm.core.schema.types.Schema; 035 036import com.thoughtworks.xstream.io.json.JsonWriter; 037 038/** 039 * Convert {@link CompositeType} to Json. 040 * <p> 041 * This marshaller is enrichable: register class implementing {@link AbstractJsonEnricher} and managing 042 * {@link CompositeType}. 043 * </p> 044 * <p> 045 * This marshaller is also extensible: extend it and simply override 046 * {@link ExtensibleEntityJsonWriter#extend(CompositeType, JsonWriter)}. 047 * </p> 048 * <p> 049 * Format is: 050 * 051 * <pre> 052 * {@code 053 * { 054 * "entity-type":"facet", 055 * "name": "FACET_NAME", 056 * "schemas": [ { see {@link SchemaJsonWriter} for format }, { ... }, ... ], 057 * <-- contextParameters if there are enrichers activated 058 * <-- additional property provided by extend() method 059 * } 060 * </pre> 061 * 062 * </p> 063 * 064 * @since 7.2 065 */ 066@Setup(mode = SINGLETON, priority = REFERENCE) 067public class FacetJsonWriter extends ExtensibleEntityJsonWriter<CompositeType> { 068 069 public static final String ENTITY_TYPE = "facet"; 070 071 public FacetJsonWriter() { 072 super(ENTITY_TYPE, CompositeType.class); 073 } 074 075 @Override 076 protected void writeEntityBody(CompositeType facet, JsonGenerator jg) throws IOException { 077 jg.writeStringField("name", facet.getName()); 078 if (facet.getSchemaNames() != null && facet.getSchemaNames().length > 0) { 079 jg.writeArrayFieldStart("schemas"); 080 Writer<Schema> schemaWriter = registry.getWriter(ctx, Schema.class, APPLICATION_JSON_TYPE); 081 for (Schema schema : facet.getSchemas()) { 082 OutputStream out = new OutputStreamWithJsonWriter(jg); 083 schemaWriter.write(schema, Schema.class, Schema.class, APPLICATION_JSON_TYPE, out); 084 } 085 jg.writeEndArray(); 086 } 087 } 088 089}