001/*
002 * Copyright (c) 2012 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the Eclipse Public License v1.0
006 * which accompanies this distribution, and is available at
007 * http://www.eclipse.org/legal/epl-v10.html
008 *
009 * Contributors:
010 *     Nuxeo
011 */
012package org.nuxeo.ecm.automation.client.jaxrs.spi.marshallers;
013
014import java.io.IOException;
015
016import org.codehaus.jackson.JsonGenerator;
017import org.codehaus.jackson.JsonParser;
018import org.nuxeo.ecm.automation.client.annotations.EntityType;
019import org.nuxeo.ecm.automation.client.jaxrs.spi.JsonMarshaller;
020
021/**
022 * Marshaller for the default ObjectCodec for the java Boolean class instances. Returned into entity-type primitive the
023 * content of existing {@link EntityType} annotation.
024 *
025 * @author ogrisel
026 * @since 5.7
027 */
028public class PojoMarshaller<T> implements JsonMarshaller<T> {
029
030    final Class<T> type;
031
032    protected String entityTypeName;
033
034    public PojoMarshaller(Class<T> type) {
035        this.type = type;
036        this.entityTypeName = "";
037        if (type.getAnnotation(EntityType.class) != null) {
038            this.entityTypeName = type.getAnnotation(EntityType.class).value();
039        }
040    }
041
042    public static <T> PojoMarshaller<T> forClass(Class<T> type) {
043        return new PojoMarshaller<T>(type);
044    }
045
046    @Override
047    public String getType() {
048        return entityTypeName.isEmpty() ? type.getName() : entityTypeName;
049    }
050
051    @Override
052    public Class<T> getJavaType() {
053        return type;
054    }
055
056    @Override
057    public T read(JsonParser jp) throws IOException {
058        jp.nextToken();
059        jp.nextToken();
060        return jp.readValueAs(type);
061    }
062
063    @Override
064    public void write(JsonGenerator jg, Object value) throws IOException {
065        jg.writeStartObject();
066        jg.writeStringField("entity-type", getType());
067        jg.writeObjectField("value", value);
068        jg.writeEndObject();
069    }
070
071}