001/*
002 * (C) Copyright 2012 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 *     Nuxeo
018 */
019package org.nuxeo.ecm.automation.client.jaxrs.spi.marshallers;
020
021import java.io.IOException;
022
023import org.codehaus.jackson.JsonGenerator;
024import org.codehaus.jackson.JsonParser;
025import org.nuxeo.ecm.automation.client.annotations.EntityType;
026import org.nuxeo.ecm.automation.client.jaxrs.spi.JsonMarshaller;
027
028/**
029 * Marshaller for the default ObjectCodec for the java Boolean class instances. Returned into entity-type primitive the
030 * content of existing {@link EntityType} annotation.
031 *
032 * @author ogrisel
033 * @since 5.7
034 */
035public class PojoMarshaller<T> implements JsonMarshaller<T> {
036
037    final Class<T> type;
038
039    protected String entityTypeName;
040
041    public PojoMarshaller(Class<T> type) {
042        this.type = type;
043        this.entityTypeName = "";
044        if (type.getAnnotation(EntityType.class) != null) {
045            this.entityTypeName = type.getAnnotation(EntityType.class).value();
046        }
047    }
048
049    public static <T> PojoMarshaller<T> forClass(Class<T> type) {
050        return new PojoMarshaller<T>(type);
051    }
052
053    @Override
054    public String getType() {
055        return entityTypeName.isEmpty() ? type.getName() : entityTypeName;
056    }
057
058    @Override
059    public Class<T> getJavaType() {
060        return type;
061    }
062
063    @Override
064    public T read(JsonParser jp) throws IOException {
065        jp.nextToken();
066        jp.nextToken();
067        return jp.readValueAs(type);
068    }
069
070    @Override
071    public void write(JsonGenerator jg, Object value) throws IOException {
072        jg.writeStartObject();
073        jg.writeStringField("entity-type", getType());
074        jg.writeObjectField("value", value);
075        jg.writeEndObject();
076    }
077
078}