components/camel-salesforce/camel-salesforce-component/src/main/java/org/apache/camel/component/salesforce/api/dto/composite/SObjectNodeXStreamConverter.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.camel.component.salesforce.api.dto.composite;

import java.util.List;
import java.util.Map;

import com.thoughtworks.xstream.converters.ConversionException;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;

public final class SObjectNodeXStreamConverter implements Converter {

    @Override
    public boolean canConvert(final Class type) {
        return SObjectNode.class.equals(type);
    }

    @Override
    public void marshal(final Object source, final HierarchicalStreamWriter writer, final MarshallingContext context) {
        final SObjectNode node = (SObjectNode)source;

        writer.addAttribute("type", node.object.getAttributes().getType());
        writer.addAttribute("referenceId", node.object.getAttributes().getReferenceId());

        context.convertAnother(node.object);

        for (final Map.Entry<String, List<SObjectNode>> e : node.records.entrySet()) {
            writer.startNode(e.getKey());

            context.convertAnother(e.getValue());

            writer.endNode();
        }
    }

    @Override
    public Object unmarshal(final HierarchicalStreamReader reader, final UnmarshallingContext context) {
        throw new ConversionException("Unmarshalling is not supported");
    }

}