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/*
*
* 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.qpid.management.wsdm.muse.serializer;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import javax.xml.XMLConstants;
import javax.xml.namespace.QName;
import org.apache.muse.core.serializer.Serializer;
import org.apache.muse.core.serializer.SerializerRegistry;
import org.apache.muse.util.xml.XmlUtils;
import org.apache.muse.ws.addressing.soap.SoapFault;
import org.apache.qpid.management.Names;
import org.w3c.dom.Element;
/**
* Implementation of Muse Serializer for Map type.
*
* <amspam>
* <entry>
* <key>
* <value>
* </entry>
* </amsasm>
*
* @author Andrea Gazzarini
*/
public class MapSerializer implements Serializer
{
ByteArraySerializer _byteArraySerializer = new ByteArraySerializer();
Serializer _objectSerializer = SerializerRegistry.getInstance().getSerializer(Object.class);
Serializer _stringSerializer = SerializerRegistry.getInstance().getSerializer(String.class);
/**
* Return a map representation of the given xml element.
*
* @param xml the element to unmarshal.
* @throws SoapFault when the unmarshalling fails.
*/
public Object fromXML(Element xml) throws SoapFault
{
Map<Object,Object> result = new HashMap<Object,Object>();
Element[] children = XmlUtils.getAllElements(xml);
Serializer objectDeserializer = SerializerRegistry.getInstance().getSerializer(Object.class);
for (Element entry : children)
{
Element[] keysAndValues = XmlUtils.getAllElements(entry);
Object key = null;
Object value = null;
for (Element element : keysAndValues)
{
if (Names.KEY.equals(element.getLocalName()))
{
key = _stringSerializer.fromXML(element);
} else if (Names.VALUE.equals(element.getLocalName()))
{
value = objectDeserializer.fromXML(element);
}
}
result.put(key, value);
}
return result;
}
/**
* Returns the java type associated to this class.
*
* @return the java type associated to this class.
*/
public Class<?> getSerializableType()
{
return Map.class;
}
/**
* Return an xml representation of the given Map with the given name.
*
* @param object the Map to marshal.
* @param qname the qualified (xml) name of the object to use in xml representation.
* @return the xml representation of the given Map.
* @throws SoapFault when the marshalling fails.
*/
public Element toXML(Object obj, QName qname) throws SoapFault
{
Map<?, ?> data = (Map<?, ?>) obj;
QName entryQName = new QName(qname.getNamespaceURI(),Names.ENTRY,qname.getPrefix());
QName keyQName = new QName(qname.getNamespaceURI(),Names.KEY,qname.getPrefix());
QName valueQName = new QName(qname.getNamespaceURI(),Names.VALUE,qname.getPrefix());
Element root = XmlUtils.createElement(qname);
root.setAttribute("xmlns:xsi", XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI);
for (Entry<?, ?> mapEntry: data.entrySet())
{
Element entry = XmlUtils.createElement(entryQName);
entry.appendChild(_stringSerializer.toXML(mapEntry.getKey(), keyQName));
if (mapEntry.getValue().getClass() == byte[].class) {
entry.appendChild(_byteArraySerializer.toXML(mapEntry.getValue(), valueQName));
} else {
entry.appendChild(_objectSerializer.toXML(mapEntry.getValue(), valueQName));
}
root.appendChild(entry);
}
return root;
}
}
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