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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.net.URI;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
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.ws.addressing.soap.SoapFault;
import org.apache.qpid.management.Names;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
/**
* Generic Serializer for objects.
* It is a general-purpose serializer used for encoding Object values.
*/
public class ObjectSerializer implements Serializer
{
/**
* Mapping between xsd and java types.
*/
private Map<String, Class<?>> xml2Java = new HashMap<String, Class<?>>();
{
xml2Java.put("xsd:long", Long.class);
xml2Java.put("xsd:boolean",Boolean.class);
xml2Java.put("xsd:double",Double.class);
xml2Java.put("xsd:float",Float.class);
xml2Java.put("xsd:integer",Integer.class);
xml2Java.put("xsd:int",Integer.class);
xml2Java.put("xsd:short",Short.class);
xml2Java.put("xsd:string",String.class);
xml2Java.put("xsd:anyURI",URI.class);
xml2Java.put("xsd:dateTime",Date.class);
xml2Java.put("xsd:QName",QName.class);
xml2Java.put("xsd:element",Element.class);
xml2Java.put("xsd:base64Binary",byte[].class);
xml2Java.put("qman:arrayOfLong",Long[].class);
xml2Java.put("qman:arrayOfBoolean",Boolean[].class);
xml2Java.put("qman:arrayOfDouble",Double[].class);
xml2Java.put("qman:arrayOfFloat",Float[].class);
xml2Java.put("qman:arrayOfInteger",Integer[].class);
xml2Java.put("qman:arrayOfShort",Short[].class);
xml2Java.put("qman:arrayOfString",String[].class);
xml2Java.put("qman:arrayOfURI",URI[].class);
xml2Java.put("qman:arrayOfDate",Date[].class);
xml2Java.put("qman:uuid",UUID.class);
xml2Java.put("qman:map",Map.class);
xml2Java.put("qman:map",HashMap.class);
}
private Map<Class<?>, String> java2Xml = new HashMap<Class<?>, String>();
{
java2Xml.put(UUID.class,"qman:uuid");
java2Xml.put(Long.class,"xsd:long");
java2Xml.put(long.class,"xsd:long");
java2Xml.put(Boolean.class,"xsd:boolean");
java2Xml.put(boolean.class,"xsd:boolean");
java2Xml.put(Double.class,"xsd:double");
java2Xml.put(double.class,"xsd:double");
java2Xml.put(Float.class,"xsd:float");
java2Xml.put(float.class,"xsd:float");
java2Xml.put(Integer.class,"xsd:integer");
java2Xml.put(int.class,"xsd:integer");
java2Xml.put(Short.class,"xsd:short");
java2Xml.put(short.class,"xsd:short");
java2Xml.put(String.class,"xsd:string");
java2Xml.put(URI.class,"xsd:anyURI");
java2Xml.put(Date.class,"xsd:dateTime");
java2Xml.put(QName.class,"xsd:QName");
java2Xml.put(Element.class,"xsd:element");
java2Xml.put(byte[].class,"xsd:base64Binary");
java2Xml.put(Long[].class,"qman:arrayOfLong");
java2Xml.put(long[].class,"qman:arrayOfLong");
java2Xml.put(Boolean[].class,"qman:arrayOfBoolean");
java2Xml.put(boolean[].class,"qman:arrayOfBoolean");
java2Xml.put(Double[].class,"qman:arrayOfDouble");
java2Xml.put(double[].class,"qman:arrayOfDouble");
java2Xml.put(Float[].class,"qman:arrayOfFloat");
java2Xml.put(float[].class,"qman:arrayOfFloat");
java2Xml.put(Integer[].class,"qman:arrayOfInteger");
java2Xml.put(int[].class,"qman:arrayOfInteger");
java2Xml.put(Short[].class,"qman:arrayOfShort");
java2Xml.put(short[].class,"qman:arrayOfShort");
java2Xml.put(String[].class,"qman:arrayOfString");
java2Xml.put(URI[].class,"qman:arrayOfURI");
java2Xml.put(Date[].class,"qman:arrayOfDate");
java2Xml.put(Map.class,"qman:map");
java2Xml.put(HashMap.class,"qman:map");
}
/**
* Converts the incoming element into the appropriate Java type.
* The method will fail if :
*
* <br>1) The element has no xsi:type attribute;
* <br>2) The xsi:type attribute has no corresponding java type on this serializer mappings.
*
* @param elementData the xml element containing data to be unmarshalled.l
* @return the java object as result of xml element unmarshalling.
* @throws SoapFault when the marshalling fails.
*/
public Object fromXML(Element elementData) throws SoapFault
{
Attr typeAttribute = elementData.getAttributeNodeNS(
XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI,
Names.TYPE);
if (typeAttribute == null)
{
throw new SoapFault(
"No type attribute was found for the current element. " +
"If you are using this serializer, in order to unmarshal the" +
" opportune type the xsi:type must be specified.");
}
Class<?> clazz = xml2Java.get(typeAttribute.getValue());
if (clazz == null)
{
throw new SoapFault(
String.format(
"No corresponding class was found on this serializer mappings for xsi:type %s.",
typeAttribute));
}
if (clazz == byte[].class) {
return new ByteArraySerializer().fromXML(elementData);
}
return SerializerRegistry.getInstance().getSerializer(clazz).fromXML(elementData);
}
/**
* As this serializer is supposed to deal with generic object types, this method returns Object.class.
*
* @return Object.class
*/
public Class<?> getSerializableType()
{
return Object.class;
}
/**
* Converts the given object (with the given qname) in XML format.
* This method fails if there's no corresponding xml type for the given runtime type of the input object.
*
* @param obj the object to be marshalled.
* @param qname the qualified name that will be used in encoding.
*/
public Element toXML(Object obj, QName qname) throws SoapFault
{
Class<?> clazz = obj.getClass();
Element result = null;
if (clazz == byte[].class) {
result = new ByteArraySerializer().toXML(obj,qname);
}
else {
result = SerializerRegistry.getInstance().getSerializer(clazz).toXML(obj,qname);
}
result.setAttribute(Names.XSI_TYPE, java2Xml.get(clazz));
return result;
}
/**
* Returns the xml type associated with the given class.
*
* @param clazz the class.
* @return the xml type associated with the given class.
*/
public String getXmlType(Class<?> clazz)
{
return java2Xml.get(clazz);
}
}
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