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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
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* file and include the License file at packager/legal/LICENSE.txt.
*
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package com.sun.jersey.json.impl;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.Charset;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.UnmarshalException;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import com.sun.jersey.api.json.JSONConfigurated;
import com.sun.jersey.api.json.JSONConfiguration;
import com.sun.jersey.api.json.JSONUnmarshaller;
/**
* @author Jakub Podlesak (jakub.podlesak at oracle.com)
* @author Michal Gajdos (michal.gajdos at oracle.com)
*/
public class BaseJSONUnmarshaller implements JSONUnmarshaller, JSONConfigurated {
private static final Charset UTF8 = Charset.forName("UTF-8");
protected final Unmarshaller jaxbUnmarshaller;
private final JAXBContext jaxbContext;
protected final JSONConfiguration jsonConfig;
public BaseJSONUnmarshaller(JAXBContext jaxbContext, JSONConfiguration jsonConfig) throws JAXBException {
this(jaxbContext.createUnmarshaller(), jaxbContext, jsonConfig);
}
public BaseJSONUnmarshaller(Unmarshaller jaxbUnmarshaller, JAXBContext jaxbContext, JSONConfiguration jsonConfig) {
this.jaxbUnmarshaller = jaxbUnmarshaller;
this.jaxbContext = jaxbContext;
this.jsonConfig = jsonConfig;
}
// JSONConfigurated
public JSONConfiguration getJSONConfiguration() {
return jsonConfig;
}
// JSONUnmarshaller
public T unmarshalFromJSON(InputStream inputStream, Class expectedType) throws JAXBException {
return unmarshalFromJSON(new InputStreamReader(inputStream, UTF8), expectedType);
}
public T unmarshalFromJSON(Reader reader, Class expectedType) throws JAXBException {
if (jsonConfig.isRootUnwrapping() || !expectedType.isAnnotationPresent(XmlRootElement.class)) {
return unmarshalJAXBElementFromJSON(reader, expectedType).getValue();
} else {
return (T) jaxbUnmarshaller.unmarshal(createXmlStreamReader(reader, expectedType));
}
}
public JAXBElement unmarshalJAXBElementFromJSON(InputStream inputStream, Class declaredType) throws JAXBException {
return unmarshalJAXBElementFromJSON(new InputStreamReader(inputStream, UTF8), declaredType);
}
public JAXBElement unmarshalJAXBElementFromJSON(Reader reader, Class declaredType) throws JAXBException {
return jaxbUnmarshaller.unmarshal(createXmlStreamReader(reader, declaredType), declaredType);
}
private XMLStreamReader createXmlStreamReader(Reader reader, Class expectedType) throws JAXBException {
try {
return Stax2JsonFactory.createReader(reader, jsonConfig,
jsonConfig.isRootUnwrapping() ? JSONHelper.getRootElementName(expectedType) : null, expectedType, jaxbContext);
} catch (XMLStreamException ex) {
throw new UnmarshalException("Error creating JSON-based XMLStreamReader", ex);
}
}
}