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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2014 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* 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
* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
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* exception as provided by Oracle in the GPL Version 2 section of the License
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*
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*/
package org.glassfish.jersey.message.internal;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.nio.charset.Charset;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.NoContentException;
import javax.ws.rs.ext.Providers;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.UnmarshalException;
import javax.xml.bind.Unmarshaller;
import org.glassfish.jersey.internal.LocalizationMessages;
/**
* An abstract provider for {@link JAXBElement}.
*
* Implementing classes may extend this class to provide specific marshalling
* and unmarshalling behaviour.
*
* When unmarshalling a {@link UnmarshalException} will result in a
* {@link WebApplicationException} being thrown with a status of 400
* (Client error), and a {@link JAXBException} will result in a
* {@link WebApplicationException} being thrown with a status of 500
* (Internal Server error).
*
* When marshalling a {@link JAXBException} will result in a
* {@link WebApplicationException} being thrown with a status of 500
* (Internal Server error).
*
* @author Paul Sandoz
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public abstract class AbstractJaxbElementProvider extends AbstractJaxbProvider> {
public AbstractJaxbElementProvider(Providers ps) {
super(ps);
}
public AbstractJaxbElementProvider(Providers ps, MediaType mt) {
super(ps, mt);
}
@Override
public boolean isReadable(Class type, Type genericType, Annotation annotations[], MediaType mediaType) {
return type == JAXBElement.class && genericType instanceof ParameterizedType && isSupported(mediaType);
}
@Override
public boolean isWriteable(Class type, Type genericType, Annotation annotations[], MediaType mediaType) {
return JAXBElement.class.isAssignableFrom(type) && isSupported(mediaType);
}
@Override
public final JAXBElement readFrom(
Class> type,
Type genericType,
Annotation annotations[],
MediaType mediaType,
MultivaluedMap httpHeaders,
InputStream inputStream) throws IOException {
final EntityInputStream entityStream = EntityInputStream.create(inputStream);
if (entityStream.isEmpty()) {
throw new NoContentException(LocalizationMessages.ERROR_READING_ENTITY_MISSING());
}
final ParameterizedType pt = (ParameterizedType) genericType;
final Class ta = (Class) pt.getActualTypeArguments()[0];
try {
return readFrom(ta, mediaType, getUnmarshaller(ta, mediaType), entityStream);
} catch (UnmarshalException ex) {
throw new BadRequestException(ex);
} catch (JAXBException ex) {
throw new InternalServerErrorException(ex);
}
}
protected abstract JAXBElement readFrom(Class type, MediaType mediaType, Unmarshaller u, InputStream entityStream)
throws JAXBException;
@Override
public final void writeTo(
JAXBElement t,
Class type,
Type genericType,
Annotation annotations[],
MediaType mediaType,
MultivaluedMap httpHeaders,
OutputStream entityStream) throws IOException {
try {
final Marshaller m = getMarshaller(t.getDeclaredType(), mediaType);
final Charset c = getCharset(mediaType);
if (c != UTF8) {
m.setProperty(Marshaller.JAXB_ENCODING, c.name());
}
setHeader(m, annotations);
writeTo(t, mediaType, c, m, entityStream);
} catch (JAXBException ex) {
throw new InternalServerErrorException(ex);
}
}
protected abstract void writeTo(JAXBElement t, MediaType mediaType, Charset c,
Marshaller m, OutputStream entityStream)
throws JAXBException;
}
