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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2012 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
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* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
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*
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package org.glassfish.jersey.message.internal;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.util.Map;
import java.util.WeakHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.core.Configuration;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Providers;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.PropertyException;
import javax.xml.bind.Unmarshaller;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.transform.sax.SAXSource;
import org.glassfish.jersey.internal.util.PropertiesHelper;
import org.glassfish.jersey.internal.util.collection.Value;
import org.glassfish.jersey.internal.util.collection.Values;
import org.glassfish.jersey.message.MessageProperties;
import org.glassfish.jersey.message.XmlHeader;
import org.xml.sax.InputSource;
/**
* A base class for implementing JAXB-based readers and writers.
*
* @param Java type supported by the provider.
*
* @author Paul Sandoz
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public abstract class AbstractJaxbProvider extends AbstractMessageReaderWriterProvider {
private static final Map jaxbContexts =
new WeakHashMap();
private final Providers ps;
private final boolean fixedMediaType;
private final Value> mtContext;
private final Value> mtUnmarshaller;
private final Value> mtMarshaller;
private Value formattedOutput = Values.of(Boolean.FALSE);
private Value xmlRootElementProcessing = Values.of(Boolean.FALSE);
public AbstractJaxbProvider(final Providers ps) {
this(ps, null);
}
public AbstractJaxbProvider(final Providers ps, final MediaType mt) {
this.ps = ps;
fixedMediaType = mt != null;
if (fixedMediaType) {
this.mtContext = Values.lazy(new Value>() {
@Override
public ContextResolver get() {
return ps.getContextResolver(JAXBContext.class, mt);
}
});
this.mtUnmarshaller = Values.lazy(new Value>() {
@Override
public ContextResolver get() {
return ps.getContextResolver(Unmarshaller.class, mt);
}
});
this.mtMarshaller = Values.lazy(new Value>() {
@Override
public ContextResolver get() {
return ps.getContextResolver(Marshaller.class, mt);
}
});
} else {
this.mtContext = null;
this.mtUnmarshaller = null;
this.mtMarshaller = null;
}
}
// TODO This provider should be registered and configured via a feature.
@Context
public void setConfiguration(final Configuration config) {
formattedOutput = Values.lazy(new Value() {
@Override
public Boolean get() {
return PropertiesHelper.isProperty(config.getProperty(MessageProperties.XML_FORMAT_OUTPUT));
}
});
xmlRootElementProcessing = Values.lazy(new Value() {
@Override
public Boolean get() {
return PropertiesHelper.isProperty(config.getProperty(MessageProperties.JAXB_PROCESS_XML_ROOT_ELEMENT));
}
});
}
protected boolean isSupported(MediaType m) {
return true;
}
protected final Unmarshaller getUnmarshaller(Class type, MediaType mt) throws JAXBException {
if (fixedMediaType) {
return getUnmarshaller(type);
}
final ContextResolver uncr = ps.getContextResolver(Unmarshaller.class, mt);
if (uncr != null) {
Unmarshaller u = uncr.getContext(type);
if (u != null) {
return u;
}
}
return getJAXBContext(type, mt).createUnmarshaller();
}
private Unmarshaller getUnmarshaller(Class type) throws JAXBException {
final ContextResolver resolver = mtUnmarshaller.get();
if (resolver != null) {
Unmarshaller u = resolver.getContext(type);
if (u != null) {
return u;
}
}
return getJAXBContext(type).createUnmarshaller();
}
protected final Marshaller getMarshaller(Class type, MediaType mt) throws JAXBException {
if (fixedMediaType) {
return getMarshaller(type);
}
final ContextResolver mcr = ps.getContextResolver(Marshaller.class, mt);
if (mcr != null) {
Marshaller m = mcr.getContext(type);
if (m != null) {
return m;
}
}
Marshaller m = getJAXBContext(type, mt).createMarshaller();
if (formattedOutput.get()) {
m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, formattedOutput.get());
}
return m;
}
private Marshaller getMarshaller(Class type) throws JAXBException {
final ContextResolver resolver = mtMarshaller.get();
if (resolver != null) {
Marshaller u = resolver.getContext(type);
if (u != null) {
return u;
}
}
Marshaller m = getJAXBContext(type).createMarshaller();
if (formattedOutput.get()) {
m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, formattedOutput.get());
}
return m;
}
private JAXBContext getJAXBContext(Class type, MediaType mt) throws JAXBException {
final ContextResolver cr = ps.getContextResolver(JAXBContext.class, mt);
if (cr != null) {
JAXBContext c = cr.getContext(type);
if (c != null) {
return c;
}
}
return getStoredJaxbContext(type);
}
private JAXBContext getJAXBContext(Class type) throws JAXBException {
final ContextResolver resolver = mtContext.get();
if (resolver != null) {
JAXBContext c = resolver.getContext(type);
if (c != null) {
return c;
}
}
return getStoredJaxbContext(type);
}
protected JAXBContext getStoredJaxbContext(Class type) throws JAXBException {
synchronized (jaxbContexts) {
JAXBContext c = jaxbContexts.get(type);
if (c == null) {
c = JAXBContext.newInstance(type);
jaxbContexts.put(type, c);
}
return c;
}
}
protected static SAXSource getSAXSource(SAXParserFactory spf,
InputStream entityStream) throws JAXBException {
try {
return new SAXSource(
spf.newSAXParser().getXMLReader(),
new InputSource(entityStream));
} catch (Exception ex) {
throw new JAXBException("Error creating SAXSource", ex);
}
}
protected boolean isFormattedOutput() {
return formattedOutput.get();
}
protected boolean isXmlRootElementProcessing() {
return xmlRootElementProcessing.get();
}
protected void setHeader(Marshaller m, Annotation[] annotations) throws PropertyException {
for (Annotation a : annotations) {
if (a instanceof XmlHeader) {
try {
// standalone jaxb ri
m.setProperty("com.sun.xml.bind.xmlHeaders", ((XmlHeader) a).value());
} catch (PropertyException e) {
try {
// jaxb ri from jdk
m.setProperty("com.sun.xml.internal.bind.xmlHeaders", ((XmlHeader) a).value());
} catch (PropertyException ex) {
// other jaxb implementation
Logger.getLogger(AbstractJaxbProvider.class.getName()).log(
Level.WARNING, "@XmlHeader annotation is not supported with this JAXB implementation. Please use JAXB RI if you need this feature.");
}
}
break;
}
}
}
}