/*
* Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Adam Megacz
*/
package com.caucho.jaxb;
import com.caucho.jaxb.adapters.BeanAdapter;
import com.caucho.jaxb.skeleton.ClassSkeleton;
import com.caucho.jaxb.property.Property;
import com.caucho.util.L10N;
import com.caucho.vfs.*;
import com.caucho.xml.stream.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import javax.xml.bind.*;
import javax.xml.bind.annotation.adapters.*;
import javax.xml.bind.attachment.*;
import javax.xml.bind.helpers.*;
import javax.xml.namespace.QName;
import javax.xml.stream.*;
import javax.xml.stream.events.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.sax.*;
import javax.xml.validation.*;
import java.net.URL;
import java.io.*;
import java.util.*;
// XXX extends AbstractUnmarshallerImpl
public class UnmarshallerImpl implements Unmarshaller
{
private static final L10N L = new L10N(UnmarshallerImpl.class);
private JAXBContextImpl _context;
protected boolean validating;
private AttachmentUnmarshaller _attachmentUnmarshaller = null;
private ValidationEventHandler _validationEventHandler = null;
private Listener _listener = null;
private HashMap<String,Object> _properties = new HashMap<String,Object>();
private Schema _schema = null;
private XMLReader _xmlreader = null;
private XmlAdapter _adapter = null;
private HashMap<Class,XmlAdapter> _adapters
= new HashMap<Class,XmlAdapter>();
UnmarshallerImpl(JAXBContextImpl context)
throws JAXBException
{
_context = context;
setEventHandler(JAXBContextImpl.DEFAULT_VALIDATION_EVENT_HANDLER);
}
//
// unmarshallers.
//
/**
* Unmarshall from a DOM node.
*/
public Object unmarshal(Node node) throws JAXBException
{
try {
XMLInputFactory factory = _context.getXMLInputFactory();
return unmarshal(factory.createXMLStreamReader(new DOMSource(node)));
}
catch (XMLStreamException e) {
throw new JAXBException(e);
}
}
/**
* Unmarshall from an input source.
*/
protected Object unmarshal(XMLReader reader, InputSource source)
throws JAXBException
{
throw new UnsupportedOperationException();
}
/**
* Unmarshall from an event reader.
*/
public Object unmarshal(XMLEventReader reader) throws JAXBException
{
throw new UnsupportedOperationException();
/*
try {
XMLEvent event = null;
while (reader.hasNext()) {
event = reader.peek();
if (event.isStartElement()) {
StartElement start = (StartElement) event;
ClassSkeleton skel = _context.getRootElement(start.getName());
if (skel == null)
throw new JAXBException(L.l("'{0}' is an unknown root element",
start.getName()));
return skel.read(this, reader);
}
event = reader.nextEvent();
}
throw new JAXBException(L.l("Expected root element"));
}
catch (JAXBException e) {
throw e;
}
catch (Exception e) {
throw new RuntimeException(e);
}*/
}
public <T> JAXBElement<T> unmarshal(XMLEventReader xmlEventReader,
Class<T> declaredType)
throws JAXBException
{
throw new UnsupportedOperationException();
}
public Object unmarshal(XMLStreamReader reader)
throws JAXBException
{
try {
if (reader.nextTag() != XMLStreamReader.START_ELEMENT)
throw new JAXBException(L.l("Expected root element"));
ClassSkeleton skel = _context.getRootElement(reader.getName());
if (skel == null)
throw new JAXBException(L.l("'{0}' is an unknown root element",
reader.getName()));
return skel.read(this, reader);
}
catch (JAXBException e) {
throw e;
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Parses the XML based on an InputStream
*/
public Object unmarshal(InputStream is)
throws JAXBException
{
try {
XMLStreamReader reader = new XMLStreamReaderImpl(is);
try {
return unmarshal(reader);
}
finally {
reader.close();
}
}
catch (XMLStreamException e) {
throw new JAXBException(e);
}
}
public <T> JAXBElement<T> unmarshal(XMLStreamReader reader,
Class<T> declaredType)
throws JAXBException
{
try {
while (reader.getEventType() != XMLStreamReader.START_ELEMENT)
reader.next();
QName name = reader.getName();
Property property = _context.createProperty(declaredType);
T val = (T) property.read(this, reader, null);
return new JAXBElement<T>(name, declaredType, val);
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
//
// From AbstractUnmarshallerImpl
//
public UnmarshallerHandler getUnmarshallerHandler()
{
// The idea here is that we return a SAX ContentHandler which the
// user writes to and we use those writes to construct an object.
// The object is retrieved using UnmarshallerHandler.getResult().
// This is a "reusable" operation, so we should return a new handler
// (or at least a reset one) for each call of this function.
return new UnmarshallerHandlerImpl();
}
protected UnmarshalException createUnmarshalException(SAXException e)
{
return new UnmarshalException(e);
}
public <A extends XmlAdapter> A getAdapter(Class<A> type)
{
A a = (A)_adapters.get(type);
if (a == null)
return (A)new BeanAdapter();
return a;
}
public AttachmentUnmarshaller getAttachmentUnmarshaller()
{
return _attachmentUnmarshaller;
}
public ValidationEventHandler getEventHandler() throws JAXBException
{
return _validationEventHandler;
}
public Listener getListener()
{
return _listener;
}
public Object getProperty(String name) throws PropertyException
{
return _properties.get(name);
}
public Schema getSchema()
{
return _schema;
}
protected XMLReader getXMLReader() throws JAXBException
{
return _xmlreader;
}
public boolean isValidating() throws JAXBException
{
return validating;
}
public <A extends XmlAdapter> void setAdapter(Class<A> type, A adapter)
{
_adapters.put(type, adapter);
}
public void setAdapter(XmlAdapter adapter)
{
setAdapter((Class)adapter.getClass(), adapter);
}
public void setAttachmentUnmarshaller(AttachmentUnmarshaller au)
{
_attachmentUnmarshaller = au;
}
public void setEventHandler(ValidationEventHandler handler)
throws JAXBException
{
_validationEventHandler = handler;
}
public void setListener(Listener listener)
{
_listener = listener;
}
public void setProperty(String name, Object value) throws PropertyException
{
_properties.put(name, value);
}
public void setSchema(Schema schema)
{
_schema = schema;
}
public void setValidating(boolean validating) throws JAXBException
{
this.validating = validating;
}
public Object unmarshal(File f) throws JAXBException
{
FileInputStream fis = null;
try {
fis = new FileInputStream(f);
XMLInputFactory factory = _context.getXMLInputFactory();
return unmarshal(factory.createXMLStreamReader(f.getAbsolutePath(), fis));
}
catch (XMLStreamException e) {
throw new JAXBException(e);
}
catch (IOException e) {
throw new JAXBException(e);
}
finally {
try {
if (fis != null)
fis.close();
}
catch (IOException e) {
throw new JAXBException(e);
}
}
}
public Object unmarshal(InputSource inputSource)
throws JAXBException
{
try {
XMLEventReader reader =
new SAXSourceXMLEventReaderImpl(new SAXSource(inputSource));
return unmarshal(reader);
}
catch (XMLStreamException e) {
throw new JAXBException(e);
}
}
public Object unmarshal(Reader reader) throws JAXBException
{
try {
XMLInputFactory factory = _context.getXMLInputFactory();
return unmarshal(factory.createXMLStreamReader(reader));
}
catch (XMLStreamException e) {
throw new JAXBException(e);
}
}
public Object unmarshal(Source source) throws JAXBException
{
try {
XMLInputFactory factory = _context.getXMLInputFactory();
return unmarshal(factory.createXMLEventReader(source));
}
catch (XMLStreamException e) {
throw new JAXBException(e);
}
}
public <T> JAXBElement<T> unmarshal(Node node, Class<T> declaredType)
throws JAXBException
{
throw new UnsupportedOperationException("subclasses must override this");
}
public <T> JAXBElement<T> unmarshal(Source node, Class<T> declaredType)
throws JAXBException
{
try {
XMLInputFactory factory = XMLInputFactory.newInstance();
return unmarshal(factory.createXMLStreamReader(node), declaredType);
}
catch (XMLStreamException e) {
throw new JAXBException(e);
}
}
public Object unmarshal(URL url) throws JAXBException
{
try {
InputStream is = url.openStream();
try {
return unmarshal(is);
}
finally {
is.close();
}
} catch (IOException e) {
throw new JAXBException(e);
}
}
private class UnmarshallerHandlerImpl implements UnmarshallerHandler {
private ContentHandler _handler;
private SAXSourceXMLEventReaderImpl _reader;
private boolean _done = false;
private Object _result = null;
public UnmarshallerHandlerImpl()
{
_reader = new SAXSourceXMLEventReaderImpl();
_handler = _reader.getContentHandler();
}
public Object getResult()
throws JAXBException
{
if (! _done)
throw new IllegalStateException();
if (_result == null)
_result = unmarshal(_reader);
return _result;
}
public void characters(char[] ch, int start, int length)
throws SAXException
{
_handler.characters(ch, start, length);
}
public void endDocument()
throws SAXException
{
_handler.endDocument();
_done = true;
}
public void endElement(String uri, String localName, String qName)
throws SAXException
{
_handler.endElement(uri, localName, qName);
}
public void endPrefixMapping(String prefix)
throws SAXException
{
_handler.endPrefixMapping(prefix);
}
public void ignorableWhitespace(char[] ch, int start, int length)
throws SAXException
{
_handler.ignorableWhitespace(ch, start, length);
}
public void processingInstruction(String target, String data)
throws SAXException
{
_handler.processingInstruction(target, data);
}
public void setDocumentLocator(Locator locator)
{
_handler.setDocumentLocator(locator);
}
public void skippedEntity(String name)
throws SAXException
{
_handler.skippedEntity(name);
}
public void startDocument()
throws SAXException
{
_handler.startDocument();
}
public void startElement(String uri, String localName, String qName,
Attributes atts)
throws SAXException
{
_handler.startElement(uri, localName, qName, atts);
}
public void startPrefixMapping(String prefix, String uri)
throws SAXException
{
_handler.startPrefixMapping(prefix, uri);
}
}
}