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package com.sun.xml.ws.message.jaxb;
import com.sun.istack.FragmentContentHandler;
import com.sun.istack.NotNull;
import com.sun.xml.bind.api.Bridge;
import com.sun.xml.bind.api.JAXBRIContext;
import com.sun.xml.stream.buffer.MutableXMLStreamBuffer;
import com.sun.xml.stream.buffer.XMLStreamBuffer;
import com.sun.xml.stream.buffer.XMLStreamBufferResult;
import com.sun.xml.ws.api.SOAPVersion;
import com.sun.xml.ws.api.message.AttachmentSet;
import com.sun.xml.ws.api.message.HeaderList;
import com.sun.xml.ws.api.message.Message;
import com.sun.xml.ws.message.AbstractMessageImpl;
import com.sun.xml.ws.message.AttachmentSetImpl;
import com.sun.xml.ws.message.RootElementSniffer;
import com.sun.xml.ws.message.stream.StreamMessage;
import com.sun.xml.ws.streaming.XMLStreamWriterUtil;
import com.sun.xml.ws.streaming.XMLStreamReaderUtil;
import com.sun.xml.ws.streaming.MtomStreamWriter;
import org.xml.sax.ContentHandler;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.attachment.AttachmentMarshaller;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.util.JAXBResult;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import static javax.xml.stream.XMLStreamConstants.START_DOCUMENT;
import javax.xml.transform.Source;
import javax.xml.ws.WebServiceException;
import java.io.OutputStream;
import java.util.Map;
/**
* {@link Message} backed by a JAXB bean.
*
* @author Kohsuke Kawaguchi
*/
public final class JAXBMessage extends AbstractMessageImpl {
private HeaderList headers;
/**
* The JAXB object that represents the header.
*/
private final Object jaxbObject;
private final AttachmentSetImpl attachmentSet;
private final Bridge bridge;
/**
* Lazily sniffed payload element name
*/
private String nsUri,localName;
/**
* If we have the infoset representation for the payload, this field is non-null.
*/
private XMLStreamBuffer infoset;
/**
* Creates a {@link Message} backed by a JAXB bean.
*
* @param context
* The JAXBContext to be used for marshalling.
* @param jaxbObject
* The JAXB object that represents the payload. must not be null. This object
* must be bound to an element (which means it either is a {@link JAXBElement} or
* an instanceof a class with {@link XmlRootElement}).
* @param soapVersion
* The SOAP version of the message. Must not be null.
*/
public static Message create(JAXBRIContext context, Object jaxbObject, SOAPVersion soapVersion) {
if(!context.hasSwaRef()) {
return new JAXBMessage(context,jaxbObject,soapVersion);
}
// If we have swaRef, then that means we might have attachments.
// to comply with the packet API, we need to eagerly turn the JAXB object into infoset
// to correctly find out about attachments.
try {
MutableXMLStreamBuffer xsb = new MutableXMLStreamBuffer();
Marshaller m = context.createMarshaller();
AttachmentSetImpl attachments = new AttachmentSetImpl();
AttachmentMarshallerImpl am = new AttachmentMarshallerImpl(attachments);
m.setAttachmentMarshaller(am);
am.cleanup();
m.marshal(jaxbObject,xsb.createFromXMLStreamWriter());
// any way to reuse this XMLStreamBuffer in StreamMessage?
return new StreamMessage(null,attachments,xsb.readAsXMLStreamReader(),soapVersion);
} catch (JAXBException e) {
throw new WebServiceException(e);
} catch (XMLStreamException e) {
throw new WebServiceException(e);
}
}
private JAXBMessage( JAXBRIContext context, Object jaxbObject, SOAPVersion soapVer ) {
super(soapVer);
this.bridge = new MarshallerBridge(context);
this.jaxbObject = jaxbObject;
this.attachmentSet = new AttachmentSetImpl();
}
/**
* Creates a {@link Message} backed by a JAXB bean.
*
* @param bridge
* Specify the payload tag name and how jaxbObject is bound.
* @param jaxbObject
*/
public static Message create(Bridge bridge, Object jaxbObject, SOAPVersion soapVer) {
if(!bridge.getContext().hasSwaRef()) {
return new JAXBMessage(bridge,jaxbObject,soapVer);
}
// If we have swaRef, then that means we might have attachments.
// to comply with the packet API, we need to eagerly turn the JAXB object into infoset
// to correctly find out about attachments.
try {
MutableXMLStreamBuffer xsb = new MutableXMLStreamBuffer();
AttachmentSetImpl attachments = new AttachmentSetImpl();
AttachmentMarshallerImpl am = new AttachmentMarshallerImpl(attachments);
bridge.marshal(jaxbObject,xsb.createFromXMLStreamWriter(), am);
am.cleanup();
// any way to reuse this XMLStreamBuffer in StreamMessage?
return new StreamMessage(null,attachments,xsb.readAsXMLStreamReader(),soapVer);
} catch (JAXBException e) {
throw new WebServiceException(e);
} catch (XMLStreamException e) {
throw new WebServiceException(e);
}
}
private JAXBMessage(Bridge bridge, Object jaxbObject, SOAPVersion soapVer) {
super(soapVer);
// TODO: think about a better way to handle BridgeContext
this.bridge = bridge;
this.jaxbObject = jaxbObject;
QName tagName = bridge.getTypeReference().tagName;
this.nsUri = tagName.getNamespaceURI();
this.localName = tagName.getLocalPart();
this.attachmentSet = new AttachmentSetImpl();
}
/**
* Copy constructor.
*/
public JAXBMessage(JAXBMessage that) {
super(that);
this.headers = that.headers;
if(this.headers!=null)
this.headers = new HeaderList(this.headers);
this.attachmentSet = that.attachmentSet;
this.jaxbObject = that.jaxbObject;
this.bridge = that.bridge;
}
@Override
public @NotNull AttachmentSet getAttachments() {
return attachmentSet;
}
public boolean hasHeaders() {
return headers!=null && !headers.isEmpty();
}
public HeaderList getHeaders() {
if(headers==null)
headers = new HeaderList();
return headers;
}
public String getPayloadLocalPart() {
if(localName==null)
sniff();
return localName;
}
public String getPayloadNamespaceURI() {
if(nsUri==null)
sniff();
return nsUri;
}
public boolean hasPayload() {
return true;
}
/**
* Obtains the tag name of the root element.
*/
private void sniff() {
RootElementSniffer sniffer = new RootElementSniffer(false);
try {
bridge.marshal(jaxbObject,sniffer);
} catch (JAXBException e) {
// if it's due to us aborting the processing after the first element,
// we can safely ignore this exception.
//
// if it's due to error in the object, the same error will be reported
// when the readHeader() method is used, so we don't have to report
// an error right now.
nsUri = sniffer.getNsUri();
localName = sniffer.getLocalName();
}
}
public Source readPayloadAsSource() {
return new JAXBBridgeSource(bridge,jaxbObject);
}
public T readPayloadAsJAXB(Unmarshaller unmarshaller) throws JAXBException {
JAXBResult out = new JAXBResult(unmarshaller);
// since the bridge only produces fragments, we need to fire start/end document.
try {
out.getHandler().startDocument();
bridge.marshal(jaxbObject,out);
out.getHandler().endDocument();
} catch (SAXException e) {
throw new JAXBException(e);
}
return (T)out.getResult();
}
public XMLStreamReader readPayload() throws XMLStreamException {
try {
if(infoset==null) {
XMLStreamBufferResult sbr = new XMLStreamBufferResult();
bridge.marshal(jaxbObject,sbr);
infoset = sbr.getXMLStreamBuffer();
}
XMLStreamReader reader = infoset.readAsXMLStreamReader();
if(reader.getEventType()== START_DOCUMENT)
XMLStreamReaderUtil.nextElementContent(reader);
return reader;
} catch (JAXBException e) {
// bug 6449684, spec 4.3.4
throw new WebServiceException(e);
}
}
/**
* Writes the payload as SAX events.
*/
protected void writePayloadTo(ContentHandler contentHandler, ErrorHandler errorHandler, boolean fragment) throws SAXException {
try {
if(fragment)
contentHandler = new FragmentContentHandler(contentHandler);
AttachmentMarshallerImpl am = new AttachmentMarshallerImpl(attachmentSet);
bridge.marshal(jaxbObject,contentHandler, am);
am.cleanup();
} catch (JAXBException e) {
// this is really more helpful but spec compliance
// errorHandler.fatalError(new SAXParseException(e.getMessage(),NULL_LOCATOR,e));
// bug 6449684, spec 4.3.4
throw new WebServiceException(e.getMessage(),e);
}
}
public void writePayloadTo(XMLStreamWriter sw) throws XMLStreamException {
try {
// MtomCodec sets its own AttachmentMarshaller
AttachmentMarshaller am = (sw instanceof MtomStreamWriter)
? ((MtomStreamWriter)sw).getAttachmentMarshaller()
: new AttachmentMarshallerImpl(attachmentSet);
// Get output stream and use JAXB UTF-8 writer
OutputStream os = XMLStreamWriterUtil.getOutputStream(sw);
if (os != null) {
bridge.marshal(jaxbObject, os, sw.getNamespaceContext(),am);
} else {
bridge.marshal(jaxbObject,sw,am);
}
//cleanup() is not needed since JAXB doesn't keep ref to AttachmentMarshaller
//am.cleanup();
} catch (JAXBException e) {
// bug 6449684, spec 4.3.4
throw new WebServiceException(e);
}
}
public Message copy() {
return new JAXBMessage(this);
}
}
