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*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
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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 https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
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*
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* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
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package com.sun.xml.ws.message.source;
import com.sun.xml.ws.message.RootElementSniffer;
import com.sun.xml.ws.streaming.SourceReaderFactory;
import com.sun.xml.ws.util.xml.XmlUtil;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamSource;
import javax.xml.ws.WebServiceException;
/**
*
* @author Vivek Pandey
*/
final class SourceUtils {
int srcType;
private final int domSource = 1;
private final int streamSource = 2;
private final int saxSource=4;
public SourceUtils(Source src) {
if(src instanceof StreamSource){
srcType = streamSource;
}else if(src instanceof DOMSource){
srcType = domSource;
}else if(src instanceof SAXSource){
srcType = saxSource;
}
}
public boolean isDOMSource(){
return (srcType&domSource) == domSource;
}
public boolean isStreamSource(){
return (srcType&streamSource) == streamSource;
}
public boolean isSaxSource(){
return (srcType&saxSource) == saxSource;
}
/**
* This would peek into the Source (DOMSource and SAXSource) for the localName and NamespaceURI
* of the top-level element.
* @param src
* @return QName of the payload
*/
public QName sniff(Source src) {
return sniff(src, new RootElementSniffer());
}
public QName sniff(Source src, RootElementSniffer sniffer){
String localName = null;
String namespaceUri = null;
if(isDOMSource()){
DOMSource domSource = (DOMSource)src;
Node n = domSource.getNode();
if(n.getNodeType()== Node.DOCUMENT_NODE) {
n = ((Document)n).getDocumentElement();
}
localName = n.getLocalName();
namespaceUri = n.getNamespaceURI();
}else if(isSaxSource()){
SAXSource saxSrc = (SAXSource)src;
SAXResult saxResult = new SAXResult(sniffer);
try {
Transformer tr = XmlUtil.newTransformer();
tr.transform(saxSrc, saxResult);
} catch (TransformerConfigurationException e) {
throw new WebServiceException(e);
} catch (TransformerException e) {
// if it's due to 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.
localName = sniffer.getLocalName();
namespaceUri = sniffer.getNsUri();
}
}
return new QName(namespaceUri, localName);
}
public static void serializeSource(Source src, XMLStreamWriter writer) throws XMLStreamException {
XMLStreamReader reader = SourceReaderFactory.createSourceReader(src, true);
int state;
do {
state = reader.next();
switch (state) {
case XMLStreamConstants.START_ELEMENT:
/*
* TODO: Is this necessary, shouldn't zephyr return "" instead of
* null for getNamespaceURI() and getPrefix()?
*/
String uri = reader.getNamespaceURI();
String prefix = reader.getPrefix();
String localName = reader.getLocalName();
if (prefix == null) {
if (uri == null) {
writer.writeStartElement(localName);
} else {
writer.writeStartElement(uri, localName);
}
} else {
assert uri != null;
if(prefix.length() > 0){
/**
* Before we write the
*/
String writerURI = null;
if (writer.getNamespaceContext() != null)
writerURI = writer.getNamespaceContext().getNamespaceURI(prefix);
String writerPrefix = writer.getPrefix(uri);
if(declarePrefix(prefix, uri, writerPrefix, writerURI)){
writer.writeStartElement(prefix, localName, uri);
writer.setPrefix(prefix, uri != null ? uri : "");
writer.writeNamespace(prefix, uri);
}else{
writer.writeStartElement(prefix, localName, uri);
}
}else{
writer.writeStartElement(prefix, localName, uri);
}
}
int n = reader.getNamespaceCount();
// Write namespace declarations
for (int i = 0; i < n; i++) {
String nsPrefix = reader.getNamespacePrefix(i);
if (nsPrefix == null) nsPrefix = "";
// StAX returns null for default ns
String writerURI = null;
if (writer.getNamespaceContext() != null)
writerURI = writer.getNamespaceContext().getNamespaceURI(nsPrefix);
// Zephyr: Why is this returning null?
// Compare nsPrefix with prefix because of [1] (above)
String readerURI = reader.getNamespaceURI(i);
/**
* write the namespace in 3 conditions
* - when the namespace URI is not bound to the prefix in writer(writerURI == 0)
* - when the readerPrefix and writerPrefix are ""
* - when readerPrefix and writerPrefix are not equal and the URI bound to them
* are different
*/
if (writerURI == null || ((nsPrefix.length() == 0) || (prefix.length() == 0)) ||
(!nsPrefix.equals(prefix) && !writerURI.equals(readerURI))) {
writer.setPrefix(nsPrefix, readerURI != null ? readerURI : "");
writer.writeNamespace(nsPrefix, readerURI != null ? readerURI : "");
}
}
// Write attributes
n = reader.getAttributeCount();
for (int i = 0; i < n; i++) {
String attrPrefix = reader.getAttributePrefix(i);
String attrURI = reader.getAttributeNamespace(i);
writer.writeAttribute(attrPrefix != null ? attrPrefix : "",
attrURI != null ? attrURI : "",
reader.getAttributeLocalName(i),
reader.getAttributeValue(i));
// if the attribute prefix is undeclared in current writer scope then declare it
setUndeclaredPrefix(attrPrefix, attrURI, writer);
}
break;
case XMLStreamConstants.END_ELEMENT:
writer.writeEndElement();
break;
case XMLStreamConstants.CHARACTERS:
writer.writeCharacters(reader.getText());
}
} while (state != XMLStreamConstants.END_DOCUMENT);
reader.close();
}
/**
* sets undeclared prefixes on the writer
* @param prefix
* @param writer
* @throws XMLStreamException
*/
private static void setUndeclaredPrefix(String prefix, String readerURI, XMLStreamWriter writer) throws XMLStreamException {
String writerURI = null;
if (writer.getNamespaceContext() != null)
writerURI = writer.getNamespaceContext().getNamespaceURI(prefix);
if (writerURI == null) {
writer.setPrefix(prefix, readerURI != null ? readerURI : "");
writer.writeNamespace(prefix, readerURI != null ? readerURI : "");
}
}
/**
* check if we need to declare
* @param rPrefix
* @param rUri
* @param wPrefix
* @param wUri
*/
private static boolean declarePrefix(String rPrefix, String rUri, String wPrefix, String wUri){
if (wUri == null ||((wPrefix != null) && !rPrefix.equals(wPrefix))||
(rUri != null && !wUri.equals(rUri)))
return true;
return false;
}
}
