/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.wss4j.stax.test.utils;
import org.w3c.dom.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
public class StAX2DOM {
static final String XML_NS = "http://www.w3.org/2000/xmlns/";
public static Document readDoc(DocumentBuilder documentBuilder, XMLStreamReader xmlStreamReader) throws XMLStreamException {
//skip possible text at the beginning of a document and go directly to the root tag
while (xmlStreamReader.hasNext() && xmlStreamReader.next() != XMLStreamConstants.START_ELEMENT) { //NOPMD
}
Document document = documentBuilder.newDocument();
StAX2DOM.readDocElements(document, document, xmlStreamReader, false, false);
xmlStreamReader.close();
return document;
}
public static void readDocElements(Document doc, Node parent,
XMLStreamReader reader, boolean repairing, boolean recordLoc)
throws XMLStreamException {
int event = reader.getEventType();
while (reader.hasNext()) {
switch (event) {
case XMLStreamConstants.START_ELEMENT:
startElement(doc, parent, reader, repairing, recordLoc);
/*
if (parent instanceof Document) {
return;
}
*/
break;
case XMLStreamConstants.END_DOCUMENT:
return;
case XMLStreamConstants.END_ELEMENT:
return;
case XMLStreamConstants.NAMESPACE:
break;
case XMLStreamConstants.ATTRIBUTE:
break;
case XMLStreamConstants.CHARACTERS:
if (parent != null) {
recordLoc = addLocation(doc,
parent.appendChild(doc.createTextNode(reader.getText())),
reader, recordLoc);
}
break;
case XMLStreamConstants.COMMENT:
if (parent != null) {
parent.appendChild(doc.createComment(reader.getText()));
}
break;
case XMLStreamConstants.CDATA:
recordLoc = addLocation(doc,
parent.appendChild(doc.createCDATASection(reader.getText())),
reader, recordLoc);
break;
case XMLStreamConstants.PROCESSING_INSTRUCTION:
parent.appendChild(doc.createProcessingInstruction(reader.getPITarget(), reader.getPIData()));
break;
case XMLStreamConstants.ENTITY_REFERENCE:
parent.appendChild(doc.createProcessingInstruction(reader.getPITarget(), reader.getPIData()));
break;
default:
break;
}
if (reader.hasNext()) {
event = reader.next();
}
}
}
static boolean addLocation(Document doc, Node node,
XMLStreamReader reader,
boolean recordLoc) {
if (recordLoc) {
Location loc = reader.getLocation();
if (loc != null && (loc.getColumnNumber() != 0 || loc.getLineNumber() != 0)) {
try {
final int charOffset = loc.getCharacterOffset();
final int colNum = loc.getColumnNumber();
final int linNum = loc.getLineNumber();
final String pubId = loc.getPublicId() == null ? doc.getDocumentURI() : loc.getPublicId();
final String sysId = loc.getSystemId() == null ? doc.getDocumentURI() : loc.getSystemId();
Location loc2 = new Location() {
@Override
public int getCharacterOffset() {
return charOffset;
}
@Override
public int getColumnNumber() {
return colNum;
}
@Override
public int getLineNumber() {
return linNum;
}
@Override
public String getPublicId() {
return pubId;
}
@Override
public String getSystemId() {
return sysId;
}
};
node.setUserData("location", loc2, new UserDataHandler() {
@Override
public void handle(short operation, String key, Object data, Node src, Node dst) {
if (operation == NODE_CLONED) {
dst.setUserData(key, data, this);
}
}
});
} catch (Exception ex) {
//possibly not DOM level 3, won't be able to record this then
return false;
}
}
}
return recordLoc;
}
static Element startElement(Document doc,
Node parent,
XMLStreamReader reader,
boolean repairing,
boolean recordLocation)
throws XMLStreamException {
Element e = doc.createElementNS(reader.getNamespaceURI(), reader.getLocalName());
if (reader.getPrefix() != null) {
e.setPrefix(reader.getPrefix());
}
e = (Element) parent.appendChild(e);
recordLocation = addLocation(doc, e, reader, recordLocation);
for (int ns = 0; ns < reader.getNamespaceCount(); ns++) {
String uri = reader.getNamespaceURI(ns);
String prefix = reader.getNamespacePrefix(ns);
declare(e, uri, prefix);
}
for (int att = 0; att < reader.getAttributeCount(); att++) {
String name = reader.getAttributeLocalName(att);
String prefix = reader.getAttributePrefix(att);
if (prefix != null && prefix.length() > 0) {
name = prefix + ":" + name;
}
Attr attr = doc.createAttributeNS(reader.getAttributeNamespace(att), name);
attr.setValue(reader.getAttributeValue(att));
e.setAttributeNode(attr);
}
if (repairing && !isDeclared(e, reader.getNamespaceURI(), reader.getPrefix())) {
declare(e, reader.getNamespaceURI(), reader.getPrefix());
}
reader.next();
readDocElements(doc, e, reader, repairing, recordLocation);
return e;
}
static void declare(Element node, String uri, String prefix) {
String qualname;
if (prefix != null && prefix.length() > 0) {
qualname = "xmlns:" + prefix;
} else {
qualname = "xmlns";
}
Attr attr = node.getOwnerDocument().createAttributeNS(XML_NS, qualname);
attr.setValue(uri);
node.setAttributeNodeNS(attr);
}
static boolean isDeclared(Element e, String namespaceURI, String prefix) {
Attr att;
if (prefix != null && prefix.length() > 0) {
att = e.getAttributeNodeNS(XML_NS, prefix);
} else {
att = e.getAttributeNode("xmlns");
}
if (att != null && att.getNodeValue().equals(namespaceURI)) {
return true;
}
if (e.getParentNode() instanceof Element) {
return isDeclared((Element) e.getParentNode(), namespaceURI, prefix);
}
return false;
}
}