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org.apache.cxf.staxutils.StaxSource Maven / Gradle / Ivy
/**
* 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.cxf.staxutils;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.sax.SAXSource;
import org.xml.sax.Attributes;
import org.xml.sax.ContentHandler;
import org.xml.sax.DTDHandler;
import org.xml.sax.EntityResolver;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;
import org.xml.sax.ext.LexicalHandler;
import org.xml.sax.helpers.AttributesImpl;
public class StaxSource extends SAXSource implements XMLReader {
private XMLStreamReader streamReader;
private ContentHandler contentHandler;
private LexicalHandler lexicalHandler;
public StaxSource(XMLStreamReader streamReader) {
this.streamReader = streamReader;
setInputSource(new InputSource());
}
public XMLReader getXMLReader() {
return this;
}
public XMLStreamReader getXMLStreamReader() {
return streamReader;
}
protected void parse() throws SAXException {
try {
while (true) {
switch (streamReader.getEventType()) {
// Attributes are handled in START_ELEMENT
case XMLStreamConstants.ATTRIBUTE:
break;
case XMLStreamConstants.CDATA:
{
if (lexicalHandler != null) {
lexicalHandler.startCDATA();
}
int length = streamReader.getTextLength();
int start = streamReader.getTextStart();
char[] chars = streamReader.getTextCharacters();
contentHandler.characters(chars, start, length);
if (lexicalHandler != null) {
lexicalHandler.endCDATA();
}
break;
}
case XMLStreamConstants.CHARACTERS:
{
int length = streamReader.getTextLength();
int start = streamReader.getTextStart();
char[] chars = streamReader.getTextCharacters();
contentHandler.characters(chars, start, length);
break;
}
case XMLStreamConstants.SPACE:
{
int length = streamReader.getTextLength();
int start = streamReader.getTextStart();
char[] chars = streamReader.getTextCharacters();
contentHandler.ignorableWhitespace(chars, start, length);
break;
}
case XMLStreamConstants.COMMENT:
if (lexicalHandler != null) {
int length = streamReader.getTextLength();
int start = streamReader.getTextStart();
char[] chars = streamReader.getTextCharacters();
lexicalHandler.comment(chars, start, length);
}
break;
case XMLStreamConstants.DTD:
break;
case XMLStreamConstants.END_DOCUMENT:
contentHandler.endDocument();
return;
case XMLStreamConstants.END_ELEMENT: {
String uri = streamReader.getNamespaceURI();
String localName = streamReader.getLocalName();
String prefix = streamReader.getPrefix();
String qname = prefix != null && prefix.length() > 0
? prefix + ":" + localName : localName;
contentHandler.endElement(uri, localName, qname);
// namespaces
for (int i = 0; i < streamReader.getNamespaceCount(); i++) {
String nsPrefix = streamReader.getNamespacePrefix(i);
String nsUri = streamReader.getNamespaceURI(i);
if (nsUri == null) {
nsUri = "";
}
contentHandler.endPrefixMapping(nsPrefix);
}
break;
}
case XMLStreamConstants.ENTITY_DECLARATION:
case XMLStreamConstants.ENTITY_REFERENCE:
case XMLStreamConstants.NAMESPACE:
case XMLStreamConstants.NOTATION_DECLARATION:
break;
case XMLStreamConstants.PROCESSING_INSTRUCTION:
break;
case XMLStreamConstants.START_DOCUMENT:
contentHandler.startDocument();
break;
case XMLStreamConstants.START_ELEMENT: {
String uri = streamReader.getNamespaceURI();
String localName = streamReader.getLocalName();
String prefix = streamReader.getPrefix();
String qname = prefix != null && prefix.length() > 0
? prefix + ":" + localName : localName;
// namespaces
for (int i = 0; i < streamReader.getNamespaceCount(); i++) {
String nsPrefix = streamReader.getNamespacePrefix(i);
String nsUri = streamReader.getNamespaceURI(i);
if (nsUri == null) {
nsUri = "";
}
contentHandler.startPrefixMapping(nsPrefix, nsUri);
}
contentHandler.startElement(uri == null ? "" : uri, localName, qname, getAttributes());
break;
}
default:
break;
}
if (!streamReader.hasNext()) {
return;
}
streamReader.next();
}
} catch (XMLStreamException e) {
SAXParseException spe;
if (e.getLocation() != null) {
spe = new SAXParseException(e.getMessage(), null, null,
e.getLocation().getLineNumber(),
e.getLocation().getColumnNumber(), e);
} else {
spe = new SAXParseException(e.getMessage(), null, null, -1, -1, e);
}
spe.initCause(e);
throw spe;
}
}
protected String getQualifiedName() {
String prefix = streamReader.getPrefix();
if (prefix != null && prefix.length() > 0) {
return prefix + ":" + streamReader.getLocalName();
} else {
return streamReader.getLocalName();
}
}
protected Attributes getAttributes() {
AttributesImpl attrs = new AttributesImpl();
for (int i = 0; i < streamReader.getAttributeCount(); i++) {
String uri = streamReader.getAttributeNamespace(i);
String localName = streamReader.getAttributeLocalName(i);
String prefix = streamReader.getAttributePrefix(i);
String qName;
if (prefix != null && prefix.length() > 0) {
qName = prefix + ':' + localName;
} else {
qName = localName;
}
String type = streamReader.getAttributeType(i);
String value = streamReader.getAttributeValue(i);
if (value == null) {
value = "";
}
attrs.addAttribute(uri == null ? "" : uri, localName, qName, type, value);
}
return attrs;
}
public boolean getFeature(String name) throws SAXNotRecognizedException, SAXNotSupportedException {
return false;
}
public void setFeature(String name, boolean value)
throws SAXNotRecognizedException, SAXNotSupportedException {
}
public Object getProperty(String name) throws SAXNotRecognizedException, SAXNotSupportedException {
return null;
}
public void setProperty(String name, Object value)
throws SAXNotRecognizedException, SAXNotSupportedException {
if ("http://xml.org/sax/properties/lexical-handler".equals(name)) {
lexicalHandler = (LexicalHandler) value;
} else {
throw new SAXNotRecognizedException(name);
}
}
public void setEntityResolver(EntityResolver resolver) {
}
public EntityResolver getEntityResolver() {
return null;
}
public void setDTDHandler(DTDHandler handler) {
}
public DTDHandler getDTDHandler() {
return null;
}
public void setContentHandler(ContentHandler handler) {
this.contentHandler = handler;
if (handler instanceof LexicalHandler
&& lexicalHandler == null) {
lexicalHandler = (LexicalHandler)handler;
}
}
public ContentHandler getContentHandler() {
return this.contentHandler;
}
public void setErrorHandler(ErrorHandler handler) {
}
public ErrorHandler getErrorHandler() {
return null;
}
public void parse(InputSource input) throws SAXException {
StaxSource.this.parse();
}
public void parse(String systemId) throws SAXException {
StaxSource.this.parse();
}
}
