com.sun.xml.fastinfoset.stax.events.StAXEventWriter Maven / Gradle / Ivy
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*
* Oracle 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 com.sun.xml.fastinfoset.stax.events;
import java.util.Iterator;
import javax.xml.namespace.QName;
import javax.xml.namespace.NamespaceContext;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.*;
import com.sun.xml.fastinfoset.CommonResourceBundle;
public class StAXEventWriter implements XMLEventWriter {
private XMLStreamWriter _streamWriter ;
/**
*
* @param streamWriter
*/
public StAXEventWriter(XMLStreamWriter streamWriter){
_streamWriter = streamWriter;
}
/**
* Writes any cached events to the underlying output mechanism
* @throws XMLStreamException
*/
public void flush() throws XMLStreamException {
_streamWriter.flush();
}
/**
* Frees any resources associated with this stream
* @throws XMLStreamException
*/
public void close() throws javax.xml.stream.XMLStreamException {
_streamWriter.close();
}
/**
*
* @param eventReader
* @throws XMLStreamException
*/
public void add(XMLEventReader eventReader) throws XMLStreamException {
if(eventReader == null) throw new XMLStreamException(CommonResourceBundle.getInstance().getString("message.nullEventReader"));
while(eventReader.hasNext()){
add(eventReader.nextEvent());
}
}
/**
* Add an event to the output stream
* Adding a START_ELEMENT will open a new namespace scope that
* will be closed when the corresponding END_ELEMENT is written.
*
* @param event
* @throws XMLStreamException
*/
public void add(XMLEvent event) throws XMLStreamException {
int type = event.getEventType();
switch(type){
case XMLEvent.DTD:{
DTD dtd = (DTD)event ;
_streamWriter.writeDTD(dtd.getDocumentTypeDeclaration());
break;
}
case XMLEvent.START_DOCUMENT :{
StartDocument startDocument = (StartDocument)event ;
_streamWriter.writeStartDocument(startDocument.getCharacterEncodingScheme(), startDocument.getVersion());
break;
}
case XMLEvent.START_ELEMENT :{
StartElement startElement = event.asStartElement() ;
QName qname = startElement.getName();
_streamWriter.writeStartElement(qname.getPrefix(), qname.getLocalPart(), qname.getNamespaceURI());
Iterator iterator = startElement.getNamespaces();
while(iterator.hasNext()){
Namespace namespace = (Namespace)iterator.next();
_streamWriter.writeNamespace(namespace.getPrefix(), namespace.getNamespaceURI());
}
Iterator attributes = startElement.getAttributes();
while(attributes.hasNext()){
Attribute attribute = (Attribute)attributes.next();
QName name = attribute.getName();
_streamWriter.writeAttribute(name.getPrefix(), name.getNamespaceURI(),
name.getLocalPart(),attribute.getValue());
}
break;
}
case XMLEvent.NAMESPACE:{
Namespace namespace = (Namespace)event;
_streamWriter.writeNamespace(namespace.getPrefix(), namespace.getNamespaceURI());
break ;
}
case XMLEvent.COMMENT: {
Comment comment = (Comment)event ;
_streamWriter.writeComment(comment.getText());
break;
}
case XMLEvent.PROCESSING_INSTRUCTION:{
ProcessingInstruction processingInstruction = (ProcessingInstruction)event ;
_streamWriter.writeProcessingInstruction(processingInstruction.getTarget(), processingInstruction.getData());
break;
}
case XMLEvent.CHARACTERS:{
Characters characters = event.asCharacters();
//check if the CHARACTERS are CDATA
if(characters.isCData()){
_streamWriter.writeCData(characters.getData());
}
else{
_streamWriter.writeCharacters(characters.getData());
}
break;
}
case XMLEvent.ENTITY_REFERENCE:{
EntityReference entityReference = (EntityReference)event ;
_streamWriter.writeEntityRef(entityReference.getName());
break;
}
case XMLEvent.ATTRIBUTE:{
Attribute attribute = (Attribute)event;
QName qname = attribute.getName();
_streamWriter.writeAttribute(qname.getPrefix(), qname.getNamespaceURI(), qname.getLocalPart(),attribute.getValue());
break;
}
case XMLEvent.CDATA:{
//there is no separate CDATA datatype but CDATA event can be reported
//by using vendor specific CDATA property.
Characters characters = (Characters)event;
if(characters.isCData()){
_streamWriter.writeCData(characters.getData());
}
break;
}
case XMLEvent.END_ELEMENT:{
_streamWriter.writeEndElement();
break;
}
case XMLEvent.END_DOCUMENT:{
_streamWriter.writeEndDocument();
break;
}
default:
throw new XMLStreamException(CommonResourceBundle.getInstance().getString("message.eventTypeNotSupported", new Object[]{Util.getEventTypeString(type)}));
//throw new XMLStreamException("Unknown Event type = " + type);
};
}
/**
* Gets the prefix the uri is bound to
* @param uri the uri to look up
* @throws XMLStreamException
*/
public String getPrefix(String uri) throws XMLStreamException {
return _streamWriter.getPrefix(uri);
}
/**
* Returns the current namespace context.
* @return the current namespace context
*/
public NamespaceContext getNamespaceContext() {
return _streamWriter.getNamespaceContext();
}
/**
* Binds a URI to the default namespace
* This URI is bound
* in the scope of the current START_ELEMENT / END_ELEMENT pair.
* If this method is called before a START_ELEMENT has been written
* the uri is bound in the root scope.
* @param uri the uri to bind to the default namespace
* @throws XMLStreamException
*/
public void setDefaultNamespace(String uri) throws XMLStreamException {
_streamWriter.setDefaultNamespace(uri);
}
/**
* Sets the current namespace context for prefix and uri bindings.
* This context becomes the root namespace context for writing and
* will replace the current root namespace context. Subsequent calls
* to setPrefix and setDefaultNamespace will bind namespaces using
* the context passed to the method as the root context for resolving
* namespaces.
* @param namespaceContext the namespace context to use for this writer
* @throws XMLStreamException
*/
public void setNamespaceContext(NamespaceContext namespaceContext) throws XMLStreamException {
_streamWriter.setNamespaceContext(namespaceContext);
}
/**
* Sets the prefix the uri is bound to. This prefix is bound
* in the scope of the current START_ELEMENT / END_ELEMENT pair.
* If this method is called before a START_ELEMENT has been written
* the prefix is bound in the root scope.
* @param prefix the prefix to bind to the uri
* @param uri the uri to bind to the prefix
* @throws XMLStreamException
*/
public void setPrefix(String prefix, String uri) throws XMLStreamException {
_streamWriter.setPrefix(prefix, uri);
}
}