/**
* 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.xml.security.test.stax.utils;
import org.apache.xml.security.stax.ext.stax.XMLSecEvent;
import org.apache.xml.security.stax.ext.stax.XMLSecEventFactory;
import org.apache.xml.security.stax.ext.stax.XMLSecStartElement;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.events.XMLEvent;
import javax.xml.stream.util.XMLEventAllocator;
import javax.xml.stream.util.XMLEventConsumer;
/**
* <p/>
* An extended XMLEventAllocator to collect namespaces and C14N relevant attributes
*
* @author $Author: giger $
* @version $Revision: 1399606 $ $Date: 2012-10-18 13:17:41 +0100 (Thu, 18 Oct 2012) $
*/
public class XMLSecEventAllocator implements XMLEventAllocator {
private XMLEventAllocator xmlEventAllocator;
private XMLSecStartElement parentXmlSecStartElement;
public XMLSecEventAllocator() throws Exception {
XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance();
if (xmlInputFactory.getClass().getName().equals("com.sun.xml.internal.stream.XMLInputFactoryImpl")) {
xmlEventAllocator = (XMLEventAllocator) Class.forName("com.sun.xml.internal.stream.events.XMLEventAllocatorImpl").newInstance();
} else if (xmlInputFactory.getClass().getName().equals("com.ctc.wstx.stax.WstxInputFactory")) {
xmlEventAllocator = (XMLEventAllocator) Class.forName("com.ctc.wstx.evt.DefaultEventAllocator").getMethod("getDefaultInstance").invoke(null);
} else {
throw new Exception("Unknown XMLEventAllocator");
}
}
@Override
public XMLEventAllocator newInstance() {
try {
return new XMLSecEventAllocator();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
public XMLEvent allocate(XMLStreamReader xmlStreamReader) throws XMLStreamException {
XMLSecEvent xmlSecEvent = XMLSecEventFactory.allocate(xmlStreamReader, parentXmlSecStartElement);
switch (xmlSecEvent.getEventType()) {
case XMLStreamConstants.START_ELEMENT:
parentXmlSecStartElement = (XMLSecStartElement) xmlSecEvent;
break;
case XMLStreamConstants.END_ELEMENT:
if (parentXmlSecStartElement != null) {
parentXmlSecStartElement = parentXmlSecStartElement.getParentXMLSecStartElement();
}
break;
}
return xmlSecEvent;
}
@Override
public void allocate(XMLStreamReader reader, XMLEventConsumer consumer) throws XMLStreamException {
xmlEventAllocator.allocate(reader, consumer);
}
}