/*
* Copyright 2005-2010 the original author or authors.
*
* Licensed 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.springframework.ws.soap.stroap;
import java.util.List;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.events.XMLEvent;
import org.springframework.util.Assert;
import org.springframework.xml.stream.AbstractXMLEventWriter;
/**
* @author Arjen Poutsma
*/
class CachingXMLEventWriter extends AbstractXMLEventWriter {
private int elementDepth = 0;
boolean startElementSeen = false;
private final List<XMLEvent> events;
CachingXMLEventWriter(List<XMLEvent> events) {
Assert.notNull(events, "'events' must not be null");
this.events = events;
}
public void add(XMLEvent event) throws XMLStreamException {
if (event.isStartElement()) {
startElementSeen = true;
elementDepth++;
}
else if (event.isEndElement()) {
elementDepth--;
}
else if (event.isStartDocument() || event.isEndDocument()) {
return;
}
if (elementDepth >= 0 && startElementSeen) {
events.add(event);
}
}
}