org.apache.cxf.staxutils.OverlayW3CDOMStreamWriter 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.XMLStreamException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.apache.cxf.common.util.StringUtils;
/**
* Special StreamWriter that will "overlay" any write events onto the DOM.
* If the startElement ends up writing an element that already exists at that
* location, it will just walk into it instead of creating a new element
*/
public class OverlayW3CDOMStreamWriter extends W3CDOMStreamWriter {
public OverlayW3CDOMStreamWriter(Document document) {
super(document);
}
public OverlayW3CDOMStreamWriter(Element e) {
super(e);
}
public void writeStartElement(String local) throws XMLStreamException {
Element nd = getCurrentNode();
Node nd2 = null;
if (nd == null) {
nd2 = getDocument().getDocumentElement();
} else {
nd2 = nd.getFirstChild();
}
while (nd2 != null) {
if (nd2.getNodeType() == Node.ELEMENT_NODE
&& local.equals(nd2.getLocalName())
&& StringUtils.isEmpty(nd2.getNamespaceURI())) {
setChild((Element)nd2, false);
return;
}
nd2 = nd2.getNextSibling();
}
super.writeStartElement(local);
}
public void writeStartElement(String namespace, String local) throws XMLStreamException {
Element nd = getCurrentNode();
Node nd2 = null;
if (nd == null) {
nd2 = getDocument().getDocumentElement();
} else {
nd2 = nd.getFirstChild();
}
while (nd2 != null) {
if (nd2.getNodeType() == Node.ELEMENT_NODE
&& local.equals(nd2.getLocalName())
&& namespace.equals(nd2.getNamespaceURI())) {
setChild((Element)nd2, false);
return;
}
nd2 = nd2.getNextSibling();
}
super.writeStartElement(namespace, local);
}
public void writeStartElement(String prefix, String local, String namespace) throws XMLStreamException {
if (prefix == null || prefix.equals("")) {
writeStartElement(namespace, local);
} else {
Element nd = getCurrentNode();
Node nd2 = null;
if (nd == null) {
nd2 = getDocument().getDocumentElement();
} else {
nd2 = nd.getFirstChild();
}
while (nd2 != null) {
if (nd2.getNodeType() == Node.ELEMENT_NODE
&& local.equals(nd2.getLocalName())
&& namespace.equals(nd2.getNamespaceURI())) {
setChild((Element)nd2, false);
return;
}
nd2 = nd2.getNextSibling();
}
super.writeStartElement(prefix, local, namespace);
}
}
}