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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
/*
* Copyright (C) 2004, 2005, 2006 Joe Walnes.
* Copyright (C) 2006, 2007, 2009, 2011 XStream Committers.
* All rights reserved.
*
* The software in this package is published under the terms of the BSD
* style license a copy of which has been included with this distribution in
* the LICENSE.txt file.
*
* Created on 07. March 2004 by Joe Walnes
*/
package com.feilong.lib.xstream.io.xml;
import java.util.ArrayList;
import java.util.List;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import com.feilong.lib.xstream.io.naming.NameCoder;
public class DomReader extends AbstractDocumentReader{
private Element currentElement;
private final StringBuffer textBuffer;
private List childElements;
public DomReader(Element rootElement){
this(rootElement, new XmlFriendlyNameCoder());
}
public DomReader(Document document){
this(document.getDocumentElement());
}
/**
* @since 1.4
*/
public DomReader(Element rootElement, NameCoder nameCoder){
super(rootElement, nameCoder);
textBuffer = new StringBuffer();
}
/**
* @since 1.4
*/
public DomReader(Document document, NameCoder nameCoder){
this(document.getDocumentElement(), nameCoder);
}
@Override
public String getNodeName(){
return decodeNode(currentElement.getTagName());
}
@Override
public String getValue(){
NodeList childNodes = currentElement.getChildNodes();
textBuffer.setLength(0);
int length = childNodes.getLength();
for (int i = 0; i < length; i++){
Node childNode = childNodes.item(i);
if (childNode instanceof Text){
Text text = (Text) childNode;
textBuffer.append(text.getData());
}
}
return textBuffer.toString();
}
@Override
public String getAttribute(String name){
Attr attribute = currentElement.getAttributeNode(encodeAttribute(name));
return attribute == null ? null : attribute.getValue();
}
@Override
public String getAttribute(int index){
return ((Attr) currentElement.getAttributes().item(index)).getValue();
}
@Override
public int getAttributeCount(){
return currentElement.getAttributes().getLength();
}
@Override
public String getAttributeName(int index){
return decodeAttribute(((Attr) currentElement.getAttributes().item(index)).getName());
}
@Override
protected Object getParent(){
return currentElement.getParentNode();
}
@Override
protected Object getChild(int index){
return childElements.get(index);
}
@Override
protected int getChildCount(){
return childElements.size();
}
@Override
protected void reassignCurrentElement(Object current){
currentElement = (Element) current;
NodeList childNodes = currentElement.getChildNodes();
childElements = new ArrayList();
for (int i = 0; i < childNodes.getLength(); i++){
Node node = childNodes.item(i);
if (node instanceof Element){
childElements.add(node);
}
}
}
@Override
public String peekNextChild(){
NodeList childNodes = currentElement.getChildNodes();
for (int i = 0; i < childNodes.getLength(); i++){
Node node = childNodes.item(i);
if (node instanceof Element){
return decodeNode(((Element) node).getTagName());
}
}
return null;
}
}