📄 node.java
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/**
* @author 沈东良 <a href="mailto:shendl_s@hotmail.com">shendl_s@hotmail.com</a>
* 2007-1-19 下午03:55:00
*/
package net.sf.oxmled.model;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang.builder.EqualsBuilder;
/**
* @author 沈东良 <a href="mailto:shendl_s@hotmail.com">shendl_s@hotmail.com</a>
* 2007-1-19 下午03:55:00 节点模型，每一个节点的数据集合
* OXmlEd的任何节点。与具体的XML操作组件无关，是轻量级的。
*
*/
public class Node implements INode {
/**
* 文档Document的编码
*/
private String encoding = "utf-8";
/*
* 默认元素不是根！
*/
private boolean root = false;
/**
* 节点的名称，是QName，如<map></map>这个节点。它的name就是map
*/
private String name = null;
/**
* 节点元素的内容
*/
private String text = "";
/**
* 属性集合 Hashtable<String String>
*/
private Map<String, String> attributes = new Hashtable<String, String>();
/**
* 儿子元素集合
*/
private List<INode> childNodes = new ArrayList<INode>();
/**
* 父节点
*/
private INode parentNode = null;
/**
* 返回文档
*/
/**
* 得到这个转化成的DOM4j 的Document。 public Document getDocument(){ //public static
* Document createDocument(Element rootElement) /** 需要得到根元素， 已经笛归调用了
*
* Document
* document=DocumentHelper.createDocument(this.convertToAssembledRootElement());
* /** 编码格式
*
* document.setXMLEncoding(this.getEncoding()); // return document; }
*
*/
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#clone(net.sf.oxmled.model.INode)
*/
public void clone(INode source) {
this.setName(source.getName());
this.setText(source.getText());
this.setRoot(source.isRoot());
this.setEncoding(source.getEncoding());
this.setChildNodes(source.getChildNodes());
this.setAttributes(source.getAttributes());
this.setParentNode(source.getParentNode());
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#clone()
*/
public INode clone(){
INode result=new Node();
result.setName(this.getName());
result.setText(this.getText());
result.setRoot(this.isRoot());
result.setEncoding(this.getEncoding());
result.setChildNodes(this.getChildNodes());
result.setAttributes(this.getAttributes());
result.setParentNode(this.getParentNode());
return result;
}
/**
* 转换Node节点为 Dom4j的Element
*
* public Element convertToElement(){ //节点的名字,不可能为空！ //
* if(this.getName()==null){ // throw new
* PropertiesIsNullException("节点的名字不能为空！");
* // }else{ Element element=new DefaultElement(this.getName()); // }
* element.addText(this.getText()); // Map attributes=; /** 读取所有属性
*
*
*
* Iterator itKey= this.getAttributes().keySet().iterator(); //Iterator
* itValue=this.getAttributes().values().iterator(); while(itKey.hasNext()){
* String key=(String)itKey.next(); String
* value=this.getAttributes().get(key); element.addAttribute(key, value);
*
* }
*
*
* return element; }
* }
*/
/**
* 未完成 把整个树，全部转换成element，并且链接好
*
* @return public Element convertToAssembledRootElement(){ //节点的名字,不可能为空！ //
* if(this.getName()==null){ // throw new
* PropertiesIsNullException("节点的名字不能为空！"); // }else{ Element
* rootElement=this.convertToElement();
*
* /** PUBLIC Element convertLoopElement
*
*
* this.loopElement(rootElement, this);
*
* return rootElement; }
*/
/**
*
* @param parentElement
* @param parentNode
* @return public Element loopElement(Element parentElement,Node
* parentNode){ /** 对父亲节点的儿子节点，加到父亲元素上
*
*
*
* Iterator it=parentNode.getChildNodes().iterator(); while(it.hasNext()){
* Node tmpChildNode=(Node)it.next(); Element
* tmpChildElement=tmpChildNode.convertToElement();
* parentElement.add(tmpChildElement); /** 递归，加到用户父亲元素上。
*
* this.loopElement(tmpChildElement, tmpChildNode); }
*
*
* return parentElement; }
*/
/**
* 根节点可以没有名字
*
* @return
*
* public static Node getProcessDefinition(){ Node processDefinition=new
* Node("process-definition");
* processDefinition.getAttributes().put("xmlns", "");
* processDefinition.setRoot(true); return processDefinition; } /**
*
* @param name
* @return
*
* public static Node getProcessDefinition(String name){ Node
* processDefinition=Node.getProcessDefinition();
* processDefinition.getAttributes().put("name", name);
* processDefinition.setRoot(true); return processDefinition; }
*
*
* /**
*
* @param name
* jpdl的任何节点，都必须要有名字
* @return
*
* public static Node getStartState(String name){ Node startState=new
* Node("start-state"); startState.getAttributes().put("name", name); return
* startState; }
*/
/**
* 必须要提供name，才能够使用，否则缺少name，则无法表示一个xml的元素。
*/
public Node() {
super();
}
/**
*
* @param name
*/
public Node(String name) {
this.setName(name);
}
/**
*
* @param name
* @param text
*/
public Node(String name, String text) {
this.setName(name);
this.setText(text);
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getName()
*/
public String getName() {
return name;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#setName(java.lang.String)
*/
public void setName(String name) {
this.name = name;
// this.fireStateChanged();
}
/**
* @param args
*/
public static void main(String[] args) {
/*
*
*/
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getAttributes()
*/
public Map<String, String> getAttributes() {
return attributes;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#setAttributes(java.util.Map)
*/
public void setAttributes(Map<String, String> attributes) {
this.attributes = attributes;
// this.fireStateChanged();
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getChildNodes()
*/
public List<INode> getChildNodes() {
return childNodes;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#setChildNodes(java.util.List)
*/
public void setChildNodes(List<INode> childNodes) {
this.childNodes = childNodes;
// this.fireStateChanged();
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getParentNode()
*/
public INode getParentNode() {
return parentNode;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#setParentNode(net.sf.oxmled.model.INode)
*/
public void setParentNode(INode parentNode) {
this.parentNode = parentNode;
// this.fireStateChanged();
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getText()
*/
public String getText() {
return text;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#setText(java.lang.String)
*/
public void setText(String text) {
this.text = text;
// this.fireStateChanged();
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#isRoot()
*/
public boolean isRoot() {
return root;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#setRoot(boolean)
*/
public void setRoot(boolean root) {
this.root = root;
// this.fireStateChanged();
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getEncoding()
*/
public String getEncoding() {
return encoding;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#setEncoding(java.lang.String)
*/
public void setEncoding(String encoding) {
this.encoding = encoding;
// this.fireStateChanged();
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#toString()
*/
public String toString() {
String result="";
result=result+"<"+this.getName();
Iterator itAttributes= this.getAttributes().entrySet().iterator();
while(itAttributes.hasNext()){
Map.Entry<String,String> tmp= (Map.Entry<String,String>)itAttributes.next();
result=result+" "+tmp.getKey()+"=\""+tmp.getValue()+"\"";
}
result=result+"> \n"+this.getText()+"\n";
/**
* 子节点，递归
*
*/
Iterator itChildNodes =this.getChildNodes().iterator();
while(itChildNodes.hasNext()){
INode tmp=(INode) itChildNodes.next();
result=result+tmp.toString();
}
result=result+"</"+this.getName() + ">\n";
return result;
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getChild(int)
*/
public INode getChild(int index){
return this.getChildNodes().get(index);
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getChildCount()
*/
public int getChildCount(){
return this.getChildNodes().size();
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getIndexOfChild(net.sf.oxmled.model.INode)
*/
public int getIndexOfChild(INode child){
return this.getChildNodes().indexOf(child);
}
/* (non-Javadoc)
* @see net.sf.oxmled.model.INode#getRoot()
*/
public INode getRoot() {
/*
*
*/
if (this.isRoot()) {
return this;
}
INode parent = this.getParentNode();
while (!parent.isRoot()) {
if (this.getParentNode() != null) {
parent = this.getParentNode();
} else {
return null;
}
}
return parent;
}
@Override
public List<INode> descendant() {
/*
*所有后代，递归
*
*/
List<INode> descendant=new ArrayList<INode>();
this.loopChildNodes(this,descendant);
return descendant;
}
/**
*
* @param parentNode 节点，需要找出所有的儿子节点
* @param target 目标List
*/
private void loopChildNodes(INode parentNode,List<INode> target){
target.addAll(parentNode.getChildNodes());
Iterator<INode> it=parentNode.getChildNodes().iterator();
while(it.hasNext()){
this.loopChildNodes(it.next(), target);
}
}
@Override
public List<INode> getNodes(INode node) {
/*
*
*/
List<INode> result=new ArrayList<INode>();
Iterator<INode> it=this.descendant().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(tmp.equals(node)){
result.add(tmp);
}
}
return result;
}
@Override
public List<INode> getNodes(String name) {
/*
*
*/
List<INode> result=new ArrayList<INode>();
Iterator<INode> it=this.descendant().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(name.equals(tmp.getName())){
result.add(tmp);
}
}
return result;
}
@Override
public boolean childContains(INode node) {
/*
*
*/
Iterator<INode> it=this.getChildNodes().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(tmp.equals(node)){
return true;
}
}
return false;
}
@Override
public boolean childContains(String name) {
/*
*
*/
Iterator<INode> it=this.getChildNodes().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(name.equals(tmp.getName())){
return true;
}
}
return false;
}
@Override
public List<INode> getChildNodes(INode node) {
/*
*
*/
List<INode> result=new ArrayList<INode>();
Iterator<INode> it= this.getChildNodes().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(tmp.equals(node)){
result.add(tmp);
}
}
return result;
}
@Override
public List<INode> getChildNodes(String name) {
/*
*
*/
List<INode> result=new ArrayList<INode>();
Iterator<INode> it= this.getChildNodes().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(name.equals(tmp.getName())){
result.add(tmp);
}
}
return result;
}
@Override
public INode getSingleChildNode(INode node) {
/*
*
*/
Iterator<INode> it= this.getChildNodes().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(tmp.equals(node)){
return tmp;
}
}
return null;
}
@Override
public INode getSingleChildNode(String name) {
/*
*
*/
Iterator<INode> it= this.getChildNodes().iterator();
while(it.hasNext()){
INode tmp=it.next();
if(name.equals(tmp.getName())){
return tmp;
}
}
return null;
}
@Override
public boolean equals(Object obj){
/**
* 比较是否相等包括其儿子，不比较没有意义的东西
*
*/
if(obj==null){
return false;
}
if ((obj instanceof Node) == false) {
return false;
}
if(this==obj){
return true;
}
Node rhs=(Node)obj;
if(!this.getName().equals(rhs.getName()) || !this.getText().equals(rhs.getText()) || !this.getAttributes().entrySet().containsAll(rhs.getAttributes().entrySet()) || !rhs.getAttributes().entrySet().containsAll(this.getAttributes().entrySet()) || !this.getEncoding().equals(rhs.getEncoding()) || this.isRoot()!=rhs.isRoot()){
return false;
}
if(this.getParentNode() ==null && rhs.getParentNode()!=null){
return false;
}
if(this.getParentNode() !=null && rhs.getParentNode()==null){
return false;
}
if(this.getParentNode() !=null && rhs.getParentNode()!=null){
if(!this.getParentNode().equals(rhs.getParentNode())){
return false;
}
}
Iterator<INode> it=rhs.getChildNodes().iterator();
while(it.hasNext()){
INode tmp=it.next();
if((tmp instanceof Node)== false){
return false;
}
Node tmpChild=(Node)tmp;
//递归
if(!this.childContains(tmpChild)){
return false;
}
}
return true;
// return new EqualsBuilder().appendSuper(super.equals(obj)).append(this.getAttributes(), rhs.getAttributes()).append(this.getChildNodes(), rhs.getChildNodes()).append(this.getEncoding(), rhs.getEncoding()).append(this.isRoot(), rhs.isRoot()).append(this.getName(), rhs.getName()).append(this.getText(), rhs.getText()).append(this.getParentNode(), rhs.getParentNode()).isEquals();
}
@Override
public int hashCode(){
/*
* 相等的对象hashCode应该相同。 由于Map和List的hashcode可能不同，所以未引入
return new org.apache.commons.lang.builder.HashCodeBuilder(1,999).
append(this.getAttributes()).append(this.getChildNodes()).
append(this.getEncoding()).append(this.getParentNode()).append(this.getName()).append(this.getText()).append(this.isRoot()).toHashCode();
*/
return new org.apache.commons.lang.builder.HashCodeBuilder(1,999).append(this.getEncoding()).append(this.getParentNode()).append(this.getName()).append(this.getText()).append(this.isRoot()).toHashCode();
}
}
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