package com.hotel.utils;

import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;


public class XmlHelper {

	private static final XmlHelper instance = new XmlHelper();

	private XmlHelper() {
	}

	public static XmlHelper getInstance() {
		return instance;
	}

	/**
	 * 删除元素
	 * 
	 * @param root
	 * @param name
	 * @return
	 */
	public boolean removeElement(Element root, String name) {
		Element element = XmlHelper.getInstance().getSingleElementByName(root,
				name);
		if (element != null) {
			return root.remove(element);
		}
		return false;
	}

	public boolean isLegalNamespaceElement(Element element) {
		if (element == null)
			return false;
		String prex = element.getNamespacePrefix();
		if (prex == null)
			return false;
		prex = prex.trim();
		return prex.equals("") || prex.equals("wx");
	}

	@SuppressWarnings("unchecked")
	public List<Element> getElementsByName(Element parent, String nodename) {
		if (parent == null || nodename == null || nodename.trim().equals(""))
			return null;
		else
			return parent.selectNodes((new StringBuilder()).append(nodename)
					.toString());
	}

	@SuppressWarnings("unchecked")
	public Element getSingleElementByName(Element parent, String nodename)
			throws IllegalArgumentException {
		if (parent == null || nodename == null || nodename.trim().equals(""))
			return null;
		List lstChildren = parent.selectNodes((new StringBuilder()).append(
				nodename).toString());
		if (lstChildren == null || lstChildren.size() == 0)
			return null;
		Element ele = (Element) lstChildren.get(0);
		if (ele == null)
			return null;
		if (!isLegalNamespaceElement(ele))
			throw new IllegalArgumentException((new StringBuilder()).append(
					"namespace：").append(ele.getNamespacePrefix()).append(
					"不合法，无法加载其配置").toString());
		else{
		}
			return ele;
	}

	
	
	public String getContentValueHs(Element element,String key) {
		if (element == null)
			return null;
		try {
				return StringUtils.trimToEmpty(element.attributeValue(key));

		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
	public static void main(String[] args) {
	    String path = System.getProperty("user.dir") + "/time.xml";
        String xmlStr = XMLDocument.getXmlFromFile(path);
        System.out.println(xmlStr);
	    Document doc = null;
        try{
            doc = DocumentHelper.parseText(xmlStr);// 将xml字符串转化为dom4j对象
            Element root = doc.getRootElement();// 最大的Asset
            Element timeElement =XmlHelper.getInstance().getSingleElementByName(root, "time");
            String value = "";
            Element subElement =XmlHelper.getInstance().getSingleElementByName(timeElement, "year");//
            String year= subElement.getText();
            subElement =XmlHelper.getInstance().getSingleElementByName(timeElement, "month");//
            String month= subElement.getText();
            subElement =XmlHelper.getInstance().getSingleElementByName(timeElement, "day");//
            String day= subElement.getText();
            subElement =XmlHelper.getInstance().getSingleElementByName(timeElement, "hour");//
            String hour= subElement.getText();
            subElement =XmlHelper.getInstance().getSingleElementByName(timeElement, "minite");//
            String minite= subElement.getText();
            subElement =XmlHelper.getInstance().getSingleElementByName(timeElement, "second");//
            String second= subElement.getText();
            value=year+"-"+month+"-"+day+" "+hour+":"+minite+":"+second;
            String[] times = value.split(" ");
            System.out.println(value);
            System.out.println(times[0]);
            System.out.println(times[1]);
            
            
        }catch(Exception e){
            e.printStackTrace();
        }
    }
}