package com.smtscript.lib;

import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import com.smtscript.lib.xml.JSXmlDocument;
import com.smtscript.lib.xml.JSXmlModify;

public class JSStaticXml extends JSStaticAbstract 
{
	public JSXmlDocument open(String fileName) throws Exception
	{
		SAXReader reader=new SAXReader();
		Document doc=reader.read(_parentScope.__findExistFile__(fileName, true).open());
		
		return new JSXmlDocument(_parentScope, doc);
	}
	
	public JSXmlDocument load(String xmlString) throws Exception
	{
		SAXReader reader=new SAXReader();
		Document doc=reader.read(xmlString);
		
		return new JSXmlDocument(_parentScope, doc);
	}
	
	public String getAttrValue(Element elem, String attrName, String defVal)
	{
		Attribute attr = elem.attribute(attrName);
		if(attr == null)
			return defVal;
		
		return attr.getText();
	}
	
	public String getAttrValue(Element elem, String attrName) throws Exception
	{
		String value = getAttrValue(elem, attrName, null);
		if(value == null)
			throw new Exception("can't find attr name : " + attrName);
		
		return value;
	}
	
	public JSXmlModify openModify(String xmlFile) throws Exception
	{
		return new JSXmlModify(xmlFile, true, this);
	}
	
	public JSXmlModify loadModifyString(String xmlString) throws Exception
	{
		return new JSXmlModify(xmlString, false, this);
	}
}