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package com.ajaxjs.cms.controller;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import com.ajaxjs.mvc.Constant;
import com.ajaxjs.mvc.ModelAndView;
import com.ajaxjs.mvc.controller.IController;
import com.ajaxjs.mvc.controller.MvcRequest;
import com.ajaxjs.util.CommonUtil;

@Path("/admin/DataBaseConnection")
public class DataBaseConnectionController implements IController {
	@GET
	public String show(ModelAndView mv, MvcRequest request) {
		mv.put("list", get(request.mappath("/META-INF/context.xml")));
		return Constant.jsp_perfix + "/system/DataBaseConnection";
	}

	public static List> get(String file) {
		try {
			Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(file);
			NodeList resource = document.getElementsByTagName("Resource");

			List> list = new ArrayList<>();
			for (int i = 0; i < resource.getLength(); i++) {
				Node r = resource.item(i);

				NamedNodeMap attrs = r.getAttributes();
				Map map = new HashMap<>();

				for (int j = 0; j < attrs.getLength(); j++) {
					Node attr = attrs.item(j);

					if (CommonUtil.regMatch("name|username|password|driverClassName|url", attr.getNodeName()) != null) {
						map.put(attr.getNodeName(), attr.getNodeValue());
					}
				}

				list.add(map);
			}

			return list;
		} catch (SAXException | IOException | ParserConfigurationException e) {
			e.printStackTrace();
			return null;
		}
	}
}