package com.sunyard.util;

import java.util.LinkedHashMap;
import java.util.List;

public class DnUtil {


    public static LinkedHashMap<String, String> dnToMap(String dn) {
        LinkedHashMap<String, String> map = new LinkedHashMap<String, String>();
        String[] kvs = dn.split(",");
        for (String kv : kvs) {
            String[] ps = kv.split("=");
            map.put(ps[0].trim(), ps[1].trim());
        }
        return map;
    }

    public static String verifyDn(String dn) {
        if ( "true".equals(System.getProperty("com.sunyard.dnsort", "true"))) {
            if (dn.startsWith("C=") || dn.startsWith("c=")) {
                return dn;
            }
            // 反转顺序
            String[] kvs = dn.split(",");
            StringBuilder sb = new StringBuilder();

            for (String kv : kvs) {

                if (sb.length() > 0) {
                    sb.insert(0, ",");
                }
                sb.insert(0, kv);

//            if ( sb.length() > 0 ) {
//                sb.append(",");
//            }
//            sb.append( key + "=" + map.get( key ) );
            }

            return sb.toString();
        }
        else return dn;
    }

}