/*
  * Copyright (C), 2018-2021
  * Project: starter
  * FileName: JaxbUtil
  * Author:   xxx
  * Date:     2021/7/22 22:26
  */
 package com.fr.plugin.tabledataservice.utils;

 import com.fanruan.api.log.LogKit;

 import javax.xml.bind.JAXBContext;
 import javax.xml.bind.Marshaller;
 import javax.xml.bind.Unmarshaller;
 import java.io.StringReader;
 import java.io.StringWriter;

 /**
  * <Function Description><br>
  * <JaxbUtil>
  *
  * @author xxx
  * @since 1.0.0
  */
 public class JaxbUtil {

     public static String convertToXml(Object obj) {
         return convertToXml(obj, "UTF-8");
     }

     /**
      * JavaBean转换成xml
      *
      * @param obj
      * @param encoding
      * @return
      */
     public static String convertToXml(Object obj, String encoding) {
         String result = null;
         try {
             JAXBContext context = JAXBContext.newInstance(obj.getClass());
             Marshaller marshaller = context.createMarshaller();
             // xml格式
             marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
             // 去掉生成xml的默认报文头
             marshaller.setProperty(Marshaller.JAXB_FRAGMENT, true);
             // 编码
             marshaller.setProperty(Marshaller.JAXB_ENCODING, encoding);
             // 不进行转义字符处理
//             marshaller.setProperty(CharacterEscapeHandler.class.getName(), (CharacterEscapeHandler) (chars, start, length, isAttVal, writer) -> writer.write(chars, start, length));
             StringWriter writer = new StringWriter();
             marshaller.marshal(obj, writer);
             result = writer.toString();
         } catch (Exception ex) {
             LogKit.error(ex.getMessage(), ex);
         }
         return result;
     }

     /**
      * xml转换成JavaBean
      *
      * @param xml
      * @param c
      * @return
      */
     @SuppressWarnings("unchecked")
     public static <T> T converyToJavaBean(String xml, Class<T> c) {
         T t = null;
         try {
             JAXBContext context = JAXBContext.newInstance(c);
             Unmarshaller unmarshaller = context.createUnmarshaller();
             t = (T) unmarshaller.unmarshal(new StringReader(xml));
         } catch (Exception ex) {
             LogKit.error(ex.getMessage(), ex);
         }
         return t;
     }

 }