package com.cloud.common.utils;
import net.sourceforge.pinyin4j.PinyinHelper;

import java.io.UnsupportedEncodingException;
/**
 *
 * @author bsk
 * @date
 *
 */
public class UpperByName {
    private final static int[] LI_SEC_POS_VALUE = { 1601, 1637, 1833, 2078, 2274,
            2302, 2433, 2594, 2787, 3106, 3212, 3472, 3635, 3722, 3730, 3858,
            4027, 4086, 4390, 4558, 4684, 4925, 5249, 5590 };
    private final static String[] LC_FIRST_LETTER = { "a", "b", "c", "d", "e",
            "f", "g", "h", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",
            "t", "w", "x", "y", "z" };

    /**
     * 取得给定汉字串的首字母串,即声母串
     * @param str 给定汉字串
     * @return 声母串
     */
    public String getAllFirstLetter(String str) {
        if (str == null || str.trim().length() == 0) {
            return "";
        }

        String tempStr = "";
        for (int i = 0; i < str.length(); i++) {
            tempStr = tempStr + this.getFirstLetter(str.substring(i, i + 1));
        }

        return tempStr;
    }

    /**
     * 取得给定汉字的首字母,即声母
     * @param chinese 给定的汉字
     * @return 给定汉字的声母
     */
    public String getFirstLetter(String chinese) {
        if (chinese == null || chinese.trim().length() == 0) {
            return "";
        }
        chinese = this.conversionStr(chinese, "GB2312", "ISO8859-1");
        int liSecPosCodeBefore = 5590;
        int liSecPosCodeAfter = 1600;
        int liSecPosCodeLength =23;

        // 判断是不是汉字
        if (chinese.length() > 1)
        {
            // 汉字区码
            int liSectorCode = (int) chinese.charAt(0);
            // 汉字位码
            int liPositionCode = (int) chinese.charAt(1);
            liSectorCode = liSectorCode - 160;
            liPositionCode = liPositionCode - 160;
            // 汉字区位码
            int liSecPosCode = liSectorCode * 100 + liPositionCode;
            if (liSecPosCode > liSecPosCodeAfter && liSecPosCode < liSecPosCodeBefore) {
                for (int i = 0; i < liSecPosCodeLength; i++) {
                    if (liSecPosCode >= LI_SEC_POS_VALUE[i]
                            && liSecPosCode < LI_SEC_POS_VALUE[i + 1]) {
                        chinese = LC_FIRST_LETTER[i];
                        break;
                    }
                }
            } else
            {
                // 非汉字字符,如图形符号或ASCII码
                chinese = this.conversionStr(chinese, "ISO8859-1", "GB2312");
                chinese = chinese.substring(0, 1);
            }
        }

        return chinese;
    }

    /**
     * 字符串编码转换
     * @param str 要转换编码的字符串
     * @param charsetName 原来的编码
     * @param toCharsetName 转换后的编码
     * @return 经过编码转换后的字符串
     */
    private String conversionStr(String str, String charsetName,String toCharsetName) {
        try {
            str = new String(str.getBytes(charsetName), toCharsetName);
        } catch (UnsupportedEncodingException ex) {
            System.out.println("字符串编码转换异常：" + ex.getMessage());
        }
        return str;
    }

    /**
     * 名字提取大写字母简写
     * @param name
     * @return
     */
    public String toUpperByName(String name){
        String convert = "";
        int len = name.length();
        for (int j = 0; j < len; j++) {
            char word = name.charAt(j);
            String[] pinyinArray = PinyinHelper.toHanyuPinyinStringArray(word);
            if (pinyinArray != null) {
                convert += pinyinArray[0].charAt(0);
            } else {
                convert += word;
            }
        }
        return convert.toUpperCase();
    }
//    public String toUpperByName(String name){
//        String str = getAllFirstLetter(name);
//        StringBuffer sb = new StringBuffer();
//
//        if(str!=null){
//            for(int i=0;i<str.length();i++){
//                char c = str.charAt(i);
//                if(Character.isUpperCase(c)){
//                    sb.append(Character.toLowerCase(c));
//                }else if(Character.isLowerCase(c)){
//                    sb.append(Character.toUpperCase(c));
//                }
//            }
//        }return sb.toString();
//    }

    public static void main(String[] args) {
        UpperByName cte = new UpperByName();
        System.out.println("获取拼音首字母："+ cte.toUpperByName("郑怡静"));

    }



}