/** *

**/

/**

*

sap.ui.define([], function() {

 "use strict";

  var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

  var _utf8_encode = function (string) {

      var utftext = "", c, n;

      string = string.replace(/\r\n/g,"\n");

      for (n = 0; n < string.length; n++) {

          c = string.charCodeAt(n);

          if (c < 128) {

              utftext += String.fromCharCode(c);

          } else if((c > 127) && (c < 2048)) {

              utftext += String.fromCharCode((c >> 6) | 192);
              utftext += String.fromCharCode((c & 63) | 128);

          } else {

              utftext += String.fromCharCode((c >> 12) | 224);
              utftext += String.fromCharCode(((c >> 6) & 63) | 128);
              utftext += String.fromCharCode((c & 63) | 128);

          }

      }

      return utftext;
  };

  return {
    encode: function (input) {
     var output = "", chr1, chr2, chr3, enc1, enc2, enc3, enc4, i = 0;

      input = _utf8_encode(input);

      while (i < input.length) {

          chr1 = input.charCodeAt(i++);
          chr2 = input.charCodeAt(i++);
          chr3 = input.charCodeAt(i++);

          enc1 = chr1 >> 2;
          enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
          enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
          enc4 = chr3 & 63;

          if (isNaN(chr2)) {
              enc3 = enc4 = 64;
          } else if (isNaN(chr3)) {
              enc4 = 64;
          }

          output += _keyStr.charAt(enc1);
          output += _keyStr.charAt(enc2);
          output += _keyStr.charAt(enc3);
          output += _keyStr.charAt(enc4);

      }

      return output;
  }

 };
}

);