Method decode

src/main/java/cms/utils/Base64.java:89–124

(byte[] data)

    } 
	    
    public static String decode(byte[] data) { 
        StringBuffer sb = new StringBuffer(); 
        int len = data.length; 
        int i = 0; 
        int b1, b2, b3, b4; 
        while (i < len) { 
            do { 
                b1 = base64DecodeChars[data[i++]]; 
            } while (i < len && b1 == -1); 
            if (b1 == -1) break; 
    
            do { 
                b2 = base64DecodeChars 
                [data[i++]]; 
            } while (i < len && b2 == -1); 
            if (b2 == -1) break; 
            sb.append((char) ((b1 << 2) | ((b2 & 0x30) >>> 4))); 
    
            do { 
                b3 = data[i++]; 
                if (b3 == 61) return sb.toString(); 
                b3 = base64DecodeChars[b3]; 
            } while (i < len && b3 == -1); 
            if (b3 == -1) break; 
            sb.append((char) (((b2 & 0x0f) << 4) | ((b3 & 0x3c) >>> 2))); 
    
            do { 
                b4 = data[i++]; 
                if (b4 == 61) return sb.toString(); 
                b4 = base64DecodeChars[b4]; 
            } while (i < len && b4 == -1); 
            if (b4 == -1) break; 
            sb.append((char) (((b3 & 0x03) << 6) | b4)); 
        } 
        return sb.toString(); 
    }
}