base class for Azure cloud table

BaseCloudTableModel.cs

using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.Table;
using System;

namespace Models
{
    public class BaseCloudTableModel
    {
        protected CloudTableClient cloudTableClient;

        public BaseCloudTableModel()
        {
            CloudStorageAccount cloudAccount = CloudStorageAccount.DevelopmentStorageAccount;
            CloudStorageAccount.TryParse(
                System.Configuration.ConfigurationManager.AppSettings["blobStorage"],
                out cloudAccount);
            this.cloudTableClient = cloudAccount.CreateCloudTableClient();
        }

        private void HandleStorageException(Exception ex)
        {
            StorageException excep = ex as StorageException;
            if (excep != null)
            {
                var extendedInformation = excep.RequestInformation.ExtendedErrorInformation;
                var errorCode = extendedInformation.ErrorCode;
            }
        }
        
        private string GetUniqueId(string input)
        {
            string result = string.Empty;
            char[] chars = new char[]
                                {
                                'a','b','c','d','e','f','g','h',
                                'i','j','k','l','m','n','o','p',
                                'q','r','s','t','u','v','w','x',
                                'y','z','0','1','2','3','4','5',
                                '6','7','8','9','A','B','C','D',
                                'E','F','G','H','I','J','K','L',
                                'M','N','O','P','Q','R','S','T',
                                'U','V','W','X','Y','Z'
                                };
            byte[] bytes = Encoding.UTF8.GetBytes(input);
            MD5 md5 = MD5.Create();
            byte[] md5Bytes = md5.ComputeHash(bytes);
            string strMd5Result = BitConverter.ToString(md5Bytes).Replace("-", string.Empty);

            for (int i = 0; i < 1; i++)
            {
                int intMd5SubStr = Convert.ToInt32(strMd5Result.Substring(i * 8, 8), 16);
                Console.WriteLine(intMd5SubStr);

                for (int j = 0; j < 6; j++)
                {
                    int intMask = 31;   //0x001F
                    result += chars[intMask & intMd5SubStr];
                    intMd5SubStr >>= 5;
                }
            }

            return result;

        }

        public void AddObjectToCloudTable(string tableName, string objId, TableEntity entity)
        {
            try
            {
                var cloudTable = this.cloudTableClient.GetTableReference(tableName);
                bool blCreateTable = cloudTable.CreateIfNotExists();
                string id = this.GetUniqueId(objId);
                entity.RowKey = id;

                // Create the TableOperation that inserts the customer entity.
                TableOperation insertOperation = TableOperation.Insert(entity);

                // Execute the insert operation.
                cloudTable.Execute(insertOperation);
            }
            catch (Exception ex)
            {
                HandleStorageException(ex);
                throw ex;
            }
        }

        public T GetObject<T>(string tableName, string objId) where T : TableEntity
        {
            T obj = null;
            var cloudTable = this.cloudTableClient.GetTableReference(tableName);
            string rowKey = this.GetUniqueId(objId);
            TableOperation operation = TableOperation.Retrieve<T>(tableName, rowKey);
            TableResult result = cloudTable.Execute(operation);

            if (result.Result != null)
            {
                obj = result.Result as T;
            }

            return obj;
        }
    }
}