Esempio n. 1
0
        /// <summary>
        /// Handle Redis commands written by user in TextBox
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void SendCommandToRedis(object sender, RoutedEventArgs e)
        {
            string[] splitText = textBoxMessage.Text.Split(' ');
            string   operation = splitText[0].ToLower();

            string key, value, response;
            bool   success;

            // Determine what operation should be called based on the first word of the textbox
            switch (operation)
            {
            case "set":
                // SET <key> <value>
                if (splitText.Length == 3)
                {
                    key                   = splitText[1];
                    value                 = splitText[2];
                    success               = redisDB.SetKey(key, value);
                    response              = (success == true) ? "OK" : "ERROR";
                    textBlockOutput.Text += string.Format("{0}: {1} {2} {3}\n", response, operation, key, value);
                }
                // SET <key> <value> <expiration>
                else if (splitText.Length == 4)
                {
                    key   = splitText[1];
                    value = splitText[2];
                    int expiration = int.Parse(splitText[3]);
                    success               = redisDB.SetKeyWithExpiration(key, value, expiration);
                    response              = (success == true) ? "OK" : "ERROR";
                    textBlockOutput.Text += string.Format("{0}: {1} {2} {3} {4}\n", response, operation, key, value, expiration);
                }
                else
                {
                    textBoxMessage.Text = "[ERROR][SYNTAX]: SET KEY VALUE";
                }
                break;

            case "del":
                // DEL <key>
                if (splitText.Length == 2)
                {
                    key                   = splitText[1];
                    success               = redisDB.DelKey(key);
                    response              = (success == true) ? "OK" : "ERROR";
                    textBlockOutput.Text += string.Format("{0}: {1} {2}\n", response, operation, key);
                }
                // DEL <keys>
                else if (splitText.Length > 2)
                {
                    // Construct array of keys from input, first element in splitText is "del" command - start with second element
                    string[] keys = new string[splitText.Length - 1];
                    for (int i = 0; i < keys.Length; i++)
                    {
                        keys[i] = splitText[i + 1];
                    }

                    long responseLong = redisDB.DelKeys(keys);

                    // Output
                    StringBuilder sb = new StringBuilder(string.Format("{0}: {1} ", responseLong, operation));
                    foreach (string k in keys)
                    {
                        sb.Append(string.Format("{0} ", k));
                    }
                    sb.Append("\n");
                    textBlockOutput.Text += sb.ToString();
                }
                else
                {
                    textBoxMessage.Text = "[ERROR][SYNTAX]: DEL KEY [, KEY, ...]";
                }
                break;

            case "ttl":
                // TTL <key>
                if (splitText.Length == 2)
                {
                    key = splitText[1];
                    int?successTTL = redisDB.TTLKey(key);
                    if (successTTL is int)
                    {
                        textBlockOutput.Text += string.Format("Key {0} expires in {1} seconds\n", key, successTTL);
                    }
                    else
                    {
                        textBlockOutput.Text += string.Format("Key {0} does not expire/exist\n", key);
                    }
                }
                else
                {
                    textBoxMessage.Text = "[ERROR][SYNTAX]: TTL KEY";
                }
                break;

            default:
                textBoxMessage.Text = "[ERROR]: UNKNOWN OPERATION!";
                break;
            }
        }