/// <summary> /// Deserializes the specified json string to a presence object. /// </summary> /// <param name="message">Json string to deserialize.</param> /// <returns></returns> public static Presence Deserialize(string message) { Presence result = new Presence(); if (!String.IsNullOrEmpty(message)) { var json = message.Replace("\\\\\"", @""""); json = Regex.Unescape(json); Match presenceMatch = Regex.Match(json, SUBSCRIPTIONS_PATTERN, RegexOptions.Compiled); var subscriptions = 0; if (int.TryParse(presenceMatch.Groups["subscriptions"].Value, out subscriptions)) { var metadataContent = presenceMatch.Groups["metadata"].Value; var metadataRegex = new Regex(METADATA_PATTERN, RegexOptions.Compiled); foreach (Match metadata in metadataRegex.Matches(metadataContent)) { if (metadata.Groups.Count > 1) { var metadataDetailMatch = Regex.Match(metadata.Groups[0].Value, METADATA_DETAIL_PATTERN, RegexOptions.Compiled); var metadataSubscriptions = 0; if (int.TryParse(metadataDetailMatch.Groups[2].Value, out metadataSubscriptions)) { result.Metadata.Add(metadataDetailMatch.Groups[1].Value, metadataSubscriptions); } } } } result.Subscriptions = subscriptions; } return result; }
/// <summary> /// Gets the subscriptions in the specified channel and if active the first 100 unique metadata. /// </summary> /// <param name="url">Server containing the presence service.</param> /// <param name="isCluster">Specifies if url is cluster.</param> /// <param name="applicationKey">Application key with access to presence service.</param> /// <param name="authenticationToken">Authentication token with access to presence service.</param> /// <param name="channel">Channel with presence data active.</param> /// <param name="callback"><see cref="OnPresenceDelegate"/>Callback with error <see cref="OrtcPresenceException"/> and result <see cref="Presence"/>.</param> /// <example> /// <code> /// client.Presence("http://ortc-developers.realtime.co/server/2.1", true, "myApplicationKey", "myAuthenticationToken", "presence-channel", (error, result) => /// { /// if (error != null) /// { /// Console.WriteLine(error.Message); /// } /// else /// { /// if (result != null) /// { /// Console.WriteLine(result.Subscriptions); /// /// if (result.Metadata != null) /// { /// foreach (var metadata in result.Metadata) /// { /// Console.WriteLine(metadata.Key + " - " + metadata.Value); /// } /// } /// } /// else /// { /// Console.WriteLine("There is no presence data"); /// } /// } /// }); /// </code> /// </example> public static void GetPresence(String url, bool isCluster, String applicationKey, String authenticationToken, String channel, OnPresenceDelegate callback) { Balancer.GetServerUrl(url, isCluster, applicationKey, (error, server) => { var presenceUrl = String.IsNullOrEmpty(server) ? server : server[server.Length - 1] == '/' ? server : server + "/"; presenceUrl = String.Format("{0}presence/{1}/{2}/{3}", presenceUrl, applicationKey, authenticationToken, channel); RestWebservice.GetAsync(presenceUrl, (responseError, result) => { if (responseError != null) { callback(responseError, null); } else { Presence presenceData = new Presence(); if (!String.IsNullOrEmpty(result)) { presenceData = Extensibility.Presence.Deserialize(result); } callback(null, presenceData); } }); }); }