private void Poll()
{
var jObject = new JObject();
jObject["chat_token"] = Token;
jObject["usernames"] = JArray.FromObject(AccountData.Users.Where(x => x.Update).Select(x => x.Name).ToArray());
jObject["after"] = LastPollTime + 0.005;
try
{
var response = Requester.PostRequest(Methods.ChatHistory, jObject);
var obj = JsonConvert.DeserializeObject(response) as JObject;
var chatHistory = new ChatHistory();
var chatObject = obj["chats"] as JObject;
foreach (var kvp in chatObject)
{
foreach (JObject msgObject in kvp.Value as JArray)
{
var channel = string.Empty;
if (msgObject["channel"] != null)
{
channel = msgObject["channel"].ToString();
}
if (msgObject["is_join"] != null)
{
var presence = new Presence(
msgObject["id"].ToString(),
double.Parse(msgObject["t"].ToString()),
kvp.Key,
msgObject["from_user"].ToString(),
channel,
bool.Parse(msgObject["is_join"].ToString())
);
chatHistory.Push(presence);
}
else
{
var message = new Message(
msgObject["id"].ToString(),
double.Parse(msgObject["t"].ToString()),
kvp.Key,
msgObject["from_user"].ToString(),
channel,
msgObject["msg"].ToString()
);
chatHistory.Push(message);
}
}
}
if (!chatHistory.IsEmpty)
{
LastPollTime = chatHistory.Last.Timestamp;
}
while (!chatHistory.IsEmpty)
{
var element = chatHistory.Pop();
if (element is Presence)
{
var pres = element as Presence;
var channel = AccountData.FindUser(pres.To).FindChannel(pres.Channel);
if (channel != null)
{
if (!pres.Joined)
{
if (channel.MemberExists(pres.From))
{
channel.Members.Remove(pres.From);
}
}
else
{
if (!channel.MemberExists(pres.From))
{
channel.Members.Add(pres.From);
}
}
}
PresenceReceived?.Invoke(this, new PresenceEventArgs(pres));
continue;
}
else if (element is Message)
{
if (element.From != element.To)
{
if (!RelayedIDs.Contains(element.ID))
{
RelayedIDs.Add(element.ID);
MessageReceived?.Invoke(this, new MessageEventArgs(element as Message));
}
}
else
{
if (!RelayedIDs.Contains(element.ID))
{
RelayedIDs.Add(element.ID);
MessageSent?.Invoke(this, new MessageEventArgs(element as Message));
}
}
if (RelayedIDs.Count > 100)
{
RelayedIDs.Clear();
}
}
}
}
catch (RequestException e)
{
ErrorOccured?.Invoke(this, new ErrorEventArgs(e));
}
}
/// <summary>
/// Starts receiving presence events.
/// </summary>
/// <since_tizen> 3 </since_tizen>
/// <remarks>
/// <para>Sends request to receive presence to an interested server's resource with resourceType.
/// If succeeded, <see cref="PresenceReceived"/> event handler will be triggered when the server sends presence.
/// A server sends presence events when adds / removes / alters a resource or start / stop presence.</para>
/// <para><paramref name="hostAddress" /> could be <see cref="MulticastAddress"/> for IPv4 multicast.
/// The length of <paramref name="resourceType" /> should be less than or equal to 61.
/// The <paramref name="resourceType" /> must start with a lowercase alphabetic character, followed by a sequence
/// of lowercase alphabetic, numeric, ".", or "-" characters, and contains no white space.</para>
/// </remarks>
/// <privilege>http://tizen.org/privilege/internet</privilege>
/// <privlevel>public</privlevel>
/// <param name="hostAddress">The address or addressable name of the server.</param>
/// <param name="resourceType">A resource type that a client is interested in.</param>
/// <returns>PresenceId - An identifier for this request.</returns>
/// <feature>http://tizen.org/feature/iot.ocf</feature>
/// <pre>Initialize() should be called to initialize.</pre>
/// <post>
/// When the resource receive presence, <see cref="PresenceReceived"/> event handler will be invoked.<br/>
/// You must destroy presence by calling StopReceivingPresence() if presence event is no longer needed.
/// </post>
/// <seealso cref="IoTConnectivityServerManager.StartSendingPresence(uint)"/>
/// <seealso cref="IoTConnectivityServerManager.StopSendingPresence()"/>
/// <seealso cref="StopReceivingPresence(int)"/>
/// <seealso cref="PresenceReceived"/>
/// <exception cref="NotSupportedException">Thrown when the iotcon is not supported.</exception>
/// <exception cref="ArgumentException">Thrown when there is an invalid parameter.</exception>
/// <exception cref="InvalidOperationException">Thrown when the operation is invalid.</exception>
/// <exception cref="UnauthorizedAccessException">Thrown when an application does not have privilege to access.</exception>
/// <exception cref="OutOfMemoryException">Thrown when there is not enough memory.</exception>
/// <example><code><![CDATA[
/// EventHandler<PresenceReceivedEventArgs> handler = (sender, e) => {
/// Console.Log("PresenceReceived, presence id :" + e.PresenceId);
/// }
/// EventHandler<FindingErrorOccurredEventArgs> errorHandler = (sender, e) => {
/// Console.Log("Found error :" + e.Error.Message);
/// }
/// IoTConnectivityClientManager.PresenceReceived += handler;
/// IoTConnectivityClientManager.FindingErrorOccurred += errorHandler;
/// // Do not forget to remove these event handlers when they are not required any more.
/// int id = IoTConnectivityClientManager.StartReceivingPresence(IoTConnectivityClientManager.MulticastAddress, "oic.iot.door");
/// ]]></code></example>
public static int StartReceivingPresence(string hostAddress, string resourceType)
{
Interop.IoTConnectivity.Client.RemoteResource.ConnectivityType connectivityType = Interop.IoTConnectivity.Client.RemoteResource.ConnectivityType.Ip;
if (resourceType != null && !ResourceTypes.IsValid(resourceType))
{
Log.Error(IoTConnectivityErrorFactory.LogTag, "Invalid type");
throw new ArgumentException("Invalid type");
}
IntPtr id = IntPtr.Zero;
lock (s_presenceCallbacksMap)
{
id = (IntPtr)s_presenceListenerId++;
}
s_presenceCallbacksMap[id] = (IntPtr presence, int result, IntPtr presenceResponseHandle, IntPtr userData) =>
{
int presenceId = (int)userData;
if (result == (int)IoTConnectivityError.None)
{
if (presenceResponseHandle != IntPtr.Zero)
{
PresenceReceivedEventArgs e = GetPresenceReceivedEventArgs(presenceId, presenceResponseHandle);
if (e == null)
{
Log.Error(IoTConnectivityErrorFactory.LogTag, "Can't get PresenceReceivedEventArgs");
return;
}
PresenceReceived?.Invoke(null, e);
}
else
{
Log.Error(IoTConnectivityErrorFactory.LogTag, "Handle is null");
return;
}
}
else
{
FindingErrorOccurredEventArgs e = GetFindingErrorOccurredEventArgs(presenceId, result);
FindingErrorOccurred?.Invoke(null, e);
}
};
IntPtr presenceHandle;
int errorCode = Interop.IoTConnectivity.Client.Presence.AddPresenceCb(hostAddress, (int)connectivityType, resourceType, s_presenceCallbacksMap[id], id, out presenceHandle);
if (errorCode != (int)IoTConnectivityError.None)
{
Log.Error(IoTConnectivityErrorFactory.LogTag, "Failed to register presence event handler");
lock (s_presenceCallbacksMap)
{
s_presenceCallbacksMap.Remove(id);
}
throw IoTConnectivityErrorFactory.GetException(errorCode);
}
lock (s_presenceHandlesMap)
{
s_presenceHandlesMap[id] = presenceHandle;
}
return((int)id);
}