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ref(subscribe): refactored subscribe events data parsing/deserializat…
…ion implementation
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Mohit Tejani
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Mohit Tejani
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Jan 13, 2025
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,146 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Globalization; | ||
| using System.Linq; | ||
| using System.Reflection; | ||
|
|
||
| namespace PubnubApi; | ||
|
|
||
| public class EventDeserializer | ||
| { | ||
| private readonly IJsonPluggableLibrary jsonLibrary; | ||
| private readonly NewtonsoftJsonDotNet newtonSoftJsonLibrary; // the default serializer of sdk | ||
|
|
||
| public EventDeserializer(IJsonPluggableLibrary jsonLibrary, NewtonsoftJsonDotNet newtonSoftJsonLibrary) | ||
| { | ||
| this.jsonLibrary = jsonLibrary; | ||
| this.newtonSoftJsonLibrary = newtonSoftJsonLibrary; | ||
| } | ||
|
|
||
| public T Deserialize<T>(IDictionary<string, object> json) | ||
| { | ||
| T response = default(T); | ||
| var typeInfo = typeof(T); | ||
| if (typeInfo.GetTypeInfo().IsGenericType && typeInfo.GetGenericTypeDefinition() == typeof(PNMessageResult<>)) | ||
| { | ||
| response = newtonSoftJsonLibrary.DeserializeMessageResultEvent<T>(json); | ||
| } | ||
| else if (typeof(T) == typeof(PNObjectEventResult)) | ||
| { | ||
| PNObjectEventResult objectEvent = PNObjectEventJsonDataParse.GetObject(jsonLibrary, json); | ||
| response = (T)Convert.ChangeType(objectEvent, typeof(PNObjectEventResult), CultureInfo.InvariantCulture); | ||
| } | ||
| else if (typeof(T) == typeof(PNPresenceEventResult)) | ||
| { | ||
| PNPresenceEventResult presenceEvent = DeserializePresenceEvent(json); | ||
| response = (T)Convert.ChangeType(presenceEvent, typeof(PNPresenceEventResult), CultureInfo.InvariantCulture); | ||
| } | ||
|
|
||
| else if (typeof(T) == typeof(PNMessageActionEventResult)) | ||
| { | ||
| PNMessageActionEventResult messageActionEvent = PNMessageActionEventJsonDataParse.GetObject(jsonLibrary, json); | ||
| response = (T)Convert.ChangeType(messageActionEvent, typeof(PNMessageActionEventResult), CultureInfo.InvariantCulture); | ||
| } | ||
|
|
||
| return response; | ||
| } | ||
|
|
||
| private PNPresenceEventResult DeserializePresenceEvent(IDictionary<string, object> jsonFields) | ||
| { | ||
| Dictionary<string, object> presenceDicObj = jsonLibrary.ConvertToDictionaryObject(jsonFields["payload"]); | ||
|
|
||
| PNPresenceEventResult presenceEvent = null; | ||
|
|
||
| if (presenceDicObj != null) | ||
| { | ||
| presenceEvent = new PNPresenceEventResult(); | ||
| presenceEvent.Event = presenceDicObj["action"].ToString(); | ||
| long presenceTimeStamp; | ||
| if (Int64.TryParse(presenceDicObj["timestamp"].ToString(), out presenceTimeStamp)) | ||
| { | ||
| presenceEvent.Timestamp = presenceTimeStamp; | ||
| } | ||
|
|
||
| if (presenceDicObj.TryGetValue("uuid", out var value)) | ||
| { | ||
| presenceEvent.Uuid = value.ToString(); | ||
| } | ||
|
|
||
| if (Int32.TryParse(presenceDicObj["occupancy"].ToString(), out var presenceOccupany)) | ||
| { | ||
| presenceEvent.Occupancy = presenceOccupany; | ||
| } | ||
|
|
||
| if (presenceDicObj.TryGetValue("data", out var presenceEventDataField)) | ||
| { | ||
| if (presenceEventDataField is Dictionary<string, object> presenceData) | ||
| { | ||
| presenceEvent.State = presenceData; | ||
| } | ||
| } | ||
|
|
||
| if (Int64.TryParse(jsonFields["publishTimetoken"].ToString(), out var presenceTimetoken)) | ||
| { | ||
| presenceEvent.Timetoken = presenceTimetoken; | ||
| } | ||
|
|
||
| presenceEvent.Channel = jsonFields["channel"]?.ToString(); | ||
| presenceEvent.Channel = presenceEvent.Channel?.Replace("-pnpres", ""); | ||
|
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||
|
|
||
| presenceEvent.Subscription = jsonFields["channelGroup"]?.ToString(); | ||
| presenceEvent.Subscription = presenceEvent.Subscription?.Replace("-pnpres", ""); | ||
|
|
||
|
|
||
| if (jsonFields["userMetadata"] != null) | ||
| { | ||
| presenceEvent.UserMetadata = jsonFields["userMetadata"]; | ||
| } | ||
|
|
||
| if (presenceEvent.Event != null && presenceEvent.Event.ToLowerInvariant() == "interval") | ||
| { | ||
| if (presenceDicObj.TryGetValue("join", out var joinUserList)) | ||
| { | ||
| List<object> joinDeltaList = joinUserList as List<object>; | ||
| if (joinDeltaList is { Count: > 0 }) | ||
| { | ||
| presenceEvent.Join = joinDeltaList.Select(x => x.ToString()).ToArray(); | ||
| } | ||
| } | ||
|
|
||
| if (presenceDicObj.ContainsKey("timeout")) | ||
| { | ||
| List<object> timeoutDeltaList = presenceDicObj["timeout"] as List<object>; | ||
| if (timeoutDeltaList != null && timeoutDeltaList.Count > 0) | ||
| { | ||
| presenceEvent.Timeout = timeoutDeltaList.Select(x => x.ToString()).ToArray(); | ||
| } | ||
| } | ||
|
|
||
| if (presenceDicObj.ContainsKey("leave")) | ||
| { | ||
| List<object> leaveDeltaList = presenceDicObj["leave"] as List<object>; | ||
| if (leaveDeltaList != null && leaveDeltaList.Count > 0) | ||
| { | ||
| presenceEvent.Leave = leaveDeltaList.Select(x => x.ToString()).ToArray(); | ||
| } | ||
| } | ||
|
|
||
| if (presenceDicObj.ContainsKey("here_now_refresh")) | ||
| { | ||
| string hereNowRefreshStr = presenceDicObj["here_now_refresh"].ToString(); | ||
| if (!string.IsNullOrEmpty(hereNowRefreshStr)) | ||
| { | ||
| bool boolHereNowRefresh = false; | ||
| if (Boolean.TryParse(hereNowRefreshStr, out boolHereNowRefresh)) | ||
| { | ||
| presenceEvent.HereNowRefresh = boolHereNowRefresh; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return presenceEvent; | ||
| } | ||
| } |
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