Remove unneeded _sealed_ keywords. Update docs.

Build/MQTTnet.nuspec

@@ -13,12 +13,16 @@
     <releaseNotes> * [Core] Performance optimizations.
 * [Core] Due to performance reasons the timestamp of log messages is now in UTC format.
 * [Core] Added several packet validations.
+* [Core] Log messages now contain the complete source path including parent components.
+* [Core] The adapter now has an _Endpoint_ definition as string containing remote IP and port.
 * [Client] Received messages are now processed in the worker thread by default. Added a new setting for switching back to dedicated threads.
 * [ManagedClient] Fixed a loading issue of stored application messages (thanks to @JTrotta).
 * [Server] Added support for other WebSocket sub protocol formats like mqttv-3.1.1 (thanks to @israellot).
 * [Server] The takeover of an existing client sessions is now treated as a _clean_ disconnect of the previous client.
 * [Server] The pending messages queue per client is now limited to 250 messages. Overflow strategy and count can be changed via options (thanks to @VladimirAkopyan)
 * [Server] Keep alive checking is now suspended while large packages are being received (and thus the client is connected). Keep alive checking continues after a large packet is received completely.
+* [Server] Rewritten the _ConnectedClients_ API and added new features for disconnecting and Endpoint information (IP etc.).
+* [Server] Added settings for disabling persistent sessions and defining a max pending messages queue size per session.
     </releaseNotes>
     <copyright>Copyright Christian Kratky 2016-2018</copyright>
     <tags>MQTT Message Queue Telemetry Transport MQTTClient MQTTServer Server MQTTBroker Broker NETStandard IoT InternetOfThings Messaging Hardware Arduino Sensor Actuator M2M ESP Smart Home Cities Automation Xamarin</tags> 

Extensions/MQTTnet.Extensions.Rpc/MqttRpcClient.cs

@@ -9,7 +9,7 @@ using MQTTnet.Protocol;
 
 namespace MQTTnet.Extensions.Rpc
 {
-    public sealed class MqttRpcClient : IDisposable
+    public class MqttRpcClient : IDisposable
     {
         private readonly ConcurrentDictionary<string, TaskCompletionSource<byte[]>> _waitingCalls = new ConcurrentDictionary<string, TaskCompletionSource<byte[]>>();
         private readonly IMqttClient _mqttClient;

Frameworks/MQTTnet.NetStandard/Adapter/MqttChannelAdapter.cs

@@ -13,7 +13,7 @@ using MQTTnet.Serializer;
 
 namespace MQTTnet.Adapter
 {
-    public sealed class MqttChannelAdapter : IMqttChannelAdapter
+    public class MqttChannelAdapter : IMqttChannelAdapter
     {
         private const uint ErrorOperationAborted = 0x800703E3;
         private const int ReadBufferSize = 4096;  // TODO: Move buffer size to config

Frameworks/MQTTnet.NetStandard/Adapter/ReceivedMqttPacket.cs

@@ -3,7 +3,7 @@ using System.IO;
 
 namespace MQTTnet.Adapter
 {
-    public sealed class ReceivedMqttPacket : IDisposable
+    public class ReceivedMqttPacket : IDisposable
     {
         public ReceivedMqttPacket(byte fixedHeader, MemoryStream body)
         {

Frameworks/MQTTnet.NetStandard/Diagnostics/MqttNetChildLogger.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Diagnostics
 {
-    public sealed class MqttNetChildLogger : IMqttNetChildLogger
+    public class MqttNetChildLogger : IMqttNetChildLogger
     {
         private readonly IMqttNetLogger _logger;
         private readonly string _source;

Frameworks/MQTTnet.NetStandard/Diagnostics/MqttNetLogMessage.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Diagnostics
 {
-    public sealed class MqttNetLogMessage
+    public class MqttNetLogMessage
     {
         public MqttNetLogMessage(string logId, DateTime timestamp, int threadId, string source, MqttNetLogLevel level, string message, Exception exception)
         {

Frameworks/MQTTnet.NetStandard/Diagnostics/MqttNetLogMessagePublishedEventArgs.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Diagnostics
 {
-    public sealed class MqttNetLogMessagePublishedEventArgs : EventArgs
+    public class MqttNetLogMessagePublishedEventArgs : EventArgs
     {
         public MqttNetLogMessagePublishedEventArgs(MqttNetLogMessage logMessage)
         {

Frameworks/MQTTnet.NetStandard/Diagnostics/MqttNetLogger.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Diagnostics
 {
-    public sealed class MqttNetLogger : IMqttNetLogger
+    public class MqttNetLogger : IMqttNetLogger
     {
         private readonly string _logId;
 

Frameworks/MQTTnet.NetStandard/Exceptions/MqttCommunicationTimedOutException.cs

@@ -2,10 +2,14 @@
 
 namespace MQTTnet.Exceptions
 {
-    public sealed class MqttCommunicationTimedOutException : MqttCommunicationException
+    public class MqttCommunicationTimedOutException : MqttCommunicationException
     {
-        public MqttCommunicationTimedOutException() { }
+        public MqttCommunicationTimedOutException()
-        public MqttCommunicationTimedOutException(Exception innerException) : base(innerException) { }
+        {
+        }
 
+        public MqttCommunicationTimedOutException(Exception innerException) : base(innerException)
+        {
+        }
     }
 }

Frameworks/MQTTnet.NetStandard/Exceptions/MqttProtocolViolationException.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Exceptions
 {
-    public sealed class MqttProtocolViolationException : Exception
+    public class MqttProtocolViolationException : Exception
     {
         public MqttProtocolViolationException(string message)
             : base(message)

Frameworks/MQTTnet.NetStandard/Implementations/MqttTcpChannel.Uwp.cs

@@ -14,7 +14,7 @@ using MQTTnet.Client;
 
 namespace MQTTnet.Implementations
 {
-    public sealed class MqttTcpChannel : IMqttChannel
+    public class MqttTcpChannel : IMqttChannel
     {
         // ReSharper disable once MemberCanBePrivate.Global
         // ReSharper disable once AutoPropertyCanBeMadeGetOnly.Global

Frameworks/MQTTnet.NetStandard/Implementations/MqttTcpChannel.cs

@@ -13,7 +13,7 @@ using MQTTnet.Client;
 
 namespace MQTTnet.Implementations
 {
-    public sealed class MqttTcpChannel : IMqttChannel
+    public class MqttTcpChannel : IMqttChannel
     {
         private readonly MqttClientTcpOptions _options;
 

Frameworks/MQTTnet.NetStandard/Implementations/MqttWebSocketChannel.cs

@@ -8,7 +8,7 @@ using MQTTnet.Client;
 
 namespace MQTTnet.Implementations
 {
-    public sealed class MqttWebSocketChannel : IMqttChannel
+    public class MqttWebSocketChannel : IMqttChannel
     {
         private readonly SemaphoreSlim _sendLock = new SemaphoreSlim(1, 1);
         private readonly MqttClientWebSocketOptions _options;

Frameworks/MQTTnet.NetStandard/Internal/AsyncLock.cs

@@ -5,7 +5,7 @@ using System.Threading.Tasks;
 namespace MQTTnet.Internal
 {
     // From Stephen Toub (https://blogs.msdn.microsoft.com/pfxteam/2012/02/12/building-async-coordination-primitives-part-6-asynclock/)
-    public sealed class AsyncLock : IDisposable
+    public class AsyncLock : IDisposable
     {
         private readonly SemaphoreSlim _semaphore = new SemaphoreSlim(1, 1);
         private readonly Task<IDisposable> _releaser;
@@ -30,7 +30,7 @@ namespace MQTTnet.Internal
             _semaphore?.Dispose();
         }
 
-        private sealed class Releaser : IDisposable
+        private class Releaser : IDisposable
         {
             private readonly AsyncLock _toRelease;
 

Frameworks/MQTTnet.NetStandard/MqttApplicationMessage.cs

@@ -1,23 +1,9 @@
-using System;
+using MQTTnet.Protocol;
-using MQTTnet.Protocol;
 
 namespace MQTTnet
 {
-    public sealed class MqttApplicationMessage
+    public class MqttApplicationMessage
     {
-        public MqttApplicationMessage()
-        {
-        }
-
-        [Obsolete("Use object initializer or _MqttApplicationMessageBuilder_ instead.")]
-        public MqttApplicationMessage(string topic, byte[] payload, MqttQualityOfServiceLevel qualityOfServiceLevel, bool retain)
-        {
-            Topic = topic ?? throw new ArgumentNullException(nameof(topic));
-            Payload = payload ?? throw new ArgumentNullException(nameof(payload));
-            QualityOfServiceLevel = qualityOfServiceLevel;
-            Retain = retain;
-        }
-
         public string Topic { get; set; }
 
         public byte[] Payload { get; set; }

Frameworks/MQTTnet.NetStandard/MqttApplicationMessageReceivedEventArgs.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet
 {
-    public sealed class MqttApplicationMessageReceivedEventArgs : EventArgs
+    public class MqttApplicationMessageReceivedEventArgs : EventArgs
     {
         public MqttApplicationMessageReceivedEventArgs(string clientId, MqttApplicationMessage applicationMessage)
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttConnAckPacket.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Packets
 {
-    public sealed class MqttConnAckPacket : MqttBasePacket
+    public class MqttConnAckPacket : MqttBasePacket
     {
         public bool IsSessionPresent { get; set; }
 

Frameworks/MQTTnet.NetStandard/Packets/MqttConnectPacket.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Packets
 {
-    public sealed class MqttConnectPacket : MqttBasePacket
+    public class MqttConnectPacket : MqttBasePacket
     {
         public MqttProtocolVersion ProtocolVersion { get; set; }
 

Frameworks/MQTTnet.NetStandard/Packets/MqttDisconnectPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttDisconnectPacket : MqttBasePacket
+    public class MqttDisconnectPacket : MqttBasePacket
     {
         public override string ToString()
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttPingReqPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttPingReqPacket : MqttBasePacket
+    public class MqttPingReqPacket : MqttBasePacket
     {
         public override string ToString()
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttPingRespPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttPingRespPacket : MqttBasePacket
+    public class MqttPingRespPacket : MqttBasePacket
     {
         public override string ToString()
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttPubAckPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttPubAckPacket : MqttBasePublishPacket
+    public class MqttPubAckPacket : MqttBasePublishPacket
     {
         public override string ToString()
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttPubCompPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttPubCompPacket : MqttBasePublishPacket
+    public class MqttPubCompPacket : MqttBasePublishPacket
     {
         public override string ToString()
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttPubRecPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttPubRecPacket : MqttBasePublishPacket
+    public class MqttPubRecPacket : MqttBasePublishPacket
     {
         public override string ToString()
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttPubRelPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttPubRelPacket : MqttBasePublishPacket
+    public class MqttPubRelPacket : MqttBasePublishPacket
     {
         public override string ToString()
         {

Frameworks/MQTTnet.NetStandard/Packets/MqttPublishPacket.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Packets
 {
-    public sealed class MqttPublishPacket : MqttBasePublishPacket
+    public class MqttPublishPacket : MqttBasePublishPacket
     {
         public bool Retain { get; set; }
 

Frameworks/MQTTnet.NetStandard/Packets/MqttSubAckPacket.cs

@@ -4,7 +4,7 @@ using MQTTnet.Protocol;
 
 namespace MQTTnet.Packets
 {
-    public sealed class MqttSubAckPacket : MqttBasePacket, IMqttPacketWithIdentifier
+    public class MqttSubAckPacket : MqttBasePacket, IMqttPacketWithIdentifier
     {
         public ushort? PacketIdentifier { get; set; }
 

Frameworks/MQTTnet.NetStandard/Packets/MqttSubscribePacket.cs

@@ -3,7 +3,7 @@ using System.Linq;
 
 namespace MQTTnet.Packets
 {
-    public sealed class MqttSubscribePacket : MqttBasePacket, IMqttPacketWithIdentifier
+    public class MqttSubscribePacket : MqttBasePacket, IMqttPacketWithIdentifier
     {
         public ushort? PacketIdentifier { get; set; }
 

Frameworks/MQTTnet.NetStandard/Packets/MqttUnsubAckPacket.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Packets
 {
-    public sealed class MqttUnsubAckPacket : MqttBasePacket, IMqttPacketWithIdentifier
+    public class MqttUnsubAckPacket : MqttBasePacket, IMqttPacketWithIdentifier
     {
         public ushort? PacketIdentifier { get; set; }
 

Frameworks/MQTTnet.NetStandard/Packets/MqttUnsubscribe.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Packets
 {
-    public sealed class MqttUnsubscribePacket : MqttBasePacket, IMqttPacketWithIdentifier
+    public class MqttUnsubscribePacket : MqttBasePacket, IMqttPacketWithIdentifier
     {
         public ushort? PacketIdentifier { get; set; }
 

Frameworks/MQTTnet.NetStandard/Serializer/ByteReader.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Serializer
 {
-    public sealed class ByteReader
+    public class ByteReader
     {
         private readonly int _source;
         private int _index;

Frameworks/MQTTnet.NetStandard/Serializer/ByteWriter.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Serializer
 {
-    public sealed class ByteWriter
+    public class ByteWriter
     {
         private int _index;
         private int _byte;

Frameworks/MQTTnet.NetStandard/Serializer/MqttPacketSerializer.cs

@@ -8,7 +8,7 @@ using MQTTnet.Adapter;
 
 namespace MQTTnet.Serializer
 {
-    public sealed class MqttPacketSerializer : IMqttPacketSerializer
+    public class MqttPacketSerializer : IMqttPacketSerializer
     {
         public MqttProtocolVersion ProtocolVersion { get; set; } = MqttProtocolVersion.V311;
 

Frameworks/MQTTnet.NetStandard/Server/GetOrCreateClientSessionResult.cs

@@ -1,6 +1,6 @@
 namespace MQTTnet.Server
 {
-    public sealed class GetOrCreateClientSessionResult
+    public class GetOrCreateClientSessionResult
     {
         public bool IsExistingSession { get; set; }
 

Frameworks/MQTTnet.NetStandard/Server/MqttClientKeepAliveMonitor.cs

@@ -7,7 +7,7 @@ using MQTTnet.Packets;
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttClientKeepAliveMonitor
+    public class MqttClientKeepAliveMonitor
     {
         private readonly Stopwatch _lastPacketReceivedTracker = new Stopwatch();
         private readonly Stopwatch _lastNonKeepAlivePacketReceivedTracker = new Stopwatch();

Frameworks/MQTTnet.NetStandard/Server/MqttClientPendingMessagesQueue.cs

@@ -11,7 +11,7 @@ using MQTTnet.Protocol;
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttClientPendingMessagesQueue : IDisposable
+    public class MqttClientPendingMessagesQueue : IDisposable
     {
         private readonly AsyncAutoResetEvent _queueAutoResetEvent = new AsyncAutoResetEvent();
         private readonly IMqttServerOptions _options;

Frameworks/MQTTnet.NetStandard/Server/MqttClientSession.cs

@@ -12,7 +12,7 @@ using MQTTnet.Protocol;
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttClientSession : IDisposable
+    public class MqttClientSession : IDisposable
     {
         private readonly MqttPacketIdentifierProvider _packetIdentifierProvider = new MqttPacketIdentifierProvider();
 

Frameworks/MQTTnet.NetStandard/Server/MqttClientSessionsManager.cs

@@ -12,7 +12,7 @@ using MQTTnet.Protocol;
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttClientSessionsManager : IDisposable
+    public class MqttClientSessionsManager : IDisposable
     {
         private readonly ConcurrentDictionary<string, MqttClientSession> _sessions = new ConcurrentDictionary<string, MqttClientSession>();
         private readonly AsyncLock _sessionPreparationLock = new AsyncLock();

Frameworks/MQTTnet.NetStandard/Server/MqttClientSubscriptionsManager.cs

@@ -7,7 +7,7 @@ using MQTTnet.Protocol;
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttClientSubscriptionsManager
+    public class MqttClientSubscriptionsManager
     {
         private readonly ConcurrentDictionary<string, MqttQualityOfServiceLevel> _subscriptions = new ConcurrentDictionary<string, MqttQualityOfServiceLevel>();
         private readonly IMqttServerOptions _options;

Frameworks/MQTTnet.NetStandard/Server/MqttRetainedMessagesManager.cs

@@ -7,7 +7,7 @@ using MQTTnet.Diagnostics;
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttRetainedMessagesManager
+    public class MqttRetainedMessagesManager
     {
         private readonly ConcurrentDictionary<string, MqttApplicationMessage> _messages = new ConcurrentDictionary<string, MqttApplicationMessage>();
         private readonly IMqttNetChildLogger _logger;

Frameworks/MQTTnet.NetStandard/Server/MqttServerDefaultEndpointOptions.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttServerDefaultEndpointOptions
+    public class MqttServerDefaultEndpointOptions
     {
         public bool IsEnabled { get; set; } = true;
 

Frameworks/MQTTnet.NetStandard/Server/MqttServerTlsEndpointOptions.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet.Server
 {
-    public sealed class MqttServerTlsEndpointOptions
+    public class MqttServerTlsEndpointOptions
     {
         public bool IsEnabled { get; set; }
 

Frameworks/MQTTnet.NetStandard/TopicFilter.cs

@@ -2,7 +2,7 @@
 
 namespace MQTTnet
 {
-    public sealed class TopicFilter
+    public class TopicFilter
     {
         public TopicFilter(string topic, MqttQualityOfServiceLevel qualityOfServiceLevel)
         {