/// <summary>
/// 接收消息
/// </summary>
/// <typeparam name="T">消息类型</typeparam>
/// <param name="hubConnectionBuilder">Hub连接建造者</param>
/// <param name="onReceive">消息接收事件</param>
public static void Receive <T>(HubConnectionBuilder hubConnectionBuilder, Action <T> onReceive) where T : IMessage
{
#region # 验证
if (!hubConnectionBuilder.HubConnectionBuilt)
{
throw new InvalidOperationException("Hub连接未构建，不可接收消息！");
}
#endregion
string hubName = MessageExtension.GetHubName <T>();
#region # 验证
if (!hubConnectionBuilder.ReceiverProxies.ContainsKey(hubName))
{
throw new InvalidOperationException($"要接收的消息类型\"{typeof(T).Name}\"未注册！");
}
#endregion
IHubProxy proxy = hubConnectionBuilder.ReceiverProxies[hubName];
proxy.On <T>(CommonConstants.ExchangeMethodName, onReceive);
}
/// <summary>
/// 发送消息
/// </summary>
/// <typeparam name="T">消息类型</typeparam>
/// <param name="hubConnectionBuilder">Hub连接建造者</param>
/// <param name="message">消息</param>
public static async Task SendAsync <T>(HubConnectionBuilder hubConnectionBuilder, T message) where T : IMessage
{
#region # 验证
if (!hubConnectionBuilder.HubConnectionBuilt)
{
throw new InvalidOperationException("Hub连接未构建，不可发送消息！");
}
#endregion
string hubName = MessageExtension.GetHubName <T>();
#region # 验证
if (!hubConnectionBuilder.SenderProxies.ContainsKey(hubName))
{
throw new InvalidOperationException($"要发送的消息类型\"{typeof(T).Name}\"未注册！");
}
#endregion
IHubProxy proxy = hubConnectionBuilder.SenderProxies[hubName];
await proxy.Invoke(CommonConstants.ExchangeMethodName, message);
//消息已发送事件
OnMessageSent?.Invoke(message);
}
/// <summary>
/// 注册接收消息类型
/// </summary>
/// <param name="messageTypes">消息类型列表</param>
public void RegisterMessagesToReceive(IEnumerable <Type> messageTypes)
{
#region # 验证
if (this.HubConnectionBuilt)
{
throw new InvalidOperationException("Hub连接已构建，不可注册接收消息类型！");
}
#endregion
messageTypes = messageTypes?.Distinct().ToArray() ?? new Type[0];
foreach (Type messageType in messageTypes)
{
#region # 验证
if (!typeof(IMessage).IsAssignableFrom(messageType))
{
throw new InvalidOperationException($"类型\"{messageType.Name}\"未实现\"{nameof(IMessage)}\"接口！");
}
#endregion
string hubName = MessageExtension.GetHubName(messageType);
IHubProxy hubProxy = this.HubConnection.CreateHubProxy(hubName);
this._receiverProxies.Add(hubName, hubProxy);
}
}