/// <summary>组合组消息</summary>
/// <param name="message">消息</param>
/// <param name="remoteIdentity">远程标识</param>
/// <returns></returns>
protected virtual Message JoinGroup(GroupMessage message, Object remoteIdentity = null)
{
var key = String.Format("{0}#{1}", remoteIdentity, message.Identity);
MessageGroup mg = null;
if (!groups.TryGetValue(key, out mg))
{
mg = new MessageGroup();
mg.Identity = message.Identity;
groups.Add(key, mg);
}
// 加入到组，如果返回false，表示未收到所有消息
if (!mg.Add(message))
{
WriteLog("接收分组 Identity={0} {1}/{2} [{3}] 已完成：{4}/{5}", message.Identity, message.Index, message.Count, message.Data == null ? 0 : message.Data.Length, mg.Count, mg.Total);
return(null);
}
WriteLog("接收分组 Identity={0} {1}/{2} [{3}] 已完成：{4}/{5}", message.Identity, message.Index, message.Count, message.Data == null ? 0 : message.Data.Length, mg.Count, mg.Total);
// 否则，表示收到所有消息
groups.Remove(key);
// 读取真正的消息
return(mg.GetMessage());
}
/// <summary>发送消息。如果有响应，可在消息到达事件<see cref="OnReceived"/>中获得。这里会实现大消息分包。</summary>
/// <param name="message"></param>
public virtual void Send(Message message)
{
var ms = message.GetStream();
WriteLog("发送消息 [{0}] {1}", ms.Length, message);
if (MaxMessageSize <= 0 || ms.Length < MaxMessageSize)
{
OnSend(ms);
}
else
{
var mg = new MessageGroup();
//mg.Split(ms, MaxMessageSize, message.Header);
var count = 0;
foreach (var item in mg)
{
if (item.Index == 1)
{
count = item.Count;
}
ms = item.GetStream();
WriteLog("发送分组 Identity={0} {1}/{2} [{3}] [{4}]", item.Identity, item.Index, count, item.Data == null ? 0 : item.Data.Length, ms.Length);
Debug.Assert(item.Index == count || ms.Length == MaxMessageSize, "分拆的组消息大小不合适！");
OnSend(ms);
}
}
}