/// <summary>
/// 开始监视
/// </summary>
public void StartWatch(SynchronousController caller)
{
holder = caller;
Thread WatchThread = new Thread(WatchMessageQueue);
WatchThread.Start();
}
/// <summary>
/// 处理ADD消息
/// </summary>
/// <param name="callerID"></param>
/// <param name="lineHash"></param>
/// <param name="content"></param>
/// <param name="sc"></param>
public static void DoAdd(string callerID, int lineHash, string content, SynchronousController sc)
{
TextLine targetLine = sc.TextDoc.GetLineByHash(lineHash);
TextLine newLine = new TextLine(content, lineHash);
if (targetLine == null)
{
throw new Exception("不存在的lineHash值");
}
if (targetLine.NewLines.Count > 0)
{
TextLine oldLine = targetLine.NewLines.Dequeue();
if (oldLine.ID < lineHash)
{
TextLine positionLine = sc.TextDoc.ToAddNewLineAfterLine(newLine, oldLine);
int position = sc.TextDoc.GetIndexByHash(positionLine.ID);
sc.ToAddNewLine(position, content);
}
else if (oldLine.ID > lineHash)
{
int positon = sc.TextDoc.GetIndexByHash(oldLine.ID) - 1;
sc.ToAddNewLine(positon, content);
sc.TextDoc.ToAddNewLineBeforeLine(newLine, oldLine);
}
}
sc.MessageQueues.MessagesToSend.Enqueue(MessageWrapper.WriteMsg(callerID, sc.Identity, MessageType.VRF, lineHash, "ADD"));
}
/// <summary>
/// 处理DEL消息
/// </summary>
/// <param name="callerID"></param>
/// <param name="lineHash"></param>
/// <param name="sc"></param>
public static void DoDel(string callerID, int lineHash, SynchronousController sc)
{
TextDoc textDoc = sc.TextDoc;
int index = textDoc.GetIndexByHash(lineHash);
textDoc.DeleteLine(textDoc.GetLineByHash(lineHash));
sc.ToDeleteLine(index);
sc.MessageQueues.MessagesToSend.Enqueue(MessageWrapper.WriteMsg(callerID, sc.Identity, MessageType.VRF, lineHash, "DEL"));
}
/// <summary>
/// 处理VRF消息
/// </summary>
/// <param name="lineHash"></param>
/// <param name="detail"></param>
public static void DoVrf(int lineHash, string detail, SynchronousController sc)
{
if (detail.StartsWith("ADD"))
{
sc.TextDoc.GetLineByHash(lineHash).NewLines.Dequeue();
return;
}
if (detail.StartsWith("DEL"))
{
TextLine targetLine = sc.TextDoc.GetLineByHash(lineHash);
sc.TextDoc.ConfirmDeleteLine(targetLine);
return;
}
if (detail.StartsWith("UPD"))
{
detail.Remove(0, 3);
if (sc.TextDoc.GetLineByHash(lineHash).GetContent() == detail)
{
sc.TextDoc.GetLineByHash(lineHash).Mark = LineMarkType.UnChanged;
}
return;
}
}
/// <summary>
/// 解析处理收到的消息
/// </summary>
/// <param name="msg"></param>
public static void DoAnalyse(Message msg, SynchronousController sc)
{
switch (msg.Type)
{
case MessageType.ADD:
DoAdd(msg.CallerID, msg.LineHash, msg.Detail, sc);
break;
case MessageType.DEL:
DoDel(msg.CallerID, msg.LineHash, sc);
break;
case MessageType.UPD:
DoUpd(msg.CallerID, msg.LineHash, msg.Detail, sc);
break;
case MessageType.APPLY:
DoApply(sc);
break;
case MessageType.INI:
DoIni(msg.LineHash, msg.Detail, sc);
break;
case MessageType.JOIN:
DoJoin(msg.Detail, sc);
break;
case MessageType.VRF:
;
break;
case MessageType.END:
;
break;
}
}
/// <summary>
/// 处理UPD消息
/// </summary>
/// <param name="callerID"></param>
/// <param name="lineHash"></param>
/// <param name="content"></param>
/// <param name="sc"></param>
public static void DoUpd(string callerID, int lineHash, string content, SynchronousController sc)
{
TextLine targetLine = sc.TextDoc.GetLineByHash(lineHash);
if (targetLine.Mark == LineMarkType.Changed)
{
//自己的修改消息会先到达对面，无需发确认消息对面也会知道冲突存在
//TODO:调用消息告知发生冲突的位置和对方文本，由编辑器显示(建议在对应行的下方以另一种颜色显示)
return;
}
if (targetLine.Mark == LineMarkType.Deleted)
{
//由于删除优先级最高，故对方的该行也将被删除，不必回复确认消息
return;
}
if (targetLine.Mark == LineMarkType.UnChanged)
{
targetLine.EditContent(content);
int index = sc.TextDoc.GetIndexByHash(lineHash);
sc.ToModifyLine(index, content);
sc.MessageQueues.MessagesToSend.Enqueue(MessageWrapper.WriteMsg(callerID, sc.Identity, MessageType.VRF, lineHash, "UPD" + content));
return;
}
}
/// <summary>
/// 处理END消息
/// </summary>
/// <param name="sc"></param>
public static void DoEnd(SynchronousController sc)
{
sc.EndConnection();
}
/// <summary>
/// 处理Join消息
/// </summary>
/// <param name="responderID"></param>
/// <param name="sc"></param>
public static void DoJoin(string responderID, SynchronousController sc)
{
sc.GetConnected(responderID);
}
/// <summary>
/// 处理INI消息
/// </summary>
/// <param name="lineHash"></param>
/// <param name="content"></param>
/// <param name="sc"></param>
public static void DoIni(int lineHash, string content, SynchronousController sc)
{
sc.ToAddNewLine(lineHash, content);
}
/// <summary>
/// 处理APPLY消息
/// </summary>
/// <param name="sc"></param>
public static void DoApply(SynchronousController sc)
{
sc.Connected();
}
/// <summary>
/// 获取控制器
/// </summary>
/// <param name="id"></param>
/// <param name="url"></param>
/// <returns></returns>
public SynchronousController GetSynchronousController(string id, string url)
{
SController = new SynchronousController(id, url);
return(SController);
}
