/// <summary>
/// put the message into the specific room
/// </summary>
/// <param name="clientIP">the client IP</param>
/// <param name="msg">the string include the room id and received message</param>
public void AddMsgToFile(string clientIP, string msg)
{
// TODO : put the message into the specific room
MsgHandler msgHandler = (MsgHandler)JsonConvert.DeserializeObject(msg, typeof(MsgHandler));
string roomFile = "DataBase\\" + msgHandler.roomId + ".txt";
if (Server.dictLock.ContainsKey(msgHandler.roomId))
{
try
{
lock (Server.dictLock[msgHandler.roomId])
{
FileStream fs = File.OpenWrite(roomFile);
fs.Position = fs.Length;
foreach (string message in msgHandler.msgList)
{
byte[] writeMsg = Encoding.UTF8.GetBytes(message + "\r\n");
fs.Write(writeMsg, 0, writeMsg.Length);
}
fs.Close();
}
}
catch (Exception e)
{
Console.WriteLine("[Error]Exception happens during writing message into room " + msgHandler.roomId + ". [ExceptionMsg]" + e.Message);
}
}
else
{
Server.dictLock.Add(msgHandler.roomId, new Object());
try
{
lock (Server.dictLock[msgHandler.roomId])
{
FileStream fs = new FileStream(roomFile, FileMode.Create);
fs.Close();
}
}
catch (Exception e)
{
Console.WriteLine("[Error]Exception happens during creating new room " + msgHandler.roomId + " in FUNC[AddMsgToFile]. [ExceptionMsg]" + e.Message);
}
try
{
lock (Server.dictLock["room"])
{
string romFile = "room.txt";
FileStream f = File.OpenWrite(romFile);
f.Position = f.Length;
byte[] writeMsg = Encoding.UTF8.GetBytes(msgHandler.roomId + "\r\n");
f.Write(writeMsg, 0, writeMsg.Length);
f.Close();
}
}
catch (Exception e)
{
Console.WriteLine("[Error]Exception happens during writing message into room " + msgHandler.roomId + " in FUNC[AddMsgToFile]. [ExceptionMsg]" + e.Message);
}
}
GetRoomMsg(clientIP, msgHandler.roomId);
}
/// <summary>
/// get the history message of the specific chat room
/// </summary>
/// <param name="clientIP">the client IP</param>
/// <param name="msg">the room ID</param>
public void GetRoomMsg(string clientIP, string roomId)
{
// TODO : get the history of specific chat room
string roomFile = "DataBase\\" + roomId + ".txt";
List <string> msgList = new List <string>();
MsgHandler msgHandler;
String sendMsg = "";
if (Server.dictLock.ContainsKey(roomId))
{
try
{
lock (Server.dictLock[roomId])
{
StreamReader sr = new StreamReader(roomFile, Encoding.UTF8);
String lineMsg;
while ((lineMsg = sr.ReadLine()) != null)
{
lineMsg += ("\r\n" + sr.ReadLine());
msgList.Add(lineMsg);
}
sr.Close();
}
msgHandler = new MsgHandler(roomId, msgList);
sendMsg = JsonConvert.SerializeObject(msgHandler);
}
catch (Exception e)
{
Console.WriteLine("[Error]Exception happens during getting message from room " + roomId + ". [ExceptionMsg]" + e.Message);
}
}
else
{
Server.dictLock.Add(roomId, new Object());
lock (Server.dictLock[roomId])
{
try
{
FileStream fs = new FileStream(roomFile, FileMode.Create);
fs.Close();
}
catch (Exception e)
{
Console.WriteLine("[Error]Exception happens during creating new room " + roomId + " in FUNC[GetRoomMsg]. [ExceptionMsg]" + e.Message);
}
try
{
lock (Server.dictLock["room"])
{
string romFile = "room.txt";
FileStream f = File.OpenWrite(romFile);
f.Position = f.Length;
byte[] writeMsg = Encoding.UTF8.GetBytes(roomId + "\r\n");
f.Write(writeMsg, 0, writeMsg.Length);
f.Close();
msgHandler = new MsgHandler(roomId);
sendMsg = JsonConvert.SerializeObject(msgHandler);
}
}
catch (Exception e)
{
Console.WriteLine("[Error]Exception happens during getting message from room " + roomId + ". P.S:It shouldn't be here. [ExceptionMsg]" + e.Message);
}
}
}
SendMessage(clientIP, SEND_MSG, sendMsg);
}
