Ejemplo n.º 1
0
        /// <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);
        }
Ejemplo n.º 2
0
        /// <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);
        }