SmartDeviceClient/SmartProtocolStack/IPMapper.cs

using System;
using System.Net;
using System.Collections;

namespace GPRSWeb.SmartDeviceClient.SmartProtocolStack
{
        public class IPMapper : System.Collections.Specialized.ListDictionary {
                StackInterface thisStack;

                public IPMapper(StackInterface thisStack) : base() {
                        this.thisStack = thisStack;
                        // add server IP address
                        AddDefaultServerIP();
                        // add client IP address
                        AddDefaultClientIP();
                } 

                protected void AddDefaultServerIP() {
                        IPAddress serverIP = thisStack.settings.ServerIP;
                        thisStack.msgLog.Log("Server IP Address is {0}", serverIP.ToString());
                        this.AddMapping(0, serverIP);
                }

                protected void AddDefaultClientIP() {
                        IPAddress defaultAddress = thisStack.settings.ClientIP;
                        Console.Write("GPRS Phone (Client) Address is {0}", defaultAddress.ToString());
                        this.AddMapping(1, defaultAddress); 
                }
                        
                public IPAddress Lookup(ushort deviceID) {
                        if (Contains(deviceID)) {
                                return (IPAddress)this[deviceID];
                        } else {
                                throw new ApplicationException(String.Format("IP Mapping for Device {0} not found", deviceID));
                        }
                }

                public void AddMapping(ushort deviceID, IPAddress ipAddress) {
                        try {
                                this[deviceID] = ipAddress; // this way we update any old mappings
                        } catch (Exception ex) {
                                throw new ApplicationException("Unable to Add mapping to IP Mapper\n\r" + ex.ToString());
                        }
                }
        }
}

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