protected override void sendJoinRequest()
{
Console.WriteLine("");
Console.WriteLine("-------------------------------------------");
Console.WriteLine("| <<< Join Calendar Network procedure >>> |");
Console.WriteLine("-------------------------------------------");
Console.Write("Please enter the IPv4 address of a know host that is a member of the calendar network currently : ");
String ipAddress = Reader.nextIPv4();
Console.Write("Please enter the port number of the host that you have entered its IP address [" + ipAddress + "] : ");
int port = Reader.nextInt(1025, 65535);
try{
HostUrl hostUrl = new HostUrl(port, ipAddress); //Set the destination host based on what the user entered
if (setDestinationHost(hostUrl))
{
String thisHostIPv4;
String thisHostUrl;
int thisHostPort;
try
{
thisHostIPv4 = LocalNet.IpAddress; //Generate the ipv4 address of this machine
thisHostUrl = "http://" + thisHostIPv4 + "/"; //Generate the Url of this machine based on its Ip
thisHostPort = HostsList.getFirstHostUrl().getPort(); //find out the current machine port
if (thisHostIPv4.Equals(ipAddress) && thisHostPort == port)
{
Console.WriteLine("You can not connect to yourself.\nThe IP address and the port number that you have entered is blonged to this machine.");
return;
}
host.MethodName = "CalendarNetwork.joinRequest";
host.Params.Clear();
host.Params.Add(thisHostUrl);
host.Params.Add(thisHostPort);
ServerStatus.signOnServer(); //if the joining fail it must change to signoff again
//String hostsListString = (String) host.execute("CalendarNetwork.joinRequest", params); //joinRequest function is placed in HostList.java file
response = host.Send(hostUrlAddress);
String hostsListString = (String)response.Value;
//
if (hostsListString == null)
{
Console.WriteLine("The joining process was failed on the known host that you have introduced.");
ServerStatus.signOffServer(); //because the joining fail it must change to signoff again
return;
}
else
{
String[] lines = hostsListString.Split("\n".ToCharArray());
if (lines[0].Equals("true"))
{
HostsList.addHost(hostUrl);//At first Add the known host to the hostList of this machine after a successful connection
}
else
{
Console.WriteLine("The joining process was failed on the known host that you have introduced.");
ServerStatus.signOffServer(); //because the joining fail it must change to signoff again
return;
}
//sending new request to synchronize the appointments' list
this.synchronizeDataBase(hostUrl);
Console.WriteLine("The synchronizing stage has finished.\nNow we register this host on other hosts!");
String nextHostUrl, nextHostPort;
bool result = false;
//host.MethodName = "CalendarNetwork.addMe"; //Added in C#
for (int index = 1; index < lines.Length; index++)
{
nextHostUrl = null;
nextHostPort = null;
//The response must be parse and other hosts come out from the String and propagate the current machine on all of them
//Must parse each address and send requests separately
//At first find the url of the next host
Regex regex = null;
Match matcher = null;
regex = new Regex("URL:\\[(.*?)\\]");
matcher = regex.Match(lines[index]);
if (matcher.Success)
{
nextHostUrl = matcher.Groups[1].Value;
}
//Then find the port number string
regex = new Regex("Port:\\[(.*?)\\]");
matcher = regex.Match(lines[index]);
if (matcher.Success)
{
nextHostPort = matcher.Groups[1].Value;
}
//Now connect to the next host and register
if (nextHostUrl != null && nextHostPort != null)
{
hostUrl = new HostUrl(nextHostUrl, Integer.parseInt(nextHostPort)); //Set the destination host based on what the user entered
if (setDestinationHost(hostUrl))
{
host.MethodName = "CalendarNetwork.addMe";
host.Params.Clear();
host.Params.Add(thisHostUrl);
host.Params.Add(thisHostPort);
try
{
response = host.Send(hostUrlAddress);
result = (bool)response.Value;
if (result)
{
HostsList.addHost(hostUrl);//Add next host of the list to the hostList of this machine
}
else
{
Console.WriteLine("Registeration of the current machine has failed on the host : [" + hostUrl.getFullUrl() + "]");
}
}
catch (System.Exception e)
{
Console.WriteLine("Registeration of the current machine has failed on the host : [" + hostUrl.getFullUrl() + "]");
Console.WriteLine(e.Message);
}
}
}
} //End of for
} //End of else
} catch (Exception e) {
Console.WriteLine(e.Message);
}
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}