Mixing
How to handle a multiple UPD Request in a distributed System?
I am trying to make a distributed system kind of concept.
I need to accept 3 UDP replies from three different sender.
I can handle one at a time.But how can I handle 3 request at a time so that I can show best of 2 which are same out of 3 request and show it to client.
The UPD code for handling 1 request is given below in form of UDPsend() and UDPReply().
//This is the send method which is written in 3 different clients
static String UdpSendData(int serverPort,String sSendOutput)
{
DatagramSocket aSocket = null;
String messageReceived = null;
try {
String keywordSent="";
keywordSent=sSendOutput;
aSocket = new DatagramSocket();
byte mes = (keywordSent).getBytes();
InetAddress aHost = InetAddress.getByName("192.168.137.1");
DatagramPacket request = new DatagramPacket(mes, (keywordSent).length(), aHost, serverPort);
aSocket.send(request);
byte buffer = new byte[1000];
DatagramPacket reply = new DatagramPacket(buffer, buffer.length);
aSocket.receive(reply);
messageReceived=new String(reply.getData());
System.out.println(messageReceived);
} catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
e.printStackTrace();
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
return messageReceived;
}
//This is the receive method in which i wanted to have 3 replies
static void UPDRecieve() {
DatagramSocket aSocket = null;
try {
aSocket = new DatagramSocket(7777);
while (true) {
byte buffer = new byte[1000];
DatagramPacket request=null;
request= new DatagramPacket(buffer, buffer.length);
aSocket.receive(request);
String ReplyFromServer=new String(request.getData()); //Request received from server
DatagramPacket reply=null;
String Finalmessage="";
System.out.println(ReplyFromServer);
byte finalmessage = Finalmessage.getBytes();
reply= new DatagramPacket(finalmessage,Finalmessage.length(), request.getAddress(),request.getPort());
aSocket.send(reply);
}
}
catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
}
I need to get those 3 replies but what if the one of them is buggy or takes time to execute how would i deal with the suiation if one doesn't respond to anything and other two has given e different execution. In that case my system will go on halt.How would I wait for all 3 execution if their is delay also or bug also.If i get two replies i need to wait for the 3nd one how would i wait for 3nd reply.
java tcp distributed-system datagram udpclient
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
add a comment |
I am trying to make a distributed system kind of concept.
I need to accept 3 UDP replies from three different sender.
I can handle one at a time.But how can I handle 3 request at a time so that I can show best of 2 which are same out of 3 request and show it to client.
The UPD code for handling 1 request is given below in form of UDPsend() and UDPReply().
//This is the send method which is written in 3 different clients
static String UdpSendData(int serverPort,String sSendOutput)
{
DatagramSocket aSocket = null;
String messageReceived = null;
try {
String keywordSent="";
keywordSent=sSendOutput;
aSocket = new DatagramSocket();
byte mes = (keywordSent).getBytes();
InetAddress aHost = InetAddress.getByName("192.168.137.1");
DatagramPacket request = new DatagramPacket(mes, (keywordSent).length(), aHost, serverPort);
aSocket.send(request);
byte buffer = new byte[1000];
DatagramPacket reply = new DatagramPacket(buffer, buffer.length);
aSocket.receive(reply);
messageReceived=new String(reply.getData());
System.out.println(messageReceived);
} catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
e.printStackTrace();
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
return messageReceived;
}
//This is the receive method in which i wanted to have 3 replies
static void UPDRecieve() {
DatagramSocket aSocket = null;
try {
aSocket = new DatagramSocket(7777);
while (true) {
byte buffer = new byte[1000];
DatagramPacket request=null;
request= new DatagramPacket(buffer, buffer.length);
aSocket.receive(request);
String ReplyFromServer=new String(request.getData()); //Request received from server
DatagramPacket reply=null;
String Finalmessage="";
System.out.println(ReplyFromServer);
byte finalmessage = Finalmessage.getBytes();
reply= new DatagramPacket(finalmessage,Finalmessage.length(), request.getAddress(),request.getPort());
aSocket.send(reply);
}
}
catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
}
I need to get those 3 replies but what if the one of them is buggy or takes time to execute how would i deal with the suiation if one doesn't respond to anything and other two has given e different execution. In that case my system will go on halt.How would I wait for all 3 execution if their is delay also or bug also.If i get two replies i need to wait for the 3nd one how would i wait for 3nd reply.
java tcp distributed-system datagram udpclient
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
add a comment |
I am trying to make a distributed system kind of concept.
I need to accept 3 UDP replies from three different sender.
I can handle one at a time.But how can I handle 3 request at a time so that I can show best of 2 which are same out of 3 request and show it to client.
The UPD code for handling 1 request is given below in form of UDPsend() and UDPReply().
//This is the send method which is written in 3 different clients
static String UdpSendData(int serverPort,String sSendOutput)
{
DatagramSocket aSocket = null;
String messageReceived = null;
try {
String keywordSent="";
keywordSent=sSendOutput;
aSocket = new DatagramSocket();
byte mes = (keywordSent).getBytes();
InetAddress aHost = InetAddress.getByName("192.168.137.1");
DatagramPacket request = new DatagramPacket(mes, (keywordSent).length(), aHost, serverPort);
aSocket.send(request);
byte buffer = new byte[1000];
DatagramPacket reply = new DatagramPacket(buffer, buffer.length);
aSocket.receive(reply);
messageReceived=new String(reply.getData());
System.out.println(messageReceived);
} catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
e.printStackTrace();
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
return messageReceived;
}
//This is the receive method in which i wanted to have 3 replies
static void UPDRecieve() {
DatagramSocket aSocket = null;
try {
aSocket = new DatagramSocket(7777);
while (true) {
byte buffer = new byte[1000];
DatagramPacket request=null;
request= new DatagramPacket(buffer, buffer.length);
aSocket.receive(request);
String ReplyFromServer=new String(request.getData()); //Request received from server
DatagramPacket reply=null;
String Finalmessage="";
System.out.println(ReplyFromServer);
byte finalmessage = Finalmessage.getBytes();
reply= new DatagramPacket(finalmessage,Finalmessage.length(), request.getAddress(),request.getPort());
aSocket.send(reply);
}
}
catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
}
I need to get those 3 replies but what if the one of them is buggy or takes time to execute how would i deal with the suiation if one doesn't respond to anything and other two has given e different execution. In that case my system will go on halt.How would I wait for all 3 execution if their is delay also or bug also.If i get two replies i need to wait for the 3nd one how would i wait for 3nd reply.
java tcp distributed-system datagram udpclient
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
I am trying to make a distributed system kind of concept.
I need to accept 3 UDP replies from three different sender.
I can handle one at a time.But how can I handle 3 request at a time so that I can show best of 2 which are same out of 3 request and show it to client.
The UPD code for handling 1 request is given below in form of UDPsend() and UDPReply().
//This is the send method which is written in 3 different clients
static String UdpSendData(int serverPort,String sSendOutput)
{
DatagramSocket aSocket = null;
String messageReceived = null;
try {
String keywordSent="";
keywordSent=sSendOutput;
aSocket = new DatagramSocket();
byte mes = (keywordSent).getBytes();
InetAddress aHost = InetAddress.getByName("192.168.137.1");
DatagramPacket request = new DatagramPacket(mes, (keywordSent).length(), aHost, serverPort);
aSocket.send(request);
byte buffer = new byte[1000];
DatagramPacket reply = new DatagramPacket(buffer, buffer.length);
aSocket.receive(reply);
messageReceived=new String(reply.getData());
System.out.println(messageReceived);
} catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
e.printStackTrace();
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
return messageReceived;
}
//This is the receive method in which i wanted to have 3 replies
static void UPDRecieve() {
DatagramSocket aSocket = null;
try {
aSocket = new DatagramSocket(7777);
while (true) {
byte buffer = new byte[1000];
DatagramPacket request=null;
request= new DatagramPacket(buffer, buffer.length);
aSocket.receive(request);
String ReplyFromServer=new String(request.getData()); //Request received from server
DatagramPacket reply=null;
String Finalmessage="";
System.out.println(ReplyFromServer);
byte finalmessage = Finalmessage.getBytes();
reply= new DatagramPacket(finalmessage,Finalmessage.length(), request.getAddress(),request.getPort());
aSocket.send(reply);
}
}
catch (SocketException e) {
System.out.println("Socket: " + e.getMessage());
} catch (IOException e) {
System.out.println("IO: " + e.getMessage());
} finally {
if (aSocket != null)
aSocket.close();
}
}
I need to get those 3 replies but what if the one of them is buggy or takes time to execute how would i deal with the suiation if one doesn't respond to anything and other two has given e different execution. In that case my system will go on halt.How would I wait for all 3 execution if their is delay also or bug also.If i get two replies i need to wait for the 3nd one how would i wait for 3nd reply.
java tcp distributed-system datagram udpclient
java tcp distributed-system datagram udpclient
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
asked Nov 19 '18 at 21:35
Mark VimercaMark Vimerca
11
11
add a comment |
add a comment |
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