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Commit 97f0ccb5 authored by rojas's avatar rojas
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assignments/src/MV3500Cohort2024JulySeptember/homework2/Romero/README.md
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......@@ -4,4 +4,16 @@
## Description
Modification to TCPExample4 to show the Message of the day (MOTD), depending on the day of the week.
The server side sets up a server listening for incoming connectios.
When a client attempts a connection to the server it sends the day of the week for the current connection.
Once received the day of the week, the server reply with a message according to the day of the week.
Phrases taken from
https://www.divein.com/everyday/monday-motivation-quotes/
assignments/src/MV3500Cohort2024JulySeptember/homework2/Romero/RomeroClientHW2.java
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......@@ -3,7 +3,6 @@ package MV3500Cohort2024JulySeptember.homework2.Romero;
import java.io.*;
import java.net.*;
import java.time.LocalDate;
import java.io.PrintWriter;
import java.time.DayOfWeek;
//import java.time.LocalTime; // conversion?
......@@ -30,8 +29,6 @@ public class RomeroClientHW2
{
// default constructor
}
// static String DESTINATION_HOST = "localhost";
// static int MAX_LOOP_COUNT = 4;
/**
* Program invocation, execution starts here
......@@ -44,128 +41,33 @@ public class RomeroClientHW2
LocalDate currentDate = LocalDate.now();
DayOfWeek day = currentDate.getDayOfWeek();
System.out.println("Current date: " + currentDate);
System.out.println("Day: " + day);
System.out.println("Today is: " + day + "\n");
System.out.println(RomeroClientHW2.class.getName() + " creating new socket ...");
try {
Socket clientConnectionSocket = new Socket("localhost", 2317);
try {
Socket clientConnectionSocket = new Socket("localhost", 2317);
in = new DataInputStream(clientConnectionSocket.getInputStream());
out = new DataOutputStream(clientConnectionSocket.getOutputStream());
in = new DataInputStream(clientConnectionSocket.getInputStream());
out = new DataOutputStream(clientConnectionSocket.getOutputStream());
//PrintWriter out = new PrintWriter(clientConnectionSocket.getOutputStream(), true);
out.writeUTF("New client has arrived!, conected on " + day);
out.writeUTF(day.name());
String mensaje = in.readUTF();
String mensaje = in.readUTF();
System.out.println(mensaje);
System.out.println(mensaje);
clientConnectionSocket.close();
clientConnectionSocket.close();
} catch (IOException e) {
System.out.println("Problem with " + RomeroClientHW2.class.getName() + " networking:networking:"); // describe what is happening
System.out.println("Error: " + e);
// Provide more helpful information to user if exception occurs due to running twice at one time
if (e instanceof java.net.BindException) {
System.out.println("*** Be sure to stop any other running instances of programs using this port!");
} catch (IOException e) {
System.out.println("Problem with " + RomeroClientHW2.class.getName() + " networking:networking:"); // describe what is happening
System.out.println("Error: " + e);
// Provide more helpful information to user if exception occurs due to running twice at one time
if (e instanceof java.net.BindException) {
System.out.println("*** Be sure to stop any other running instances of programs using this port!");
}
}
}
// try {
// System.out.println(TcpExample4Client.class.getName() + " start, loop " + MAX_LOOP_COUNT + " times");
// System.out.println("=======================================================");
//
// for (int loopCount = 1; loopCount <= MAX_LOOP_COUNT; loopCount++) // loop then exit
// {
// System.out.println(TcpExample4Client.class.getName() + " creating new socket #" + loopCount + "...");
//
// // We request an IP to connect to ("localhost") and
// // port number at that IP (2317). This establishes
// // a connection to that IP in the form of the Socket
// // object; the server uses a ServerSocket to wait for
// // connections.This particualar example is interacting
// // with what it expects is a server that writes a single text
// // line after 10 sec.
// long startTime = System.currentTimeMillis();
//
// // open a socket for each loop
// Socket socket = new Socket(DESTINATION_HOST, 2317);
//
// // Setup. Read the single line written by the server.
// // We'd do things a bit differently if many lines to be read
// // from the server, instead of one only.
// InputStream is = socket.getInputStream();
// Reader isr = new InputStreamReader(is);
// BufferedReader br = new BufferedReader(isr);
//
// String serverMessage = br.readLine(); // blocks
// long readTime = System.currentTimeMillis();
// long timeLength = readTime - startTime;
//
// System.out.println(TcpExample4Client.class.getName() + ": message received from server='" + serverMessage + "'");
// System.out.println(TcpExample4Client.class.getName() + ": time msec required for read=" + timeLength);
// System.out.println("=======================================================");
// // To push this further, launch multiple copies of TcpExample4Client simultaneously
// }
// System.out.println(TcpExample4Client.class.getName() + " complete");
// // main method now exits
// } catch (IOException e) {
// System.out.println("Problem with " + TcpExample4Client.class.getName() + " networking:networking:"); // describe what is happening
// System.out.println("Error: " + e);
// // Provide more helpful information to user if exception occurs due to running twice at one time
// if (e instanceof java.net.BindException) {
// System.out.println("*** Be sure to stop any other running instances of programs using this port!");
// }
// }
// try {
// System.out.println(TcpExample4Client.class.getName() + " start, loop " + MAX_LOOP_COUNT + " times");
// System.out.println("=======================================================");
//
// for (int loopCount = 1; loopCount <= MAX_LOOP_COUNT; loopCount++) // loop then exit
// {
// System.out.println(TcpExample4Client.class.getName() + " creating new socket #" + loopCount + "...");
//
// // We request an IP to connect to ("localhost") and
// // port number at that IP (2317). This establishes
// // a connection to that IP in the form of the Socket
// // object; the server uses a ServerSocket to wait for
// // connections.This particualar example is interacting
// // with what it expects is a server that writes a single text
// // line after 10 sec.
// long startTime = System.currentTimeMillis();
//
// // open a socket for each loop
// Socket socket = new Socket(DESTINATION_HOST, 2317);
//
// // Setup. Read the single line written by the server.
// // We'd do things a bit differently if many lines to be read
// // from the server, instead of one only.
// InputStream is = socket.getInputStream();
// Reader isr = new InputStreamReader(is);
// BufferedReader br = new BufferedReader(isr);
//
// String serverMessage = br.readLine(); // blocks
// long readTime = System.currentTimeMillis();
// long timeLength = readTime - startTime;
//
// System.out.println(TcpExample4Client.class.getName() + ": message received from server='" + serverMessage + "'");
// System.out.println(TcpExample4Client.class.getName() + ": time msec required for read=" + timeLength);
// System.out.println("=======================================================");
// // To push this further, launch multiple copies of TcpExample4Client simultaneously
// }
// System.out.println(TcpExample4Client.class.getName() + " complete");
// // main method now exits
// } catch (IOException e) {
// System.out.println("Problem with " + TcpExample4Client.class.getName() + " networking:networking:"); // describe what is happening
// System.out.println("Error: " + e);
// // Provide more helpful information to user if exception occurs due to running twice at one time
// if (e instanceof java.net.BindException) {
// System.out.println("*** Be sure to stop any other running instances of programs using this port!");
// }
// }
}
}
assignments/src/MV3500Cohort2024JulySeptember/homework2/Romero/RomeroServerHW2.java
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package MV3500Cohort2024JulySeptember.homework2.Romero;
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.DataOutputStream;
import java.io.IOException;
import java.net.*;
......@@ -34,8 +33,7 @@ public class RomeroServerHW2
* @param args command-line arguments
*/
public static void main(String[] args)
{
{
DataInputStream in;
DataOutputStream out;
......@@ -57,23 +55,31 @@ public class RomeroServerHW2
clientConnectionSocket = serverSocket.accept(); // block! until connected
connectionCount++; // unblocked, got another connection
in = new DataInputStream(clientConnectionSocket.getInputStream());
out = new DataOutputStream(clientConnectionSocket.getOutputStream());
String messageFromClient = in.readUTF();
System.out.println(messageFromClient);
out.writeUTF("Hello world from SERVER, you are the client numer: " + connectionCount);
System.out.println("Client connected on: " + messageFromClient);
out.writeUTF("**//*///*/*/*/*/*a/a//a*/*a/*a/*a/*: ");
String messageOTD = "";
// TODO option for the student, provide initial message *to the client*
// that we are handing off to a dispatch thread... because that is polite behavior.
// Plenty of code in Example3, we instead let our proxy thread
// TcpExample4HandlerThread introduce itself to the client.
switch(messageFromClient) {
case "MONDAY" -> messageOTD = "\n\"Mondays are the start of the work week which offer new beginnings 52 times a year!\"\n \t- David Dweck";
case "TUESDAY" -> messageOTD = "\n\"May your Tuesday be like your coffee: strong, smooth, and full of warmth.\"\n \t- Unknown";
case "WEDNESDAY" -> messageOTD = "\n\"Wednesdays will always bring smiles for the second half of the week.\"\n \t- Anthony T. Hincks";
case "THURSDAY" -> messageOTD = "\n\"Thursday is a day to admit your mistakes and try to improve.\"\n \t- Byron Pulsifer";
case "FRIDAY" -> messageOTD = "\n\"Every Friday, I like to high five myself for getting through another week\non little more than caffeine, willpower, and inappropriate humor.\"\n \t- Anonymous";
case "SATURDAY" -> messageOTD = "\n\"Saturday is a time to enjoy the small things in life, and to look back on the week with gratitude.\"\n \t- Unknown";
case "SUNDAY" -> messageOTD = "\n\"Sunday clears away the rust of the whole week.\"\n \t- Joseph Addison";
default -> messageOTD = "\nError while getting the day of the week";
}
out.writeUTF("\n**********************************************************************\n"
+ messageOTD +
"\n\n**********************************************************************\n\n"
+ "You are the client numer: " + connectionCount);
System.out.println("=============================================================");
System.out.println(RomeroServerHW2.class.getName() + ".handlerThread created for connection #" + connectionCount + "...");
......
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