From 5c1323c7a66adabb814dee3db36064bd11830c29 Mon Sep 17 00:00:00 2001
From: garrettloeffelman <garrettloeffelman@172.20.155.92>
Date: Wed, 1 Aug 2018 09:44:59 -0700
Subject: [PATCH] LoeffelmanAssignment2Client/Server Skeleton
---
.../LoeffelmanAssignment2Client.java | 57 +++++++++++++++
.../LoeffelmanAssignment2Server.java | 72 +++++++++++++++++++
2 files changed, 129 insertions(+)
create mode 100644 deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Client.java
create mode 100644 deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Server.java
diff --git a/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Client.java b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Client.java
new file mode 100644
index 0000000000..590d660b60
--- /dev/null
+++ b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Client.java
@@ -0,0 +1,57 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package MV3500Cohort2018JulySeptember.homework2.Loeffelman;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.Socket;
+
+/**
+ *
+ * @author garrettloeffelman
+ */
+public class LoeffelmanAssignment2Client {
+
+ public final static String LOCALHOST = "0:0:0:0:0:0:0:1"; // String constant, i.e. 127.0.0.1
+
+ public static void main(String[] args) {
+
+ try {
+ while (true) {
+ System.out.println("creating socket");
+
+ // 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.
+ Socket socket = new Socket(LOCALHOST, 2317); // locohost?
+
+ // 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();
+ InputStreamReader isr = new InputStreamReader(is);
+ BufferedReader br = new BufferedReader(isr);
+
+ String serverMessage = br.readLine();
+ System.out.println("==================================================");
+ System.out.println("Now we're talking!");
+ System.out.println("The message the server sent was " + serverMessage);
+ // socket gets closed, either automatically/silently this code (or possibly by server)
+ } // end while(true)
+ }
+ catch (IOException e) {
+ System.out.println("Problem with client: "); // describe what is happening
+ System.out.println(e);
+ }
+ // program exit: tell somebody about that
+ System.out.println("client exit");
+ }
+
+}
diff --git a/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Server.java b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Server.java
new file mode 100644
index 0000000000..1d0db5018c
--- /dev/null
+++ b/deliverables/src/MV3500Cohort2018JulySeptember/homework2/Loeffelman/LoeffelmanAssignment2Server.java
@@ -0,0 +1,72 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package MV3500Cohort2018JulySeptember.homework2.Loeffelman;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.net.InetAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+/**
+ *
+ * @author garrettloeffelman
+ */
+public class LoeffelmanAssignment2Server {
+
+ @SuppressWarnings("ConvertToTryWithResources")
+ public static void main(String[] args)
+ {
+ try {
+ // ServerSocket waits for a connection from a client.
+ // Notice that it is outside the loop; ServerSocket
+ // needs to be made only once.
+
+ ServerSocket serverSocket = new ServerSocket(2317);
+
+ // Loop, infinitely, waiting for client connections.
+ // Stop the program somewhere else.
+ while (true)
+ {
+ Socket clientConnection = serverSocket.accept(); // block until connected
+ OutputStream os = clientConnection.getOutputStream();
+ PrintStream ps = new PrintStream(os);
+
+ ps.println("This was written by the server");
+
+ // Print some information locally about the Socket
+ // connection. This includes the port and IP numbers
+ // on both sides (the socket pair.)
+ InetAddress localAddress = clientConnection.getLocalAddress();
+ InetAddress remoteAddress = clientConnection.getInetAddress();
+
+ int localPort = clientConnection.getLocalPort();
+ int remotePort = clientConnection.getPort();
+
+ // My socket pair connection looks like this, to localhost:
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 ))
+ // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
+ //
+ // Why is the first IP/port the same, while the second set has
+ // different ports?
+ System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( "
+ + remoteAddress.toString() + ", " + remotePort + " ))");
+
+ // Notice the use of flush() and close(). Without
+ // the close() to Socket object may stay open for
+ // a while after the client has stopped needing this
+ // connection. Close() explicitly ends the connection.
+ ps.flush();
+ clientConnection.close(); // like it or not, you're outta here!
+ }
+ }
+ catch (IOException e) {
+ System.out.println("problem with networking");
+ }
+ }
+
+}
--
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