diff --git a/MV3500Cohort2021JulySeptember/homework1/FrankClient.java b/MV3500Cohort2021JulySeptember/homework1/FrankClient.java
deleted file mode 100644
index aa3fdc86cb7ea1e63fbe5120a56086d5b184b321..0000000000000000000000000000000000000000
--- a/MV3500Cohort2021JulySeptember/homework1/FrankClient.java
+++ /dev/null
@@ -1,100 +0,0 @@
-
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.net.Socket;
-
-/*
- * 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.
- */
-
-/**
- *
- * @author justi
- */
-
-
-
-public class FrankClient {
-
- /**
- */
-
- public final static String LOCALHOST = "0:0:0:0:0:0:0:1";
-
- /**
- * Program invocation, execution starts here
- * @param args command-line arguments
- * @throws java.lang.InterruptedException
- */
- public static void main(String[] args) throws InterruptedException {
-
- // Local variables/fields
- Socket socket = null;
- InputStream is;
- Reader isr;
- BufferedReader br;
- String serverMessage;
- int clientLoopCount = 0;
-
- try {
- while (true)
- {
- clientLoopCount++; // increment at beginning of loop for reliability
- System.out.println(FrankClient.class.getName() + " 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 a Socket
- // object; the server uses a ServerSocket to wait for
- // connections.
- socket = new Socket(LOCALHOST, 2318); // locohost?
-
- // Now hook everything up (i.e. set up the streams), Java style:
- is = socket.getInputStream();
- isr = new InputStreamReader(is);
- br = new BufferedReader(isr);
-
- // Read a single line written by the server. We'd
- // do things a bit differently if there were many lines to be read
- // from the server instead of one only.
- serverMessage = br.readLine();
- System.out.println("==================================================");
-
- System.out.print ("Client loop " + clientLoopCount + ": ");
- System.out.println("now we're talking!");
- System.out.println("The message the server sent was: '" + serverMessage + "'");
- // socket gets closed, either automatically/silently by this code (or possibly by the server)
-
- Thread.sleep(500l); // slow things down, for example 500l (long) = 500 msec
-
- } // end while(true) // infinite loops are dangerous, be sure to kill this process!
- }
- catch (IOException e)
- {
- System.err.println("Problem with " + FrankClient.class.getName() + " networking:"); // describe what is happening
- System.err.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.err.println("*** Be sure to stop any other running instances of programs using this port!");
- }
- }
- finally // occurs after any other activity when shutting down
- {
- try {
- if (socket != null)
- socket.close();
- } catch (IOException e) {}
-
- // program exit: tell somebody about that happening. Likely cause: server drops connection.
- System.out.println();
- System.out.println( "FrankClient.class.getName() + exit");
- }
- }
-}
diff --git a/MV3500Cohort2021JulySeptember/homework1/FrankServer.java b/MV3500Cohort2021JulySeptember/homework1/FrankServer.java
deleted file mode 100644
index ddbe0d62b7a2728ad4e160be0193e504d142c26b..0000000000000000000000000000000000000000
--- a/MV3500Cohort2021JulySeptember/homework1/FrankServer.java
+++ /dev/null
@@ -1,101 +0,0 @@
-import java.io.*;
-import java.net.*;
-
-/**
- * Very slightly more complex than example1, further modifying example2. The
- * only thing this does differently is introduce a loop into the response, so
- * you don't have to restart the program after one response. Also, it prints out
- * the socket pair the server sees. Run the program via telnet several times and
- * compare the socket pairs.
- *
- * telnet (nc) localhost 2318
- *
- * If you're sophisticated you can contact the instructor's computer while
- * running this program.
- *
- * telnet (nc) [ipNumberOfServerLaptop] 2317
- *
- * and have the instructor display the socket pairs received.
- *
- * @author mcgredo
- * @author brutzman
- */
-public class FrankServer {
-
- /**
- * Program invocation, execution starts here
- * If already compiled, can run using console in directory ../../build/classes/ by invoking \
- * java -classpath . TcpExamples.TcpExample3Server
- * @param args command-line arguments
- */
- 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.
- System.out.println(FrankServer.class.getName() + " has started..."); // it helps debugging to put this on console first
-
- ServerSocket serverSocket = new ServerSocket(2318);
- OutputStream os;
- PrintStream ps;
- InetAddress localAddress, remoteAddress;
- int localPort, remotePort;
- int serverLoopCount = 0;
-
- // Server is up and waiting (i.e. "blocked" or paused)
- // Loop, infinitely, waiting for client connections.
- // Stop the program somewhere else.
- while (true) {
-
- // block until connected to a client
- try (Socket clientConnectionSocket = serverSocket.accept())
- {
- serverLoopCount++; // increment at beginning of loop for reliability
-
- // Now hook everything up (i.e. set up the streams), Java style:
- os = clientConnectionSocket.getOutputStream();
- ps = new PrintStream(os);
- ps.println("This is response " + serverLoopCount + " produced by the server."); // this gets sent back to client!
-
- // Print some information locally about the Socket connection.
- // This includes the port and IP numbers on both sides (the socket pair).
- localAddress = clientConnectionSocket.getLocalAddress();
- remoteAddress = clientConnectionSocket.getInetAddress();
- localPort = clientConnectionSocket.getLocalPort();
- remotePort = clientConnectionSocket.getPort();
-
- System.out.print ("Server loop " + serverLoopCount + ": ");
-
- // 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(FrankServer.class.getName() + " socket pair showing host name, address, port:");
- System.out.println(" (( " +
- localAddress.getHostName() + "=" + localAddress.getHostAddress() + ", " + localPort + " ), ( " +
- remoteAddress.getHostName() + "=" + remoteAddress.getHostAddress() + ", " + remotePort + " ))");
-
- if ( localAddress.getHostName().equals( localAddress.getHostAddress()) ||
- remoteAddress.getHostName().equals(remoteAddress.getHostAddress()))
- System.out.println(" note HostName matches address if host has no DNS name");
-
- // Not/*i*/ce the use of flush() and try w/ resources. Without
- // the try w/ resources the Socket object may stay open for
- // a while after the client has stopped needing this
- // connection. try w/ resources explicitly ends the connection.
- ps.flush();
- // like it or not, you're outta here!
- }
- }
- } catch (IOException e) {
- System.err.println("Problem with " + FrankServer.class.getName() + " networking: " + e);
-
- // Provide more helpful information to user if exception occurs due to running twice at one time
- if (e instanceof java.net.BindException) {
- System.err.println("*** Be sure to stop any other running instances of programs using this port!");
- }
- }
- }
-}
diff --git a/MV3500Cohort2021JulySeptember/homework1/FrankTCPExample3Client.java b/MV3500Cohort2021JulySeptember/homework1/FrankTCPExample3Client.java
deleted file mode 100644
index 72a96f5e3812aa01ba7a5961d5ac2fff95987157..0000000000000000000000000000000000000000
--- a/MV3500Cohort2021JulySeptember/homework1/FrankTCPExample3Client.java
+++ /dev/null
@@ -1,100 +0,0 @@
-package MV3500Cohort2021JulySeptember.homework1;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.net.Socket;
-
-/*
- * 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.
- */
-
-/**
- *
- * @author justi
- */
-
-
-
-public class FrankTCPExample3Client {
-
- /**
- */
-
- public final static String LOCALHOST = "0:0:0:0:0:0:0:1";
-
- /**
- * Program invocation, execution starts here
- * @param args command-line arguments
- * @throws java.lang.InterruptedException
- */
- public static void main(String[] args) throws InterruptedException {
-
- // Local variables/fields
- Socket socket = null;
- InputStream is;
- Reader isr;
- BufferedReader br;
- String serverMessage;
- int clientLoopCount = 0;
-
- try {
- while (true)
- {
- clientLoopCount++; // increment at beginning of loop for reliability
- System.out.println(FrankTCPExample3Client.class.getName() + " 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 a Socket
- // object; the server uses a ServerSocket to wait for
- // connections.
- socket = new Socket(LOCALHOST, 2318); // locohost?
-
- // Now hook everything up (i.e. set up the streams), Java style:
- is = socket.getInputStream();
- isr = new InputStreamReader(is);
- br = new BufferedReader(isr);
-
- // Read a single line written by the server. We'd
- // do things a bit differently if there were many lines to be read
- // from the server instead of one only.
- serverMessage = br.readLine();
- System.out.println("==================================================");
-
- System.out.print ("Client loop " + clientLoopCount + ": ");
- System.out.println("now we're talking!");
- System.out.println("The message the server sent was: '" + serverMessage + "'");
- // socket gets closed, either automatically/silently by this code (or possibly by the server)
-
- Thread.sleep(500l); // slow things down, for example 500l (long) = 500 msec
-
- } // end while(true) // infinite loops are dangerous, be sure to kill this process!
- }
- catch (IOException e)
- {
- System.err.println("Problem with " + FrankTCPExample3Client.class.getName() + " networking:"); // describe what is happening
- System.err.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.err.println("*** Be sure to stop any other running instances of programs using this port!");
- }
- }
- finally // occurs after any other activity when shutting down
- {
- try {
- if (socket != null)
- socket.close();
- } catch (IOException e) {}
-
- // program exit: tell somebody about that happening. Likely cause: server drops connection.
- System.out.println();
- System.out.println( "FrankTCPExample3Client.class.getName() + exit");
- }
- }
-}
diff --git a/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/.gitkeep b/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/.gitkeep
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/client.py b/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/client.py
deleted file mode 100644
index 3bf853c4108b45a77639d375d7d5db0296124415..0000000000000000000000000000000000000000
--- a/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/client.py
+++ /dev/null
@@ -1,80 +0,0 @@
-#Adapted from https://github.com/realpython/materials/blob/master/multiconn-client.py
-import sys
-import socket
-import selectors
-import types
-import contextlib
-import os
-
-with contextlib.suppress(FileNotFoundError):
- os.remove('screenshot.png')
-
-sel = selectors.DefaultSelector()
-
-def start_connections(host, port, x3d_id):
- server_addr = (host, port)
- print("starting connection to", server_addr)
- sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
- sock.setblocking(False)
- sock.connect_ex(server_addr)
- events = selectors.EVENT_READ | selectors.EVENT_WRITE
- data = types.SimpleNamespace(
- connid=1,
- msg_total=sum([1]),
- recv_total=0,
- messages=[str(x3d_id).encode()],
- outb=b"",
- )
- sel.register(sock, events, data=data)
-
-
-def service_connection(key, mask):
- sock = key.fileobj
- data = key.data
- if mask & selectors.EVENT_READ:
- recv_data = sock.recv(1024) # Should be ready to read
- sock.settimeout(None)
- if not recv_data:
- print("closing connection", data.connid)
- sel.unregister(sock)
- sock.close()
- if recv_data:
- with open('screenshot.png','ab') as b:
- b.write(recv_data)
- data.recv_total += len(recv_data)
- print("received " + str(data.recv_total) + " image bytes from connection", data.connid)
-
-
-
-
- if mask & selectors.EVENT_WRITE:
- if not data.outb and data.messages:
- data.outb = data.messages.pop(0)
- if data.outb:
- print("sending", repr(data.outb), "to connection", data.connid)
- sent = sock.send(data.outb) # Should be ready to write
- data.outb = data.outb[sent:]
-
-
-if len(sys.argv) != 4:
- print("This program simulates the agent communicate process where a client requests a dynamically rendered X3D asset from the host.")
- print("usage:", sys.argv[0], "<host 192.168.86.225> <port 65500> <x3d asset number [0-14138] >")
- sys.exit(1)
-
-host, port, x3d_id = sys.argv[1:4]
-start_connections(host, int(port), int(x3d_id))
-
-try:
- while True:
- events = sel.select(timeout=1)
- if events:
- for key, mask in events:
- service_connection(key, mask)
- # Check for a socket being monitored to continue.
- if not sel.get_map():
- break
-except KeyboardInterrupt:
- print("caught keyboard interrupt, exiting")
-finally:
- sel.close()
-sel.close()
\ No newline at end of file
diff --git a/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/sequence.png b/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/sequence.png
deleted file mode 100644
index b00a72917b9696b38350f9b45c7bd011743ddf95..0000000000000000000000000000000000000000
Binary files a/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/sequence.png and /dev/null differ
diff --git a/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/server.py b/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/server.py
deleted file mode 100644
index 260a999e6ad95e668564e790573db6d6c9ae30de..0000000000000000000000000000000000000000
--- a/MV3500Cohort2021JulySeptember/homework1/Lentz_Python/server.py
+++ /dev/null
@@ -1,70 +0,0 @@
-#Adapted from https://github.com/realpython/materials/blob/master/multiconn-client.py
-
-import sys
-import socket
-import selectors
-import types
-import subprocess
-import time
-
-sel = selectors.DefaultSelector()
-
-
-def accept_wrapper(sock):
- conn, addr = sock.accept() # Should be ready to read
- print("accepted connection from", addr)
- conn.setblocking(False)
- data = types.SimpleNamespace(addr=addr, inb=b"", outb=b"")
- events = selectors.EVENT_READ | selectors.EVENT_WRITE
- sel.register(conn, events, data=data)
-
-
-def service_connection(key, mask):
- sock = key.fileobj
- data = key.data
- if mask & selectors.EVENT_READ:
- recv_data = sock.recv(1024) # Should be ready to read
- if recv_data:
- data.outb += recv_data
- else:
- print("closing connection to", data.addr)
- sel.unregister(sock)
- sock.close()
- if mask & selectors.EVENT_WRITE:
- if data.outb:
- fn = data.outb.decode('ascii')+'.x3d'
- print( "getting " + fn )
- subprocess.run(["wget", "https://nps.edu/x3d_repository/"+fn,"-O","x3d.x3d"])
- subprocess.run(["/castle_game_engine/bin/view3dscene", "--screenshot","0","screenshot.png","x3d.x3d"])
- png_bytes = open('screenshot.png','rb').read()
- print("sending png of length " + str(len(png_bytes)) + ' to ', data.addr)
- sent = sock.send(png_bytes) # Should be ready to write
- data.outb = png_bytes[sent:]
- #time.sleep(5)
- #subprocess.run(["rm", "screenshot.png","x3d.x3d"])
-
-
-if len(sys.argv) != 3:
- print("usage:", sys.argv[0], "<host> <port>")
- sys.exit(1)
-
-host, port = sys.argv[1], int(sys.argv[2])
-lsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-lsock.bind((host, port))
-lsock.listen()
-print("listening on", (host, port))
-lsock.setblocking(False)
-sel.register(lsock, selectors.EVENT_READ, data=None)
-
-try:
- while True:
- events = sel.select(timeout=None)
- for key, mask in events:
- if key.data is None:
- accept_wrapper(key.fileobj)
- else:
- service_connection(key, mask)
-except KeyboardInterrupt:
- print("caught keyboard interrupt, exiting")
-finally:
- sel.close()
\ No newline at end of file