ajout TP1
This commit is contained in:
commit
35f382698c
SSH key fingerprint:
SHA256:kZEpW8cMJ54PDeCvOhzreNr4FSh6R13CMGH/POoO8DI
BIN
TP1/Comanche.class
Normal file
BIN
TP1/Comanche.class
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44
TP1/Comanche.java
Normal file
44
TP1/Comanche.java
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import java.net.*;
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import java.io.*;
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public class Comanche implements Runnable {
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private Socket s;
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public Comanche(Socket s) {
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this.s = s;
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}
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public static void main(String[] args) throws IOException {
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ServerSocket s = new ServerSocket(Integer.parseInt(args[0]));
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while (true) {
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new Thread(new Comanche(s.accept())).start();
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}
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}
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public void run() {
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System.out.println("new connection : " + this.s);
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try {
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InputStreamReader in = new InputStreamReader(s.getInputStream());
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PrintStream out = new PrintStream(s.getOutputStream());
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String rq = new LineNumberReader(in).readLine();
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System.out.println(rq);
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if (rq.startsWith("GET ")) {
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File f = new File(rq.substring(5, rq.indexOf(' ', 4)));
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if (f.exists() && !f.isDirectory()) {
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InputStream is = new FileInputStream(f);
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byte[] data = new byte[is.available()];
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is.read(data);
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is.close();
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String s = new String(data);
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out.print("HTTP/1.0 200 OK\n\n" + s);
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} else {
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out.print("HTTP/1.0 404 Not Found\n\n <html>Document not found.</html>");
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}
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}
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out.close();
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s.close();
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} catch (IOException ex) {
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ex.printStackTrace();
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}
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}
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}
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BIN
TP1/LoadBalancer.class
Normal file
BIN
TP1/LoadBalancer.class
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85
TP1/LoadBalancer.java
Normal file
85
TP1/LoadBalancer.java
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@ -0,0 +1,85 @@
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.ServerSocket;
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import java.net.Socket;
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import java.util.Random;
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public class LoadBalancer extends Thread {
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static String hosts[] = { "localhost", "localhost" };
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static int ports[] = { 8081, 8082 };
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static int nbHosts = 2;
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static Random rand = new Random();
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static ServerSocket ss;
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Socket client_socket;
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public LoadBalancer(Socket socket) {
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this.client_socket = socket;
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}
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@Override
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public void run() {
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try {
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InputStream client_is = this.client_socket.getInputStream();
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OutputStream client_os = this.client_socket.getOutputStream();
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// on selectionne un serveur au pif
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int id = rand.nextInt(nbHosts);
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Socket server_socket = new Socket(hosts[id], ports[id]);
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System.out.println("Established connection with server " + id + " : " + server_socket);
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InputStream server_is = server_socket.getInputStream();
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OutputStream server_os = server_socket.getOutputStream();
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// création du buffer de transfert
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byte[] buffer = new byte[1024];
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int buffer_length;
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// transfère de la requête du client vers le server
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buffer_length = client_is.read(buffer);
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System.out.println("Received " + buffer + " from client");
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server_os.write(buffer, 0, buffer_length);
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System.out.println("Sent the buffer to server " + id);
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// transfère de la requête du server vers le client
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buffer_length = server_is.read(buffer);
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System.out.println("Received " + buffer + " from server");
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client_os.write(buffer, 0, buffer_length);
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System.out.println("Sent the buffer to client");
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// fermeture des streams server
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server_os.close();
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server_is.close();
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// fermeture des streams client
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client_os.close();
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client_is.close();
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// fermeture des sockets client et serer
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this.client_socket.close();
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server_socket.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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public static void main(String[] args) throws IOException {
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System.out.println("Début du load balancer");
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try {
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ss = new ServerSocket(8080);
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System.out.println("ServerSocket créé");
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while (true) {
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Socket new_client = ss.accept();
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System.out.println("Nouvelle connection: " + new_client);
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LoadBalancer ld = new LoadBalancer(new_client);
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ld.start();
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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ss.close();
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}
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}
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}
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88
TP1/LoadBalancer.java.bak
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88
TP1/LoadBalancer.java.bak
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.PrintStream;
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import java.net.ServerSocket;
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import java.net.Socket;
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import java.util.Random;
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public class LoadBalancer extends Thread {
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static String hosts[] = { "localhost", "localhost" };
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static int ports[] = { 8081, 8082 };
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static int nbHosts = 2;
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static Random rand = new Random();
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Socket client_socket;
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InputStream client_is;
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OutputStream client_os;
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InputStream server_is;
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OutputStream server_os;
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Socket server_socket;
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public LoadBalancer(Socket socket) {
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this.client_socket = socket;
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}
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@Override
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public void run() {
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try {
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client_is = this.client_socket.getInputStream();
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client_os = this.client_socket.getOutputStream();
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// on selectionne un serveur au pif
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int id = rand.nextInt(nbHosts);
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server_socket = new Socket(hosts[id], ports[id]);
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System.out.println("Established connection with server " + id + " : " + server_socket);
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server_is = server_socket.getInputStream();
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server_os = server_socket.getOutputStream();
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// création du buffer de transfert
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byte[] buffer = new byte[1024];
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int buffer_length;
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// transfère de la requête du client vers le server
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buffer_length = client_is.read(buffer);
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System.out.println("Received " + buffer + " from client");
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server_os.write(buffer, 0, buffer_length);
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System.out.println("Sent the buffer to server " + id);
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// transfère de la requête du server vers le client
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buffer_length = server_is.read(buffer);
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System.out.println("Received " + buffer + " from server");
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server_os.write(buffer, 0, buffer_length);
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System.out.println("Sent the buffer to client");
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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// fermeture des streams server
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server_os.close();
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server_is.close();
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// fermeture des streams client
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client_os.close();
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client_is.close();
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// fermeture des sockets client et serer
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this.client_socket.close();
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server_socket.close();
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}
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}
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public static void main(String[] args) {
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System.out.println("Début du load balancer");
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try {
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ServerSocket ss = new ServerSocket(8080);
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System.out.println("ServerSocket créé");
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while (true) {
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Socket new_client = ss.accept();
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System.out.println("Nouvelle connection: " + new_client);
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LoadBalancer ld = new LoadBalancer(new_client);
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ld.start();
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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210
TP1/TP-socket.html
Normal file
210
TP1/TP-socket.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="CONTENT-TYPE" content="text/html;
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charset=windows-1252">
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<title></title>
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<meta name="GENERATOR" content="OpenOffice.org 1.1.4 (Win32)">
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<meta name="CREATED" content="20051027;135681">
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<meta name="CHANGEDBY" content="Daniel Hagimont">
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<meta name="CHANGED" content="20051106;19023960">
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<meta name="ProgId" content="FrontPage.Editor.Document">
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<meta name="Originator" content="Microsoft Word 10">
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<meta name="Template" content="C:\PROGRAM FILES\MICROSOFT
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OFFICE\OFFICE\html.dot">
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<!--[if !mso]>
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<style>
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v\:* {behavior:url(#default#VML);}
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o\:* {behavior:url(#default#VML);}
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w\:* {behavior:url(#default#VML);}
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.shape {behavior:url(#default#VML);}
|
||||
</style>
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<![endif]--><!--[if gte mso 9]><xml>
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<w:WordDocument>
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||||
<w:Zoom>95</w:Zoom>
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||||
<w:GrammarState>Clean</w:GrammarState>
|
||||
<w:HyphenationZone>21</w:HyphenationZone>
|
||||
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
|
||||
</w:WordDocument>
|
||||
</xml><![endif]--><!--[if gte mso 10]>
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||||
<style>
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||||
/* Style Definitions */
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||||
table.MsoNormalTable
|
||||
{mso-style-name:"Tableau Normal";
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||||
mso-tstyle-rowband-size:0;
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||||
mso-tstyle-colband-size:0;
|
||||
mso-style-noshow:yes;
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||||
mso-style-parent:"";
|
||||
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
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||||
mso-para-margin:0cm;
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||||
mso-para-margin-bottom:.0001pt;
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||||
mso-pagination:widow-orphan;
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||||
font-size:10.0pt;
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||||
font-family:"Times New Roman"}
|
||||
</style>
|
||||
<![endif]--><!--[if gte mso 9]><xml>
|
||||
<o:shapelayout v:ext="edit">
|
||||
<o:idmap v:ext="edit" data="1"/>
|
||||
</o:shapelayout></xml><![endif]--><!--[if gte mso 9]>
|
||||
<xml><o:shapedefaults v:ext="edit" spidmax="1027"/>
|
||||
</xml><![endif]--><!--[if gte vml 1]><v:shapetype id="_x0000_t75"
|
||||
coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
|
||||
filled="f" stroked="f">
|
||||
<v:stroke joinstyle="miter"/>
|
||||
<v:formulas>
|
||||
<v:f eqn="if lineDrawn pixelLineWidth 0"/>
|
||||
<v:f eqn="sum @0 1 0"/>
|
||||
<v:f eqn="sum 0 0 @1"/>
|
||||
<v:f eqn="prod @2 1 2"/>
|
||||
<v:f eqn="prod @3 21600 pixelWidth"/>
|
||||
<v:f eqn="prod @3 21600 pixelHeight"/>
|
||||
<v:f eqn="sum @0 0 1"/>
|
||||
<v:f eqn="prod @6 1 2"/>
|
||||
<v:f eqn="prod @7 21600 pixelWidth"/>
|
||||
<v:f eqn="sum @8 21600 0"/>
|
||||
<v:f eqn="prod @7 21600 pixelHeight"/>
|
||||
<v:f eqn="sum @10 21600 0"/>
|
||||
</v:formulas>
|
||||
<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>
|
||||
<o:lock v:ext="edit" aspectratio="t"/>
|
||||
</v:shapetype><v:shape id="_x0000_s1025" type="#_x0000_t75" style='width:172.5pt;
|
||||
height:114pt'>
|
||||
<v:imagedata src="TP1_fichiers/image001.gif" o:title="logo_inpg"/>
|
||||
</v:shape><![endif]-->
|
||||
<style>
|
||||
<!--
|
||||
P { color: #000000 }
|
||||
A:link { color: #0000ff }
|
||||
A:visited { color: #800080 }
|
||||
-->
|
||||
</style>
|
||||
</head>
|
||||
<body dir="ltr" lang="fr-FR" link="#0000ff" text="#000000"
|
||||
vlink="#800080">
|
||||
<p align="center"><br>
|
||||
<b><font style="font-size: 20pt;" size="5">Cours Intergiciels<br>
|
||||
</font></b></p>
|
||||
<p align="center"><font style="font-size: 20pt;" size="5"><b>ENSEEIHT
|
||||
|
||||
|
||||
|
||||
– Département Informatique – 2ième année</b></font></p>
|
||||
<p align="center"><font style="font-size: 20pt;" size="5"><b>TP
|
||||
sockets</b></font></p>
|
||||
<p style="margin-bottom: 0cm;" align="center"><font size="3">Daniel
|
||||
Hagimont</font></p>
|
||||
<p style="margin-bottom: 0cm;" align="center"><font size="3">Daniel.Hagimont@enseeiht.fr</font></p>
|
||||
<p align="center"><br>
|
||||
<br>
|
||||
</p>
|
||||
<p style="margin-left: 1.27cm; text-indent: -0.64cm;"><a
|
||||
name="_Toc432321016"></a> <font face="Arial"><font
|
||||
style="font-size: 13pt;" size="3"><b>Objectif</b></font></font></p>
|
||||
<p style="margin-left: 1.27cm;">L'objectif de ce TP est l'initiation
|
||||
à la programmation répartie. Il consiste à programmer une
|
||||
application typique comportant de la répartition à l'aide de
|
||||
Socket. Vous devez implanter un répartiteur de charge (<i>Load
|
||||
Balancer</i>) qui reçoit des requêtes HTTP et les redirige de
|
||||
façon aléatoire vers un ensemble de serveurs Web. <br>
|
||||
</p>
|
||||
<p style="margin-left: 1.27cm;">Le début de cette classe est le
|
||||
suivant :<br>
|
||||
</p>
|
||||
<blockquote>
|
||||
<blockquote>
|
||||
<p class="western" style="margin-bottom: 0cm" lang="fr-FR"
|
||||
align="JUSTIFY"> <font face="Times, serif"><font
|
||||
style="font-size: 11pt" size="2"><i>public class
|
||||
LoadBalancer {</i></font></font></p>
|
||||
<font face="Times, serif"><font style="font-size: 11pt" size="2"><i>static
|
||||
|
||||
|
||||
String hosts[] = {"localhost", "localhost"};</i></font></font><br>
|
||||
<font face="Times, serif"><font style="font-size: 11pt" size="2"><i>static
|
||||
|
||||
|
||||
int ports[] = {8081,8082};</i></font></font><br>
|
||||
<font face="Times, serif"><font style="font-size: 11pt" size="2"><i>static
|
||||
|
||||
|
||||
int nbHosts = 2;</i></font></font><br>
|
||||
<font face="Times, serif"><font style="font-size: 11pt" size="2"><i>static
|
||||
|
||||
|
||||
Random rand = new Random();</i></font></font><br>
|
||||
<font face="Times, serif"><font style="font-size: 11pt" size="2"><i>…</i></font></font><br>
|
||||
<font face="Times, serif"><font style="font-size: 11pt" size="2"><i>}</i></font></font>
|
||||
</blockquote>
|
||||
</blockquote>
|
||||
<blockquote>
|
||||
<p class="western" style="margin-bottom: 0cm" lang="fr-FR"
|
||||
align="JUSTIFY"> A chaque réception d'une requête HTTP (une
|
||||
connexion TCP), <i>LoadBalancer</i> transfère la requête à un
|
||||
des serveurs web (les adresses de ces serveurs sont données par
|
||||
les tables <i>hosts</i> et <i>ports</i>) et <i>LoadBalancer</i>
|
||||
transfère le résultat de la requête à l'émetteur. Le choix du
|
||||
serveur Web est aléatoire (<i>rand.nextInt(nbHosts)</i> retourne
|
||||
un entier entre 0 et <i>nbHosts-1</i>). Pour être efficace, <i>LoadBalancer</i>
|
||||
est évidemment multi-threadé.</p>
|
||||
<p class="western" style="margin-bottom: 0cm" lang="fr-FR"
|
||||
align="JUSTIFY"> <br>
|
||||
</p>
|
||||
<p class="western" style="margin-bottom: 0cm" lang="fr-FR"
|
||||
align="JUSTIFY"> Pour la programmation des entrées/sorties, on
|
||||
utilisera :</p>
|
||||
</blockquote>
|
||||
<ul>
|
||||
<ul>
|
||||
<p class="western" style="margin-bottom: 0cm" lang="fr-FR"
|
||||
align="JUSTIFY"> <font style="font-size: 11pt" size="2"><i>-
|
||||
InputStream<br>
|
||||
</i></font><font
|
||||
size="2"><i></i></font><font style="font-size: 11pt"
|
||||
size="2"><i>- public int read(byte[] b); // bloquante,
|
||||
retourne le nombre de bytes lus</i></font></p>
|
||||
</ul>
|
||||
</ul>
|
||||
<ul>
|
||||
<ul>
|
||||
</ul>
|
||||
<ul>
|
||||
<p class="western" style="margin-bottom: 0cm" lang="fr-FR"
|
||||
align="JUSTIFY"> <font style="font-size: 11pt" size="2"><i>-
|
||||
OutputStream</i></font><font style="font-size: 11pt"
|
||||
size="2"><i><br>
|
||||
- public void
|
||||
write(byte[] b, int off, int len); // écrit les len bytes
|
||||
à la position off</i></font></p>
|
||||
</ul>
|
||||
<ul>
|
||||
<p class="western" style="margin-right: 0.56cm; margin-bottom:
|
||||
0cm; font-style: normal" lang="fr-FR" align="JUSTIFY"> et on
|
||||
suppose que les requêtes et réponses sont lues ou écrites en
|
||||
un seul appel de méthode avec un buffer de 1024 bytes. Notez
|
||||
que cette hypothèse n'est pas vérifieée dans la vrai vie.<br>
|
||||
</p>
|
||||
</ul>
|
||||
</ul>
|
||||
<br>
|
||||
<p></p>
|
||||
<p style="margin-left: 1.27cm; text-indent: -0.64cm;"><a
|
||||
name="_Toc432321016"></a> <font size="3"><font face="Arial"><b>Tests</b></font></font></p>
|
||||
<p style="margin-left: 1.27cm;"> <br>
|
||||
Pour tester, vous disposez d'un petit serveur Web (Comanche.java).<br>
|
||||
Vous pouvez en lancer 2 depuis 2 terminaux avec :<br>
|
||||
java
|
||||
Comanche 8081<br>
|
||||
java
|
||||
Comanche 8082<br>
|
||||
</p>
|
||||
<p style="margin-left: 1.27cm;">Lancez votre LoadBalancer sur la
|
||||
même machine (il accepte les connexions sur le port 8080).<br>
|
||||
</p>
|
||||
<p style="margin-left: 1.27cm;">Entrez dans un navigateur (sur la
|
||||
même machine) l'URL : localhost:8080/page.html<br>
|
||||
(la page page.html est sensée est présente dans le répertoire où
|
||||
vous avez lancé Comanche)<br>
|
||||
<br>
|
||||
</p>
|
||||
</body>
|
||||
</html>
|
||||
8
TP1/page.html
Normal file
8
TP1/page.html
Normal file
|
|
@ -0,0 +1,8 @@
|
|||
<html>
|
||||
<h1>
|
||||
Welcome in Comanche!
|
||||
</h1>
|
||||
<br>
|
||||
This is a test page to test the Comanche server.
|
||||
|
||||
</html>
|
||||
Loading…
Reference in a new issue