GetData.java

package alma.logoot.network;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class GetData
 */
public class GetData extends HttpServlet {
	private static final long serialVersionUID = 1L;
	private static ArrayList<PrintWriter> clients=new ArrayList<PrintWriter>();
	private static boolean first=true;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public GetData() {
		super();
	}

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		System.out.println("doGet : session=> "+request.getSession(true).getId());
		response.setHeader("pragma", "no-cache,no-store");
		response.setHeader("cache-control","no-cache,no-store,max-age=0,max-stale=0");
		response.setHeader("Accept-Charset", "utf-8");
		response.setContentType("text/event-stream;charset=utf-8;");
		response.setCharacterEncoding("UTF-8");
		clients.add(response.getWriter());
		if(first){
			first=false;
			String clientSentence;
			System.out.println("GetData : Creation de la socket sur le port 9990");
			ServerSocket welcomeSocket = new ServerSocket(NetworkServiceImpl.PORTSEND);
			while (true) {
				System.out.println("GetData : Acceptation de la socket");
				Socket connectionSocket = welcomeSocket.accept();
				BufferedReader inFromClient = new BufferedReader(
						new InputStreamReader(connectionSocket.getInputStream()));
				char[] buffer=new char[4096];
				inFromClient.read(buffer);
				clientSentence=(new String(buffer).trim().replaceAll("\n", "<br>"));
				for(PrintWriter out:clients){
					out.print("data: " + clientSentence + "\n\n");
					out.flush();
				}
			}
			
		}else{
			while(true){
				try {
					Thread.sleep(100000);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}
	}

}