assignment.HTTPResponse.java Source code

Introduction

Here is the source code for assignment.HTTPResponse.java

Source

/*
 * 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 assignment;

import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;

/**
 *
 * @author Alpana
 */
public class HTTPResponse {
    public static int i = 0;
    static String input[][] = new String[100][3];
    static DateFormat df = new SimpleDateFormat("EEE MMM dd kk:mm:ss z yyyy", Locale.ENGLISH);

    public void serve(HTTPRequest httpRequest, OutputStream outputStream, Socket socket)
            throws IOException, ParseException, InterruptedException {
        PrintWriter pw = new PrintWriter(outputStream, true);
        JSONObject obj = new JSONObject();
        if (httpRequest.getHttpMethod().equals("GET")) {

            String[] url = (httpRequest.getResourceURI()).split("\\?");
            if (url[0].equals("/request")) {
                String ar1[] = url[1].split("&");
                String[] name1 = ar1[0].split("=");
                String connId = name1[1];
                String[] name2 = ar1[1].split("=");
                int timeout = Integer.parseInt(name2[1]);
                input[i][0] = connId;

                Date startTime = new Date();
                Date parsedDate = df.parse(startTime.toString());
                Date endTime = new Date(parsedDate.getTime() + (1 * timeout));
                input[i][1] = startTime.toString();
                input[i][2] = endTime.toString();
                i++;

                obj.put("status", "ok");
                try {
                    Thread.currentThread().sleep(timeout);
                } catch (InterruptedException ex) {
                    Thread.currentThread().interrupt();
                }
                pw.println(obj);
            } else if (url[0].equals("/serverStatus")) {
                Date now = new Date();
                long newDateTime = df.parse((new Date()).toString()).getTime();

                String result = "";
                JSONArray ja = new JSONArray();
                for (int j = 0; j < input.length; j++) {
                    if (input[j][0] != null) {
                        Date end = df.parse(input[j][2]);
                        if (end.compareTo(now) > 0) {
                            long endDateTime = (df.parse(input[j][2])).getTime();
                            long diff = ((endDateTime - newDateTime) / 1000);
                            JSONObject obj1 = new JSONObject();
                            obj1.put(input[j][0], diff);
                            result += obj1;
                        }
                    }
                }
                pw.println(result);
            } else {
                pw.println("Request not supported.");
            }
        } else if ((httpRequest.getHttpMethod().equals("PUT")) || (httpRequest.getHttpMethod().equals("POST"))) {
            if (httpRequest.getResourceURI().equals("/kill")) {
                boolean found = false;
                Date now = new Date();
                for (int j = 0; j < input.length; j++) {
                    if (input[j][0] != null && input[j][0].equals(httpRequest.getBody())) {
                        Date end = df.parse(input[j][2]);
                        if (end.compareTo(now) > 0) {
                            input[j][2] = now.toString();
                            found = true;
                        }
                    }
                }
                if (found) {
                    obj.put("status", "killed");
                } else {
                    obj.put("status", "Invalid connId " + httpRequest.getBody());
                }
                System.out.println(obj);
                pw.println(obj);
            } else {
                pw.println("Request not supported.");
            }
        }
        socket.close();
    }
}