import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;

import java.net.URLConnection;

import java.util.ArrayList;

import java.net.*;

import java.io.*;

import java.util.*;

import java.text.*;

 

 

public class AdAstraApi {

 

 private String BaseUrl;

 private String ResponderUrl;

 private String responderParameters;

 

 /*

  *Constructor sets BaseUrl, ResponderUrl and ResponderParameters properties

  */

 public AdAstraApi() {

         this.BaseUrl = "http://app32mlm1/SG757108NOKSQL_1_1/";

         this.ResponderUrl = "~api/search/room?action=GET";

         this.responderParameters = "fields=RowNumber%2CId%2CRoomName%2CRoomDescription%2CRoomNumber%2CRoomTypeName%2CBuildingCode%2CBuildingName%2CCampusName%2CCapacity%2CBuildingRoomNumberRoomName%2CCanEdit%2CCanDelete&sortOrder=%2BBuildingRoomNumberRoomName";

 }

 

 public String Login() throws MalformedURLException, IOException {

         /*

          * Open an HTTP Connection to the Logon.ashx page

          */

         HttpURLConnection httpcon = (HttpURLConnection) ((new URL(BaseUrl+"Logon.ashx").openConnection()));

         httpcon.setDoOutput(true);

         httpcon.setRequestProperty("Content-Type", "application/json");

         httpcon.setRequestProperty("Accept", "application/json");

         httpcon.setRequestMethod("POST");

         httpcon.connect();

         /*

          * Output user credentials over HTTP Output Stream

          */

         byte[] outputBytes = "{'username': 'sysadmin', 'password':'apple'}".getBytes("UTF-8");

         OutputStream os = httpcon.getOutputStream();

         os.write(outputBytes);

         os.close();

         /*

          * Call Function setCookie and pass the HttpUrlConnection. Set Function

          * will return a Cookie String used to authenticate user.

          */

         return setCookie(httpcon);

 }

 

 public String setCookie(HttpURLConnection httpcon) {

         

         /*

          * Process the HTTP Response Cookies from successful credentials

          */

         String headerName;

         ArrayList<String> cookies = new ArrayList<String>();

         

         for (int i=1; (headerName = httpcon.getHeaderFieldKey(i))!=null; i++) {

                 

                 if (headerName.equals("Set-Cookie")&& httpcon.getHeaderField(i) != "null") {

                         cookies.add(httpcon.getHeaderField(i));

                 }

         }

         httpcon.disconnect();

         /*

          * Filter cookies, create Session_ID Cookie

          */

         String cookieName = cookies.get(0);

         String cookie2 = cookies.get(1);

         String cookie1 = cookieName.substring(cookieName.indexOf("="), cookieName.indexOf(";")+2);

         cookie2 = cookie2.substring(0, cookie2.indexOf(";"));

         cookieName = cookieName.substring(0 , cookieName.indexOf("="));

         String cookie = cookieName+cookie1+cookie2;

         return cookie;

 }

 

 public void ApiResponder(String cookie) throws MalformedURLException, IOException {

         /*

          * Create a new HTTP Connection request to responder, pass along Session_ID Cookie

          */

         HttpURLConnection httpcon = (HttpURLConnection) ((new URL(this.BaseUrl+this.ResponderUrl).openConnection()));

         httpcon.setDoOutput(true);

         httpcon.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

         httpcon.setRequestProperty("Accept", "application/json");

         httpcon.setRequestProperty("Cookie", cookie);

         httpcon.setRequestMethod("POST");

         httpcon.connect();

         

         byte[] outputBytes = responderParameters.getBytes("UTF-8");

         OutputStream os = httpcon.getOutputStream();

         os.write(outputBytes);

         os.close();

         

         /*

          * Read/Output response from server

          */

         

         BufferedReader inreader = new BufferedReader(new InputStreamReader(httpcon.getInputStream()));

         String decodedString;

         while ((decodedString = inreader.readLine()) != null) {

                 System.out.println(decodedString);

         }

         

         inreader.close();

         httpcon.disconnect();

 }

 

 public static void main(String[] args) throws Exception {

         AdAstraApi api = new AdAstraApi();

         System.out.println(api.Login());

         api.ApiResponder(api.Login());

 }

}