/*
* This file is part of gwap, an open platform for games with a purpose
*
* Copyright (C) 2013
* Project play4science
* Lehr- und Forschungseinheit für Programmier- und Modellierungssprachen
* Ludwig-Maximilians-Universität München
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gwap.game.quiz;
import gwap.game.quiz.action.QuizHighscoreBean;
import gwap.model.QuizHighscore;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.persistence.EntityManager;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.NotSupportedException;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import org.jboss.seam.Component;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.Startup;
import org.jboss.seam.annotations.intercept.BypassInterceptors;
import org.jboss.seam.servlet.ContextualHttpServletRequest;
import org.jboss.seam.transaction.Transaction;
import org.jboss.seam.web.AbstractResource;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
/**
* This servlet provides the highscores by returning a HttpServletRespone in
* JSON-Format
*
* @author Jonas Hölzler
*
*/
@Startup
@Scope(ScopeType.APPLICATION)
@Name("playNHighscoreCommunicationResource")
@BypassInterceptors
public class PlayNHighscoreCommunicationResource extends AbstractResource {
private HttpServletResponse response;
@In(create = true)
EntityManager entityManager;
private String action = "";
private String mode;
@Override
public String getResourcePath() {
return "/highscore";
}
@Override
public void getResource(final HttpServletRequest request,
final HttpServletResponse response) throws ServletException,
IOException {
new ContextualHttpServletRequest(request) {
@Override
public void process() throws IOException {
doWork(request, response);
}
}.run();
}
private void doWork(HttpServletRequest request, HttpServletResponse response)
throws IOException {
this.response = response;
QuizHighscore quizHighscore = readOutJSONData(request);
try {
Transaction.instance().begin();
QuizHighscoreBean quizHighscoreBean = (QuizHighscoreBean) Component
.getInstance("quizHighscoreBean");
int placeAllTime = 0;
int placeThisWeek = 0;
List<QuizHighscore> highscores = new ArrayList<QuizHighscore>();
if(action.equals("GetEvaluation")){
placeAllTime = quizHighscoreBean.getPlaceAllTime(quizHighscore.getScore()) + 1;
placeThisWeek = quizHighscoreBean.getPlaceThisWeek(quizHighscore.getScore()) + 1;
}else if(action.equals("Store")){
if (quizHighscore != null) {
quizHighscoreBean.addHighscore(quizHighscore);
}
}else if(action.equals("GetHighscores")){
if(mode.equals("All Time")){
highscores = quizHighscoreBean.getHighScoresAllTime();
}else{
highscores = quizHighscoreBean.getHighScoresThisWeek();
}
}
JSONObject jsonObject = createJSONForFeedback(highscores, placeAllTime, placeThisWeek);
sendJSONObject(jsonObject);
Transaction.instance().commit();
} catch (NotSupportedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (SystemException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (RollbackException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (HeuristicMixedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (HeuristicRollbackException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void sendJSONObject(JSONObject jsonObject) {
OutputStream outstream = null;
try {
response.setContentType("text/plain");
outstream = response.getOutputStream();
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(
outstream));
jsonObject.writeJSONString(out);
out.flush();
outstream.flush();
outstream.close();
} catch (IOException e) {
System.out.println("Exception!");
}
}
private JSONObject createJSONForFeedback(List<QuizHighscore> highscore, int placeAllTime, int placeThisWeek) {
JSONObject jsonResult = new JSONObject();
int platz = 0;
for (QuizHighscore h : highscore) {
Map<String, Object> m = new HashMap<String, Object>();
m.put("Name", h.getUsername());
m.put("PunkteAnzahl", h.getScore());
m.put("Joker", h.getJoker());
m.put("Frage", h.getQuestion());
jsonResult.put("Platz" + platz, m);
platz++;
}
jsonResult.put("Anzahl", platz);
jsonResult.put("placeAllTime", placeAllTime);
jsonResult.put("placeThisWeek", placeThisWeek);
return jsonResult;
}
private QuizHighscore readOutJSONData(HttpServletRequest request)
throws IOException {
QuizHighscore quizHighscore = null;
BufferedReader reader = request.getReader();
StringBuilder sb = new StringBuilder();
String line = reader.readLine();
while (line != null) {
sb.append(line + "\n");
line = reader.readLine();
}
reader.close();
String data = sb.toString();
if (data.equals("")) {
return null;
}
JSONParser parser = new JSONParser();
quizHighscore = new QuizHighscore();
quizHighscore.setCreated(new Date());
Object obj;
try {
obj = parser.parse(data);
JSONObject jsonObject = (JSONObject) obj;
for (Object k : jsonObject.keySet()) {
Object value = jsonObject.get(k);
String key = (String) k;
if (key.equals("Name")) {
quizHighscore.setUsername((String) value);
} else if (key.equals("PunkteAnzahl")) {
quizHighscore.setScore(((Long)value).intValue());
} else if (key.equals("Joker")) {
quizHighscore.setJoker(((Long)value).intValue());
} else if (key.equals("Frage")) {
quizHighscore.setQuestion(((Long)value).intValue());
} else if (key.equals("Action")){
this.action = (String) value;
} else if (key.equals("HighScoreMode")){
this.mode = (String) value;
}
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return quizHighscore;
}
}