DecisionEngineServlet.java

package fr.inria.atlanmod.collaboro.web.servlets;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import fr.inria.atlanmod.collaboro.backend.CollaboroBackendFactory;
import fr.inria.atlanmod.collaboro.history.User;

@WebServlet(description = "Gives access to the decision engine in collaboro", urlPatterns = { "/decision" })
public class DecisionEngineServlet extends AbstractCollaboroServlet {
	private static final long serialVersionUID = 99L;

	@Override
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		addResponseOptions(response);

		// Checking the user is logged
		if(!isLogged(request)) {
			response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
			return;
		}
		HttpSession session = request.getSession(false);
		User historyUser = (User) session.getAttribute("user");
		String dsl = (String) session.getAttribute("dsl");

		response.setContentType("application/json");
		PrintWriter out = response.getWriter();

		CollaboroBackendFactory.getBackend(dsl, historyUser.getId()).launchDecision();

		out.print("{\"result\": \"success\" }");
	}

	@Override
	protected void doOptions(HttpServletRequest arg0, HttpServletResponse response) throws ServletException, IOException {
		addResponseOptions(response);
	}

}