package geniusweb.runserver;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

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

import com.fasterxml.jackson.databind.ObjectMapper;

import geniusweb.protocol.NegoSettings;

/**
 * Contains incoming connection to run a Nego. runserver/runsession with the
 * JSON {@link NegoSettings} in the request header. After the session is
 * started, the new Nego ID is returned. This can be used to find back the log
 * files..
 */
@SuppressWarnings("serial")
public class Info extends HttpServlet {
	private final static ObjectMapper jackson = new ObjectMapper();

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
	 *      response).
	 * 
	 * @return the ID of the new started run. Or SC_BAD_REQUEST if the request
	 *         can not be processed.
	 */
	@Override
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("text/plain");
		// HACK but should be generizable easy in the future.
		Map<String, Object> info = new HashMap<>();
		info.put("version", getClass().getPackage().getImplementationVersion());
		response.getWriter().append(jackson.writeValueAsString(info));
	}

}