source: src/main/java/geniusweb/runserver/Info.java

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 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 {

        /**
         * @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.instance().writeValueAsString(info));
        }

}