fll.web.api.TournamentsServlet.java Source code

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Here is the source code for fll.web.api.TournamentsServlet.java

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/*
 * Copyright (c) 2013 High Tech Kids.  All rights reserved
 * HighTechKids is on the web at: http://www.hightechkids.org
 * This code is released under GPL; see LICENSE.txt for details.
 */

package fll.web.api;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Collection;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;

import net.mtu.eggplant.util.sql.SQLFunctions;

import org.apache.log4j.Logger;

import com.fasterxml.jackson.databind.ObjectMapper;

import fll.Tournament;
import fll.db.Queries;
import fll.util.LogUtils;
import fll.web.ApplicationAttributes;

/**
 * [Tournament]
 */
@WebServlet("/api/Tournaments/*")
public class TournamentsServlet extends HttpServlet {

    private static final Logger LOGGER = LogUtils.getLogger();

    @Override
    protected final void doGet(final HttpServletRequest request, final HttpServletResponse response)
            throws IOException, ServletException {
        final ServletContext application = getServletContext();

        final DataSource datasource = ApplicationAttributes.getDataSource(application);
        Connection connection = null;
        try {
            connection = datasource.getConnection();

            final ObjectMapper jsonMapper = new ObjectMapper();

            response.reset();
            response.setContentType("application/json");
            final PrintWriter writer = response.getWriter();

            final String pathInfo = request.getPathInfo();
            if (null != pathInfo && pathInfo.length() > 1) {
                final String tournamentStr = pathInfo.substring(1);

                int id;
                if ("current".equals(tournamentStr)) {
                    id = Queries.getCurrentTournament(connection);
                } else {
                    try {
                        id = Integer.parseInt(tournamentStr);
                    } catch (final NumberFormatException e) {
                        throw new RuntimeException("Error parsing tournament id " + tournamentStr, e);
                    }
                }

                final Tournament tournament = Tournament.findTournamentByID(connection, id);
                if (null != tournament) {
                    jsonMapper.writeValue(writer, tournament);
                    return;
                } else {
                    throw new RuntimeException("No tournament found with id " + id);
                }

            }

            final Collection<Tournament> tournaments = Tournament.getTournaments(connection);

            jsonMapper.writeValue(writer, tournaments);
        } catch (final SQLException e) {
            throw new RuntimeException(e);
        } finally {
            SQLFunctions.close(connection);
        }

    }

}