fll.web.api.TournamentTeamsServlet.java Source code

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Here is the source code for fll.web.api.TournamentTeamsServlet.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 java.util.Map;

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

@WebServlet("/api/TournamentTeams/*")
public class TournamentTeamsServlet 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 Map<Integer, TournamentTeam> teamMap = Queries.getTournamentTeams(connection);
            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 teamNumberStr = pathInfo.substring(1);
                try {
                    final int teamNumber = Integer.parseInt(teamNumberStr);
                    LOGGER.info("Found team number: " + teamNumber);
                    final TournamentTeam team = teamMap.get(teamNumber);
                    if (null != team) {
                        jsonMapper.writeValue(writer, team);
                        return;
                    } else {
                        throw new RuntimeException("No team found with number " + teamNumber);
                    }
                } catch (final NumberFormatException e) {
                    throw new RuntimeException("Error parsing team number " + teamNumberStr, e);
                }
            }

            final Collection<TournamentTeam> teams = teamMap.values();

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

    }

}