org.projectforge.business.teamcal.servlet.TeamCalResponseServlet.java Source code

Introduction

Here is the source code for org.projectforge.business.teamcal.servlet.TeamCalResponseServlet.java

Source

/////////////////////////////////////////////////////////////////////////////
//
// Project ProjectForge Community Edition
//         www.projectforge.org
//
// Copyright (C) 2001-2014 Kai Reinhard (k.reinhard@micromata.de)
//
// ProjectForge is dual-licensed.
//
// This community edition is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as published
// by the Free Software Foundation; version 3 of the License.
//
// This community edition is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
// Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, see http://www.gnu.org/licenses/.
//
/////////////////////////////////////////////////////////////////////////////

package org.projectforge.business.teamcal.servlet;

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

import javax.servlet.ServletConfig;
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 org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.lang.StringUtils;
import org.projectforge.business.teamcal.event.TeamEventService;
import org.projectforge.business.teamcal.event.model.TeamEventAttendeeDO;
import org.projectforge.business.teamcal.event.model.TeamEventAttendeeStatus;
import org.projectforge.business.teamcal.event.model.TeamEventDO;
import org.projectforge.business.teamcal.service.CryptService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

/**
 * Response servlet for team calendar events.
 * 
 * @author Florian Blumenstein
 * 
 */
@WebServlet("/cal")
public class TeamCalResponseServlet extends HttpServlet {
    private static final long serialVersionUID = 8042634572943344080L;

    private static final org.apache.log4j.Logger log = org.apache.log4j.Logger
            .getLogger(TeamCalResponseServlet.class);

    @Autowired
    private TeamEventService teamEventService;

    private WebApplicationContext springContext;

    @Autowired
    private CryptService cryptService;

    @Override
    public void init(final ServletConfig config) throws ServletException {
        super.init(config);
        springContext = WebApplicationContextUtils.getRequiredWebApplicationContext(config.getServletContext());
        final AutowireCapableBeanFactory beanFactory = springContext.getAutowireCapableBeanFactory();
        beanFactory.autowireBean(this);
    }

    @Override
    protected void doGet(final HttpServletRequest req, final HttpServletResponse resp)
            throws ServletException, IOException {
        if (StringUtils.isBlank(req.getQueryString())) {
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            log.error("Bad request, no query string given.");
            return;
        }
        Map<String, String> decryptedParameters = cryptService.decryptParameterMessage(req.getQueryString());
        //Getting request status
        final String reqStatus = decryptedParameters.get("status");
        if (StringUtils.isBlank(reqStatus) == true) {
            log.warn("Bad request, request parameter 'status' not given.");
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            return;
        }
        TeamEventAttendeeStatus status = null;
        try {
            status = TeamEventAttendeeStatus.valueOf(reqStatus.toUpperCase());
        } catch (IllegalArgumentException e) {
            log.warn("Bad request, request parameter 'status' not valid: " + reqStatus);
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            return;
        }
        final TeamEventAttendeeStatus statusFinal = status;

        //Getting request event
        final String reqEventUid = decryptedParameters.get("uid");
        if (StringUtils.isBlank(reqEventUid) == true) {
            log.warn("Bad request, request parameter 'uid' not given.");
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            return;
        }
        TeamEventDO event = teamEventService.findByUid(reqEventUid);
        if (event == null) {
            log.warn("Bad request, request parameter 'uid' not valid: " + reqEventUid);
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            return;
        }

        //Getting request attendee
        final String reqEventAttendee = decryptedParameters.get("attendee");
        if (StringUtils.isBlank(reqEventAttendee) == true) {
            log.warn("Bad request, request parameter 'attendee' not given.");
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            return;
        }
        Integer attendeeId = null;
        try {
            attendeeId = Integer.parseInt(reqEventAttendee);
        } catch (NumberFormatException e) {
            log.warn("Bad request, request parameter 'attendee' not valid: " + reqEventAttendee);
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            return;
        }
        final TeamEventAttendeeDO eventAttendee = teamEventService.findByAttendeeId(attendeeId, false);
        if (eventAttendee != null) {
            event.getAttendees().stream().forEach(attendee -> {
                if (attendee.equals(eventAttendee) == true) {
                    attendee.setStatus(statusFinal);
                }
            });
            try {
                teamEventService.update(event, false);
            } catch (Exception e) {
                log.error("Bad request, exception while updating event: " + e.getMessage());
                resp.sendError(HttpStatus.SC_BAD_REQUEST);
                return;
            }
        } else {
            log.warn("Bad request, request parameter 'attendee' not valid: " + reqEventAttendee);
            resp.sendError(HttpStatus.SC_BAD_REQUEST);
            return;
        }

        resp.getOutputStream().print("SUCCESSFULLY RESPONDED: " + status);
    }

}