source: contrib/psync/src/main/java/br/com/prognus/psync/items/manager/PIMCalendarManager.java @ 1009

/**
 *
 * @author Diorgenes Felipe Grzesiuk <diorgenes@prognus.com.br>
 * @copyright Copyright 2007-2008 Prognus
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 *
 * This program 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 Foobar; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package br.com.prognus.psync.items.manager;

import java.sql.Timestamp;
import java.util.List;

import br.com.prognus.psync.exception.EntityException;
import br.com.prognus.psync.exception.PIMDBAccessException;
import br.com.prognus.psync.items.dao.PIMCalendarDAO;
import br.com.prognus.psync.items.dao.PIMEntityDAO;
import br.com.prognus.psync.items.model.CalendarWrapper;

import com.funambol.common.pim.calendar.Calendar;
import com.funambol.framework.security.Sync4jPrincipal;
import com.funambol.framework.tools.merge.MergeResult;

public class PIMCalendarManager extends PIMEntityManager {

        // ------------------------------------------------------------- Private
        // data

        private PIMCalendarDAO dao;

        // -------------------------------------------------------------
        // Constructors

        /**
         * @see PIMEntityDAO#PIMEntityDAO(String, String)
         */
        public PIMCalendarManager(String jndiDataSourceName,
                        Sync4jPrincipal principal) {

                this.dao = new PIMCalendarDAO(jndiDataSourceName, principal);
                super.dao = this.dao;

                log.trace("Created new PIMCalendarManager for user ID "
                                + principal.getUsername());
        }

        // ----------------------------------------------------------- Public
        // methods

        /**
         * Updates a calendar.
         * 
         * @param uid
         *            the UID of the calendar
         * @param c
         *            a Calendar object
         * @param t
         *            the last update time that will be forced as the last update
         *            time of the updated calendar
         * @return the UID of the calendar (it should be the same as the argument)
         * @throws EntityException
         */
        public String updateItem(String uid, Calendar c, Timestamp t)
                        throws EntityException {

                log.trace("Updating calendar with ID " + uid
                                + " on the server, setting " + t
                                + " as its last update timestamp.");

                CalendarWrapper cw = new CalendarWrapper(uid, this.dao.getUserId(), c);
                cw.setLastUpdate(t);

                try {
                        this.dao.updateItem(cw);
                        return cw.getId();
                } catch (Exception e) {
                        throw new EntityException("Error updating item.", e);
                }
        }

        /**
         * @see PIMCalendarDAO#addItem(Calendar)
         */
        public String addItem(Calendar c, Timestamp t) throws EntityException {

                try {
                        CalendarWrapper cw = createCalendarWrapper(c);
                        cw.setLastUpdate(t);
                        this.dao.addItem(cw);
                        return cw.getId();
                } catch (PIMDBAccessException dbae) {
                        throw new EntityException("Error adding item.", dbae);
                }
        }

        /**
         * @see PIMCalendarDAO#getItem(String)
         */
        public CalendarWrapper getItem(String id) throws EntityException {
                try {
                        return this.dao.getItem(id);
                } catch (PIMDBAccessException dbae) {
                        throw new EntityException("Error getting item. " + dbae);
                }
        }

        /**
         * @see PIMCalendarDAO#getTwinItems(Calendar)
         */
        public List getTwins(Calendar c) throws EntityException {
                try {
                        return this.dao.getTwinItems(c);
                } catch (PIMDBAccessException dbae) {
                        throw new EntityException("Error getting twins of an item.", dbae);
                }
        }

        public boolean mergeItems(String serverCalendarID, Calendar clientCalendar,
                        Timestamp t) throws EntityException {

                log.info("\n\n=> PIMCalendarManager mergeItems begin");
                log.info("\n\n=> Merging server item " + serverCalendarID
                                + " with its client counterpart.");

                try {

                        CalendarWrapper serverCalendarWrapper = this.dao
                                        .getItem(serverCalendarID);
                        Calendar serverCalendar = serverCalendarWrapper.getCalendar();
                        MergeResult mergeResult = clientCalendar.merge(serverCalendar);

                        if (mergeResult.isSetBRequired()) {
                                updateItem(serverCalendarID, serverCalendar, t);
                        }

                        log.info("MergeResult: " + mergeResult);

                        return mergeResult.isSetARequired();

                } catch (Exception e) {

                        log.error("Error merging items.", e);
                        throw new EntityException("Error merging items. " + e);
                }
        }

        // ---------------------------------------------------------- Private
        // methods

        private CalendarWrapper createCalendarWrapper(Calendar c) {

                log.info("Created a new CalendarWrapper (UID not yet generated).");
                return new CalendarWrapper(null, this.dao.getUserId(), c);
        }
}