    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/portal/owswatch/ServiceWatcherFactory.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005       Department of Geography, University of Bonn
    006     and
    007       lat/lon GmbH
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035    ----------------------------------------------------------------------------*/
    036
    037    package org.deegree.portal.owswatch;
    038
    039    import java.io.Serializable;
    040    import java.util.ArrayList;
    041    import java.util.Iterator;
    042    import java.util.List;
    043    import java.util.Map;
    044
    045    import org.deegree.framework.util.StringTools;
    046    import org.deegree.portal.owswatch.configs.GeneralConfig;
    047    import org.deegree.portal.owswatch.configs.OwsWatchConfig;
    048    import org.deegree.portal.owswatch.configs.OwsWatchConfigFactory;
    049    import org.deegree.portal.owswatch.configs.User;
    050
    051    /**
    052     * Instantiates an instance of ServiceWatcher with instances of ServiceConfiguration and ServiceLog inside as parsed
    053     * from the configurations file
    054     *
    055     * @author <a href="mailto:elmasry@lat-lon.de">Moataz Elmasry</a>
    056     * @author last edited by: $Author: jmays $
    057     *
    058     * @version $Revision: 20271 $, $Date: 2009-10-21 13:07:15 +0200 (Mi, 21. Okt 2009) $
    059     */
    060    public class ServiceWatcherFactory implements Serializable {
    061
    062        /**
    063         *
    064         */
    065        private static final long serialVersionUID = -7205941737006048817L;
    066
    067        private static String confFilePath = null;
    068
    069        private static String webinfPath = null;
    070
    071        private static ServicesConfigurationFactory servicesParser = null;
    072
    073        private static OwsWatchConfig conf = null;
    074
    075        private static ServiceWatcher watcher = null;
    076
    077        private static ServiceWatcherFactory factory = null;
    078
    079        private static String protDirPath = null;
    080
    081        private static EmailSender sender = null;
    082
    083        private static String servletAddr = null;
    084
    085        private ServiceWatcherFactory( String confFilePath, String webinfPath ) throws ConfigurationsException {
    086            ServiceWatcherFactory.confFilePath = confFilePath;
    087            ServiceWatcherFactory.webinfPath = webinfPath;
    088            parse();
    089        }
    090
    091        /**
    092         * @return ServiceWatcher
    093         * @throws ConfigurationsException
    094         */
    095        public ServiceWatcher getServiceWatcherInstance()
    096                                throws ConfigurationsException {
    097            return watcher;
    098        }
    099
    100        /**
    101         * @param confFilePath
    102         * @param webinfPath
    103         * @return An instance of ServiceWatchFactory using singletone pattern
    104         * @throws ConfigurationsException
    105         */
    106        public static ServiceWatcherFactory getInstance( String confFilePath, String webinfPath )
    107                                throws ConfigurationsException {
    108            if ( factory != null ) {
    109                return factory;
    110            }
    111            factory = new ServiceWatcherFactory( confFilePath, webinfPath );
    112            return factory;
    113        }
    114
    115        /**
    116         * @return ServiceWatcher
    117         * @throws ConfigurationsException
    118         */
    119        private static ServiceWatcher parse()
    120                                throws ConfigurationsException {
    121            try {
    122                conf = OwsWatchConfigFactory.createOwsWatchConfig( confFilePath, webinfPath );
    123            } catch ( Exception e ) {
    124                throw new ConfigurationsException( e.getLocalizedMessage() );
    125            }
    126
    127            servicesParser = new ServicesConfigurationFactory();
    128            List<ServiceConfiguration> services = parseServiceConfigurations( servicesParser, conf, webinfPath );
    129
    130            watcher = createServiceWatcher( conf, services );
    131            return watcher;
    132        }
    133
    134        private static ServiceWatcher createServiceWatcher( OwsWatchConfig conf, List<ServiceConfiguration> services )
    135                                throws ConfigurationsException {
    136
    137            servletAddr = conf.getGeneral().getServerAddress();
    138            servletAddr = StringTools.concat( 100, servletAddr, !servletAddr.endsWith( "/" ) ? "/" : "", "wprotocol" );
    139            StringBuilder builder = new StringBuilder( webinfPath );
    140            protDirPath = builder.append( conf.getGeneral().getProtFolderPath() ).toString();
    141
    142            ServiceWatcher watcher = new ServiceWatcher();
    143            GeneralConfig general = conf.getGeneral();
    144
    145            sender = new EmailSender( general.getMailFrom(), general.getMailServer(), getUserEmails( general.getUsers() ) );
    146
    147            Iterator<ServiceConfiguration> it = services.iterator();
    148            while ( it.hasNext() ) {
    149                ServiceConfiguration service = it.next();
    150                try {
    151                    ServiceLog serviceLog = new ServiceLog( protDirPath, service.getServiceid(), service.getServiceName(),
    152                                                            service.getServiceType(), servletAddr, sender );
    153                    watcher.addService( service, serviceLog );
    154                } catch ( Exception e ) {
    155                    throw new ConfigurationsException( e.getLocalizedMessage() );
    156                }
    157            }
    158            return watcher;
    159        }
    160
    161        /**
    162         * builds a file path from the given webinfPath and the services instances path located in OwsWatchconfig. after
    163         * calling this function, other values from the parser could be extracted like the prefix and the idSequence
    164         *
    165         * @param servicesParser
    166         * @param conf
    167         * @param webinfPath
    168         * @return List of ServiceConfiguration
    169         */
    170        private static List<ServiceConfiguration> parseServiceConfigurations( ServicesConfigurationFactory servicesParser,
    171                                                                              OwsWatchConfig conf, String webinfPath )
    172                                throws ConfigurationsException {
    173            String serviceAddr = conf.getGeneral().getServerAddress();
    174            serviceAddr = StringTools.concat( 100, serviceAddr, !serviceAddr.endsWith( "/" ) ? "/" : "", "wprotocol" );
    175
    176            StringBuilder builder = new StringBuilder( webinfPath );
    177            String servicesUrl = builder.toString() + conf.getGeneral().getServiceInstancesPath();
    178            try {
    179                return servicesParser.parseServices( servicesUrl );
    180            } catch ( Exception e ) {
    181                throw new ConfigurationsException( e.getLocalizedMessage() );
    182            }
    183        }
    184
    185        /**
    186         * @return Path of the configuration file
    187         */
    188        public String getConfFilePath() {
    189            return confFilePath;
    190        }
    191
    192        /**
    193         * @return WEB-INF folder path
    194         */
    195        public String getWebinfPath() {
    196            return webinfPath;
    197        }
    198
    199        /**
    200         * @return {@link OwsWatchConfigFactory}
    201         */
    202        public OwsWatchConfig getConf() {
    203            return conf;
    204        }
    205
    206        /**
    207         * @return {@link ServicesConfigurationFactory}
    208         */
    209        public ServicesConfigurationFactory getServicesParser() {
    210            return servicesParser;
    211        }
    212
    213        protected static List<String> getUserEmails( Map<String, User> users ) {
    214            // Adding users emails
    215            Iterator<String> it = users.keySet().iterator();
    216            List<String> list = new ArrayList<String>();
    217            while ( it.hasNext() ) {
    218                User user = users.get( it.next() );
    219                list.add( user.getEmail() );
    220            }
    221            return list;
    222        }
    223
    224        /**
    225         * @return Protocol directory path
    226         */
    227        public String getProtDirPath() {
    228            return protDirPath;
    229        }
    230
    231        /**
    232         * @return EmailSender
    233         */
    234        public EmailSender getSender() {
    235            return sender;
    236        }
    237
    238        /**
    239         * @return String
    240         */
    241        public String getServletAddr() {
    242            return servletAddr;
    243        }
    244    }