traininfo/provider/ProviderFactory.java

package dk.thoerup.traininfo.provider;


public class ProviderFactory {
        private static DepartureProvider departureProvider = null;
        private static StationProvider stationProvider = null;
        private static TimetableProvider timetableProvider = null;
        private static MetroProvider metroProvider = null;
        
        private static final boolean DEBUG = false;
        
        //TODO: this one really doesn't belong here ... but where should it go ?
        public static void purgeOldEntries() {          
                synchronized (ProviderFactory.class) {
                        if (stationProvider != null ) { 
                                stationProvider.purgeOldEntries();
                        }
                        
                        if (departureProvider != null ) { 
                                departureProvider.purgeOldEntries();
                        }
                        
                        if (timetableProvider != null ) { 
                                timetableProvider.purgeOldEntries();
                        }
                        if (metroProvider != null ) {
                                metroProvider.purgeOldEntries();
                        }
                        
                }

        }
        
        public static DepartureProvider getDepartureProvider() {
                if (departureProvider == null) {
                        if (!DEBUG) {
                                departureProvider = new XmlDepartureProvider();
                        } else {
                                departureProvider = new DebugProvider();
                        }
                }
                
                return departureProvider;
        }
        
        public static StationProvider getStationProvider() {
                if (stationProvider == null) {
                        if (!DEBUG) {
                                stationProvider = new XmlStationProvider();
                        } else {
                                stationProvider = new DebugProvider();
                        }
                }
                
                return stationProvider;
        }
        
        public static TimetableProvider getTimetableProvider() {
                if (timetableProvider == null) {
                        if (!DEBUG) {
                                timetableProvider = new XmlTimetableProvider();
                        } else {
                                timetableProvider = new DebugProvider();
                        }
                }
                return timetableProvider;
        }

        public static MetroProvider getMetroProvider() {
                if (metroProvider == null) {
                        if (!DEBUG) {
                                metroProvider = new XmlMetroProvider();
                        } else {
                                metroProvider = new DebugProvider();
                        }
                }
                return metroProvider;
        }
}
1	torben	237	package dk.thoerup.traininfo.provider;
2
3
4	torben	1027
5
6	torben	253	public class ProviderFactory {
7			private static DepartureProvider departureProvider = null;
8			private static StationProvider stationProvider = null;
9	torben	352	private static TimetableProvider timetableProvider = null;
10	torben	1053	private static MetroProvider metroProvider = null;
11	torben	237
12	torben	365	private static final boolean DEBUG = false;
13	torben	363
14	torben	1160	//TODO: this one really doesn't belong here ... but where should it go ?
15	torben	1027	public static void purgeOldEntries() {
16			synchronized (ProviderFactory.class) {
17	torben	1160	if (stationProvider != null ) {
18			stationProvider.purgeOldEntries();
19	torben	1027	}
20
21	torben	1160	if (departureProvider != null ) {
22			departureProvider.purgeOldEntries();
23	torben	1027	}
24
25	torben	1160	if (timetableProvider != null ) {
26			timetableProvider.purgeOldEntries();
27	torben	1027	}
28	torben	1160	if (metroProvider != null ) {
29			metroProvider.purgeOldEntries();
30	torben	1053	}
31
32	torben	1027	}
33
34			}
35
36	torben	253	public static DepartureProvider getDepartureProvider() {
37			if (departureProvider == null) {
38	torben	363	if (!DEBUG) {
39			departureProvider = new XmlDepartureProvider();
40			} else {
41			departureProvider = new DebugProvider();
42			}
43	torben	237	}
44
45	torben	253	return departureProvider;
46	torben	237	}
47	torben	253
48			public static StationProvider getStationProvider() {
49			if (stationProvider == null) {
50	torben	363	if (!DEBUG) {
51			stationProvider = new XmlStationProvider();
52			} else {
53			stationProvider = new DebugProvider();
54			}
55	torben	253	}
56
57			return stationProvider;
58			}
59	torben	352
60			public static TimetableProvider getTimetableProvider() {
61			if (timetableProvider == null) {
62	torben	363	if (!DEBUG) {
63			timetableProvider = new XmlTimetableProvider();
64			} else {
65			timetableProvider = new DebugProvider();
66			}
67	torben	352	}
68			return timetableProvider;
69			}
70	torben	1053
71			public static MetroProvider getMetroProvider() {
72			if (metroProvider == null) {
73			if (!DEBUG) {
74			metroProvider = new XmlMetroProvider();
75			} else {
76			metroProvider = new DebugProvider();
77			}
78			}
79			return metroProvider;
80			}
81	torben	237	}