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package dk.thoerup.traininfo.provider;
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public class ProviderFactory {
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private static DepartureProvider departureProvider = null;
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private static StationProvider stationProvider = null;
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private static TimetableProvider timetableProvider = null;
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private static MetroProvider metroProvider = null;
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private static final boolean DEBUG = false;
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//TODO: this one really doesn't belong here ... but where should it go ?
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public static void purgeOldEntries() {
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synchronized (ProviderFactory.class) {
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if (stationProvider != null ) {
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stationProvider.purgeOldEntries();
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}
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if (departureProvider != null ) {
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departureProvider.purgeOldEntries();
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}
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if (timetableProvider != null ) {
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timetableProvider.purgeOldEntries();
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}
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if (metroProvider != null ) {
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metroProvider.purgeOldEntries();
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}
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}
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}
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public static DepartureProvider getDepartureProvider() {
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if (departureProvider == null) {
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if (!DEBUG) {
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departureProvider = new XmlDepartureProvider();
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} else {
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departureProvider = new DebugProvider();
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}
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}
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return departureProvider;
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}
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public static StationProvider getStationProvider() {
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if (stationProvider == null) {
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if (!DEBUG) {
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stationProvider = new XmlStationProvider();
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} else {
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stationProvider = new DebugProvider();
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}
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}
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return stationProvider;
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}
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public static TimetableProvider getTimetableProvider() {
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if (timetableProvider == null) {
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if (!DEBUG) {
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timetableProvider = new XmlTimetableProvider();
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} else {
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timetableProvider = new DebugProvider();
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}
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}
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return timetableProvider;
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}
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public static MetroProvider getMetroProvider() {
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if (metroProvider == null) {
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if (!DEBUG) {
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metroProvider = new XmlMetroProvider();
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} else {
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metroProvider = new DebugProvider();
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}
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}
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return metroProvider;
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}
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}
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