javax.ejb.Schedule Java Examples

@Schedule(second = "*/2", minute = "*", hour = "*", persistent = false)
public void sendStockInformation() {

	TextMessage message;

	try (Connection connection = jmsFactory.createConnection();
			Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
			MessageProducer producer = session.createProducer(jmsQueue)) {

		JsonObject stockInformation = Json.createObjectBuilder()
				.add("stockCode", stockCodes[ThreadLocalRandom.current().nextInt(stockCodes.length)])
				.add("price", ThreadLocalRandom.current().nextDouble(1.0, 150.0))
				.add("timestamp", Instant.now().toEpochMilli()).build();

		message = session.createTextMessage();
		message.setText(stockInformation.toString());

		producer.send(message);

	} catch (JMSException e) {
		e.printStackTrace();
	}
}
 

@Schedule(hour = "*", minute = "*", second = "*/30", persistent = false)
public void automaticCustomer() {
    final Optional<Seat> seatOptional = findFreeSeat();

    if (!seatOptional.isPresent()) {
        cancelTimers();
        logger.info("Scheduler gone!");
        return; // No more seats
    }

    final Seat seat = seatOptional.get();

    theatreBox.buyTicket(seat.getId());

    logger.info("Somebody just booked seat number " + seat.getId());
}
 

@Schedule(second="*/3", minute="*",hour="*", persistent=false)
public void play() {
	for (Map.Entry<String,TennisMatch> match : matches.entrySet()){
		TennisMatch m = match.getValue();
		if (m.isFinished()){
			//add a timer to restart a match after 20 secondes
			m.reset();
		}
    	//Handle point
		if (random.nextInt(2) == 1){
    		m.playerOneScores();
    	} else {
    		m.playerTwoScores();
    	}
    	MatchEndpoint.send(new MatchMessage(m), match.getKey());
    	//if there is a winner, send result and reset the game
    	if (m.isFinished()){
    		MatchEndpoint.sendBetMessages(m.playerWithHighestSets(), match.getKey(), true);
    	}
	}
}
 

/**
 * @throws NoSuchSeatException
 *             if this is throw here, then this is a programming error
 */
@Schedule(hour = "*", minute = "*/1", persistent = false)
public void automaticCustomer() throws NoSuchSeatException {
    final Optional<Seat> seatOptional = findFreeSeat();

    if (!seatOptional.isPresent()) {
        cancelTimers();
        logger.info("Scheduler gone!");
        return; // No more seats
    }

    final Seat seat = seatOptional.get();

    try {
        theatreBox.buyTicket(seat.getId());
    } catch (SeatBookedException e) {
        // do nothing, user booked this seat in the meantime
    }

    logger.info("Somebody just booked seat number " + seat.getId());
}
 

/**
 * @throws NoSuchSeatException
 *             if this is throw here, then this is a programming error
 */
@Schedule(hour = "*", minute = "*/1", persistent = false)
public void automaticCustomer() throws NoSuchSeatException {
    final Optional<Seat> seatOptional = findFreeSeat();

    if (!seatOptional.isPresent()) {
        cancelTimers();
        logger.info("Scheduler gone!");
        return; // No more seats
    }

    final Seat seat = seatOptional.get();

    try {
        theatreBox.buyTicket(seat.getId());
    } catch (SeatBookedException e) {
        // do nothing, user booked this seat in the meantime
    }

    logger.info("Somebody just booked seat number " + seat.getId());
}
 

@Schedules({
        @Schedule(month = "5", dayOfMonth = "20-Last", minute = "0", hour = "8"),
        @Schedule(month = "6", dayOfMonth = "1-10", minute = "0", hour = "8")
})
private void plantTheCorn() {
    // Dig out the planter!!!
}
 

@Schedule(second = "2", minute = "*", hour = "*", info = "SubBeanBInfo")
public void subBeanB(final javax.ejb.Timer timer) {
    synchronized (result) {
        assertEquals("SubBeanBInfo", timer.getInfo());
        result.add(Call.TIMEOUT);
    }
}
 

@Schedule(info = "badValue")
public void subBeanC(final javax.ejb.Timer timer) {
    synchronized (result) {
        assertEquals("SubBeanCInfo", timer.getInfo());
        result.add(Call.TIMEOUT);
    }
}
 

@javax.ejb.Schedules({
        @Schedule(minute = "5"),
        @Schedule(minute = "10")
})
public void scheduledJava7Repeatable() {
    this.count.incrementAndGet();
}
 

/**
 * The cache eviction notifications are not working. Using an interceptor is not working either. This method will be invoked every 30 seconds by the timer
 * service and will evict entries that are idle or expired.
 */
@Schedule(hour = "*", minute = "*", second = "*/30", persistent = false)
public void removeIdleOrExpired() {
    if (log.isDebugEnabled()) {
        log.debug("@Schedule - removeIdleOrExpired");
    }
    long now = System.currentTimeMillis();
    clearQueries(now);
    qlCache.clearQueryLogics(now, conf.getCallTimeInMS());
}
 

@Schedule(second = "*/5", minute = "*", hour = "*", persistent = false)
public void sendNewStockExchangeInformation() {
    JsonObject stockInformation = Json.createObjectBuilder()
            .add("stock", "DKE-42")
            .add("price", new BigDecimal(ThreadLocalRandom.current().nextDouble(250.00)).setScale(2, RoundingMode.DOWN))
            .build();

    StockExchangeEndpoint.broadcastMessage(stockInformation);
}
 

@Schedule(minute = "*", hour = "*", persistent = false)
public void updateApiBudget() {
    System.out.println("-- refreshing API budget for all users");

    List<User> userList = entityManager.createQuery("SELECT u FROM User u", User.class).getResultList();

    for (User user : userList) {
        user.setAmountOfApiCalls(0);
    }

    System.out.println("-- successfully refreshed API budget for all users");
}
 

/**
 * Method that is invoked every 30 minutes from the Timer service. This will occur
 */
@Schedule(hour = "*", minute = "*/30", persistent = false)
public void cleanup() {
    try (Connection con = ds.getConnection()) {
        
        String schema = con.getCatalog();
        if (null == schema || "".equals(schema))
            throw new RuntimeException("Unable to determine schema from connection");
        try (Statement s = con.createStatement();
                        ResultSet rs = s.executeQuery(GET_TABLES_TO_REMOVE.replace("?", schema).replace("XYZ",
                                        Integer.toString(cachedResultsCleanupConfiguration.getDaysToLive())))) {
            while (rs.next()) {
                String objectName = CachedResultsParameters.validate(rs.getString(1));
                // Drop the table
                String dropTable = "DROP TABLE " + objectName;
                try (Statement statement = con.createStatement()) {
                    statement.execute(dropTable);
                }
                removeCrqRow(objectName);
                
                String viewName = CachedResultsParameters.validate(objectName.replaceFirst("t", "v"));
                // Drop the associated view
                String dropView = "DROP VIEW " + viewName;
                try (Statement statement = con.createStatement()) {
                    statement.execute(dropView);
                }
                removeCrqRow(viewName);
            }
        }
    } catch (SQLException e) {
        log.error("Error cleaning up cached result objects: " + e.getMessage());
    }
}
 

@Schedule(second = "2", minute = "*", hour = "*", info = "SubBeanBInfo")
public void subBeanA(final javax.ejb.Timer timer) {
    synchronized (result) {
        assertEquals("SubBeanAInfo", timer.getInfo());
        result.add(Call.TIMEOUT);
    }
}
 

@Schedule(minute = "*/10")
@Lock(LockType.WRITE)
public void refreshCache() {
    cache = new HashMap<>();
    for (ConfigurationSetting configurationSetting : getAllConfigurationSettings()) {
        addToCache(configurationSetting);
    }
}
 

private List<Annotation> givenRefreshCacheAnnotations() {
    List<Annotation> result = new ArrayList<>();
    Annotation schedule = mock(Annotation.class);
    doReturn(Schedule.class).when(schedule).annotationType();
    doReturn("minute = \"*/10\"").when(schedule).toString();
    result.add(schedule);

    result.add(createLockAnnotation("LockType.WRITE"));
    return result;
}
 

@Schedule(dayOfWeek = "*", hour = "*", minute = "*", second =
        "*/30", year = "*", persistent = false)
public void backgroundProcessing() {
    ModelControllerClient client = null;
    try {
        client = ModelControllerClient.Factory.create(InetAddress.getByName("localhost"), 9990);

        final ModelNode operation = new ModelNode();
        operation.get("operation").set("read-resource");
        operation.get("include-runtime").set(true);
        final ModelNode address = operation.get("address");
        address.add("subsystem", "datasources");
        address.add("data-source", "ExampleDS");
        address.add("statistics", "pool");
        final ModelNode returnVal = client.execute(operation);

        final ModelNode node2 = returnVal.get("result");
        final String stringActiveCount = node2.get("ActiveCount").asString();

        if (stringActiveCount.equals("undefined")) {
            return; // Connection unused
        }
        int activeCount = Integer.parseInt(stringActiveCount);

        if (activeCount > 50) {
            alertAdministrator();
        }
    } catch (Exception exc) {
        logger.log(Level.SEVERE, "Exception !", exc);
    } finally {
        safeClose(client);
    }
}
 

@Schedule(hour = "*", minute = "*", second = "*/30", persistent = false)
public void automaticCustomer() {
    final Seat seat = findFreeSeat();

    if (seat == null) {
        cancelTimers();
        logger.info("Scheduler gone!");
        return; // No more seats
    }

    theatreBox.buyTicket(seat.getId());

    logger.info("Somebody just booked seat number " + seat.getId());
}
 

/**
 * This method is scheduled to run everyday at midnight and get all expired {@link FinancialPeriod} to mark them as
 * expired
 */
@Schedule(persistent = false, info = "Everyday at midnight")
public void markAsExpired() {

    final List<FinancialPeriod> periods = this.financialPeriodRepository.findByClosedOrderByIdentificationAsc(false);

    periods.stream()
            .filter(period -> LocalDate.now().compareTo(period.getEnd()) > 0)
            .forEach(period -> {
                period.setExpired(true);
                this.financialPeriodRepository.saveAndFlush(period);
            });
}
 

@Schedule(second = "0", minute = "30", hour = "*", persistent = false)
private void cleanData() {
    LOGGER.info("Cleaning data");
    deleteAll();
    createSomeData();
    LOGGER.info("Data reset");
}
 

@Schedule(hour="*",minute="*",second="*/5")
public void fireEvent(){
   
   ObservedData data = new ObservedData();
   data.setaString("Hello "+aNumber);
   data.setaNumber(aNumber++);
   
   event.fire(data);
   LOG.info("event fired!!");
}
 

@Schedule(second = "0/10", minute = "*", hour = "*")
public void fixText() {
   
   // Get a instance of the Statefull bean.
   if (null == statefullTalker) {
      statefullTalker = (StatefullBean) context
            .lookup("java:module/StatefullBean");
   }
   
   // Set the state of the Statefull bean.
   String text = "Hello " + counter++;
   LOG.info("Fix text " + text);
   statefullTalker.setText(text);
}
 

@Schedule(second = "5/10", minute = "*", hour = "*")
public void say() {
   
   // Uses the Statefull bean and release it.
   if (null != statefullTalker) {
      statefullTalker.sayText();
      statefullTalker = null;
   }
}
 

/**
 * This method is scheduled to run everyday at midnight and get all expired {@link FinancialPeriod} to mark them as
 * expired
 */
@Schedule(persistent = false, info = "Everyday at midnight")
public void markAsExpired() {

    final List<FinancialPeriod> periods = this.financialPeriodRepository.findByClosedOrderByIdentificationAsc(false);

    periods.stream()
            .filter(period -> LocalDate.now().compareTo(period.getEnd()) > 0)
            .forEach(period -> {
                period.setExpired(true);
                this.financialPeriodRepository.saveAndFlush(period);
            });
}
 

@Schedules({
        @Schedule(month = "9", dayOfMonth = "20-Last", minute = "0", hour = "8"),
        @Schedule(month = "10", dayOfMonth = "1-10", minute = "0", hour = "8")
})
private void harvestTheCorn() {
    // Dig out the combine!!!
}
 

@Schedule(hour = "3")
@Lock(LockType.WRITE)
private void refresh() {
    List<MDSService> newList = new ArrayList<>();

    for (MDSService service : mdsList) {
        try {
            service.refresh();
            newList.add(service);
        } catch (Exception e) {
            // if there's an exception, it won't get added to the new list
        }
    }
    mdsList = newList;
}
 

@Timed(name = "schedule")
@Schedule(hour = "*", minute = "*", second = "*", persistent = false)
public void scheduledMethod() {
    counter.count();
}
 

@Counted(name = "count", monotonic = true)
@Schedule(hour = "*", minute = "*", second = "*", persistent = false)
public void scheduledMethod() {
    counter.count();
}
 

@Schedule(second = "*", minute = "*", hour = "*")
public void sendHour() {
    dateEvent.fire(new Date());
}
 

@Metered(name = "meter")
@Schedule(hour = "*", minute = "*", second = "*", persistent = false)
public void scheduledMethod() {
    counter.count();
}