Examples of java.util.concurrent.ScheduledExecutorService.scheduleAtFixedRate()

Class java.util.concurrent.ScheduledExecutorService

Examples of java.util.concurrent.ScheduledExecutorService.scheduleAtFixedRate()

java.util.concurrent.ScheduledExecutorService.scheduleAtFixedRate()
Creates and executes a periodic action that becomes enabled first after the given initial delay, and subsequently with the given period; that is executions will commence after {@code initialDelay} then {@code initialDelay+period}, then {@code initialDelay + 2 * period}, and so on. If any execution of the task encounters an exception, subsequent executions are suppressed. Otherwise, the task will only terminate via cancellation or termination of the executor. If any execution of this task takes longer than its period, then subsequent executions may start late, but will not concurrently execute. @param command the task to execute @param initialDelay the time to delay first execution @param period the period between successive executions @param unit the time unit of the initialDelay and period parameters @return a ScheduledFuture representing pending completion ofthe task, and whose {@code get()} method will throw anexception upon cancellation @throws RejectedExecutionException if the task cannot bescheduled for execution @throws NullPointerException if command is null @throws IllegalArgumentException if period less than or equal to zero

     * Due to the lack of contract in CDI guaranteeing when beans will be available, we use an
     * executor to search for the beans every 100ms until it finds them. Or, after a 25 seconds,
     * blow up if they don't become available.
     */
    final ScheduledExecutorService startupScheduler = Executors.newScheduledThreadPool(1);
    startupScheduler.scheduleAtFixedRate(new StartupCallback(beanManager, bus, startupScheduler, 25), 0, 100,
            TimeUnit.MILLISECONDS);


    for (final Class<?> remoteInterfaceType : managedTypes.getRemoteInterfaces()) {
      createRPCScaffolding(remoteInterfaceType, bus, beanManager);
    }

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        }


        for (int i = 0; i < plan.getNumReaders(); ++i) {
            MeasurementReader reader = new MeasurementReader(plan.getSimulationRate(), metrics, metricsServer,
                plan.getBatchSize() * i, plan.getBatchSize());
            readers.scheduleAtFixedRate(reader, 30, 30, TimeUnit.SECONDS);
        }


        try {
            Thread.sleep(Minutes.minutes(plan.getSimulationTime()).toStandardDuration().getMillis());
        } catch (InterruptedException e) {

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        }
        if (getCompletionInterval() > 0) {
            LOG.info("Using CompletionInterval to run every " + getCompletionInterval() + " millis.");
            ScheduledExecutorService scheduler = camelContext.getExecutorServiceStrategy().newScheduledThreadPool(this, "AggregateTimeoutChecker", 1);
            // trigger completion based on interval
            scheduler.scheduleAtFixedRate(new AggregationIntervalTask(), 1000L, getCompletionInterval(), TimeUnit.MILLISECONDS);
        }


        // start timeout service if its in use
        if (getCompletionTimeout() > 0 || getCompletionTimeoutExpression() != null) {
            LOG.info("Using CompletionTimeout to trigger after " + getCompletionTimeout() + " millis of inactivity.");

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        org.apache.cassandra.SchemaLoader.loadSchema();
        final AtomicLong count = new AtomicLong();
        final long start = System.currentTimeMillis();
        System.out.println(String.format(format, "seconds", "max_mb", "allocated_mb", "free_mb", "diffrence", "count"));
        scheduled.scheduleAtFixedRate(new Runnable() {
            long lastUpdate = 0;


            public void run() {
                Runtime runtime = Runtime.getRuntime();
                long maxMemory = mb(runtime.maxMemory());

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                             getConnectionsCreated());
                     log.debug("Total Number of Connections Closed       : " +
                             getConnectionsClosed());
                 }
         };
         scheduler.scheduleAtFixedRate(runnable, 60, 60, TimeUnit.SECONDS);
     }
}

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            //TODO: Identify Queuing mechanisms.
            digestQueues.put(s, new ConcurrentLinkedQueue<DigestEntry>());
        }
        final ScheduledExecutorService executorService =
                Executors.newSingleThreadScheduledExecutor();
        executorService.scheduleAtFixedRate(new Runnable() {
            public void run() {
                GregorianCalendar utc = new GregorianCalendar(SimpleTimeZone.getTimeZone("UTC"));
                Map<String, List<DigestEntry>> digestEntries =
                        new HashMap<String, List<DigestEntry>>();
                try {

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                    log.debug("Total Number of Connections Closed       : " +
                           connectionsClosed.get());
                }
            }
        };
        scheduler.scheduleAtFixedRate(runnable, 60, 60, TimeUnit.SECONDS);
    }
}

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                        statsLog.debug("Total Number of Active Transactions      : " + count +
                                sb.toString());
                    }
                }
            };
            scheduler.scheduleAtFixedRate(runnable, 60, 60, TimeUnit.SECONDS);
        }


        // This contains a list of all the managed connections.
        private static ThreadLocal<Map<String, ManagedRegistryConnection>>
                tManagedConnectionMap =

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                                records.get(Filter.RESTORE));
                    }
                }
            }
        };
        scheduler.scheduleAtFixedRate(runnable, 60, 60, TimeUnit.SECONDS);
    }


    private void incrementRecord(final String operation) {
        Runnable runnable = new Runnable() {
            public void run() {

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        }
        if (getCompletionInterval() > 0) {
            LOG.info("Using CompletionInterval to run every " + getCompletionInterval() + " millis.");
            ScheduledExecutorService scheduler = camelContext.getExecutorServiceStrategy().newScheduledThreadPool(this, "AggregateTimeoutChecker", 1);
            // trigger completion based on interval
            scheduler.scheduleAtFixedRate(new AggregationIntervalTask(), 1000L, getCompletionInterval(), TimeUnit.MILLISECONDS);
        }


        // start timeout service if its in use
        if (getCompletionTimeout() > 0 || getCompletionTimeoutExpression() != null) {
            LOG.info("Using CompletionTimeout to trigger after " + getCompletionTimeout() + " millis of inactivity.");

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