Example usage for java.util.concurrent ScheduledExecutorService scheduleAtFixedRate

Introduction

In this page you can find the example usage for java.util.concurrent ScheduledExecutorService scheduleAtFixedRate.

Prototype

public ScheduledFuture<?> scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit);

Source Link

Document

Submits a periodic action that becomes enabled first after the given initial delay, and subsequently with the given period; that is, executions will commence after initialDelay , then initialDelay + period , then initialDelay + 2 * period , and so on.

Usage

From source file:com.oneops.metrics.OneOpsMetrics.java

private void addIbatisMetrics() {
    ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();
    int initialDelay = 10;
    //scheduled with ibatis
    //getMap and register all meters with id and avg time .
    Runnable registerMetrics = () -> {
        Map<String, Stats> metrics = StatsPlugin.getStatsMap();
        try {// w ww .j  av  a  2  s .  c  o  m
            final SortedSet<String> registeredMetrics = ooMetricsRegistry.getNames();
            final long count = metrics.entrySet().parallelStream().map((e) -> {
                Meter m = ooMetricsRegistry.meter(e.getKey());
                if (m.getCount() != e.getValue().getNoOfCalls()) {
                    ooMetricsRegistry.meter(e.getKey()).mark(e.getValue().getNoOfCalls() - m.getCount());
                }
                if (!registeredMetrics.contains(e.getKey() + "_avg")) {
                    ooMetricsRegistry.register(e.getKey() + "_avg", (Gauge<Double>) e.getValue()::getAverage);
                }
                if (!registeredMetrics.contains(e.getKey() + "_max")) {
                    ooMetricsRegistry.register(e.getKey() + "_max", (Gauge<Long>) e.getValue()::getMaxTime);
                }
                return 1;
            }).count();

        } catch (Exception e) {
            logger.warn("There was an error in reporting metrics", e);
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Finished reporting metrics for ibatis" + metrics.size());
        }
    };

    executor.scheduleAtFixedRate(registerMetrics, initialDelay, 60, TimeUnit.SECONDS);
}

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From source file:org.wso2.carbon.repository.core.handlers.builtin.OperationStatisticsHandler.java

private static synchronized void initializeStatisticsLogging() {
    if (executor != null) {
        return;//from w w w .ja  va 2s.  co m
    }
    records = new HashMap<Method, Long>();
    executor = Executors.newCachedThreadPool();
    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            executor.shutdownNow();
        }
    });

    for (Method method : new Method[] { Method.GET, Method.PUT, Method.IMPORT, Method.MOVE, Method.COPY,
            Method.RENAME, Method.DELETE, Method.ADD_ASSOCIATION, Method.REMOVE_ASSOCIATION,
            Method.GET_ASSOCIATIONS, Method.GET_ALL_ASSOCIATIONS, Method.EXECUTE_QUERY, Method.RESOURCE_EXISTS,
            Method.DUMP, Method.RESTORE }) {
        records.put(method, 0l);
    }

    final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();

    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            scheduler.shutdownNow();
        }
    });

    Runnable runnable = new Runnable() {
        public void run() {
            if (records == null) {
                log.error("Unable to store operation statistics.");
            } else {
                synchronized (this) {
                    statsLog.debug("Total Number of get calls                : " + records.get(Method.GET));
                    statsLog.debug("Total Number of put calls                : " + records.get(Method.PUT));
                    statsLog.debug("Total Number of import calls             : " + records.get(Method.IMPORT));
                    statsLog.debug("Total Number of move calls               : " + records.get(Method.MOVE));
                    statsLog.debug("Total Number of copy calls               : " + records.get(Method.COPY));
                    statsLog.debug("Total Number of rename calls             : " + records.get(Method.RENAME));
                    statsLog.debug("Total Number of delete calls             : " + records.get(Method.DELETE));
                    statsLog.debug("Total Number of addAssociation calls     : "
                            + records.get(Method.ADD_ASSOCIATION));
                    statsLog.debug("Total Number of removeAssociation calls  : "
                            + records.get(Method.REMOVE_ASSOCIATION));
                    statsLog.debug("Total Number of getAssociations calls    : "
                            + records.get(Method.GET_ASSOCIATIONS));
                    statsLog.debug("Total Number of getAllAssociations calls : "
                            + records.get(Method.GET_ALL_ASSOCIATIONS));
                    statsLog.debug(
                            "Total Number of executeQuery calls       : " + records.get(Method.EXECUTE_QUERY));
                    statsLog.debug("Total Number of resourceExists calls     : "
                            + records.get(Method.RESOURCE_EXISTS));
                    statsLog.debug("Total Number of dump calls               : " + records.get(Method.DUMP));
                    statsLog.debug("Total Number of restore calls            : " + records.get(Method.RESTORE));
                }
            }
        }
    };

    scheduler.scheduleAtFixedRate(runnable, 60, 60, TimeUnit.SECONDS);
}

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From source file:org.wso2.carbon.registry.core.jdbc.handlers.builtin.OperationStatisticsHandler.java

private static synchronized void initializeStatisticsLogging() {
    if (executor != null) {
        return;//from w w w  . j a  v  a 2s.  c  om
    }
    records = new HashMap<String, Long>();
    executor = Executors.newCachedThreadPool();
    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            executor.shutdownNow();
        }
    });
    for (String s : new String[] { Filter.GET, Filter.PUT, Filter.IMPORT, Filter.MOVE, Filter.COPY,
            Filter.RENAME, Filter.DELETE, Filter.ADD_ASSOCIATION, Filter.REMOVE_ASSOCIATION,
            Filter.GET_ASSOCIATIONS, Filter.GET_ALL_ASSOCIATIONS, Filter.EXECUTE_QUERY, Filter.RESOURCE_EXISTS,
            Filter.DUMP, Filter.RESTORE }) {
        records.put(s, 0l);
    }
    final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            scheduler.shutdownNow();
        }
    });
    Runnable runnable = new Runnable() {
        public void run() {
            if (records == null) {
                log.error("Unable to store operation statistics.");
            } else {
                synchronized (this) {
                    statsLog.debug("Total Number of get calls                : " + records.get(Filter.GET));
                    statsLog.debug("Total Number of put calls                : " + records.get(Filter.PUT));
                    statsLog.debug("Total Number of import calls             : " + records.get(Filter.IMPORT));
                    statsLog.debug("Total Number of move calls               : " + records.get(Filter.MOVE));
                    statsLog.debug("Total Number of copy calls               : " + records.get(Filter.COPY));
                    statsLog.debug("Total Number of rename calls             : " + records.get(Filter.RENAME));
                    statsLog.debug("Total Number of delete calls             : " + records.get(Filter.DELETE));
                    statsLog.debug("Total Number of addAssociation calls     : "
                            + records.get(Filter.ADD_ASSOCIATION));
                    statsLog.debug("Total Number of removeAssociation calls  : "
                            + records.get(Filter.REMOVE_ASSOCIATION));
                    statsLog.debug("Total Number of getAssociations calls    : "
                            + records.get(Filter.GET_ASSOCIATIONS));
                    statsLog.debug("Total Number of getAllAssociations calls : "
                            + records.get(Filter.GET_ALL_ASSOCIATIONS));
                    statsLog.debug(
                            "Total Number of executeQuery calls       : " + records.get(Filter.EXECUTE_QUERY));
                    statsLog.debug("Total Number of resourceExists calls     : "
                            + records.get(Filter.RESOURCE_EXISTS));
                    statsLog.debug("Total Number of dump calls               : " + records.get(Filter.DUMP));
                    statsLog.debug("Total Number of restore calls            : " + records.get(Filter.RESTORE));
                }
            }
        }
    };
    scheduler.scheduleAtFixedRate(runnable, 60, 60, TimeUnit.SECONDS);
}

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From source file:tv.phantombot.PhantomBot.java

public void doRefreshGameWispToken() {

    long curTime = System.currentTimeMillis() / 1000L;

    if (!dataStore.exists("settings", "gameWispRefreshTime")) {
        dataStore.set("settings", "gameWispRefreshTime", String.valueOf(curTime));
    }/*from   www  .j  a va2 s.c o m*/

    ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
    service.scheduleAtFixedRate(() -> {
        Thread.currentThread().setName("tv.phantombot.PhantomBot::doRefreshGameWispToken");

        long curTime1 = System.currentTimeMillis() / 1000L;
        String lastRunStr = dataStore.GetString("settings", "", "gameWispRefreshTime");
        long lastRun = Long.parseLong(lastRunStr);
        if ((curTime1 - lastRun) > (10 * 24 * 60 * 60)) {
            // 10 days, token expires every 35.
            dataStore.set("settings", "gameWispRefreshTime", String.valueOf(curTime1));
            updateGameWispTokens(GameWispAPIv1.instance().refreshToken());
        }
    }, 0, 1, TimeUnit.DAYS);
}

---

From source file:tv.phantombot.PhantomBot.java

private void doCheckPhantomBotUpdate() {
    ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
    service.scheduleAtFixedRate(() -> {
        Thread.currentThread().setName("tv.phantombot.PhantomBot::doCheckPhantomBotUpdate");

        String[] newVersionInfo = GitHubAPIv3.instance().CheckNewRelease();
        if (newVersionInfo != null) {
            try {
                Thread.sleep(6000);
                print("");
                print("New PhantomBot Release Detected: " + newVersionInfo[0]);
                print("Release Changelog: https://github.com/PhantomBot/PhantomBot/releases/"
                        + newVersionInfo[0]);
                print("Download Link: " + newVersionInfo[1]);
                print("A reminder will be provided in 24 hours!");
                print("");
            } catch (InterruptedException ex) {
                com.gmt2001.Console.err.printStackTrace(ex);
            }//from   ww w  .  j  a v a2s.  c  om

            if (webEnabled) {
                dataStore.set("settings", "newrelease_info", newVersionInfo[0] + "|" + newVersionInfo[1]);
            }
        } else {
            dataStore.del("settings", "newrelease_info");
        }
    }, 0, 24, TimeUnit.HOURS);
}

---

From source file:tv.phantombot.PhantomBot.java

/**
 * Backup the database, keeping so many days.
 *//*from  w ww.  java  2 s  .co  m*/
private void doBackupSQLiteDB() {

    if (!dataStoreType.equals("sqlite3store")) {
        return;
    }

    ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
    service.scheduleAtFixedRate(() -> {
        Thread.currentThread().setName("tv.phantombot.PhantomBot::doBackupSQLiteDB");

        SimpleDateFormat datefmt = new SimpleDateFormat("ddMMyyyy.hhmmss");
        datefmt.setTimeZone(TimeZone.getTimeZone(timeZone));
        String timestamp = datefmt.format(new Date());

        dataStore.backupSQLite3("phantombot.auto.backup." + timestamp + ".db");

        try {
            Iterator dirIterator = FileUtils.iterateFiles(new File("./dbbackup"),
                    new WildcardFileFilter("phantombot.auto.*"), null);
            while (dirIterator.hasNext()) {
                File backupFile = (File) dirIterator.next();
                if (FileUtils.isFileOlder(backupFile,
                        (System.currentTimeMillis() - (long) (backupSQLiteKeepDays * 864e5)))) {
                    FileUtils.deleteQuietly(backupFile);
                }
            }
        } catch (Exception ex) {
            com.gmt2001.Console.err.println("Failed to clean up database backup directory: " + ex.getMessage());
        }
    }, 0, backupSQLiteHourFrequency, TimeUnit.HOURS);
}

---

From source file:me.gloriouseggroll.quorrabot.Quorrabot.java

public void doRefreshGameWispToken() {

    long curTime = System.currentTimeMillis() / 1000l;

    if (!dataStoreObj.exists("settings", "gameWispRefreshTime")) {
        dataStoreObj.set("settings", "gameWispRefreshTime", String.valueOf(curTime));
    }/*from   ww w.j av  a 2 s  .co m*/

    ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
    service.scheduleAtFixedRate(new Runnable() {
        @Override
        public void run() {
            long curTime = System.currentTimeMillis() / 1000l;
            String lastRunStr = dataStoreObj.GetString("settings", "", "gameWispRefreshTime");

            long lastRun = Long.parseLong(lastRunStr);
            if ((curTime - lastRun) > (10 * 24 * 60 * 60)) { // 10 days, token expires every 35.
                dataStoreObj.set("settings", "gameWispRefreshTime", String.valueOf(curTime));
                updateGameWispTokens(GameWispAPI.instance().refreshToken());
            }
        }
    }, 0, 1, TimeUnit.DAYS);
}

---

From source file:com.emc.storageos.systemservices.impl.upgrade.CoordinatorClientExt.java

/**
 * Initialization method.//  w  w w .  j  av a  2  s  .co m
 * On standby site, start a thread to monitor local coordinatorsvc status
 * On active site, start a thread to monitor db quorum of each standby site
 */
public void start() {
    if (drUtil.isStandby()) {
        _log.info("Start monitoring local coordinatorsvc status on standby site");
        ScheduledExecutorService exe = Executors.newScheduledThreadPool(1, new ThreadFactory() {
            @Override
            public Thread newThread(Runnable r) {
                return new Thread(r, "CoordinatorsvcMonitor");
            }
        });
        // delay for a period of time to start the monitor. For DR switchover, we stop original active, then start new active. 
        // So the original active may not see the new active immediately after reboot
        exe.scheduleAtFixedRate(coordinatorSvcMonitor, 3 * COODINATOR_MONITORING_INTERVAL,
                COODINATOR_MONITORING_INTERVAL, TimeUnit.SECONDS);
    } else {
        _log.info("Start monitoring db quorum on all standby sites");
        ScheduledExecutorService exe = Executors.newScheduledThreadPool(1, new ThreadFactory() {
            @Override
            public Thread newThread(Runnable r) {
                return new Thread(r, "DbsvcQuorumMonitor");
            }
        });
        exe.scheduleAtFixedRate(new DbsvcQuorumMonitor(getMyNodeId(), _coordinator, dbCommonInfo), 0,
                DB_MONITORING_INTERVAL, TimeUnit.SECONDS);
    }
}

---

From source file:me.mast3rplan.phantombot.PhantomBot.java

public void doRefreshGameWispToken() {

    long curTime = System.currentTimeMillis() / 1000L;

    if (!dataStore.exists("settings", "gameWispRefreshTime")) {
        dataStore.set("settings", "gameWispRefreshTime", String.valueOf(curTime));
    }//  w w  w .  jav a2s  . c o  m

    ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
    service.scheduleAtFixedRate(() -> {
        long curTime1 = System.currentTimeMillis() / 1000L;
        String lastRunStr = dataStore.GetString("settings", "", "gameWispRefreshTime");
        long lastRun = Long.parseLong(lastRunStr);
        if ((curTime1 - lastRun) > (10 * 24 * 60 * 60)) {
            // 10 days, token expires every 35.
            dataStore.set("settings", "gameWispRefreshTime", String.valueOf(curTime1));
            updateGameWispTokens(GameWispAPIv1.instance().refreshToken());
        }
    }, 0, 1, TimeUnit.DAYS);
}

---

From source file:me.mast3rplan.phantombot.PhantomBot.java

private void doCheckPhantomBotUpdate() {
    ScheduledExecutorService service = Executors.newSingleThreadScheduledExecutor();
    service.scheduleAtFixedRate(() -> {
        String[] newVersionInfo = GitHubAPIv3.instance().CheckNewRelease();
        if (newVersionInfo != null) {
            try {
                Thread.sleep(6000);
                print("");
                print("New PhantomBot Release Detected: " + newVersionInfo[0]);
                print("Release Changelog: https://github.com/PhantomBot/PhantomBot/releases/"
                        + newVersionInfo[0]);
                print("Download Link: " + newVersionInfo[1]);
                print("A reminder will be provided in 24 hours!");
                print("");
            } catch (InterruptedException ex) {
                com.gmt2001.Console.err.printStackTrace(ex);
            }//from w w  w .ja va  2 s. c o m

            if (webEnabled) {
                dataStore.set("settings", "newrelease_info", newVersionInfo[0] + "|" + newVersionInfo[1]);
            }
        } else {
            dataStore.del("settings", "newrelease_info");
        }
    }, 0, 24, TimeUnit.HOURS);
}

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