Example usage for java.util.concurrent Executors newScheduledThreadPool

Introduction

In this page you can find the example usage for java.util.concurrent Executors newScheduledThreadPool.

Prototype

public static ScheduledExecutorService newScheduledThreadPool(int corePoolSize) 

Source Link

Document

Creates a thread pool that can schedule commands to run after a given delay, or to execute periodically.

Usage

From source file:com.oltpbenchmark.benchmarks.smallworldbank.SWBankWorker.java

@SuppressWarnings("unchecked")
public SWBankWorker(BenchmarkModule benchmarkModule, int id) {
    super(benchmarkModule, id);

    exservice = Executors.newScheduledThreadPool(3);

    rdg = new RandomDataGenerator(new JDKRandomGenerator(id));
    // TODO: Get Dataset statistics:
    int noWorkers = benchmarkModule.getWorkloadConfiguration().getTerminals();
    tdp = benchmarkModule.getWorkloadConfiguration().getXmlConfig().getDouble("tdp");

    mddelay = benchmarkModule.getWorkloadConfiguration().getXmlConfig().getInt("mddelay");

    try {//from www .j  a v a  2s.c om
        long _custIdMax = SWBankUtil.getCustIdMax(this.conn);
        long _acctIdMax = SWBankUtil.getAcctIdMax(this.conn);
        long custRange = _custIdMax / noWorkers;
        long acctRange = _acctIdMax / noWorkers;

        custIdMin = (id * custRange);
        custIdMax = custIdMin + custRange;

        acctIdMin = (id * acctRange);
        acctIdMax = acctIdMin + acctRange;

        LOG.info(String.format(
                "workerId=%d, custIdMin=%d, custIdMax=%d, custRange=%d,  "
                        + "acctIdMin=%d, acctIdMax=%d, acctRange=%d, tdp = %f ",
                id, custIdMin, custIdMax, custRange, acctIdMin, acctIdMax, acctRange, tdp));

    } catch (SQLException e) {
        // TODO: handle exception
        e.printStackTrace();
    }

    // parse specific properties of transaction types

}

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From source file:org.opendaylight.groupbasedpolicy.renderer.opflex.PolicyManagerTest.java

@Before
public void setUp() throws Exception {
    MockitoAnnotations.initMocks(this);
    int numCPU = Runtime.getRuntime().availableProcessors();
    executor = Executors.newScheduledThreadPool(numCPU * 2);
    dummyEndpoint = new JsonRpcEndpoint(null, null, null, null, new RpcMessageMap(), null);
    when(mockResolver.registerListener(Matchers.<PolicyListener>any())).thenReturn(mockScope);

    policyManager = new PolicyManager(mockResolver, mockConnService, executor, mockOpflexLib);
}

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From source file:com.starit.diamond.server.service.TimerTaskService.java

private void initWithDB(List<ConfigInfo> configInfos) {
    this.scheduledExecutorService = Executors.newScheduledThreadPool(10);
    DumpConfigInfoTask configInfoTask = new DumpConfigInfoTask(this, configInfos);
    configInfoTask.run();/*from   w w  w . j av a  2  s  . co m*/
    this.scheduledExecutorService.scheduleAtFixedRate(configInfoTask, SystemConfig.getDumpConfigInterval(),
            SystemConfig.getDumpConfigInterval(), TimeUnit.SECONDS);
}

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From source file:org.openoverlayrouter.root.OORService.java

public synchronized void run() {
    scheduler = Executors.newScheduledThreadPool(1);
    Runnable dnsCheck = new Runnable() {
        public void run() {

            String psOutput = runTask("/system/bin/ps", "", false);
            isRunning = psOutput.matches("(?s)(.*)[RS]\\s[a-zA-Z0-9\\/\\.\\-]*liboor\\.so(.*)");
            if (isRunning && oor_dns != null) {
                String dns[] = get_dns_servers();
                if (!dns[0].equals(oor_dns[0]) || !dns[1].equals(oor_dns[1])) {
                    system_dns = get_dns_servers();
                    set_dns_servers(oor_dns);
                }/*from  w  w  w.  j av  a2  s .  c  o m*/
            }

            if (isRunning == false) {
                onDestroy();
            }
        }
    };
    scheduledFuture = scheduler.scheduleAtFixedRate(dnsCheck, 0, 1, TimeUnit.SECONDS);
}

---

From source file:org.lispmob.root.LISPmobService.java

public synchronized void run() {
    scheduler = Executors.newScheduledThreadPool(1);
    Runnable dnsCheck = new Runnable() {
        public void run() {

            String psOutput = runTask("/system/bin/ps", "", false);
            isRunning = psOutput.matches("(?s)(.*)[RS]\\s[a-zA-Z0-9\\/\\.\\-]*liblispd\\.so(.*)");
            if (isRunning && lispmob_dns != null) {
                String dns[] = get_dns_servers();
                if (!dns[0].equals(lispmob_dns[0]) || !dns[1].equals(lispmob_dns[1])) {
                    system_dns = get_dns_servers();
                    set_dns_servers(lispmob_dns);
                }//from  w w w  . j av  a  2  s.  c  o m
            }

            if (isRunning == false) {
                onDestroy();
            }
        }
    };
    scheduledFuture = scheduler.scheduleAtFixedRate(dnsCheck, 0, 1, TimeUnit.SECONDS);
}

---

From source file:org.openoverlayrouter.noroot.OORService.java

public synchronized void run() {
    scheduler = Executors.newScheduledThreadPool(1);
    Runnable dnsCheck = new Runnable() {
        public void run() {
            String psOutput = shell.run("/system/bin/ps | grep liboorexec.so");
            isRunning = psOutput.matches("(?s)(.*)[RS]\\s[a-zA-Z0-9\\/\\.\\-]*liboorexec\\.so(.*)");
            isRunning = true;// w w  w  . ja v a2  s .co  m
            if (oor_dns != null) {
                String dns[] = get_dns_servers();
                if ((dns[0] != null && !oor_dns.contains(dns[0]))
                        || (dns[1] != null && !oor_dns.contains(dns[1]))) {
                    system_dns = get_dns_servers();
                    set_dns_servers(oor_dns.toArray(new String[0]));
                }
            }

            if (isRunning == false) {
                onDestroy();
            }
        }
    };
    scheduledFuture = scheduler.scheduleAtFixedRate(dnsCheck, 0, 1, TimeUnit.SECONDS);
}

---

From source file:com.linkedin.restli.server.RestliServlet.java

private AbstractR2Servlet buildR2ServletFromServletParams(ServletConfig servletConfig) {
    ResourceFactory resourceFactory = new PrototypeResourceFactory();

    RestLiConfig config = new RestLiConfig();
    config.setResourcePackageNamesSet(getResourcePackageSet(servletConfig));

    final ScheduledExecutorService scheduler = Executors
            .newScheduledThreadPool(getParseqThreadPoolSize(servletConfig));
    Engine engine = new EngineBuilder().setTaskExecutor(scheduler).setTimerScheduler(scheduler).build();

    DelegatingTransportDispatcher dispatcher = new DelegatingTransportDispatcher(
            new RestLiServer(config, resourceFactory, engine));

    boolean useAsync = getUseAsync(servletConfig);
    long asyncTimeOut = getAsyncTimeout(servletConfig);

    if (useAsync && servletConfig.getServletContext().getMajorVersion() < 3) {
        throw new IllegalArgumentException(
                "This servlet is configured with useAsync=true, but the current servlet "
                        + "context does not support the required Servlet API 3.0.");

    }/*  w w  w  . j  a va2 s . c  o m*/
    if (!useAsync) {
        log.info(
                "Initializing Rest.li with a thread based request handling.  Set useAsync=true on a Servlet API 3.0 container to enable Rest.li's async servlet.");
        return new RAPServlet(dispatcher);
    } else {
        log.info("Initializing Rest.li with an async request handling enabled.");
        return new AsyncR2Servlet(dispatcher, asyncTimeOut);
    }
}

---

From source file:cherry.foundation.mail.SendMailBatchTest.java

@Test
public void testInterrupt() throws Exception {

    final File shutdownTrigger = new File("./shutdownTrigger.txt");
    shutdownTrigger.deleteOnExit();/*from w w w  .ja  va  2 s  .  com*/
    Callable<Boolean> callable = new Callable<Boolean>() {
        @Override
        public Boolean call() {
            try (FileOutputStream os = new FileOutputStream(shutdownTrigger)) {
                return true;
            } catch (IOException ex) {
                return false;
            }
        }
    };

    ScheduledExecutorService service = Executors.newScheduledThreadPool(1);
    ScheduledFuture<Boolean> future = service.schedule(callable, 5L, TimeUnit.SECONDS);
    final Thread currentThread = Thread.currentThread();
    ScheduledFuture<Boolean> interrupt = service.schedule(new Callable<Boolean>() {
        @Override
        public Boolean call() {
            currentThread.interrupt();
            return true;
        }
    }, 2L, TimeUnit.SECONDS);

    SendMailBatch batch = create(1000L, shutdownTrigger, false);
    ExitStatus status = batch.execute();

    assertEquals(ExitStatus.NORMAL, status);
    assertTrue(future.get().booleanValue());
    assertTrue(interrupt.get().booleanValue());
    assertFalse(shutdownTrigger.exists());

    verify(bizDateTime, atLeastOnce()).now();
    verify(mailSendHandler, atLeastOnce()).listMessage((LocalDateTime) eq(null));
    verify(mailSendHandler, atLeastOnce()).sendMessage(eq(1L));
    verify(mailSendHandler, atLeastOnce()).sendMessage(eq(2L));
    verify(mailSendHandler, atLeastOnce()).sendMessage(eq(3L));
}

---

From source file:au.com.jwatmuff.genericp2p.rmi.RMIPeerManager.java

public void start() {
    log.debug("Obtained local ID: " + this.getUUID());

    registerService(AnnounceService.class, this);
    registerService(IdentifyService.class, this);
    registerService(LookupService.class, this);

    fastPeerCheckExecutor = Executors.newScheduledThreadPool(2);
    slowPeerCheckExecutor = Executors.newScheduledThreadPool(4);

    fastPeerCheckExecutor.scheduleAtFixedRate(new Runnable() {
        @Override/*  w  w w  . j a  va 2 s .  c om*/
        public void run() {
            for (ManagedPeer peer : getManagedPeers()) {
                log.debug("FAST CHECK CHECKING: " + peer);
                checkPeer(peer);
            }
        }
    }, 30, 30, TimeUnit.SECONDS);

    slowPeerCheckExecutor.scheduleAtFixedRate(new Runnable() {
        @Override
        public void run() {
            addSelf();
            for (InetSocketAddress address : getAddresses()) {
                log.debug("SLOW CHECK CHECKING: " + address);
                checkAddress(address);
            }
        }
    }, 30, 30, TimeUnit.SECONDS);

    addSelf();

    log.debug("Completed RMIPeerManager startup");
}

---

From source file:com.nts.alphamale.handler.ExecutorHandler.java

public void executePeriodically(Runnable rt, long period) {
    scheduledExecutor = Executors.newScheduledThreadPool(1);
    scheduledExecutor.scheduleAtFixedRate(rt, 3 * 1000, period, TimeUnit.MILLISECONDS);
}

---

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