Example usage for org.joda.time DateTime now

Introduction

In this page you can find the example usage for org.joda.time DateTime now.

Prototype

public static DateTime now()

Source Link

Document

Obtains a DateTime set to the current system millisecond time using ISOChronology in the default time zone.

Usage

From source file:com.almende.eve.algorithms.test.agents.DAAAgent.java

License:Apache License

/**
 * Sets the initial DAA value.// w w w  .ja va2 s.  c  o  m
 *
 * @param value
 *            the new initial value
 */
public void start(final double value) {
    final ObjectNode config = JOM.createObjectNode();
    config.put("width", 1000);
    config.put("initialTTL", 10);
    config.put("evictionFactor", 20);

    config.put("intervalFactor", 5);
    config.put("intervalMin", 200);
    config.put("redundancyFactor", 9999);

    daa.configure(config);
    daa.setNewValue(value);

    trickle = new TrickleRPC(config, getScheduler(), new Runnable() {
        @Override
        public void run() {
            daa.getLocalValue().setTTL(DateTime.now().plus((long) (trickle.getDelay() * 3.2)).getMillis());
        }
    }, new Runnable() {
        @Override
        public void run() {
            final Params params = new Params();
            params.add("value", daa.getCurrentEstimate());
            for (final Edge agent : getGraph().getByTag("daa")) {
                try {
                    call(agent.getAddress(), "daaReceive", params);
                } catch (IOException e) {
                }
            }
        }
    });

}

From source file:com.almende.eve.algorithms.TrickleRPC.java

License:Apache License

private void reschedule(final long[] intervals) {
    if (intervals != null && intervals.length > 0 && intervals[0] >= 0 && intervals[1] >= 0) {
        final DateTime nextSend = DateTime.now().plus(intervals[0]);
        final DateTime nextInterval = DateTime.now().plus(intervals[1]);

        final String oldSendTaskId = sendTaskId;
        if (oldSendTaskId != null) {
            scheduler.cancel(oldSendTaskId);
        }//  w ww .j  a  v  a 2  s  . co  m
        sendTaskId = scheduler.schedule(null, REQUESTS.get(namespace + "send"), nextSend);

        final String oldIntTaskId = intTaskId;
        if (oldIntTaskId != null) {
            scheduler.cancel(oldIntTaskId);
        }
        intTaskId = scheduler.schedule(null, REQUESTS.get(namespace + "nextInterval"), nextInterval);
    }
}

From source file:com.almende.eve.demo.TipsNTricksAgent.java

License:Apache License

/**
 * Schedule parallel./* ww w  .  jav a2  s  . co  m*/
 */
public void scheduleSpecific() {
    schedule("scheduleSpecific", null, DateTime.now().plus(1000 - DateTime.now().millisOfSecond().get()));
    onInterval();
}

From source file:com.almende.eve.ggdemo.DAALampAgent.java

License:Apache License

@Override
public void create(List<String> neighbours, Integer stepSize) throws JSONRPCException, IOException {
    super.create(neighbours, stepSize);
    final ObjectNode config = JOM.createObjectNode();
    config.put("width", 1000);
    config.put("initialTTL", 10);
    config.put("evictionFactor", 20);

    config.put("intervalFactor", 5);
    config.put("intervalMin", 200);
    config.put("redundancyFactor", 999);

    lampCnt.configure(config);//ww  w.j  a v  a2s  .  c  o  m
    lampCnt.setNewValue(1.0);

    onCnt.configure(config);
    onCnt.setNewValue(super.isOn() ? 1.0 : 0.0);

    final List<String> nbs = neighbours;
    trickle = new TrickleRPC(config, getScheduler(), new Runnable() {
        @Override
        public void run() {
            //checkLamps();
            final long delay = (long) (trickle.getDelay() * 3.2);
            lampCnt.getLocalValue().setTTL(DateTime.now().plus(delay).getMillis());
            onCnt.getLocalValue().setTTL(DateTime.now().plus(delay).getMillis());
        }
    }, new Runnable() {
        @Override
        public void run() {
            for (final String neighbour : nbs) {
                Params params = new Params();
                params.add("nofLamps", lampCnt.getCurrentEstimate());
                params.add("nofOn", onCnt.getCurrentEstimate());
                try {
                    call(URIUtil.create(neighbour), "daaReceive", params);
                } catch (IOException e) {
                }
            }
        }
    });
    scheduleLamps();
}

From source file:com.almende.eve.monitor.Cache.java

License:Apache License

/**
 * Store value and set storage time to now();.
 * /*  ww  w . j  ava 2 s  . c  om*/
 * @param value
 *            the value
 */
public void store(final Object value) {
    stored = DateTime.now();
    this.value = value;
}

From source file:com.almende.eve.scheduler.clock.RunnableClock.java

License:Apache License

@Override
public void run() {
    synchronized (TIMELINE) {
        while (!TIMELINE.isEmpty()) {
            final ClockEntry ce = TIMELINE.firstEntry().getValue();
            if (future != null) {
                future.cancel(false);/*from w  w  w. j a  v  a2  s. c  om*/
                future = null;
            }
            final DateTime now = DateTime.now();
            if (ce.getDue().isBefore(now)) {
                TIMELINE.remove(ce);
                POOL.execute(ce.getCallback());
                continue;
            }
            final long interval = new Interval(now, ce.getDue()).toDurationMillis();
            future = POOL.schedule(this, interval, TimeUnit.MILLISECONDS);
            break;
        }
    }
}

From source file:com.almende.eve.scheduling.SimpleScheduler.java

License:Apache License

@Override
public String schedule(Object msg, int delay) {
    return schedule(msg, DateTime.now().plus(delay));
}

From source file:com.almende.eve.scheduling.SyncScheduler.java

License:Apache License

/**
 * Sync with peer./*from www. java 2  s  . c  o m*/
 *
 * @param peer
 *            the peer
 * @return the long
 */
@Access(AccessType.PUBLIC)
public SyncTupple syncWithPeer(final URI peer) {
    if (caller == null) {
        LOG.warning("Sync requested, but caller is still null, invalid!");
        return null;
    }
    LOG.info("Starting sync with: " + peer + "!");
    final DateTime start = DateTime.now();
    try {
        final Long result = caller.callSync(peer, "syncScheduler.ping", JOM.createObjectNode(), Long.class);
        final long roundtrip = new Duration(start, DateTime.now()).getMillis();
        final long offset = result - now() + (roundtrip / 2);
        LOG.info("Sync resulted in offset:" + offset + " ( " + roundtrip + ":" + start + ":" + result + ")");
        return new SyncTupple(offset, roundtrip);
    } catch (IOException e) {
        LOG.log(Level.WARNING, "failed to send ping", e);
    }
    return null;
}

From source file:com.almende.eve.scheduling.SyncScheduler.java

License:Apache License

/**
 * Sync./*from www.  java2  s  . c o  m*/
 */
@Access(AccessType.PUBLIC)
public void sync() {
    synchronized (active) {
        if (active) {
            return;
        }
        active = true;
    }
    try {
        for (final URI peer : peers) {
            LOG.info("Doing sync with " + peer + "!");

            final ArrayList<SyncTupple> results = new ArrayList<SyncTupple>(5);
            final int[] fail = new int[1];
            fail[0] = 0;
            getClock().requestTrigger(new UUID().toString(), DateTime.now(), new Runnable() {
                @Override
                public void run() {
                    final SyncTupple res = syncWithPeer(peer);
                    if (res != null) {
                        results.add(res);
                    } else {
                        fail[0]++;
                    }
                    if (fail[0] < 5 && results.size() < 5) {
                        getClock().requestTrigger(new UUID().toString(),
                                DateTime.now().plus((long) (4000 * Math.random())), this);
                    }
                }
            });
            while (fail[0] < 5 && results.size() < 5) {
                try {
                    Thread.sleep(4000);
                } catch (InterruptedException e) {
                }
            }
            long sum = 0;
            for (int i = 0; i < results.size(); i++) {
                sum += results.get(i).roundtrip;
            }
            long mean = sum / results.size();

            sum = 0;
            for (int i = 0; i < results.size(); i++) {
                sum += Math.pow(results.get(i).roundtrip - mean, 2);
            }

            double stdDev = Math.sqrt(sum / results.size());
            double limit = stdDev + mean;
            LOG.warning("Mean:" + mean + " stdDev:" + stdDev + " limit:" + limit);

            sum = 0;
            int count = 0;
            for (SyncTupple tupple : results) {
                if (tupple.roundtrip > limit) {
                    LOG.warning("Skipping tupple:" + tupple);
                    continue;
                }
                LOG.warning("Adding tupple:" + tupple);
                count++;
                sum += tupple.offset;
            }

            offset += sum / count;
            LOG.info("Done sync with " + peer + "! new offset:" + offset + "(" + sum / count + ")");
        }
    } catch (Exception e) {
        LOG.log(Level.WARNING, "TimeSync failed", e);
    }
    synchronized (active) {
        active = false;
    }
    getClock().requestTrigger(new UUID().toString(),
            new DateTime(now()).plus((long) (syncInterval * Math.random())), new Runnable() {
                @Override
                public void run() {
                    try {
                        sync();
                    } catch (Exception e) {
                        LOG.log(Level.WARNING, "sync failed", e);
                    }
                }
            });

}

From source file:com.almende.eve.transport.tokens.TokenStore.java

License:Apache License

/**
 * Creates the./*from w w  w.  j  av  a  2  s .  c  o m*/
 * 
 * @return the token ret
 */
public TokenRet create() {
    TokenRet result;
    if (tokens.size() == 0 || tokens.get(last.toString()) == null || last.plus(3600000).isBeforeNow()) {
        final DateTime now = DateTime.now();
        final String token = new UUID().toString();
        result = new TokenRet(token, now);
        tokens.put(now.toString(), token);
        last = now;

        if (tokens.size() > SIZE + 2) {
            DateTime oldest = last;
            for (final String time : tokens.keySet()) {
                try {
                    if (DateTime.parse(time).isBefore(oldest)) {
                        oldest = DateTime.parse(time);
                    }
                } catch (final Exception e) {
                    LOG.log(Level.WARNING, "Failed in eviction of tokens:", e);
                }
            }
            tokens.remove(oldest.toString());
        }
    } else {
        result = new TokenRet(tokens.get(last.toString()), last);
    }
    return result;
}