List of usage examples for java.util.concurrent ArrayBlockingQueue offer
public boolean offer(E e)
From source file:Main.java
public static void main(String[] argv) throws Exception { int capacity = 10; ArrayBlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(capacity); for (int i = 0; i < 10; i++) { queue.add(i);/* ww w. j a va2 s.c o m*/ } queue.offer(9999); System.out.println(queue); }
From source file:io.teak.sdk.TeakNotification.java
/** * Cancel a push notification that was scheduled with {@link TeakNotification#scheduleNotification(String, String, long)} * * @param scheduleId/* ww w . j a va 2 s .c o m*/ * @return */ @SuppressWarnings("unused") public static FutureTask<String> cancelNotification(final String scheduleId) { if (!Teak.isEnabled()) { Log.e(LOG_TAG, "Teak is disabled, ignoring cancelNotification()."); return null; } if (scheduleId == null || scheduleId.isEmpty()) { Log.e(LOG_TAG, "scheduleId cannot be null or empty"); return null; } final ArrayBlockingQueue<String> q = new ArrayBlockingQueue<>(1); final FutureTask<String> ret = new FutureTask<>(new Callable<String>() { public String call() { try { return q.take(); } catch (InterruptedException e) { Log.e(LOG_TAG, Log.getStackTraceString(e)); } return null; } }); Session.whenUserIdIsReadyRun(new Session.SessionRunnable() { @Override public void run(Session session) { HashMap<String, Object> payload = new HashMap<>(); payload.put("id", scheduleId); new Request("/me/cancel_local_notify.json", payload, session) { @Override protected void done(int responseCode, String responseBody) { try { JSONObject response = new JSONObject(responseBody); if (response.getString("status").equals("ok")) { q.offer(response.getJSONObject("event").getString("id")); } else { q.offer(""); } } catch (Exception ignored) { q.offer(""); } ret.run(); } }.run(); } }); return ret; }
From source file:io.teak.sdk.TeakNotification.java
/** * Schedules a push notification for some time in the future. * * @param creativeId The identifier of the notification in the Teak dashboard (will create if not found). * @param defaultMessage The default message to send, may be over-ridden in the dashboard. * @param delayInSeconds The delay in seconds from now to send the notification. * @return The identifier of the scheduled notification (see {@link TeakNotification#cancelNotification(String)} or null. *///from w w w.j a va 2 s .c o m @SuppressWarnings("unused") public static FutureTask<String> scheduleNotification(final String creativeId, final String defaultMessage, final long delayInSeconds) { if (!Teak.isEnabled()) { Log.e(LOG_TAG, "Teak is disabled, ignoring scheduleNotification()."); return null; } if (creativeId == null || creativeId.isEmpty()) { Log.e(LOG_TAG, "creativeId cannot be null or empty"); return null; } if (defaultMessage == null || defaultMessage.isEmpty()) { Log.e(LOG_TAG, "defaultMessage cannot be null or empty"); return null; } final ArrayBlockingQueue<String> q = new ArrayBlockingQueue<>(1); final FutureTask<String> ret = new FutureTask<>(new Callable<String>() { public String call() { try { return q.take(); } catch (InterruptedException e) { Log.e(LOG_TAG, Log.getStackTraceString(e)); } return null; } }); Session.whenUserIdIsReadyRun(new Session.SessionRunnable() { @Override public void run(Session session) { HashMap<String, Object> payload = new HashMap<>(); payload.put("identifier", creativeId); payload.put("message", defaultMessage); payload.put("offset", delayInSeconds); new Request("/me/local_notify.json", payload, session) { @Override protected void done(int responseCode, String responseBody) { try { JSONObject response = new JSONObject(responseBody); if (response.getString("status").equals("ok")) { q.offer(response.getJSONObject("event").getString("id")); } else { q.offer(""); } } catch (Exception ignored) { q.offer(""); } ret.run(); } }.run(); } }); return ret; }
From source file:org.apache.activemq.leveldb.test.ReplicatedLevelDBBrokerTest.java
@Test @Ignore/*from w ww . j av a 2 s.c o m*/ public void testReplicationQuorumLoss() throws Throwable { System.out.println("======================================"); System.out.println(" Start 2 ActiveMQ nodes."); System.out.println("======================================"); startBrokerAsync(createBrokerNode("node-1", port)); startBrokerAsync(createBrokerNode("node-2", port)); BrokerService master = waitForNextMaster(); System.out.println("======================================"); System.out.println(" Start the producer and consumer"); System.out.println("======================================"); final AtomicBoolean stopClients = new AtomicBoolean(false); final ArrayBlockingQueue<String> errors = new ArrayBlockingQueue<String>(100); final AtomicLong receivedCounter = new AtomicLong(); final AtomicLong sentCounter = new AtomicLong(); Thread producer = startFailoverClient("producer", new Client() { @Override public void execute(Connection connection) throws Exception { Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE); MessageProducer producer = session.createProducer(session.createQueue("test")); long actual = 0; while (!stopClients.get()) { TextMessage msg = session.createTextMessage("Hello World"); msg.setLongProperty("id", actual++); producer.send(msg); sentCounter.incrementAndGet(); } } }); Thread consumer = startFailoverClient("consumer", new Client() { @Override public void execute(Connection connection) throws Exception { connection.start(); Session session = connection.createSession(false, Session.CLIENT_ACKNOWLEDGE); MessageConsumer consumer = session.createConsumer(session.createQueue("test")); long expected = 0; while (!stopClients.get()) { Message msg = consumer.receive(200); if (msg != null) { long actual = msg.getLongProperty("id"); if (actual != expected) { errors.offer("Received got unexpected msg id: " + actual + ", expected: " + expected); } msg.acknowledge(); expected = actual + 1; receivedCounter.incrementAndGet(); } } } }); try { assertCounterMakesProgress(sentCounter, 10, TimeUnit.SECONDS); assertCounterMakesProgress(receivedCounter, 5, TimeUnit.SECONDS); assertNull(errors.poll()); System.out.println("======================================"); System.out.println(" Master should stop once the quorum is lost."); System.out.println("======================================"); ArrayList<BrokerService> stopped = stopSlaves();// stopping the slaves should kill the quorum. assertStopsWithin(master, 10, TimeUnit.SECONDS); assertNull(errors.poll()); // clients should not see an error since they are failover clients. stopped.add(master); System.out.println("======================================"); System.out.println(" Restart the slave. Clients should make progress again.."); System.out.println("======================================"); startBrokersAsync(createBrokerNodes(stopped)); assertCounterMakesProgress(sentCounter, 10, TimeUnit.SECONDS); assertCounterMakesProgress(receivedCounter, 5, TimeUnit.SECONDS); assertNull(errors.poll()); } catch (Throwable e) { e.printStackTrace(); throw e; } finally { // Wait for the clients to stop.. stopClients.set(true); producer.join(); consumer.join(); } }