/*
* Copyright 2010-2011 Ning, Inc.
*
* Ning licenses this file to you under the Apache License, version 2.0
* (the "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package com.ning.billing.util.notificationq;
import static com.jayway.awaitility.Awaitility.await;
import static java.util.concurrent.TimeUnit.MINUTES;
import static org.testng.Assert.assertEquals;
import java.io.IOException;
import java.sql.SQLException;
import java.util.Collection;
import java.util.Map;
import java.util.TreeMap;
import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.concurrent.TimeUnit;
import org.apache.commons.io.IOUtils;
import org.joda.time.DateTime;
import org.skife.jdbi.v2.Handle;
import org.skife.jdbi.v2.IDBI;
import org.skife.jdbi.v2.Transaction;
import org.skife.jdbi.v2.TransactionStatus;
import org.skife.jdbi.v2.tweak.HandleCallback;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Guice;
import org.testng.annotations.Test;
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
import com.google.inject.AbstractModule;
import com.google.inject.Inject;
import com.google.inject.name.Named;
import com.google.inject.name.Names;
import com.ning.billing.dbi.MysqlTestingHelper;
import com.ning.billing.util.clock.Clock;
import com.ning.billing.util.clock.ClockMock;
import com.ning.billing.util.notificationq.NotificationQueueService.NotificationQueueHandler;
import com.ning.billing.util.notificationq.dao.NotificationSqlDao;
@Guice(modules = TestNotificationQueue.TestNotificationQueueModule.class)
public class TestNotificationQueue {
Logger log = LoggerFactory.getLogger(TestNotificationQueue.class);
@Inject
private IDBI dbi;
@Inject
MysqlTestingHelper helper;
@Inject
private Clock clock;
private DummySqlTest dao;
private int eventsReceived;
// private NotificationQueue queue;
private void startMysql() throws IOException, ClassNotFoundException, SQLException {
final String ddl = IOUtils.toString(NotificationSqlDao.class.getResourceAsStream("/com/ning/billing/util/ddl.sql"));
final String testDdl = IOUtils.toString(NotificationSqlDao.class.getResourceAsStream("/com/ning/billing/util/ddl_test.sql"));
helper.startMysql();
helper.initDb(ddl);
helper.initDb(testDdl);
}
@BeforeSuite(alwaysRun = true)
public void setup() throws Exception {
startMysql();
dao = dbi.onDemand(DummySqlTest.class);
}
@BeforeTest
public void beforeTest() {
dbi.withHandle(new HandleCallback<Void>() {
@Override
public Void withHandle(Handle handle) throws Exception {
handle.execute("delete from notifications");
handle.execute("delete from claimed_notifications");
handle.execute("delete from dummy");
return null;
}
});
// Reset time to real value
((ClockMock) clock).resetDeltaFromReality();
}
/**
* Test that we can post a notification in the future from a transaction and get the notification
* callback with the correct key when the time is ready
* @throws Exception
*/
@Test(groups={"fast"}, enabled = true)
public void testSimpleNotification() throws Exception {
final Map<String, Boolean> expectedNotifications = new TreeMap<String, Boolean>();
final DefaultNotificationQueue queue = new DefaultNotificationQueue(dbi, clock, "test-svc", "foo",
new NotificationQueueHandler() {
@Override
public void handleReadyNotification(String notificationKey) {
synchronized (expectedNotifications) {
log.info("Handler received key: " + notificationKey);
expectedNotifications.put(notificationKey.toString(), Boolean.TRUE);
expectedNotifications.notify();
}
}
},
getNotificationConfig(false, 100, 1, 10000));
queue.startQueue();
final UUID key = UUID.randomUUID();
final DummyObject obj = new DummyObject("foo", key);
final DateTime now = new DateTime();
final DateTime readyTime = now.plusMillis(2000);
final NotificationKey notificationKey = new NotificationKey() {
@Override
public String toString() {
return key.toString();
}
};
expectedNotifications.put(notificationKey.toString(), Boolean.FALSE);
// Insert dummy to be processed in 2 sec'
dao.inTransaction(new Transaction<Void, DummySqlTest>() {
@Override
public Void inTransaction(DummySqlTest transactional,
TransactionStatus status) throws Exception {
transactional.insertDummy(obj);
queue.recordFutureNotificationFromTransaction(transactional,
readyTime, notificationKey);
log.info("Posted key: " + notificationKey);
return null;
}
});
// Move time in the future after the notification effectiveDate
((ClockMock) clock).setDeltaFromReality(3000);
// Notification should have kicked but give it at least a sec' for thread scheduling
await().atMost(1, MINUTES).until(new Callable<Boolean>() {
@Override
public Boolean call() throws Exception {
return expectedNotifications.get(notificationKey.toString());
}
});
Assert.assertTrue(expectedNotifications.get(notificationKey.toString()));
}
@Test
public void testManyNotifications() throws InterruptedException {
final Map<String, Boolean> expectedNotifications = new TreeMap<String, Boolean>();
final DefaultNotificationQueue queue = new DefaultNotificationQueue(dbi, clock, "test-svc", "many",
new NotificationQueueHandler() {
@Override
public void handleReadyNotification(String notificationKey) {
synchronized (expectedNotifications) {
expectedNotifications.put(notificationKey, Boolean.TRUE);
expectedNotifications.notify();
}
}
},
getNotificationConfig(false, 100, 10, 10000));
queue.startQueue();
final DateTime now = clock.getUTCNow();
final int MAX_NOTIFICATIONS = 100;
for (int i = 0; i < MAX_NOTIFICATIONS; i++) {
final int nextReadyTimeIncrementMs = 1000;
final UUID key = UUID.randomUUID();
final DummyObject obj = new DummyObject("foo", key);
final int currentIteration = i;
final NotificationKey notificationKey = new NotificationKey() {
@Override
public String toString() {
return key.toString();
}
};
expectedNotifications.put(notificationKey.toString(), Boolean.FALSE);
dao.inTransaction(new Transaction<Void, DummySqlTest>() {
@Override
public Void inTransaction(DummySqlTest transactional,
TransactionStatus status) throws Exception {
transactional.insertDummy(obj);
queue.recordFutureNotificationFromTransaction(transactional,
now.plus((currentIteration + 1) * nextReadyTimeIncrementMs), notificationKey);
return null;
}
});
// Move time in the future after the notification effectiveDate
if (i == 0) {
((ClockMock) clock).setDeltaFromReality(nextReadyTimeIncrementMs);
} else {
((ClockMock) clock).addDeltaFromReality(nextReadyTimeIncrementMs);
}
}
// Wait a little longer since there are a lot of callback that need to happen
int nbTry = MAX_NOTIFICATIONS + 1;
boolean success = false;
do {
synchronized(expectedNotifications) {
Collection<Boolean> completed = Collections2.filter(expectedNotifications.values(), new Predicate<Boolean>() {
@Override
public boolean apply(Boolean input) {
return input;
}
});
if (completed.size() == MAX_NOTIFICATIONS) {
success = true;
break;
}
//log.debug(String.format("BEFORE WAIT : Got %d notifications at time %s (real time %s)", completed.size(), clock.getUTCNow(), new DateTime()));
expectedNotifications.wait(1000);
}
} while (nbTry-- > 0);
assertEquals(success, true);
}
/**
* Test that we can post a notification in the future from a transaction and get the notification
* callback with the correct key when the time is ready
* @throws Exception
*/
@Test(groups={"fast"}, enabled = true)
public void testMultipleHandlerNotification() throws Exception {
final Map<String, Boolean> expectedNotificationsFred = new TreeMap<String, Boolean>();
final Map<String, Boolean> expectedNotificationsBarney = new TreeMap<String, Boolean>();
NotificationQueueService notificationQueueService = new DefaultNotificationQueueService(dbi, clock);
NotificationConfig config=new NotificationConfig() {
@Override
public boolean isNotificationProcessingOff() {
return false;
}
@Override
public long getNotificationSleepTimeMs() {
return 10;
}
@Override
public int getDaoMaxReadyEvents() {
return 1;
}
@Override
public long getDaoClaimTimeMs() {
return 60000;
}
};
final NotificationQueue queueFred = notificationQueueService.createNotificationQueue("UtilTest", "Fred", new NotificationQueueHandler() {
@Override
public void handleReadyNotification(String notificationKey) {
log.info("Fred received key: " + notificationKey);
expectedNotificationsFred.put(notificationKey, Boolean.TRUE);
eventsReceived++;
}
},
config);
final NotificationQueue queueBarney = notificationQueueService.createNotificationQueue("UtilTest", "Barney", new NotificationQueueHandler() {
@Override
public void handleReadyNotification(String notificationKey) {
log.info("Barney received key: " + notificationKey);
expectedNotificationsBarney.put(notificationKey, Boolean.TRUE);
eventsReceived++;
}
},
config);
queueFred.startQueue();
// We don't start Barney so it can never pick up notifications
final UUID key = UUID.randomUUID();
final DummyObject obj = new DummyObject("foo", key);
final DateTime now = new DateTime();
final DateTime readyTime = now.plusMillis(2000);
final NotificationKey notificationKeyFred = new NotificationKey() {
@Override
public String toString() {
return "Fred" ;
}
};
final NotificationKey notificationKeyBarney = new NotificationKey() {
@Override
public String toString() {
return "Barney" ;
}
};
expectedNotificationsFred.put(notificationKeyFred.toString(), Boolean.FALSE);
expectedNotificationsFred.put(notificationKeyBarney.toString(), Boolean.FALSE);
// Insert dummy to be processed in 2 sec'
dao.inTransaction(new Transaction<Void, DummySqlTest>() {
@Override
public Void inTransaction(DummySqlTest transactional,
TransactionStatus status) throws Exception {
transactional.insertDummy(obj);
queueFred.recordFutureNotificationFromTransaction(transactional,
readyTime, notificationKeyFred);
log.info("posted key: " + notificationKeyFred.toString());
queueBarney.recordFutureNotificationFromTransaction(transactional,
readyTime, notificationKeyBarney);
log.info("posted key: " + notificationKeyBarney.toString());
return null;
}
});
// Move time in the future after the notification effectiveDate
((ClockMock) clock).setDeltaFromReality(3000);
// Note the timeout is short on this test, but expected behaviour is that it times out.
// We are checking that the Fred queue does not pick up the Barney event
try {
await().atMost(5, TimeUnit.SECONDS).until(new Callable<Boolean>() {
@Override
public Boolean call() throws Exception {
return eventsReceived >= 2;
}
});
Assert.fail("There should only have been one event for the queue to pick up - it got more than that");
} catch (Exception e) {
// expected behavior
}
Assert.assertTrue(expectedNotificationsFred.get(notificationKeyFred.toString()));
Assert.assertFalse(expectedNotificationsFred.get(notificationKeyBarney.toString()));
}
NotificationConfig getNotificationConfig(final boolean off,
final long sleepTime, final int maxReadyEvents, final long claimTimeMs) {
return new NotificationConfig() {
@Override
public boolean isNotificationProcessingOff() {
return off;
}
@Override
public long getNotificationSleepTimeMs() {
return sleepTime;
}
@Override
public int getDaoMaxReadyEvents() {
return maxReadyEvents;
}
@Override
public long getDaoClaimTimeMs() {
return claimTimeMs;
}
};
}
public static class TestNotificationQueueModule extends AbstractModule {
@Override
protected void configure() {
bind(Clock.class).to(ClockMock.class);
final MysqlTestingHelper helper = new MysqlTestingHelper();
bind(MysqlTestingHelper.class).toInstance(helper);
IDBI dbi = helper.getDBI();
bind(IDBI.class).toInstance(dbi);
IDBI otherDbi = helper.getDBI();
bind(IDBI.class).annotatedWith(Names.named("global-lock")).toInstance(otherDbi);
/*
bind(DBI.class).toProvider(DBIProvider.class).asEagerSingleton();
final DbiConfig config = new ConfigurationObjectFactory(System.getProperties()).build(DbiConfig.class);
bind(DbiConfig.class).toInstance(config);
*/
}
}
}