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/*
* Copyright 2010-2013 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.ovedue.notification;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import javax.annotation.Nullable;
import org.joda.time.DateTime;
import org.skife.jdbi.v2.IDBI;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.ning.billing.account.api.Account;
import com.ning.billing.clock.Clock;
import com.ning.billing.notificationq.api.NotificationEventWithMetadata;
import com.ning.billing.notificationq.api.NotificationQueue;
import com.ning.billing.notificationq.api.NotificationQueueService;
import com.ning.billing.notificationq.api.NotificationQueueService.NoSuchNotificationQueue;
import com.ning.billing.overdue.service.DefaultOverdueService;
import com.ning.billing.util.cache.CacheControllerDispatcher;
import com.ning.billing.util.callcontext.InternalCallContext;
import com.ning.billing.util.dao.NonEntityDao;
import com.ning.billing.util.entity.dao.EntitySqlDao;
import com.ning.billing.util.entity.dao.EntitySqlDaoTransactionWrapper;
import com.ning.billing.util.entity.dao.EntitySqlDaoTransactionalJdbiWrapper;
import com.ning.billing.util.entity.dao.EntitySqlDaoWrapperFactory;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
import com.google.inject.Inject;
public class DefaultOverdueCheckPoster implements OverdueCheckPoster {
private static final Logger log = LoggerFactory.getLogger(DefaultOverdueCheckPoster.class);
private final NotificationQueueService notificationQueueService;
private final EntitySqlDaoTransactionalJdbiWrapper transactionalSqlDao;
@Inject
public DefaultOverdueCheckPoster(final NotificationQueueService notificationQueueService,
final IDBI dbi, final Clock clock,
final CacheControllerDispatcher cacheControllerDispatcher, final NonEntityDao nonEntityDao) {
this.notificationQueueService = notificationQueueService;
this.transactionalSqlDao = new EntitySqlDaoTransactionalJdbiWrapper(dbi, clock, cacheControllerDispatcher, nonEntityDao);
}
@Override
public void insertOverdueCheckNotification(final Account account, final DateTime futureNotificationTime, final InternalCallContext context) {
final NotificationQueue checkOverdueQueue;
try {
checkOverdueQueue = notificationQueueService.getNotificationQueue(DefaultOverdueService.OVERDUE_SERVICE_NAME,
DefaultOverdueCheckNotifier.OVERDUE_CHECK_NOTIFIER_QUEUE);
transactionalSqlDao.execute(new EntitySqlDaoTransactionWrapper() {
@Override
public Void inTransaction(final EntitySqlDaoWrapperFactory entitySqlDaoWrapperFactory) throws Exception {
boolean shouldInsertNewNotification = true;
// Check if we already have notifications for that key
final Collection> futureNotifications = getFutureNotificationsForAccountAndOverdueableInTransaction(entitySqlDaoWrapperFactory, checkOverdueQueue, account, context);
if (futureNotifications.size() > 0) {
// Results are ordered by effective date asc
final DateTime earliestExistingNotificationDate = futureNotifications.iterator().next().getEffectiveDate();
final int minIndexToDeleteFrom;
if (earliestExistingNotificationDate.isBefore(futureNotificationTime)) {
// We don't have to insert a new one. For sanity, delete any other future notification
minIndexToDeleteFrom = 1;
shouldInsertNewNotification = false;
} else {
// We win - we are before any other already recorded. Delete all others.
minIndexToDeleteFrom = 0;
}
int index = 0;
final Iterator> it = futureNotifications.iterator();
while (it.hasNext()) {
final NotificationEventWithMetadata cur = it.next();
if (minIndexToDeleteFrom <= index) {
checkOverdueQueue.removeNotificationFromTransaction(entitySqlDaoWrapperFactory.getSqlDao(), cur.getRecordId());
}
index++;
}
}
if (shouldInsertNewNotification) {
log.debug("Queuing overdue check notification. Account id: {}, timestamp: {}", account.getId().toString(), futureNotificationTime.toString());
final OverdueCheckNotificationKey notificationKey = new OverdueCheckNotificationKey(account.getId());
checkOverdueQueue.recordFutureNotificationFromTransaction(entitySqlDaoWrapperFactory.getSqlDao(), futureNotificationTime, notificationKey, context.getUserToken(), context.getAccountRecordId(), context.getTenantRecordId());
} else {
log.debug("Skipping queuing overdue check notification. Account id: {}, timestamp: {}", account.getId().toString(), futureNotificationTime.toString());
}
return null;
}
});
} catch (NoSuchNotificationQueue e) {
log.error("Attempting to put items on a non-existent queue (DefaultOverdueCheck).", e);
}
}
@Override
public void clearNotificationsFor(final Account account, final InternalCallContext context) {
try {
final NotificationQueue checkOverdueQueue = notificationQueueService.getNotificationQueue(DefaultOverdueService.OVERDUE_SERVICE_NAME,
DefaultOverdueCheckNotifier.OVERDUE_CHECK_NOTIFIER_QUEUE);
transactionalSqlDao.execute(new EntitySqlDaoTransactionWrapper() {
@Override
public Void inTransaction(final EntitySqlDaoWrapperFactory entitySqlDaoWrapperFactory) throws Exception {
final Collection> futureNotifications = getFutureNotificationsForAccountAndOverdueableInTransaction(entitySqlDaoWrapperFactory, checkOverdueQueue, account
, context);
for (final NotificationEventWithMetadata notification : futureNotifications) {
checkOverdueQueue.removeNotificationFromTransaction(entitySqlDaoWrapperFactory.getSqlDao(), notification.getRecordId());
}
return null;
}
});
} catch (NoSuchNotificationQueue e) {
log.error("Attempting to clear items from a non-existent queue (DefaultOverdueCheck).", e);
}
}
@VisibleForTesting
Collection> getFutureNotificationsForAccountAndOverdueableInTransaction(final EntitySqlDaoWrapperFactory entitySqlDaoWrapperFactory,
final NotificationQueue checkOverdueQueue,
final Account account,
final InternalCallContext context) {
final List> notifications = checkOverdueQueue.getFutureNotificationFromTransactionForSearchKey1(OverdueCheckNotificationKey.class, context.getAccountRecordId(), entitySqlDaoWrapperFactory.getSqlDao());
final Collection> notificationsFilterered = Collections2.filter(notifications, new Predicate>() {
@Override
public boolean apply(@Nullable final NotificationEventWithMetadata input) {
final OverdueCheckNotificationKey notificationKey = input.getEvent();
return (account.getId().equals(notificationKey.getUuidKey()));
}
});
return notificationsFilterered;
}
}
