com.smoketurner.notification.application.riak.NotificationListDeletion Maven / Gradle / Ivy
/**
* Copyright 2015 Smoke Turner, LLC.
*
* Licensed 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.smoketurner.notification.application.riak;
import java.util.Collection;
import javax.annotation.Nonnull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.basho.riak.client.api.commands.kv.UpdateValue;
import com.google.common.base.Preconditions;
public class NotificationListDeletion extends UpdateValue.Update {
private static final Logger LOGGER = LoggerFactory.getLogger(NotificationListDeletion.class);
private final Collection ids;
/**
* Constructor
*
* @param ids Notification IDs to delete
*/
public NotificationListDeletion(@Nonnull final Collection ids) {
this.ids = Preconditions.checkNotNull(ids);
}
@Override
public NotificationListObject apply(NotificationListObject original) {
if (original == null) {
LOGGER.debug("original is null, creating new notification list");
original = new NotificationListObject();
}
original.deleteNotifications(ids);
return original;
}
}