NotificationMessage.java

/*
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * 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 org.kaaproject.kaa.server.operations.service.akka.messages.core.topic;

import org.kaaproject.kaa.common.dto.NotificationDto;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;


/**
 * The Class NotificationMessage.
 */
public class NotificationMessage {

  /**
   * The notifications.
   */
  private final List<NotificationDto> notifications;

  /**
   * The unicast notification id.
   */
  private final String unicastNotificationId;

  /**
   * Instantiates a new notification message.
   *
   * @param notifications         the notifications
   * @param unicastNotificationId the unicast notification id
   */
  private NotificationMessage(List<NotificationDto> notifications, String unicastNotificationId) {
    super();
    this.notifications = Collections.unmodifiableList(notifications);
    this.unicastNotificationId = unicastNotificationId;
  }

  /**
   * From notifications.
   *
   * @param notifications the notifications
   * @return the notification message
   */
  public static NotificationMessage fromNotifications(List<NotificationDto> notifications) {
    return new NotificationMessage(notifications, null);
  }

  /**
   * From unicast id.
   *
   * @param unicastNotificationId the unicast notification id
   * @return the notification message
   */
  public static NotificationMessage fromUnicastId(String unicastNotificationId) {
    return new NotificationMessage(new ArrayList<NotificationDto>(), unicastNotificationId);
  }

  /**
   * Gets the notifications.
   *
   * @return the notifications
   */
  public List<NotificationDto> getNotifications() {
    return notifications;
  }

  /**
   * Gets the unicast notification id.
   *
   * @return the unicast notification id
   */
  public String getUnicastNotificationId() {
    return unicastNotificationId;
  }

  @Override
  public String toString() {
    return "NotificationMessage [notifications=" + notifications + ", unicastNotificationId="
           + unicastNotificationId + "]";
  }
}