content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.alibaba.nacos.config.server.service;
  
  import com.alibaba.nacos.config.server.utils.event.EventDispatcher.Event;
  import org.apache.commons.lang3.StringUtils;
  
  /**
   * 指数据发布事件。
   *
   * @author Nacos
   */
  public class ConfigDataChangeEvent implements Event {
  
      final public boolean isBeta;
      final public String dataId;
      final public String group;
      final public String tenant;
      final public String tag;
      final public long lastModifiedTs;
  
      public ConfigDataChangeEvent(String dataId, String group, long gmtModified) {
          this(false, dataId, group, gmtModified);
      }
  
      public ConfigDataChangeEvent(boolean isBeta, String dataId, String group, String tenant, long gmtModified) {
          if (null == dataId || null == group) {
              throw new IllegalArgumentException();
          }
          this.isBeta = isBeta;
          this.dataId = dataId;
          this.group = group;
          this.tenant = tenant;
          this.tag = null;
          this.lastModifiedTs = gmtModified;
      }
  
      public ConfigDataChangeEvent(boolean isBeta, String dataId, String group, long gmtModified) {
          this(isBeta, dataId, group, StringUtils.EMPTY, gmtModified);
      }
  
      public ConfigDataChangeEvent(boolean isBeta, String dataId, String group, String tenant, String tag,
                                   long gmtModified) {
          if (null == dataId || null == group) {
              throw new IllegalArgumentException();
          }
          this.isBeta = isBeta;
          this.dataId = dataId;
          this.group = group;
          this.tenant = tenant;
          this.tag = tag;
          this.lastModifiedTs = gmtModified;
      }
  
  }
  