solr/core/src/java/org/apache/solr/cluster/events/ClusterPropertiesChangedEvent.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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 org.apache.solr.cluster.events;

import java.io.IOException;
import java.util.Map;

/**
 * Event generated when {@link org.apache.solr.common.cloud.ZkStateReader#CLUSTER_PROPS} is modified.
 */
public interface ClusterPropertiesChangedEvent extends ClusterEvent {

  @Override
  default EventType getType() {
    return EventType.CLUSTER_PROPERTIES_CHANGED;
  }

  Map<String, Object> getNewClusterProperties();

  @Override
  default void writeMap(EntryWriter ew) throws IOException {
    ClusterEvent.super.writeMap(ew);
    ew.put("newClusterProperties", getNewClusterProperties());
  }
}