content: /*
   * 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.ambari.server.events;
  
  import java.util.Collections;
  import java.util.Map;
  import java.util.Objects;
  
  import org.apache.ambari.server.agent.stomp.dto.Hashable;
  import org.apache.ambari.server.agent.stomp.dto.HostLevelParamsCluster;
  
  import com.fasterxml.jackson.annotation.JsonInclude;
  import com.fasterxml.jackson.annotation.JsonProperty;
  
  /**
   * Contains info about host level parameters for single host. This update will be sent to single host only.
   * Host can be identified by AgentConfigsUpdateEvent#hostName.
   */
  @JsonInclude(JsonInclude.Include.NON_NULL)
  public class HostLevelParamsUpdateEvent extends STOMPHostEvent implements Hashable {
  
    /**
     * Actual version hash.
     */
    private String hash;
  
    /**
     * Host identifier.
     */
    private final Long hostId;
  
    /**
     * Host level parameters by clusters.
     */
    @JsonProperty("clusters")
    private final Map<String, HostLevelParamsCluster> hostLevelParamsClusters;
  
    public HostLevelParamsUpdateEvent(Long hostId, Map<String, HostLevelParamsCluster> hostLevelParamsClusters) {
      super(Type.HOSTLEVELPARAMS);
      this.hostId = hostId;
      this.hostLevelParamsClusters = hostLevelParamsClusters;
    }
  
    public HostLevelParamsUpdateEvent(Long hostId, String clusterId, HostLevelParamsCluster hostLevelParamsCluster) {
      this(hostId, Collections.singletonMap(clusterId, hostLevelParamsCluster));
    }
  
    @Override
    public String getHash() {
      return hash;
    }
  
    @Override
    public void setHash(String hash) {
      this.hash = hash;
    }
  
    public static HostLevelParamsUpdateEvent emptyUpdate() {
      return new HostLevelParamsUpdateEvent(null, null);
    }
  
    @Override
    public Long getHostId() {
      return hostId;
    }
  
    public Map<String, HostLevelParamsCluster> getHostLevelParamsClusters() {
      return hostLevelParamsClusters == null ? null : Collections.unmodifiableMap(hostLevelParamsClusters);
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;
  
      HostLevelParamsUpdateEvent that = (HostLevelParamsUpdateEvent) o;
  
      return Objects.equals(hostId, that.hostId) &&
        Objects.equals(hostLevelParamsClusters, that.hostLevelParamsClusters);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(hostId, hostLevelParamsClusters);
    }
  }
  