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
   * <p/>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p/>
   * 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.Map;
  import java.util.SortedMap;
  
  import org.apache.ambari.server.agent.stomp.dto.Hashable;
  import org.apache.ambari.server.agent.stomp.dto.MetadataCluster;
  
  import com.fasterxml.jackson.annotation.JsonInclude;
  import com.fasterxml.jackson.annotation.JsonProperty;
  
  /**
   * Contains update info about metadata for all clusters. This update will be sent to all subscribed recipients.
   */
  @JsonInclude(JsonInclude.Include.NON_NULL)
  public class MetadataUpdateEvent extends STOMPEvent implements Hashable {
  
    /**
     * Id used to send parameters common to all clusters.
     */
    private static final String AMBARI_LEVEL_CLUSTER_ID = "-1";
  
    /**
     * Actual version hash.
     */
    private String hash;
  
    private final UpdateEventType eventType;
  
    /**
     * Map of metadatas for each cluster by cluster ids.
     */
    @JsonProperty("clusters")
    private final SortedMap<String, MetadataCluster> metadataClusters;
  
    private MetadataUpdateEvent() {
      super(Type.METADATA);
      metadataClusters = null;
      eventType = null;
    }
  
    public MetadataUpdateEvent(SortedMap<String, MetadataCluster> metadataClusters,
                               SortedMap<String, String> ambariLevelParams,
                               SortedMap<String, SortedMap<String, String>> metadataAgentConfigs,
                               UpdateEventType eventType) {
      super(Type.METADATA);
      this.metadataClusters = metadataClusters;
      if (ambariLevelParams != null) {
        this.metadataClusters.put(AMBARI_LEVEL_CLUSTER_ID, new MetadataCluster(null, null, false, ambariLevelParams, metadataAgentConfigs));
      }
      this.eventType = eventType;
    }
  
    public Map<String, MetadataCluster> getMetadataClusters() {
      return metadataClusters;
    }
  
    @Override
    public String getHash() {
      return hash;
    }
  
    @Override
    public void setHash(String hash) {
      this.hash = hash;
    }
  
    public UpdateEventType getEventType() {
      return eventType;
    }
  
    public static MetadataUpdateEvent emptyUpdate() {
      return new MetadataUpdateEvent();
    }
  
    @Override
    public boolean equals(Object o) {
      if (this == o) return true;
      if (o == null || getClass() != o.getClass()) return false;
  
      MetadataUpdateEvent that = (MetadataUpdateEvent) o;
  
      return metadataClusters != null ? metadataClusters.equals(that.metadataClusters) : that.metadataClusters == null;
    }
  
    @Override
    public int hashCode() {
      return metadataClusters != null ? metadataClusters.hashCode() : 0;
    }
  }
  