| /* |
| * 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.Objects; |
| import java.util.SortedMap; |
| import java.util.TreeMap; |
| |
| import org.apache.ambari.server.agent.stomp.dto.Hashable; |
| import org.apache.ambari.server.agent.stomp.dto.TopologyCluster; |
| |
| import com.fasterxml.jackson.annotation.JsonInclude; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| |
| /** |
| * Contains info about clusters topology update. This update will be sent to all subscribed recipients. |
| * Is used to messaging to UI. |
| */ |
| @JsonInclude(JsonInclude.Include.NON_NULL) |
| public class TopologyUpdateEvent extends STOMPEvent implements Hashable { |
| |
| /** |
| * Map of clusters topologies by cluster ids. |
| */ |
| @JsonProperty("clusters") |
| private final SortedMap<String, TopologyCluster> clusters; |
| |
| /** |
| * Actual version hash. |
| */ |
| private String hash; |
| |
| /** |
| * Type of update, is used to differ full current topology (CREATE), adding new or update existing topology |
| * elements (UPDATE) and removing existing topology elements (DELETE). |
| */ |
| private final UpdateEventType eventType; |
| |
| public TopologyUpdateEvent(SortedMap<String, TopologyCluster> clusters, UpdateEventType eventType) { |
| this(Type.UI_TOPOLOGY, clusters, null, eventType); |
| } |
| |
| public TopologyUpdateEvent(Type type, SortedMap<String, TopologyCluster> clusters, String hash, UpdateEventType eventType) { |
| super(type); |
| this.clusters = clusters; |
| this.hash = hash; |
| this.eventType = eventType; |
| } |
| |
| public SortedMap<String, TopologyCluster> getClusters() { |
| return clusters; |
| } |
| |
| public TopologyUpdateEvent deepCopy() { |
| SortedMap<String, TopologyCluster> copiedClusters = new TreeMap<>(); |
| for (Map.Entry<String, TopologyCluster> topologyClusterEntry : getClusters().entrySet()) { |
| copiedClusters.put(topologyClusterEntry.getKey(), topologyClusterEntry.getValue().deepCopyCluster()); |
| } |
| TopologyUpdateEvent copiedEvent = new TopologyUpdateEvent(copiedClusters, getEventType()); |
| copiedEvent.setHash(getHash()); |
| return copiedEvent; |
| } |
| |
| public UpdateEventType getEventType() { |
| return eventType; |
| } |
| |
| @Override |
| public String getHash() { |
| return hash; |
| } |
| |
| @Override |
| public void setHash(String hash) { |
| this.hash = hash; |
| } |
| |
| public static TopologyUpdateEvent emptyUpdate() { |
| return new TopologyUpdateEvent(null, null); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| TopologyUpdateEvent that = (TopologyUpdateEvent) o; |
| |
| return Objects.equals(eventType, that.eventType) && |
| Objects.equals(clusters, that.clusters); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(clusters, eventType); |
| } |
| } |