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.cassandra.sidecar.common.response;
  
  import java.math.BigInteger;
  import java.util.Comparator;
  import java.util.PriorityQueue;
  
  import org.apache.cassandra.sidecar.common.response.data.RingEntry;
  
  /**
   * Json format for ring response. It also sorts the entries on adding.
   */
  public class RingResponse extends PriorityQueue<RingEntry>
  {
      // sort by datacenter first and then by token
      private static final Comparator<RingEntry> DEFAULT_COMPARATOR =
                Comparator.<RingEntry, String>comparing(RingEntry::datacenter)
                          .thenComparing(e -> new BigInteger(e.token()));
  
      // used by json deserialization
      public RingResponse()
      {
          this(4);
      }
  
      public RingResponse(int capacity)
      {
          super(capacity, DEFAULT_COMPARATOR);
      }
  }
  