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.simulator.cluster;
  
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  import java.util.stream.Collectors;
  
  import org.apache.cassandra.dht.Range;
  import org.apache.cassandra.dht.Token;
  import org.apache.cassandra.tcm.ClusterMetadata;
  import org.apache.cassandra.tcm.membership.NodeId;
  
  import static org.apache.cassandra.config.DatabaseDescriptor.getPartitioner;
  import static org.apache.cassandra.utils.FBUtilities.getBroadcastAddressAndPort;
  
  public class Utils
  {
      static Token currentToken()
      {
          ClusterMetadata metadata = ClusterMetadata.current();
          NodeId nodeId = metadata.directory.peerId(getBroadcastAddressAndPort());
          return metadata.tokenMap.tokens(nodeId).iterator().next();
      }
  
      static List<Token> parseTokens(Collection<String> tokens)
      {
          return tokens.stream()
                  .map(Utils::parseToken)
                  .collect(Collectors.toList());
      }
  
      static List<Range<Token>> parseTokenRanges(Collection<Map.Entry<String, String>> tokenRanges)
      {
          return tokenRanges.stream()
                  .map(Utils::parseTokenRange)
                  .collect(Collectors.toList());
      }
  
      static Token parseToken(String token)
      {
          return getPartitioner().getTokenFactory().fromString(token);
      }
  
      static Range<Token> parseTokenRange(Map.Entry<String, String> tokenRange)
      {
          return parseTokenRange(tokenRange.getKey(), tokenRange.getValue());
      }
  
      static Range<Token> parseTokenRange(String exclusiveLowerBound, String inclusiveUpperBound)
      {
          return new Range<>(parseToken(exclusiveLowerBound), parseToken(inclusiveUpperBound));
      }
  }
  