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 accord.primitives;
  
  import java.util.Arrays;
  
  import accord.api.RoutingKey;
  import accord.utils.Invariants;
  import accord.utils.UnhandledEnum;
  
  import static accord.primitives.AbstractRanges.UnionMode.MERGE_OVERLAPPING;
  import static accord.utils.Invariants.illegalArgument;
  import static accord.utils.Invariants.illegalState;
  
  /**
   * A slice of a Route that covers
   */
  public class PartialRangeRoute extends RangeRoute implements PartialRoute<Range>
  {
      public static class SerializationSupport
      {
          public static PartialRangeRoute create(RoutingKey homeKey, Range[] ranges)
          {
              return new PartialRangeRoute(homeKey, ranges);
          }
      }
  
      public PartialRangeRoute(RoutingKey homeKey, Range[] ranges)
      {
          super(homeKey, ranges);
      }
  
      @Override
      public UnseekablesKind kind()
      {
          return UnseekablesKind.PartialRangeRoute;
      }
  
      @Override
      public Route<Range> with(Participants<Range> that)
      {
          Unseekables.UnseekablesKind kind = that.kind();
          switch (kind)
          {
              default: throw new UnhandledEnum(kind);
              case FullKeyRoute:
              case PartialKeyRoute:
              case RoutingKeys:
                  throw illegalState("Incompatible route/participants: %s vs %s", kind(), kind);
  
              case FullRangeRoute:
                  return (FullRangeRoute) that;
  
              case PartialRangeRoute:
                  return union((PartialRangeRoute) that);
  
              case RoutingRanges:
                  return union((AbstractRanges) that);
          }
      }
  
      @Override
      public Route<Range> slice(int from, int to)
      {
          if (from == 0 && to == size())
              return this;
          return new PartialRangeRoute(homeKey, Arrays.copyOfRange(ranges, from, to));
      }
  
      @Override
      public FullRoute<?> toRoute(RoutingKey homeKey)
      {
          throw new UnsupportedOperationException("Already a route!");
      }
  
      @Override
      public PartialRangeRoute with(PartialRoute<Range> that)
      {
          if (!(that instanceof PartialRangeRoute))
              throw illegalArgument("Unexpected PartialRoute<Range> type: " + (that == null ? null : that.getClass()));
  
          return union((PartialRangeRoute) that);
      }
  
      public PartialRangeRoute union(PartialRangeRoute that)
      {
          Invariants.require(homeKey.equals(that.homeKey));
          return union(MERGE_OVERLAPPING, this, that, this, that, (in1, in2, ranges) -> {
              if (in1.ranges == ranges) return in1;
              if (in2.ranges == ranges) return in2;
              return new PartialRangeRoute(in1.homeKey, ranges);
          });
      }
  
      public PartialRangeRoute union(AbstractRanges that)
      {
          return union(MERGE_OVERLAPPING, this, that, this, homeKey, (in, homeKey, ranges) -> in.ranges == ranges ? in : new PartialRangeRoute(homeKey, ranges));
      }
  }
  