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.service.accord;
  
  import org.apache.cassandra.cache.IMeasurableMemory;
  import org.apache.cassandra.utils.ByteArrayUtil;
  import org.apache.cassandra.utils.ObjectSizes;
  
  public class IndexRange implements Comparable<IndexRange>, IMeasurableMemory
  {
      private static final long EMPTY_SIZE = ObjectSizes.measure(new IndexRange(null, null));
  
      public final byte[] start, end;
  
      public IndexRange(byte[] start, byte[] end)
      {
          this.start = start;
          this.end = end;
      }
  
      @Override
      public int compareTo(IndexRange other)
      {
          int rc = ByteArrayUtil.compareUnsigned(start, 0, other.start, 0, start.length);
          if (rc == 0)
              rc = ByteArrayUtil.compareUnsigned(end, 0, other.end, 0, end.length);
          return rc;
      }
  
      @Override
      public long unsharedHeapSize()
      {
          return EMPTY_SIZE + ObjectSizes.sizeOfArray(start) * 2;
      }
  
      public boolean intersects(byte[] start, byte[] end)
      {
          if (ByteArrayUtil.compareUnsigned(this.start, 0, end, 0, end.length) >= 0)
              return false;
          if (ByteArrayUtil.compareUnsigned(this.end, 0, start, 0, start.length) <= 0)
              return false;
          return true;
      }
  }
  