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.kafka.server.util;
  
  import org.apache.kafka.common.utils.Time;
  
  import java.math.BigInteger;
  import java.util.Objects;
  import java.util.concurrent.TimeUnit;
  
  
  public class Deadline {
      private final long nanoseconds;
  
      public static Deadline fromMonotonicNanoseconds(
          long nanoseconds
      ) {
          return new Deadline(nanoseconds);
      }
  
      public static Deadline fromDelay(
          Time time,
          long delay,
          TimeUnit timeUnit
      ) {
          if (delay < 0) {
              throw new RuntimeException("Negative delays are not allowed.");
          }
          long nowNs = time.nanoseconds();
          BigInteger deadlineNs = BigInteger.valueOf(nowNs).
                  add(BigInteger.valueOf(timeUnit.toNanos(delay)));
          if (deadlineNs.compareTo(BigInteger.valueOf(Long.MAX_VALUE)) >= 0) {
              return new Deadline(Long.MAX_VALUE);
          } else {
              return new Deadline(deadlineNs.longValue());
          }
      }
  
      private Deadline(long nanoseconds) {
          this.nanoseconds = nanoseconds;
      }
  
      public long nanoseconds() {
          return nanoseconds;
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(nanoseconds);
      }
  
      @Override
      public boolean equals(Object o) {
          if (o == null || !(o.getClass().equals(this.getClass()))) return false;
          Deadline other = (Deadline) o;
          return nanoseconds == other.nanoseconds;
      }
  }
  