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.beam.runners.dataflow.worker.windmill.state;
  
  import com.google.auto.value.AutoValue;
  import java.util.Comparator;
  import org.apache.beam.sdk.values.TimestampedValue;
  import org.joda.time.Instant;
  
  @AutoValue
  abstract class TimestampedValueWithId<T> {
    public static final Comparator<TimestampedValueWithId<?>> COMPARATOR =
        Comparator.<TimestampedValueWithId<?>, Instant>comparing(v -> v.getValue().getTimestamp())
            .thenComparingLong(TimestampedValueWithId::getId);
  
    static <T> TimestampedValueWithId<T> of(TimestampedValue<T> value, long id) {
      return new AutoValue_TimestampedValueWithId<>(value, id);
    }
  
    static <T> TimestampedValueWithId<T> bound(Instant ts) {
      return of(TimestampedValue.of(null, ts), Long.MIN_VALUE);
    }
  
    abstract TimestampedValue<T> getValue();
  
    abstract long getId();
  }
  