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+/*%0A * Licensed to the Apache Software Foundation (ASF) under one%0A * or more contributor license agreements.  See the NOTICE file%0A * distributed with this work for additional information%0A * regarding copyright ownership.  The ASF licenses this file%0A * to you under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance%0A * with the License.  You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0Apackage org.apache.flink.api.common.time;%0A%0Aimport org.apache.flink.annotation.Internal;%0A%0Aimport java.time.Duration;%0A%0A/**%0A * This class stores a deadline, as obtained via %7B@link #now()%7D or from %7B@link #plus(Duration)%7D.%0A */%0A@Internal%0Apublic class Deadline %7B%0A%09private final long timeNanos;%0A%0A%09private Deadline(Duration time) %7B%0A%09%09this.timeNanos = time.toNanos();%0A%09%7D%0A%0A%09public Deadline plus(Duration other) %7B%0A%09%09return new Deadline(Duration.ofNanos(timeNanos).plus(other));%0A%09%7D%0A%0A%09/**%0A%09 * Returns the time left between the deadline and now. The result is negative if the deadline%0A%09 * has passed.%0A%09 */%0A%09public Duration timeLeft() %7B%0A%09%09return Duration.ofNanos(timeNanos).minus(Duration.ofNanos(System.nanoTime()));%0A%09%7D%0A%0A%09/**%0A%09 * Returns whether there is any time left between the deadline and now.%0A%09 */%0A%09public boolean hasTimeLeft() %7B%0A%09%09return !isOverdue();%0A%09%7D%0A%0A%09/**%0A%09 * Determines whether the deadline is in the past, i.e. whether the time left is negative.%0A%09 */%0A%09public boolean isOverdue() %7B%0A%09%09return timeNanos - System.nanoTime() %3C 0;%0A%09%7D%0A%0A%09/**%0A%09 * Constructs a %7B@link Deadline%7D that has now as the deadline. Use this and then extend via%0A%09 * %7B@link #plus(Duration)%7D to specify a deadline in the future.%0A%09 */%0A%09public static Deadline now() %7B%0A%09%09return new Deadline(Duration.ofNanos(System.nanoTime()));%0A%09%7D%0A%7D%0A

Add our own Deadline implementation