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The official Couchbase JVM Core IO Library
/*
* Copyright 2023 Couchbase, Inc.
*
* Licensed 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
*
* https://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 com.couchbase.client.core.util;
import com.couchbase.client.core.annotation.Stability;
import java.time.Duration;
import java.util.Optional;
import static java.util.Objects.requireNonNull;
@Stability.Internal
public class Deadline {
private final NanoTimestamp start = NanoTimestamp.now();
private final Duration duration;
private Deadline(Duration duration) {
this.duration = requireNonNull(duration);
}
public static Deadline of(Duration duration) {
return new Deadline(duration);
}
public static Deadline of(Duration duration, double scale) {
return new Deadline(Duration.ofNanos((long) (duration.toNanos() * scale)));
}
public boolean exceeded() {
return start.hasElapsed(duration);
}
public Optional remaining() {
Duration d = duration.minus(start.elapsed());
return d.isZero() || d.isNegative() ? Optional.empty() : Optional.of(d);
}
@Override
public String toString() {
return "Deadline{" +
"duration=" + duration +
", remaining=" + remaining() +
'}';
}
}