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/*
 * Copyright (C) 2019 The Guava Authors
 *
 * 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
 *
 * 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 com.google.common.util.concurrent;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.time.Duration;

/** This class is for {@code com.google.common.util.concurrent} use only! */
@J2ktIncompatible
@GwtIncompatible // java.time.Duration
@ElementTypesAreNonnullByDefault
final class Internal {

  /**
   * Returns the number of nanoseconds of the given duration without throwing or overflowing.
   *
   * 

Instead of throwing {@link ArithmeticException}, this method silently saturates to either * {@link Long#MAX_VALUE} or {@link Long#MIN_VALUE}. This behavior can be useful when decomposing * a duration in order to call a legacy API which requires a {@code long, TimeUnit} pair. */ static long toNanosSaturated(Duration duration) { // Using a try/catch seems lazy, but the catch block will rarely get invoked (except for // durations longer than approximately +/- 292 years). try { return duration.toNanos(); } catch (ArithmeticException tooBig) { return duration.isNegative() ? Long.MIN_VALUE : Long.MAX_VALUE; } } private Internal() {} }





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