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A clock-based ExecutorService using Java 8 Time. For when Quartz is just too heavy.

There is a newer version: 0.0.3

/*
 * Copyright 2016 Aaron Lane
 *
 * 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 au.id.ajlane.concurrent;

import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalUnit;
import java.util.concurrent.TimeUnit;

/**
 * Utilities for working with values of {@link java.util.concurrent.TimeUnit}.
 */
public abstract class TimeUnits
{
    /**
     * Converts a {@link java.util.concurrent.TimeUnit} to the corresponding {@link java.time.temporal.TemporalUnit}.
     *
     * @param units
     *     The units to convert.
     *
     * @return The corresponding {@link java.time.temporal.TemporalUnit}.
     */
    public static TemporalUnit toTemporalUnit(final TimeUnit units)
    {
        switch (units)
        {
            case DAYS:
                return ChronoUnit.DAYS;
            case HOURS:
                return ChronoUnit.HOURS;
            case MINUTES:
                return ChronoUnit.MINUTES;
            case SECONDS:
                return ChronoUnit.SECONDS;
            case MILLISECONDS:
                return ChronoUnit.MILLIS;
            case MICROSECONDS:
                return ChronoUnit.MICROS;
            case NANOSECONDS:
                return ChronoUnit.NANOS;
            default:
                assert false;
                throw new UnsupportedOperationException(units.name());
        }
    }

    private TimeUnits() throws InstantiationException
    {
        throw new InstantiationException("This class cannot be instantiated.");
    }
}