com.cedarsoftware.util.convert.OffsetTimeConversions Maven / Gradle / Ivy

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package com.cedarsoftware.util.convert;

import java.math.BigDecimal;
import java.math.BigInteger;
import java.time.Instant;
import java.time.LocalDate;
import java.time.OffsetTime;
import java.time.format.DateTimeFormatter;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

/**
 * @author John DeRegnaucourt ([email protected])
 *         

 *         Copyright (c) Cedar Software LLC
 *         


 *         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
 *         


 *         License
 *         


 *         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.
 */
final class OffsetTimeConversions {
    private OffsetTimeConversions() {}

    static String toString(Object from, Converter converter) {
        OffsetTime offsetTime = (OffsetTime) from;
        return offsetTime.format(DateTimeFormatter.ISO_OFFSET_TIME);
    }

    static Map toMap(Object from, Converter converter) {
        OffsetTime ot = (OffsetTime) from;
        Map map = new LinkedHashMap<>();
        map.put(MapConversions.OFFSET_TIME, ot.toString());
        return map;
    }

    static int toInteger(Object from, Converter converter) {
        return (int) toLong(from, converter);
    }

    static long toLong(Object from, Converter converter) {
        OffsetTime ot = (OffsetTime) from;
        return ot.atDate(LocalDate.of(1970, 1, 1))
                .toInstant()
                .toEpochMilli();
    }

    static double toDouble(Object from, Converter converter) {
        OffsetTime ot = (OffsetTime) from;
        Instant epoch = getEpoch(ot);
        return epoch.getEpochSecond() + (epoch.getNano() / 1_000_000_000.0);
    }

    static BigInteger toBigInteger(Object from, Converter converter) {
        OffsetTime ot = (OffsetTime) from;
        Instant epoch = getEpoch(ot);
        return BigInteger.valueOf(epoch.getEpochSecond())
                .multiply(BigIntegerConversions.BILLION)
                .add(BigInteger.valueOf(epoch.getNano()));
    }

    static BigDecimal toBigDecimal(Object from, Converter converter) {
        OffsetTime ot = (OffsetTime) from;
        Instant epoch = getEpoch(ot);
        BigDecimal seconds = BigDecimal.valueOf(epoch.getEpochSecond());
        BigDecimal nanos = BigDecimal.valueOf(epoch.getNano())
                .divide(BigDecimalConversions.BILLION);
        return seconds.add(nanos);
    }

    static AtomicInteger toAtomicInteger(Object from, Converter converter) {
        return new AtomicInteger((int) toLong(from, converter));
    }

    static AtomicLong toAtomicLong(Object from, Converter converter) {
        return new AtomicLong(toLong(from, converter));
    }

    private static Instant getEpoch(OffsetTime ot) {
        return ot.atDate(LocalDate.of(1970, 1, 1)).toInstant();
    }
}