com.cedarsoftware.util.convert.BigDecimalConversions Maven / Gradle / Ivy
package com.cedarsoftware.util.convert;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Timestamp;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;
import java.util.UUID;
/**
* @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 BigDecimalConversions {
static final BigDecimal BILLION = BigDecimal.valueOf(1_000_000_000);
static final BigDecimal GRAND = BigDecimal.valueOf(1000);
private BigDecimalConversions() { }
static Calendar toCalendar(Object from, Converter converter) {
BigDecimal seconds = (BigDecimal) from;
BigDecimal millis = seconds.multiply(GRAND);
Calendar calendar = Calendar.getInstance(converter.getOptions().getTimeZone());
calendar.setTimeInMillis(millis.longValue());
return calendar;
}
static Instant toInstant(Object from, Converter converter) {
BigDecimal seconds = (BigDecimal) from;
BigDecimal nanos = seconds.remainder(BigDecimal.ONE);
return Instant.ofEpochSecond(seconds.longValue(), nanos.movePointRight(9).longValue());
}
static Duration toDuration(Object from, Converter converter) {
BigDecimal seconds = (BigDecimal) from;
BigDecimal nanos = seconds.remainder(BigDecimal.ONE);
return Duration.ofSeconds(seconds.longValue(), nanos.movePointRight(9).longValue());
}
static LocalTime toLocalTime(Object from, Converter converter) {
BigDecimal seconds = (BigDecimal) from;
BigDecimal nanos = seconds.multiply(BILLION);
try {
return LocalTime.ofNanoOfDay(nanos.longValue());
} catch (Exception e) {
throw new IllegalArgumentException("Input value [" + seconds.toPlainString() + "] for conversion to LocalTime must be >= 0 && <= 86399.999999999", e);
}
}
static LocalDate toLocalDate(Object from, Converter converter) {
return toZonedDateTime(from, converter).toLocalDate();
}
static LocalDateTime toLocalDateTime(Object from, Converter converter) {
return toZonedDateTime(from, converter).toLocalDateTime();
}
static OffsetDateTime toOffsetDateTime(Object from, Converter converter) {
return toZonedDateTime(from, converter).toOffsetDateTime();
}
static ZonedDateTime toZonedDateTime(Object from, Converter converter) {
return toInstant(from, converter).atZone(converter.getOptions().getZoneId());
}
static Date toDate(Object from, Converter converter) {
return Date.from(toInstant(from, converter));
}
static java.sql.Date toSqlDate(Object from, Converter converter) {
return new java.sql.Date(toInstant(from, converter).toEpochMilli());
}
static Timestamp toTimestamp(Object from, Converter converter) {
return Timestamp.from(toInstant(from, converter));
}
static BigInteger toBigInteger(Object from, Converter converter) {
return ((BigDecimal)from).toBigInteger();
}
static String toString(Object from, Converter converter) {
return ((BigDecimal) from).stripTrailingZeros().toPlainString();
}
static UUID toUUID(Object from, Converter converter) {
BigInteger bigInt = ((BigDecimal) from).toBigInteger();
return BigIntegerConversions.toUUID(bigInt, converter);
}
static BigDecimal secondsAndNanosToDouble(long seconds, long nanos) {
return BigDecimal.valueOf(seconds).add(BigDecimal.valueOf(nanos, 9));
}
}