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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.alibaba.ververica.cdc.debezium.utils;
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.ZoneId;
import java.time.ZoneOffset;
import java.util.concurrent.TimeUnit;
/**
* Temporal conversion constants.
*/
public final class TemporalConversions {
static final long MILLISECONDS_PER_SECOND = TimeUnit.SECONDS.toMillis(1);
static final long MICROSECONDS_PER_SECOND = TimeUnit.SECONDS.toMicros(1);
static final long MICROSECONDS_PER_MILLISECOND = TimeUnit.MILLISECONDS.toMicros(1);
static final long NANOSECONDS_PER_MILLISECOND = TimeUnit.MILLISECONDS.toNanos(1);
static final long NANOSECONDS_PER_MICROSECOND = TimeUnit.MICROSECONDS.toNanos(1);
static final long NANOSECONDS_PER_SECOND = TimeUnit.SECONDS.toNanos(1);
static final long NANOSECONDS_PER_DAY = TimeUnit.DAYS.toNanos(1);
static final long SECONDS_PER_DAY = TimeUnit.DAYS.toSeconds(1);
static final long MICROSECONDS_PER_DAY = TimeUnit.DAYS.toMicros(1);
static final LocalDate EPOCH = LocalDate.ofEpochDay(0);
private TemporalConversions() {
}
public static LocalDate toLocalDate(Object obj) {
if (obj == null) {
return null;
}
if (obj instanceof LocalDate) {
return (LocalDate) obj;
}
if (obj instanceof LocalDateTime) {
return ((LocalDateTime) obj).toLocalDate();
}
if (obj instanceof java.sql.Date) {
return ((java.sql.Date) obj).toLocalDate();
}
if (obj instanceof java.sql.Time) {
throw new IllegalArgumentException("Unable to convert to LocalDate from a java.sql.Time value '" + obj + "'");
}
if (obj instanceof java.util.Date) {
java.util.Date date = (java.util.Date) obj;
return LocalDate.of(date.getYear() + 1900,
date.getMonth() + 1,
date.getDate());
}
if (obj instanceof Long) {
// Assume the value is the epoch day number
return LocalDate.ofEpochDay((Long) obj);
}
if (obj instanceof Integer) {
// Assume the value is the epoch day number
return LocalDate.ofEpochDay((Integer) obj);
}
throw new IllegalArgumentException("Unable to convert to LocalDate from unexpected value '" + obj + "' of type " + obj.getClass().getName());
}
public static LocalTime toLocalTime(Object obj) {
if (obj == null) {
return null;
}
if (obj instanceof LocalTime) {
return (LocalTime) obj;
}
if (obj instanceof LocalDateTime) {
return ((LocalDateTime) obj).toLocalTime();
}
if (obj instanceof java.sql.Date) {
throw new IllegalArgumentException("Unable to convert to LocalDate from a java.sql.Date value '" + obj + "'");
}
if (obj instanceof java.sql.Time) {
java.sql.Time time = (java.sql.Time) obj;
long millis = (int) (time.getTime() % MILLISECONDS_PER_SECOND);
int nanosOfSecond = (int) (millis * NANOSECONDS_PER_MILLISECOND);
return LocalTime.of(time.getHours(),
time.getMinutes(),
time.getSeconds(),
nanosOfSecond);
}
if (obj instanceof java.sql.Timestamp) {
java.sql.Timestamp timestamp = (java.sql.Timestamp) obj;
return LocalTime.of(timestamp.getHours(),
timestamp.getMinutes(),
timestamp.getSeconds(),
timestamp.getNanos());
}
if (obj instanceof java.util.Date) {
java.util.Date date = (java.util.Date) obj;
long millis = (int) (date.getTime() % MILLISECONDS_PER_SECOND);
int nanosOfSecond = (int) (millis * NANOSECONDS_PER_MILLISECOND);
return LocalTime.of(date.getHours(),
date.getMinutes(),
date.getSeconds(),
nanosOfSecond);
}
if (obj instanceof Duration) {
Long value = ((Duration) obj).toNanos();
if (value >= 0 && value <= NANOSECONDS_PER_DAY) {
return LocalTime.ofNanoOfDay(value);
}
else {
throw new IllegalArgumentException("Time values must use number of milliseconds greater than 0 and less than 86400000000000");
}
}
throw new IllegalArgumentException("Unable to convert to LocalTime from unexpected value '" + obj + "' of type " + obj.getClass().getName());
}
public static LocalDateTime toLocalDateTime(Object obj, ZoneId serverTimeZone) {
if (obj == null) {
return null;
}
if (obj instanceof OffsetDateTime) {
return ((OffsetDateTime) obj).toLocalDateTime();
}
if (obj instanceof Instant) {
return ((Instant) obj).atOffset(ZoneOffset.UTC).toLocalDateTime();
}
if (obj instanceof LocalDateTime) {
return (LocalDateTime) obj;
}
if (obj instanceof LocalDate) {
LocalDate date = (LocalDate) obj;
return LocalDateTime.of(date, LocalTime.MIDNIGHT);
}
if (obj instanceof LocalTime) {
LocalTime time = (LocalTime) obj;
return LocalDateTime.of(EPOCH, time);
}
if (obj instanceof java.sql.Date) {
java.sql.Date sqlDate = (java.sql.Date) obj;
LocalDate date = sqlDate.toLocalDate();
return LocalDateTime.of(date, LocalTime.MIDNIGHT);
}
if (obj instanceof java.sql.Time) {
LocalTime localTime = toLocalTime(obj);
return LocalDateTime.of(EPOCH, localTime);
}
if (obj instanceof java.sql.Timestamp) {
java.sql.Timestamp timestamp = (java.sql.Timestamp) obj;
return LocalDateTime.of(timestamp.getYear() + 1900,
timestamp.getMonth() + 1,
timestamp.getDate(),
timestamp.getHours(),
timestamp.getMinutes(),
timestamp.getSeconds(),
timestamp.getNanos());
}
if (obj instanceof java.util.Date) {
java.util.Date date = (java.util.Date) obj;
long millis = (int) (date.getTime() % MILLISECONDS_PER_SECOND);
if (millis < 0) {
millis = MILLISECONDS_PER_SECOND + millis;
}
int nanosOfSecond = (int) (millis * NANOSECONDS_PER_MILLISECOND);
return LocalDateTime.of(date.getYear() + 1900,
date.getMonth() + 1,
date.getDate(),
date.getHours(),
date.getMinutes(),
date.getSeconds(),
nanosOfSecond);
}
if (obj instanceof String) {
String str = (String) obj;
// TIMESTAMP type is encoded in string type
Instant instant = Instant.parse(str);
return LocalDateTime.ofInstant(instant, serverTimeZone);
}
throw new IllegalArgumentException("Unable to convert to LocalDateTime from unexpected value '" + obj + "' of type " + obj.getClass().getName());
}
public static long toEpochMicros(Instant instant) {
return TimeUnit.SECONDS.toMicros(instant.getEpochSecond()) + TimeUnit.NANOSECONDS.toMicros(instant.getNano());
}
public static Instant toInstantFromMicros(long microsSinceEpoch) {
return Instant.ofEpochSecond(
TimeUnit.MICROSECONDS.toSeconds(microsSinceEpoch),
TimeUnit.MICROSECONDS.toNanos(microsSinceEpoch % TimeUnit.SECONDS.toMicros(1)));
}
}
