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/*
 *
 * Copyright 2019 PingCAP, Inc.
 *
 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package com.pingcap.tikv;

import java.sql.Timestamp;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

/** Extend joda DateTime to support micro second */
public class ExtendedDateTime {

  private final DateTime dateTime;
  private final int microsOfMillis;
  private static final DateTimeZone LOCAL_TIME_ZOME = DateTimeZone.getDefault();
  private static final DateTimeFormatter DATE_TIME_FORMATTER =
      DateTimeFormat.forPattern("yyyy-MM-dd HH:mm:ss.S").withZone(LOCAL_TIME_ZOME);

  /**
   * if timestamp = 2019-11-11 11:11:11 123456, then dateTime = 2019-11-11 11:11:11 123
   * microInMillis = 456
   *
   * @param dateTime
   * @param microsOfMillis
   */
  public ExtendedDateTime(DateTime dateTime, int microsOfMillis) {
    this.dateTime = dateTime;
    this.microsOfMillis = microsOfMillis;
  }

  public ExtendedDateTime(DateTime dateTime) {
    this.dateTime = dateTime;
    this.microsOfMillis = 0;
  }

  public DateTime getDateTime() {
    return dateTime;
  }

  public int getMicrosOfSeconds() {
    return dateTime.getMillisOfSecond() * 1000 + microsOfMillis;
  }

  public int getMicrosOfMillis() {
    return microsOfMillis;
  }

  public Timestamp toTimeStamp() {
    Timestamp timestamp = Timestamp.valueOf(dateTime.toString(DATE_TIME_FORMATTER));
    timestamp.setNanos(dateTime.getMillisOfSecond() * 1000000 + microsOfMillis * 1000);
    return timestamp;
  }
}