Aquarium

/*

 * Copyright 2011-2012 GRNET S.A. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or

 * without modification, are permitted provided that the following

 * conditions are met:

 *

 *   1. Redistributions of source code must retain the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer.

 *

 *   2. Redistributions in binary form must reproduce the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer in the documentation and/or other materials

 *      provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * The views and conclusions contained in the software and

 * documentation are those of the authors and should not be

 * interpreted as representing official policies, either expressed

 * or implied, of GRNET S.A.

 */

package gr.grnet.aquarium.util.date

import java.util.Date

import org.joda.time.MutableDateTime

/**

 *

 * @author Christos KK Loverdos <loverdos@gmail.com>

 */

final object TimeHelpers {

  @inline

  final def nowMillis() = System.currentTimeMillis()

  @inline

  final def nowDate = new Date(nowMillis())

  def secDiffOfMillis(ms0: Long, ms1: Long) = (ms1 - ms0).toDouble / 1000.0

  def timed[U](f: ⇒ U): (Long, Long, U) = {

    val ms0 = nowMillis()

    val u = f

    val ms1 = nowMillis()

    (ms0, ms1, u)

  }

  def toYYYYMMDDHHMMSSSSS(millis: Long): String = {

    new MutableDateCalc(millis).toYYYYMMDDHHMMSSSSS

  }

  def calcCalendarMonthDiff(fromMillis: Long, toMillis: Long): Int = {

    val fromDate = new MutableDateTime(fromMillis)

    val toDate = new MutableDateTime(toMillis)

    val fromYear  = fromDate.getYear

    val fromMonth = fromDate.getMonthOfYear

    val toYear = toDate.getYear

    val toMonth = toDate.getMonthOfYear

    val _from = fromYear * 12 + fromMonth

    val _to = toYear * 12 + toMonth

    _to - _from

  }

}