2 * Copyright 2011-2012 GRNET S.A. All rights reserved.
4 * Redistribution and use in source and binary forms, with or
5 * without modification, are permitted provided that the following
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
12 * 2. Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
24 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
27 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
30 * The views and conclusions contained in the software and
31 * documentation are those of the authors and should not be
32 * interpreted as representing official policies, either expressed
33 * or implied, of GRNET S.A.
36 package gr.grnet.aquarium.policy
38 import gr.grnet.aquarium.logic.accounting.dsl.Timeslot
39 import collection.mutable
43 * @author Christos KK Loverdos <loverdos@gmail.com>
44 * @author Prodromos Gerakios <pgerakios@grnet.gr>
47 case class EffectiveUnitPrice(unitPrice: Double, when: Option[(CronSpec,CronSpec)] = None) {
49 /* Split a timeslot T into two *sets* S and S2 consisting of timeslots such that
50 * (a) each element in S1,S2 is contained in T
51 * (b) for all x in S1 and y in S2 there is no overlap between x and y.
52 * (c) the union of all x in S1 and y S2 is T
53 * (d) the elements of S1 satisfy the cron spec ``when''
54 * (e) the elements of S2 do NOT satisfy the cron spec ``when''
56 def splitTimeslot(t:Timeslot) : (List[Timeslot],List[Timeslot])=
60 case Some((start,end)) =>
61 val result = new mutable.ListBuffer[Timeslot]()
63 while(start.nextValidDate(t,offset) match {
67 end.nextValidDate(t,d_start) match {
69 result += Timeslot(d_start,t.to)
72 result += Timeslot(d_start,d_end)
78 val l1 = Timeslot mergeOverlaps l
79 val l2 = t nonOverlappingTimeslots l1
80 val l3 = Timeslot mergeOverlaps l2
84 private def stringOfStartCron = when match {
85 case None => "? ? ? ? ?"
86 case Some((s,_)) => s.toString
88 private def stringOfEndCron = when match {
89 case None => "? ? ? ? ?"
90 case Some((_,s)) => s.toString
92 override def toString : String = "EffectiveUnitPrice(%f,%s,%s)".
93 format(unitPrice,stringOfStartCron,stringOfEndCron)