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.computation
41 * Maintains the current state of a resource instance owned by the user.
43 * In order to have a uniform representation of the resource state for all
44 * resource types (complex or simple) the following convention applies:
46 * - If the resource is complex, the (name, instanceID) is (DSLResource.name, instance-id)
47 * - If the resource is simple, the (name, instanceID) is (DSLResource.name, "1")
49 * @param resource Same as `resource` of [[gr.grnet.aquarium.event.model.resource.ResourceEventModel]]
50 * @param instanceID Same as `instanceID` of [[gr.grnet.aquarium.event.model.resource.ResourceEventModel]]
51 * @param instanceAmount This is the amount kept for the resource instance.
52 * The general rule is that an amount saved in a
53 * [[gr.grnet.aquarium.computation.parts. ResourceInstanceSnapshot]]
54 * represents a total value, while a value appearing in a
55 * [[gr.grnet.aquarium.event .model.resource.ResourceEventModel]]
56 * represents a difference. How these two values are combined to form the new amount is dictated
57 * by the underlying [[gr.grnet.aquarium.charging.ChargingBehavior]]
59 * @author Christos KK Loverdos <loverdos@gmail.com>
61 case class ResourceInstanceAmount(
64 instanceAmount: Double
67 def isSameResourceInstance(resource: String, instanceId: String) = {
68 this.resource == resource &&
69 this.instanceID == instanceId
72 def toResourceInstanceAmountMapElement = (resource, instanceID) -> this