114 lines
3.0 KiB
Smalltalk
114 lines
3.0 KiB
Smalltalk
"
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(C) 2010 by Holger Hans Peter Freyther
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All Rights Reserved
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"
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"
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This is the interface to the VLR
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"
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Object subclass: VLRSubscriber [
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|imsi tmsi msisdn lac|
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<category: 'OsmoMSC-VLR'>
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<comment: 'I am one subscriber in the VLR'>
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imsi [ <category: 'accessing'> ^ imsi ]
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tmsi [ <category: 'accessing'> ^ tmsi ]
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msisdn [ <category: 'accessing'> ^ msisdn ]
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lac [ <category: 'accessing'> ^ lac ]
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]
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Object subclass: VLR [
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<category: 'OsmoMSC-VLR'>
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<comment: 'I hold the active subscribers'>
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activeSubscribers [
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<category: 'accessing'>
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^ self subclassResponsibility
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]
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activeSubscribersByLAC: aLac [
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<category: 'accessing'>
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^ self activeSubscribers
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reject: [:each | each ~= aLac ].
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]
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findSubscriber: aMatch ifAbsent: aBlock [
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<category: 'private'>
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self activeSubscribers do: [:each |
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(aMatch value: each)
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ifTrue: [^each].
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].
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^ aBlock value.
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]
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findSubscriberByIMSI: aIMSI ifAbsent: aBlock [
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<category: 'accessing'>
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^ self findSubscriber: [:each | each imsi = aIMSI] ifAbsent: aBlock.
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]
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findSubscriberByTMSI: aTMSI ifAbsent: aBlock [
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<category: 'accessing'>
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^ self findSubscriber: [:each | each tmsi = aTMSI] ifAbsent: aBlock.
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]
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insertSubscriber: aIMSI [
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^ self subclassResponsibility
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]
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]
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Object subclass: HLRResolver [
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<category: 'OsmoMSC-HLR'>
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insertSubscriber: aIMSI [
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^ self subclassResponsibility
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]
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]
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VLR subclass: VLRLocalCollection [
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| subs resolver |
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<category: 'OsmoMSC-VLR'>
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VLRLocalCollection class >> initWith: aResolver [
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^ self new
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instVarNamed: #resolver put: aResolver;
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yourself.
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]
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insertSubscriber: aIMSI [
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| hlr sub |
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hlr := resolver insertSubscriber: aIMSI.
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hlr ifNil: [^false].
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sub := self findSubscriberByIMSI: aIMSI
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ifAbsent: [ | sub |
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sub := VLRSubscriber new
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instVarNamed: #imsi put: aIMSI; yourself.
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self subs add: sub].
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^ true
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]
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activeSubscribers [
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<category: 'accessing'>
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^ self subs
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]
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subs [ <category: 'private'> ^ subs ifNil: [subs := OrderedCollection new]]
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]
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