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"
 (C) 2011 by Holger Hans Peter Freyther
 All Rights Reserved

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU Affero General Public License as
 published by the Free Software Foundation, either version 3 of the
 License, or (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Affero General Public License for more details.

 You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
"

Object subclass: MGCPTrunkBase [
    | ip ports sem |
    <comment: 'I represent a trunk for a Gateway'>
    <category: 'MGCP-Callagent'> 

    MGCPTrunkBase class >> initialize [
        <category: 'creation'>
        ^ self new
            initialize;
            yourself
    ]

    initialize [
        sem := RecursionLock new.
    ]

    destIp [
        <category: 'accessing'>
        ^ ip
    ]

    destIP: aDest [
        <category: 'private'>
        ip := aDest
    ]

    numbersPorts: nrPorts [
        <category: 'private'>
        ports := Array new: nrPorts.
        1 to: nrPorts do: [:each |
            ports at: each put: (MGCPEndpoint initWith: each trunk: self)].
    ]

    endpointAt: aNr [
        <category: 'private'>
        ^ ports at: aNr
    ]

    endpointName: aNr [
        ^ self subclassResponsibility
    ]

    critical: aBlock [
        sem critical: aBlock.
    ]
]

MGCPTrunkBase subclass: MGCPVirtualTrunk [
    <comment: 'I represent a @mgw virtual trunk'>
    <category: 'MGCP-Callagent'> 

    MGCPVirtualTrunk class >> createWithDest: anIP numberPorts: nr [
        <category: 'factory'>
        ^ self new
            destIP: anIP;
            numbersPorts: nr
            yourself
    ]

    endpointName: aNr [
        ^ '%1@mgw' % {(aNr radix: 16) copyFrom: 4}
    ]
]

MGCPTrunkBase subclass: MGCPDSTrunk [
    | trunk |
    <comment: 'I represent an E1 trunk with 32 endpoints'>
    <category: 'MGCP-Callagent'> 

    MGCPDSTrunk class >> createWithDest: anIP trunkNr: aNr [
        <category: 'factory'>
        ^ self new
            destIP: anIP;
            numbersPorts: 32;
            trunkNr: aNr;
            yourself
    ]

    trunkNr: aNr [
        trunk := aNr.
    ]

    endpointName: aNr [
        ^ 'ds/e1-%1/%2@mgw' % {trunk. (aNr radix: 16) copyFrom: 4}
    ]
]