"{ Package: 'stx:goodies/monticello' }"

Object subclass:#MCReader

	instanceVariableNames:'stream'

	classVariableNames:''

	poolDictionaries:''

	category:'Monticello-Storing'

!

!MCReader class methodsFor:'instance creation'!

new

	^ self basicNew initialize

!

on: aStream

	^ self new stream: aStream

!

on: aStream name: aFileName

	| class |

	class _ self readerClassForFileNamed: aFileName.

	^ class

		ifNil: [self error: 'Unsupported format: ', aFileName]

		ifNotNil: [class on: aStream]

! !

!MCReader class methodsFor:'testing'!

canReadFileNamed: fileName

	^ (fileName endsWith: self extension)

!

concreteSubclasses

	^ self allSubclasses reject: [:c | c isAbstract]

!

isAbstract

	^ (self respondsTo: #extension) not

!

readerClassForFileNamed: fileName

	^ self concreteSubclasses

		detect: [:c | c canReadFileNamed: fileName]

		ifNone: [nil]

! !

!MCReader methodsFor:'accessing'!

stream: aStream

	stream _ aStream

! !

!MCReader methodsFor:'lifecycle'!

initialize

! !

!MCReader class methodsFor:'documentation'!

version

    ^ '$Header: /cvs/stx/stx/goodies/monticello/MCReader.st,v 1.1 2006-11-22 13:05:12 cg Exp $'

! !