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

"{ NameSpace: Smalltalk }"

Object subclass:#MCReader
	instanceVariableNames:'stream'
	classVariableNames:''
	poolDictionaries:''
	category:'SCM-Monticello-Storing'
!

!MCReader class methodsFor:'instance creation'!

on: aStringOrStream

        ^ self new stream: aStringOrStream readStream

    "Modified: / 25-11-2011 / 16:57:41 / cg"

!

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

    "must make sure that the package is fully loaded;

     otherwise, subclasses are not found"

    self projectDefinitionClass ensureFullyLoaded.

    ^ 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 class methodsFor:'documentation'!

version

    ^ '$Header: /cvs/stx/stx/goodies/monticello/MCReader.st,v 1.6 2015-02-07 11:09:03 cg Exp $'

!

version_CVS

    ^ '$Header: /cvs/stx/stx/goodies/monticello/MCReader.st,v 1.6 2015-02-07 11:09:03 cg Exp $'

!

version_SVN

    ^ '$Id: MCReader.st,v 1.6 2015-02-07 11:09:03 cg Exp $'

! !