ARText.
ARText
BMW Car IT
11/20/09
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Driving developments with Xtext.
Sebastian.Benz@bmw-carit.de
Dana.Wong@bmw-carit.de

AUTOSAR.
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BMW Car IT
11/20/09
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Automotive Open Systems Architecture.

AUTOSAR.
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11/20/09
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Automotive Open Systems Architecture.
Application Application Application
Software Software Software
Component AUTOSAR Component Component
SOFTWARE
AUTOSAR AUTOSAR AUTOSAR
Interface Interface Interface
AUTOSAR Modeling Language
AUTOSAR Runtime Environment (RTE)
Basic Software
ECU-Hardware

AUTOSAR.
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BMW Car IT
11/20/09
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Modeling AUTOSAR Systems.

Goal.
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BMW Car IT
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A Textual Language for AUTOSAR.
package AUTOSAR.components
component atomic myComponent {
ports {
sender sPort provides mySRInterface
receiver rPort requires mySRInterface
}
}
composition System {
prototype myComponent comp1
prototype myComponent comp2
connect comp1.sPort to comp2.rPort
connect comp2.sPort to comp1.rPort
}

AUTOSAR Textual Language.
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BMW Car IT
11/20/09
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There is an Eclipse Project for that…

AUTOSAR Textual Language.
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BMW Car IT
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Challenges.
1. Performance
2. Workspace integration
3. Metamodel support

Xtext.
ARText
BMW Car IT
11/20/09
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Performance.
Time for parsing a series model (1500 files):
oAW 240s
TMF 14s

AUTOSAR Tool Platform.
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Integration into Artop.
Artop
Eclipse

Artop.
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BMW Car IT
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Workspace Integration.
On-the-fly model transformation

Artop.
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BMW Car IT
11/20/09
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Workspace Integration.
components.artext
components.arxml

The AUTOSAR Dilemma.
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BMW Car IT
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Handling different AUTOSAR Releases.

The AUTOSAR Dilemma.
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BMW Car IT
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Supporting different AUTOSAR Releases.
components.artext
components.arxml
AUTOSAR 2.1
AUTOSAR 3.x
AUTOSAR 4.0

Supporting different AUTOSAR Releases.
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BMW Car IT
11/20/09
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The Linking DSL.

The AUTOSAR Dilemma.
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11/20/09
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Metamodel Differences.
AUTOSAR 2.x
ARText 3.x
4.0
Release specific
Extensions

Supporting different AUTOSAR Releases.
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BMW Car IT
11/20/09
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Language Extensions.
TCompositionType:
'composition' name=ID '{'
(...|
extensionPoints += TExtensionPoint)*
'}'
;
TExtensionPoint:
keyword=ID (args+=TArg (',' args+=TArg)* )?;
TArg:
ListLiteral | BoolLiteral | StringLiteral |...;

Supporting different AUTOSAR Releases.
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BMW Car IT
11/20/09
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Language Extensions.

Supporting different AUTOSAR Releases.
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Language Extensions.
@ArtextExtension(
artextElement = TCompositionType.class,
keyword = "checksum",
params = { "the checksum" }
)
public void execute(CompositionType container, String checksum){
i.setChecksum(theChecksum);
}

Results.
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BMW Car IT
11/20/09
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Modeling Efficiency.
# Mouse Clicks:
ARText
Commercial Tool
# Key presses:
ARText
Commercial Tool
Modeling time (min):
ARText
Commercial Tool

Summary.
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BMW Car IT
11/20/09
Page 20
Using Xtext in practice.
Scalable: handles large projects.
Extendable: thanks to Guice
non-trivial customizations are possible.
Efficent: short development time.

Thank you for your attention.
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BMW Car IT
11/20/09
Page 21
Questions?