ARText - Driving Developments with Xtext

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The document discusses using Xtext to develop a textual modeling language for AUTOSAR systems. It describes how Xtext allows creating a scalable language that can efficiently model large AUTOSAR projects. Xtext's extensibility, via the Guice framework, enables non-trivial customizations to support different AUTOSAR releases. Benchmark tests showed the Xtext-based language parsed a large model over 10 times faster than other tools.

Tecnologia Esportes

ARText.
ARText
BMW Car IT
11/20/09
Page 1

Driving developments with Xtext.

Sebastian.Benz@bmw-carit.de
Dana.Wong@bmw-carit.de

AUTOSAR.
ARText
BMW Car IT
11/20/09
Page 2
Automotive Open Systems Architecture.

AUTOSAR.
ARText
BMW Car IT
11/20/09
Page 3
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.
ARText
BMW Car IT
11/20/09
Page 4
Modeling AUTOSAR Systems.

Goal.
ARText
BMW Car IT
11/20/09
Page 5
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.
ARText
BMW Car IT
11/20/09
Page 6
There is an Eclipse Project for that…

AUTOSAR Textual Language.
ARText
BMW Car IT
11/20/09
Page 7
Challenges.

1.  Performance

2. Workspace integration

3. Metamodel support

Xtext.
ARText
BMW Car IT
11/20/09
Page 8
Performance.

Time for parsing a series model (1500 files):

oAW 240s

TMF 14s

AUTOSAR Tool Platform.
ARText
BMW Car IT
11/20/09
Page 9
Integration into Artop.

Artop
Eclipse

Artop.
ARText
BMW Car IT
11/20/09
Page 10
Workspace Integration.

On-the-fly model transformation

Artop.
ARText
BMW Car IT
11/20/09
Page 11
Workspace Integration.

components.artext

components.arxml

The AUTOSAR Dilemma.
ARText
BMW Car IT
11/20/09
Page 12
Handling different AUTOSAR Releases.

The AUTOSAR Dilemma.
ARText
BMW Car IT
11/20/09
Page 13
Supporting different AUTOSAR Releases.

components.artext

components.arxml

AUTOSAR 2.1

AUTOSAR 3.x

AUTOSAR 4.0

Supporting different AUTOSAR Releases.
ARText
BMW Car IT
11/20/09
Page 14
The Linking DSL.

The AUTOSAR Dilemma.
ARText
BMW Car IT
11/20/09
Page 15
Metamodel Differences.

AUTOSAR 2.x

ARText 3.x
4.0

Release specific
Extensions

Supporting different AUTOSAR Releases.
ARText
BMW Car IT
11/20/09
Page 16
Language Extensions.

TCompositionType:
'composition' name=ID '{'
(...|
extensionPoints += TExtensionPoint)*
'}'
;

TExtensionPoint:
keyword=ID (args+=TArg (',' args+=TArg)* )?;

TArg:
ListLiteral | BoolLiteral | StringLiteral |...;

Supporting different AUTOSAR Releases.
ARText
BMW Car IT
11/20/09
Page 17
Language Extensions.

Supporting different AUTOSAR Releases.
ARText
BMW Car IT
11/20/09
Page 18
Language Extensions.

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

Results.
ARText
BMW Car IT
11/20/09
Page 19
Modeling Efficiency.

# Mouse Clicks:
ARText
Commercial Tool

# Key presses:
ARText
Commercial Tool

Modeling time (min):

ARText
Commercial Tool

Summary.
ARText
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.
ARText
BMW Car IT
11/20/09
Page 21
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ARText - Driving Developments with Xtext

1. ARText. ARText BMW Car IT 11/20/09 Page 1 Driving developments with Xtext. Sebastian.Benz@bmw-carit.de Dana.Wong@bmw-carit.de

2. AUTOSAR. ARText BMW Car IT 11/20/09 Page 2 Automotive Open Systems Architecture.

3. AUTOSAR. ARText BMW Car IT 11/20/09 Page 3 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

4. AUTOSAR. ARText BMW Car IT 11/20/09 Page 4 Modeling AUTOSAR Systems.

5. Goal. ARText BMW Car IT 11/20/09 Page 5 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 }

6. AUTOSAR Textual Language. ARText BMW Car IT 11/20/09 Page 6 There is an Eclipse Project for that…

7. AUTOSAR Textual Language. ARText BMW Car IT 11/20/09 Page 7 Challenges. 1.  Performance 2. Workspace integration 3. Metamodel support

8. Xtext. ARText BMW Car IT 11/20/09 Page 8 Performance. Time for parsing a series model (1500 files): oAW 240s TMF 14s

9. AUTOSAR Tool Platform. ARText BMW Car IT 11/20/09 Page 9 Integration into Artop. Artop Eclipse

10. Artop. ARText BMW Car IT 11/20/09 Page 10 Workspace Integration. On-the-fly model transformation

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

12. The AUTOSAR Dilemma. ARText BMW Car IT 11/20/09 Page 12 Handling different AUTOSAR Releases.

13. The AUTOSAR Dilemma. ARText BMW Car IT 11/20/09 Page 13 Supporting different AUTOSAR Releases. components.artext components.arxml AUTOSAR 2.1 AUTOSAR 3.x AUTOSAR 4.0

14. Supporting different AUTOSAR Releases. ARText BMW Car IT 11/20/09 Page 14 The Linking DSL.

15. The AUTOSAR Dilemma. ARText BMW Car IT 11/20/09 Page 15 Metamodel Differences. AUTOSAR 2.x ARText 3.x 4.0 Release specific Extensions

16. Supporting different AUTOSAR Releases. ARText BMW Car IT 11/20/09 Page 16 Language Extensions. TCompositionType: 'composition' name=ID '{' (...| extensionPoints += TExtensionPoint)* '}' ; TExtensionPoint: keyword=ID (args+=TArg (',' args+=TArg)* )?; TArg: ListLiteral | BoolLiteral | StringLiteral |...;

17. Supporting different AUTOSAR Releases. ARText BMW Car IT 11/20/09 Page 17 Language Extensions.

18. Supporting different AUTOSAR Releases. ARText BMW Car IT 11/20/09 Page 18 Language Extensions. @ArtextExtension( artextElement = TCompositionType.class, keyword = "checksum", params = { "the checksum" } ) public void execute(CompositionType container, String checksum){ i.setChecksum(theChecksum); }

19. Results. ARText BMW Car IT 11/20/09 Page 19 Modeling Efficiency. # Mouse Clicks: ARText Commercial Tool # Key presses: ARText Commercial Tool Modeling time (min): ARText Commercial Tool

20. Summary. ARText 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.

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

Notas do Editor

Basic Software and Software Components are specified in an AUTOSAR modeling language.
The AUTOSAR metamodel is complex. Abstraction are required for efficient modeling.
A textual language is only as good as it‘s tooling => Goal is to create a language and a tool
The new xtext version is clearly able to handle large projects.
http://www.artop.org
From a tooling point of view, the code completion proposals must come from other artext files as well as other autosar resources. But the problem gets even worse...
AUTOSAR is not a one lane road, it is a three lane road. There are different revisions of the AUTOSAR standard: 2, 3 and the upcoming 4.0 which all must be supported by ARText. Our language must support different metamodel releases Reference to COPE
The information specified in the linking file is used for Scoping, Validation and Linking during transformation.

ARText - Driving Developments with Xtext

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Notas do Editor