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Publication Detail
Generating a contract checker for an SLA language
  • Publication Type:
    Chapter
  • Authors:
    Skene J, Emmerich W
  • Publisher:
    IEEE Computer Society Press
  • Publication date:
    2004
  • Book title:
    Proceedings of the EDOC 2004 Workshop on Contract Architectures and Languages, Monterey, California
  • Notes:
    Imported via OAI, 7:29:01 5th Jul 2005
Abstract
SLAng is a language for expressing Service LevelAgreements (SLAs) under development as part of the Europeanproject TAPAS. It is defined using a meta-model, an instance ofthe Meta-Object Facility (MOF) model, in which the relationshipbetween the syntax of the language and its domain of applicationis explicitly represented, and the violation semantics ofthe language defined using Object Constraint Language (OCL)constraints. The concrete syntax of the language is the XMLMeta-data Interchange (XMI) mapping of the syntactic part ofthe meta-model. In this paper we describe how the Java MetadataInterface (JMI) mapping can be applied to the meta-modelof the language to generate interfaces and classes to create andquery SLAs and relevant service monitoring data in memory;and how an OCL interpreter can be applied to check violationconstraints over this data, resulting in the implementation of acontract checker that is highly likely to respect the semantics ofthe language.
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