Event-Specific Software Composition in Context-Oriented Programming

Appeltauer, Malte; Hirschfeld, Robert; Masuhara, Hidehiko; Haupt, Michael; Kawauchi, Kazunori

doi:10.1007/978-3-642-14046-4_4

Cited by 42 publications

(45 citation statements)

References 23 publications

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“…In addition, in some applications, it is not possible to identify unique entry points for the control flow. As already noticed by COP researchers [19], in these cases layer composition statements must be scattered and replicated across all the possible control flows, such as all the callback methods in a GUI application.…”

Section: The Context-oriented Programming Solutionmentioning

confidence: 99%

“…For example, changing active variations by specifying the list of all the active ones (like we showed in the previous sections) is a highly dynamic and flexible mechanism, which gives the programmer more freedom than it is really needed in most scenarios. Even in the examples provided in COP literature, most activation schema are quite simple and encompass only few variations, often in mutual exclusion [21,7,15,19]. Nonetheless, in the spirit of leaving the exploration of more dynamic solutions open, we decided to keep both activation mechanisms.…”

Section: Coherence Among Variations: the Context Abstract Data Typementioning

confidence: 99%

“…Over the time, many COP extensions have been developed for different languages such as Python, Smalltalk, Ruby, JavaScript and Groovy. This effort has been extended to less dynamic languages, in which COP extensions are more difficult to implement due to the limited reflective capabilities, such as Java [7,15,19,21,42]. A comparison of the existing COP languages with a performance evaluation of the available solutions can be found in [38].…”

Section: Related Workmentioning

confidence: 99%

“…Jcop [19] is a Java COP extension which introduces two constructs. Declarative layer composition allows to express variation activation declaratively through joinpoint quantification.…”

Section: Related Workmentioning

confidence: 99%

“…The main contribution of COP with respect to AOP is to provide specific abstractions for context adaptation. AOP can be indirectly applied for the same purposes and some COP language implementations rely on AOP [21,19,42]. However, although some AOP frameworks exist support dynamic aspect activation, such as Prose [45], AOP focuses on compile time feature selection and combination, while the COP core concept is run time activation and combination of behavioral variations.…”

Section: Related Workmentioning

confidence: 99%

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ContextErlang: A language for distributed context-aware self-adaptive applications

Salvaneschi

Ghezzi

Pradella

2015

Science of Computer Programming

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Please cite this article in press as: G. Salvaneschi et al., ContextErlang: A language for distributed context-aware self-adaptive applications, Sci. Comput. Program. (2015), http://dx.doi.org/10.1016/j.scico. 2014.11.016 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ContextErlang AbstractSelf-adaptive software modifies its behavior at run time to satisfy changing requirements in a dynamic environment. Context-oriented programming (COP) has been recently proposed as a specialized programming paradigm for contextaware and adaptive systems. COP mostly focuses on run time adaptation of the application's behavior by supporting modular descriptions of behavioral variations. However, self-adaptive applications must satisfy additional requirements, such as distribution and concurrency, support for unforeseen changes and enforcement of correct behavior in the presence of dynamic change. Addressing these issues at the language level requires a holistic design that covers all aspects and takes into account the possibly cumbersome interaction of those features, for example concurrency and dynamic change. We present ContextErlang, a COP programming language in which adaptive abstractions are seamlessly integrated with distribution and concurrency. We define ContextErlang's formal semantics, validated through an executable prototype, and we show how it supports formal proofs that the language design ensures satisfaction of certain safety requirements. We provide empirical evidence that ContextErlang is an effective solution through case studies and a performance assessment. We also show how the same design principles that lead to the development of ContextErlang can be followed to systematically design contextual extensions of other languages. A concrete example is presented concerning ContextScala.

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Section: The Context-oriented Programming Solutionmentioning

confidence: 99%

Section: Coherence Among Variations: the Context Abstract Data Typementioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

“…Jcop [19] is a Java COP extension which introduces two constructs. Declarative layer composition allows to express variation activation declaratively through joinpoint quantification.…”

Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

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