Uma linguagem de especificação de aspectos para o desenvolvimento orientado a serviços

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The distributed and loosely-coupled nature of web services-based applications brings about a series of non-functional concerns (for example, monitoring, exception handling, high availability, and security) that are an essential part of their design. However, due to inherent limitations of current web services development technologies, the implementation of such concerns, which affect service consumers as well as service providers, tends to spread across the source code of several applications, inevitably being tangled with the implementation of their functional concerns. This work presents an aspect specification language, called WSAL (Web Service Aspect Language), which relies on key concepts from the aspect-oriented programming paradigm to improve the modularization of non-functional concerns in the context of service-oriented software development. Differently from existing solutions that aim at integrating these two emerging computing paradigms, WSAL supports a novel aspect model in which non-functional concerns are modularized in aspects also implemented as services. This characteristic allows aspects to be dynamically woven into the message flow exchanged between service consumer and service provider applications, in a way that is completely decoupled from their implementation technologies. The work also presents an initial tool set developed to support WSAL, which was used to conduct a preliminary evaluation of the performance impacted imposed by the language onto the affected service-oriented applications.

ASSUNTO(S)

engenharia de software - dissertaÇÕes sistemas de informacao programaÇÃo orientada ao objeto - dissertaÇÕes

ACESSO AO ARTIGO

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