OSGiLarva : a monitoring framework supporting OSGi’s dynamicity

Service-Oriented Architecture is an approach where software systems are designed in terms of a composition of services. OSGi is a Service-Oriented Framework dedicated to 24/7 Java systems. In this Service-Oriented Programming approach, software is composed of services that may dynamically appear or disappear. In such a case, classical monitoring approaches with statically injected monitors into services cannot be used. In this paper, we describe ongoing work proposing a dynamic monitoring approach dedicated to local SOA systems, focusing particularly on OSGi. Firstly, we define two key properties of loosely coupled monitoring systems: dynamicity resilience and comprehensiveness. Next, we propose the OSGiLarva tool, which is a preliminary implementation targeted at the OSGi framework. Finally, we present some quantitative results showing that a dynamic monitor based on dynamic proxies and another based on aspect-oriented programming have equivalent performances.peer-reviewe