Modulization approach & application of OSGi-based RFID Middleware Web presentation layer

The lack of modular technology and framework makes it infeasible for traditional Java-based Web applications to develop in a modular-based way. The integration of OSGi (open service gateway initiative) framework and Java Web application provides an approach to the modular-based development of J2EE presentation layer, but to cater for the Web presentation layer of enterprise-level Web applications (such as the Web presentation layer of reconfigurable RFID middleware), it also requires that OSGi framework can collaborate with J2EE frameworks at all levels. The paper begins with the analysis of the runtime environment of OSGi-based Web applications, which summarizes the technical difficulties when integrating OSGi framework with popular open source J2EE frameworks, and then describes and implements an OSGi DS (declarative services)-based dynamic perception model, and applies this model to the development reconfigurable RFID middleware Web presentation layer.