engleski

Autonomous Mobile Objects in CORBA-Based Distributed Systems

CORBA (Common Object Request Broker Architecture) has emerged as s prevailing middleware solution to problems of heterogeneity innate to distributed systems. Such systems require permanent and reliable network connections while produced objects are tied to dedicated computer systems only, thus preventing code mobility in run-time environment. We found mobile agents could avoid mentioned obstacles by bringing revolutionary point of view on a new generation of CORBA-based distributed systems. This paper presents concept and implementation of &#8220 ; ; Hornet&#8221 ; ; , a MASIF-compliant mobile agent system based on the CORBAScript scripting language, thus completely integrated in CORBA environment. Common problems related to standard implementations of CORBA-based distributed applications are illustrated and benefits of agent-based solutions outlined. An overview of CORBA-based mobile agent system architecture is given addressing the specific implementation issues. Two developed example applications are described, consequences of introducing mobile agents in the CORBA environment discussed and future work directions explained. We feel that introduction of tightly CORBA integrated scrip-based object mobility provides a new perspective to developers and researchers of distributed object systems.

CORBA

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