Extending publish/subscribe mechanisms to SOA applications

Albano, Michele; Ferreira, Luís Lino; Sousa, José

http://hdl.handle.net/10400.22/9503

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Authors

Albano, Michele

Ferreira, Luís Lino

Sousa, José

Abstract(s)

The Event Handler systems is part of the Arrowhead Framework, which aims to apply Service Oriented Architecture to the embedded systems' world. The Event Handler system is a component that supports the handling of events, and in that sense it enriches service-oriented applications with the capabilities of interacting via the publish/subscribe paradigm. In fact, the Event Handler core system is in charge of the notification of events that occur in a given Arrowhead compliant installation, manages producers and consumers of events, allows filtering of messages, and manages historical data regarding events. This latter capability is performed either on local files, on a database, or through another component of the Arrowhead Framework - the Historian system. Two examples of the application of the Event Handler system are described: the management of application faults, and the support to quality of service of orchestrated services.