Abstract
Enterprise Service Bus (ESB) technology combines the Service-Oriented Architecture, which is based on the request/response model, and the Event-Driven Architecture, which is based on the publish/subscribe model. It can satisfy the demand of loose couple communication and cooperation in the enterprise applications. However, existing ESB based systems can't process the complex events in the real-world applications very well. In this paper, we firstly give a complex event processing model based on the relational algebra, and then propose a complex event processing oriented enterprise service bus platform and a complex event stream processing engine, and give the main algorithms of complex event processing and their performance analysis. Experiments show that our platform performs much better than the existing ESB based systems in complex event processing.