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Dynamic Service Routing Mechanism Research and Implementation Based on SOA

Author: WuHeng
Tutor: WuQuanYuan;LiuJiangNing
School: National University of Defense Science and Technology
Course: Computer Science and Technology
Keywords: SOA Service Virtualization Service Routing Publish Subscribe Drools rules engine
CLC: TP311.52
Type: Master's thesis
Year: 2007
Downloads: 168
Quote: 1
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Abstract


With the rapid development of SOA (Service Oriented Architecture) technology, distributed applications gradually evolved from simple bilateral interaction services multilateral interaction complex runtime dynamic decisions. To address this challenge, the use of an intermediary module to the service consumer from interfaces, protocols, and services to provide the identity of the isolated out in order to achieve the the smart interconnection between service consumers and service providers to provide service virtualization mechanism. The practical application of dynamic service routing mechanism SOA architecture service virtualization strategy, in theory, the dynamic service routing model is divided into two categories, typical Mule project the reactive dynamic routing model of reaction type (Reactive) and predictive (Predictive) and IBM predictive dynamic routing model deficiencies. In this paper, based on the analysis of these two types of dynamic service routing model, proposed an improved dynamic routing model, the forecast - reactive routing model (P-RSR model), P-RSR model by content-based \publish / subscribe communication model (the Publish / Subscribe) Drools rules engine is composed of two parts. This paper focuses on the two key technologies constitute a P-RSR model launched following research work: a fast matching algorithm, based on the \Content-based publish / subscribe communication mode is an event-based communication paradigm with asynchronous RPC, distributed shared memory, message queues and asynchronous communication paradigm compared to enable participants to communicate in space, time, and control stream completely decoupled, and therefore better able to meet the needs of many large-scale distributed systems loosely coupled communication, has attracted widespread attention in recent years, and in-depth research. Drools rule engine research. Drools rules engine is based on the JSR94 standard and Rete algorithm of the open source framework Rete is the number of unique efficiency and the implementation of rules independent decision-support algorithm, its core idea is the separation of the match according to the contents of the dynamic structure matching tree, in order to achieve significant with reduce computing The effect of the amount. P-RSR model matches the rules in order to improve performance. 3, the system realization. P-RSR model visualization based on the results of this research, GEF framework and EMF framework. The performance tests show that the P-RSR model is efficient and reliable, can well meet the SOA architecture, suitable for large-scale distributed applications environment. In summary, this paper solved several key issues for the P-RSR model proposed effective solutions, and successfully applied to the Nanchang Public Security Administrative system.

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