大粒度Web服務(wù)的相容性研究及其在企業(yè)服務(wù)總線中的應(yīng)用
發(fā)布時間：2018-09-05 19:59
【摘要】：近年來，面向服務(wù)架構(gòu)（SOA）已成為系統(tǒng)集成的主要解決方案，SOA的提出在一定程度上解決了多個應(yīng)用集成的問題。SOA架構(gòu)的基礎(chǔ)設(shè)施是企業(yè)服務(wù)總線（ESB），隨著企業(yè)業(yè)務(wù)復(fù)雜度的增加以及企業(yè)信息系統(tǒng)功能的不斷提升，企業(yè)服務(wù)總線開始暴露出一些問題。例如，在業(yè)務(wù)邏輯改變時需要重新進行服務(wù)的編排，修改企業(yè)服務(wù)總線的主配置文件，這樣便增加了系統(tǒng)的維護成本；其次，參與組合的大粒度Web服務(wù)相容性難以驗證，，組合后的服務(wù)內(nèi)部可能出現(xiàn)死鎖等問題，由此造成基于ESB的系統(tǒng)運行不穩(wěn)定。 為了解決以上問題，本文提出了一種大粒度Web服務(wù)相容性驗證方案，并將大粒度Web服務(wù)引入到ESB中完成服務(wù)組合。 首先，對企業(yè)服務(wù)總線、大粒度Web服務(wù)以及形式化建模技術(shù)進行了綜述。介紹了目前主流的幾種企業(yè)服務(wù)總線，闡述了企業(yè)服務(wù)總線的整體架構(gòu)以及主要功能，重點研究了MuleESB及其路由機制；概述了目前廣泛流行的大粒度Web服務(wù)描述語言；研究了常用的形式化建模技術(shù)。 其次，深入研究了OWL-S復(fù)雜進程模型描述的大粒度Web服務(wù)的相容性。提出了一種OWL-S復(fù)雜進程的Petri網(wǎng)自動建模方法，基于該方法實現(xiàn)了工具O2PJ，該工具可根據(jù)大粒度Web服務(wù)的OWL-S描述文件自動建立該服務(wù)的Petri網(wǎng)模型；基于OWL-S復(fù)雜進程的Petri網(wǎng)模型，本文提出了利用Petri網(wǎng)模型研究大粒度Web服務(wù)的相容性的方法。 然后，深入剖析了Mule ESB的實現(xiàn)。主要研究了Mule ESB的核心組件、組件管理機制、消息處理機制、對并發(fā)訪問的支持以及Mule ESB中的路由機制，并通過實例展示了如何利用Mule ESB中的路由機制實現(xiàn)服務(wù)組合。在此基礎(chǔ)上，分析了Mule ESB路由機制存在的維護性差、難以進行服務(wù)相容性驗證等問題。 最后，詳細(xì)闡述了Mule ESB中引入OWL-S復(fù)雜進程的方法，通過分析待組合服務(wù)內(nèi)部消息交互過程，采用OWL-S API組合服務(wù)，并利用大粒度Web服務(wù)的相容性研究成果驗證參與服務(wù)組合的大粒度服務(wù)之間的相容性，從而滿足新的用戶需求。
[Abstract]:In recent years Service-Oriented Architecture (SOA) has become the main solution for system integration. To a certain extent, SOA has solved the problem of multiple application integration. The infrastructure of SOA architecture is Enterprise Service bus (ESB),) with the increase of enterprise business complexity. And the continuous improvement of the function of enterprise information system, The enterprise service bus is beginning to expose some problems. For example, when the business logic changes, the service orchestration needs to be rearranged, and the master configuration file of the enterprise service bus is modified, which increases the maintenance cost of the system; secondly, the compatibility of the large granularity Web services involved in the composition is difficult to verify. Some problems such as deadlock may occur in the composite service, which results in the unstable operation of the system based on ESB. In order to solve the above problems, this paper proposes a large granularity Web service compatibility verification scheme, and introduces the large granularity Web service into ESB to complete service composition. First, the enterprise service bus, large-grained Web services and formal modeling techniques are reviewed. This paper introduces several kinds of main enterprise service bus at present, expounds the whole structure and main functions of enterprise service bus, studies MuleESB and its routing mechanism emphatically, summarizes the popular large granularity Web service description language at present. The formal modeling techniques are studied. Secondly, the compatibility of large granularity Web services described by OWL-S complex process model is studied. An automatic modeling method of OWL-S complex process based on Petri net is presented. Based on this method, the tool O2PJ is implemented. The tool can automatically build Petri net model of Web service according to the OWL-S description file of large granularity Web service, and Petri net model based on OWL-S complex process. In this paper, a Petri net model is proposed to study the compatibility of large granularity Web services. Then, the implementation of Mule ESB is analyzed in depth. This paper mainly studies the core components of Mule ESB, component management mechanism, message processing mechanism, support for concurrent access and routing mechanism in Mule ESB. An example is given to show how to use the routing mechanism in Mule ESB to implement service composition. On this basis, the problems of Mule ESB routing mechanism are analyzed, such as poor maintainability and difficulty in verifying service compatibility. Finally, the method of introducing OWL-S complex process into Mule ESB is introduced in detail. By analyzing the internal message exchange process of the service to be composed, OWL-S API is used to compose the service. The compatibility of large granularity Web services is verified by the research results of the compatibility of large granularity Web services, so as to meet the needs of new users.
【學(xué)位授予單位】：杭州電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.09
本文編號：2225315
[Abstract]:In recent years Service-Oriented Architecture (SOA) has become the main solution for system integration. To a certain extent, SOA has solved the problem of multiple application integration. The infrastructure of SOA architecture is Enterprise Service bus (ESB),) with the increase of enterprise business complexity. And the continuous improvement of the function of enterprise information system, The enterprise service bus is beginning to expose some problems. For example, when the business logic changes, the service orchestration needs to be rearranged, and the master configuration file of the enterprise service bus is modified, which increases the maintenance cost of the system; secondly, the compatibility of the large granularity Web services involved in the composition is difficult to verify. Some problems such as deadlock may occur in the composite service, which results in the unstable operation of the system based on ESB. In order to solve the above problems, this paper proposes a large granularity Web service compatibility verification scheme, and introduces the large granularity Web service into ESB to complete service composition. First, the enterprise service bus, large-grained Web services and formal modeling techniques are reviewed. This paper introduces several kinds of main enterprise service bus at present, expounds the whole structure and main functions of enterprise service bus, studies MuleESB and its routing mechanism emphatically, summarizes the popular large granularity Web service description language at present. The formal modeling techniques are studied. Secondly, the compatibility of large granularity Web services described by OWL-S complex process model is studied. An automatic modeling method of OWL-S complex process based on Petri net is presented. Based on this method, the tool O2PJ is implemented. The tool can automatically build Petri net model of Web service according to the OWL-S description file of large granularity Web service, and Petri net model based on OWL-S complex process. In this paper, a Petri net model is proposed to study the compatibility of large granularity Web services. Then, the implementation of Mule ESB is analyzed in depth. This paper mainly studies the core components of Mule ESB, component management mechanism, message processing mechanism, support for concurrent access and routing mechanism in Mule ESB. An example is given to show how to use the routing mechanism in Mule ESB to implement service composition. On this basis, the problems of Mule ESB routing mechanism are analyzed, such as poor maintainability and difficulty in verifying service compatibility. Finally, the method of introducing OWL-S complex process into Mule ESB is introduced in detail. By analyzing the internal message exchange process of the service to be composed, OWL-S API is used to compose the service. The compatibility of large granularity Web services is verified by the research results of the compatibility of large granularity Web services, so as to meet the needs of new users.
【學(xué)位授予單位】：杭州電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.09
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