Research On Key Techniques Of Service Component Assembly

As the application of web service in different areas becoming broader and deeper, service oriented architecture (SOA) has developed rapidly in terms of service integration relying on its powerful advantages of language and platform independence, heterogeneous applications loosely coupling. SOA, however, gives only a framework for service oriented architecture, web services assembly of the industry concerned does not offer a unified standard. Service component architecture (SCA) based on the idea of SOA, puts forward a complete set of service component assembly specification, and quickly becomes a focus of current research. In the assembly process of service component, manual description of business logic is very tough, complicated and error-prone. Service component visual assembly in an intuitive and easy to understand manner, greatly improves the efficiency of the service component assembly.In this dissertation, SOA, SCA, SDO (Service Data Object) and related concepts are introduced. At the same time, a framework for service component is proposed. According to SCA Service Component Specification, the common method of C# and Java type of service components is given. On this basis, the local service component library designed to store and support users under the service component to retrieve the relevant properties. Then, according to SCA assembly specification, introduce the service component assembly process, and use the GMF (Graphical Modeling Framework) to create the domain model of SCA service component assembly and achieve a visual service component assembly tool. After a simple business process validation, the SCA service component assembly specification documents is created, and combined with Apache Tuscany server to run service composite. Finally, a case study shows the functions and results of the service component assembly tool, and verifies the practical of the visual service component assembly tool.In this dissertation, the method from Java type components to service components is given and solves the conversion of software component to the service component. Then use the local service component library to store the service component. Service component assembly visualization tool, which solves the shortage of low level and low efficiency in the process of service component assembly, can generates service component assembly file for the runtime environment. The key techniques of service component assembly presented in this dissertation have definite theoretical and application value as guidance to services component assembly.