Research And Implementation Of The Stateful Service Based On Workflow

Up to now, the fragmented and isolated application system gradually cannot satisfy the Internet, visits, collaborative economic development needs. Low-cost integration of legacy systems into enterprise systems is the best solution to smooth upgrade, while the past development application system used by C/S mode also was gradually replaced by B/S model. Then the following problems inevitably block in front of the enterprise and developer:How to complete the multiple systems within the enterprise between low cost, high flexibility, high scalability interconnected; How to complete data sharing and business collaboration with business partners and ensure security interconnection across the Internet; How to manage effectively monitoring more and more, change faster and faster Internet communications. This paper which describes Research and Implementation of The Stateful Service Base on Workflow is a research topic in service-oriented architecture model driven integrated development platform. The study was designed to address seamless integration between business processes and business services, achieve the coupling between the stateful business process and the Web service without state principle. At the same time, the study also aims to achieve interaction and access between services, in order to solve data sharing between business partners and business collaboration in the current environment.The Stateful Service based on Workflow is refers to build business processes using process modeling technology, achieve business process model to process service model transformation using model transformation technology, achieve the management, operation monitoring about Service status using Service Management Technology and to achieve interoperability between services using Message management Technology. Through process modeling, model transformation technology, service management and message management in the System, process service Integrate Double advantage between workflow and Web Service, make the system user friendly, improve the interaction between systems and achieve rapid application development, dynamic changes to adapt to the business and improve the access and exchange between enterprises. In the process of research. first of all. Model transformation technique is proposed and the Technology realize conversion from business model to service model while post the service model to the service model Integrate platform and available for retrieval to the service requestor. Second. in order to retain the stateful of business process in the conversion service model, resolving the disadvantage that Web service can not deal with state data, This paper puts forward the concept of State Management Level which the business process state properties independent delaminated management without affecting to the process service and retained the stateful principle in business process. In the level, making the state properties of business process to standard service interface exists in the form of state management by defining standardized service state interface and business process service condition management and conversion are realized by these standard service interface management.The propose of State Management Level achieve the combination of business processes and business services in the service-oriented architecture model while the level ensure the stateful data management in process without violating the principles of the free state in Web Service. Finally, for the current financial needs and Data sharing and collaboration needs of business. This paper puts forward universal messaging communication mechanism which realize the interaction between process service work and solve data sharing and business collaboration problem between enterprise. In the process of realizing messaging communication mechanism, we puts forward the message format coding rules, the data storage rules and message forwarding rules. The message format rules refers to implement all SOAP message of every process service carried by the format no matter how complex data types and how data quantity. The format is General. The data storage rules which corresponds to the message format rules refers to define the data storage structure based on the binary tree structure as the message start and end of data transmission. In order to realize data transmission and transformation between the SOAP message and data storage structure, this paper also puts forward message data conversion technology which is used for conversion between SOAP message and the data storage structure. The message forwarding rule means that the paper proposes the route service based on the complexity of Enterprise Service Bus which releases the routing function to a service. In this way. the service can be deployed to any intermediate station, the service requester when initiating service request, the request will be automatically forwarded to the routing service, and then sent by the routing service to the actual destination address. Using this simple, efficient way. we can realize message forwarding safe and reliable and shields the complexity of the Enterprise Service Bus technology and reduce the pressure on the platform and Improve the efficiency and speed of the platform. Although the stateful process service which is described in this paper solve the state management and service interaction problem, there are some issues that need further study. For example, the automatically compensate mechanism in process service is he next point of research. Automatic compensation mechanism refers to the business process service can choose the appropriate exception handling when encounter exceptional circumstances. These disorders treatment may be to roll back the whole process or also start another process service to compensate for the consequences of failure of the current process service and so on. These are all subject to automatic compensation mechanism of the process areas and need further study.