Research On Adaptive Deployment Of Resource-constrained Web Service Applications

With the rapid development of mobile Internet technology,the application of Web service on mobile devices has become more and more popular.Web service has the characteristics of loose coupling,platform independence,strong interoperability etc.It can realize the coordination and the interconnection between heterogeneous resources.However,the battery capacity of mobile devices,available memory capacity,CPU computing power,network status and other resources are very limited,during Web service application running,it must face with many problems caused by the change of these resources information.In order to make the application of Web service adapt to the dynamic changes of the external environment,adaptive deployment mechanism is introduced to the Web service application.According to the development of adaptive deployment strategy,Web service application can independently adjust the location of service execution by sensing the change of equipment resource information.Therefore,It has great practical significance to research how to adaptive deploy the application of Web service in order to achieve the goal of reducing the consumption of equipment resources and improving the efficiency of application execution in resource constrained environment.According to current research status of resource-constrained Web service application,based on the researches of theoretical knowledge,combining with the existing research results of our research group,the adaptive deployment framework for resource-constrained Web service application is presented,each functional module and the interaction time sequence between each functional module is described in detail.This paper focuses on resource aware technology on mobile devices and adaptive deployment technology of resource-constrained Web service application.The resource-constrained Web service application partitioning algorithm and the adaptive deployment algorithm are presented.The main functional modules of the adaptive deployment framework for resource-constrained Web service application are implemented,including resource-awareness module,initialization module,service scheduler,analyzer,planner,deployer,CCML document editor and CCML document parser.Finally,a customer service system is developed to verify the effectiveness of the adaptive deployment framework of resource-constrained Web service.