A Service Administration Design Pattern for Dynamically Configuring Communication Services in Autonomic Computing Systems

Rapidly growing collection of communication services is now available on the Internet. A communication service is a component in a server that provides capabilities to clients. Services available on the Internet include: WWW browsing and content retrieval services software distribution service. A common way to implement these services is to develop each one as a separate program and then compile, link, and execute each program in a separate process. However, this "static" approach to configuring services yields inflexible, often inefficient, applications and software architectures. The main problem with static configuration is that it tightly couples the implementation of a particular service with the configuration of the service with respect to other services in an application. In this paper we propose a system for dynamically configuring communication services. Server will invoke and manage services based on time stamp of service. The system will reduce work load of sever all services in executed by different threads based on time services are executed, suspended and resumed. Different patterns are used designing of service administration pattern that are reflective monitoring, strategy and thread per connection. This paper satisfies the properties of autonomic system: For monitoring use reflective monitoring, Decision making we use strategy pattern. Thread per connection is used of executing service in different thread. The pattern is described using a java-like notation for the classes and interfaces. A simple UML class and Sequence diagrams are depicted.