THE DIRECTORY SERVICE FO R THE CERN ACCELERATOR CONTROL APPLICATION PROGRAMS

The controls infrastructure of CERN’s acceler ator complex is converging towards a unified architecture. High level control room application programs are written in Java and they interact with the accelerator environment through several interface libraries. One of these libraries is the Directory Service. This library provides information about the accelerator equipment through a number of Java classes that get their data from a relational Configuration Database via JDBC. On a higher level, application programs are called from a generic console manager that can be configured for an operational environment through the Directory Service, which provides information about menu trees of software programs to be called plus the attributes and parameters of these programs.