A U.S. Department of Energy Office of Science Laboratory Operated by The University of Chicago Argonne National Laboratory Office of Science U.S. Department of Energy IRMIS Workshop Report D. A. Dohan, SLAC EPICS Collaboration Meeting, Apr.26, 2005

Pioneering Science and Technology Office of Science U.S. Department of Energy 2 IRMIS - Introduction I ntegrated R elational M odel of I nstalled S ystems -‘connection-based’ approach to modeling the accelerator and its control system - integrated ‘system’ coverage of software, hardware and cabling

Pioneering Science and Technology Office of Science U.S. Department of Energy 3 Collaborative approach Goal is to provide re-useable relational database and application frameworks Inter-laboratory effort strengthens the underlying database and application structures The ‘EPICS’ model is used throughout – sophisticated high level tools are developed, but the user always maintains the ability to look ‘under the hood’ Site-neutral (and RDBMS agnostic) Minimalist approach, locally extensible

Pioneering Science and Technology Office of Science U.S. Department of Energy 4 Collaborative approach A different programming paradigm (ask Bob and Marty) -Programming for general audience -More difficult short-term, but offset by leveraging group resources Initially, APS/SNS collaboration Expression of interest from SLAC/LCLS -> -Kickoff (extended) collaboration meeting at APS, Mar. 2005

Pioneering Science and Technology Office of Science U.S. Department of Energy 5 IRMIS Collaboration Meeting March 9-11, 2005 Advanced Photon Source, Argonne National Laboratory Agenda and Presentations Session A: Laboratory Perspectives Presentations of each laboratory's requirements and understanding of the relational database project. This discussion will provide a high level requirements/wish list. 1. N. Arnold, APS 2. D. Gurd, SNS 3. C. Sibley, SNS 4. R. Chestnut, SLAC 5. J. Stein, LCLS 6. T. Birke, BESSY 7. R. Keitel, TRIUMF 8. (D. Dohan for) DIAMOND 9. F.Bartlett FERMILAB 10. (D. Gurd for) SLS 11. C. Gerke, DESY

Pioneering Science and Technology Office of Science U.S. Department of Energy 6 Workshop Report (Cont’d) Session B: IRMIS Overview An overview of the present status of the IRMIS project at APS. 1. IRMIS-APS, outline, boundary conditions, issues - D. Dohan 2. RDBCore Schema for process variables, components (devices), and cables - D. Dohan 3. IRMIS demonstration. N. Arnold 4. Discussion

Pioneering Science and Technology Office of Science U.S. Department of Energy 7 IRMIS Components Agreement on RDB schema User interface technology(s) Business rules RDB PHP/ XAL PV Crawler Data Miner GUI

Pioneering Science and Technology Office of Science U.S. Department of Energy 8 Process Variable Entity Relation Diagram (ERD) record name type dbd definition ioc name field type value db load line is part of loaded in

Pioneering Science and Technology Office of Science U.S. Department of Energy 9 PV Schema

Pioneering Science and Technology Office of Science U.S. Department of Energy 10 Component (hardware) schema Component: -“ a constituent element, as of a system”… (Google) -unit replaceable physical entity associated with the accelerator - IO card, chassis, serial link,.. -more primitive granularity than a ‘device’ - do not assign a high level physics ‘role’ to a component - less subjective – no naming convention issue - more on this later -more geared to how the facility is assembled, rather than how it functions.

Pioneering Science and Technology Office of Science U.S. Department of Energy 11 Component ERD component name logical number physicaldescriptor serial number component type name description form factor manufacturer feature sheet function is a is controlled by is housed by location is powered by ///////

Pioneering Science and Technology Office of Science U.S. Department of Energy 12 Component types ‘Universal’ component type table -core set, derived from the supported EPICS device types Generalization to other hierarchies -(e.g. accelerator, vacuum,..)

Pioneering Science and Technology Office of Science U.S. Department of Energy 13 Component Schema (prototype)

Pioneering Science and Technology Office of Science U.S. Department of Energy 14 Cable ERD component name logical number physical descriptor serial number component type name description form factor manufacturer feature sheet function port name connector type is part of pin designator signal name is part of conductor pin_a connection pin_b connection cable color label is a pv name is part of

Pioneering Science and Technology Office of Science U.S. Department of Energy 15 Cable database Straightforward, once the component database is in place Builds on theme of ‘connectivity’ End-to-end signal tracing Cable does not need a name, color or other id -the cable is a ‘connection’ between 2 pins Completeness/consistency – examine installed system using housing view

Pioneering Science and Technology Office of Science U.S. Department of Energy 16 Workshop Report (Cont’d) Session C: Results, Progress & Plans 1. PV Crawler (with time stamp) - C. Saunders 2. Crawler extensions (proposed) - Andrew Johnson 3. EPICS databases using JERI - J. Patton, C. Foulkes, C. Sibley 4. Device Data and EpicsOra - DESY results - J. Rock, C. Gerke

Pioneering Science and Technology Office of Science U.S. Department of Energy 17 Workshop Report (Cont’d) Session D: User Interface and Applications 1. PV Viewer and the CFW. - C. Saunders 2. Java RDB API and Object-Relational Modeling - C. Saunders 3. JERI directions in XAL. J. Patton 4. CFW Internal Multiple Documents - C. Saunders 5. XAL/CFW discussion - T. Pelaia, C. Saunders, C. Foulkes, etc. 6. What's next? - Ned Arnold 7. Epics V4 functional requirements report - Marty Kraimer

Pioneering Science and Technology Office of Science U.S. Department of Energy 18 IRMIS PV Viewer Started out as PHP version of Oracle app-server viewer Decided that thin-clients not sufficient PV Viewer Foundation -Java Swing -Subset of XAL (later topic) -Java database access layer (later topic)

Pioneering Science and Technology Office of Science U.S. Department of Energy 19 IRMIS Java API Object-Relational Mapping (ORM) -Bridges gap between relational data model and object-oriented data model of applications -This “gap” responsible for a significant amount of development and maintenance hours -ORM allows focus on application and data, not transforming between the two models Java ORM Hibernate (Gavin King) -LGPL license -Development began in Joined jboss.org in 2003, so commercial support and training available -Very popular, mature, with active support forums -Excellent book “Hibernate in Action” ( Bauer, King)

Pioneering Science and Technology Office of Science U.S. Department of Energy 20 IRMIS Extensions Jeff Patton – work on ‘mining’ the pv database to integrate into the detailed physics RDB at SNS Coles Sibley -use of JERI as a global DCT for managing distributed databases

Pioneering Science and Technology Office of Science U.S. Department of Energy 21 Session E: Open Workshop, Discussion 1. Extending RDBCore - SNS experience J. Patton 2. ORM and extending RDBCore - C. Saunders 3. PV Crawler How to - C. Saunders 4. PV Usage-by-Client how-to - C. Saunders 5. Capfast Device Instantiation from RDB - R. Keitel 6. Workshop summary