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Access Layer architecture (Bartek)
High Level Interfaces and their API (
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Application Programming Interface)
There are currently 5 High Level Interfaces (HLIs) available from the following programming languages:
- Fortran
- C++
- Java
- Python
- Matlab
Only Python and Matlab provide user interactive session for accessing IMAS data.
The HLI API covers all available Access Layer features:
- creating a so-called new IMAS Data Entry
- opening an existing IMAS Data Entry
- writing data from an IDS to a Data Entry
- reading data of an IDS from an existing Data Entry
- deleting an IDS from an existing Data Entry
- closing a Data Entry
A Data Entry is an IMAS concept for designating a pulse with given shot and run numbers located in some database (see below).
HLI API
(py as an example)
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As an example, we will describe the Python HLI.
Documentation of all others HLIs is available in the User guide: https://confluence.iter.org/display/IMP/Integrated+Modelling+Home+Page (Data Model and Access Layer User Guide)
open/create
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import imas
from imas import imasdef
#creates the Data Entry object 'data_entry' from the pulse file with shot=54178, run=0 belonging to database 'pcss_tutorial' of user 'g2lfleur'
data_entry = imas.DBEntry(imasdef.MDSPLUS_BACKEND, 'pcss_tutorial, 54178, 0, user_name=’g2lfleur’)
#opens the Data Entry object 'data_entry' previously created
imas_entry.open() |
put/putSlice
get/getSlice
delete_data
close
Acessing data from commandline (bartek palak)
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