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IMAS Access Layer  - 20.09

The goals of Access Layer

—Implemented to allow data access for the users/applications

—AL operates only at the IDS level

—AL allows “atomic” operations such as:

—put or get data (IDS),

—access to single time slices of data (IDS)

Access Layer architecture (Bartek)

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High Level Interfaces and their API (Application Programming Interface)

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The following code opens the existing MDS+ pulse file created previously for shot=15000, run=1, from the 'data_access_tutorial' database of the current user:

import imas
import getpass
from imas import imasdef
#creates the Data Entry object 'data_entry' associated  to the pulse file with shot=15000, run=1, belonging to database 'data_access_tutorial' of the current user, using the MDS+ backend
data_entry = imas.DBEntry(imasdef.MDSPLUS_BACKEND, 'data_access_tutorial, 15000, 1, user_name=getpass.getuser())
#opens the pulse file associated to the Data Entry object 'data_entry' previously created
data_entry.open() 

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