Page History

...

A Data Entry is an IMAS concept for designating a pulse experiment  with given shot and run number located in some database (see below).

Methods exposed by High Level Interfaces:

• —Operations on data base entry
  • —CREATE
  • —OPEN
  • —DELETE
  • —CLOSE
• —Operations on IDSes  - AL operates at the IDS level (with some exceptions) providing only methods for “atomic” operations such as:
  • —PUT
  • —GET
  • —PUT_SLICE
  • —GET_SLICE

...

HLI API

...

(

...

Ludovic)

As an example, we will describe

HLI API (Ludovic)

For this tutorial, we will use the Python HLI.

Documentation of all others HLIs is available in the User guide available from this page: https://confluence.iter.org/display/IMP/Integrated+Modelling+Home+Page

...

Using get() and put() operations

In this tutorial, in order to illustrate the use of get() and put() operations

...

For use-case 1, we will:

1. create a new pulse file
2. open and read some (realistic) dynamic data read from an existing 'magnetics' IDS contained in a WEST pulse file (using open() and get() operation of the Access Layer)
   1. these data will be appended to a new 'magnetics' IDS
3. write the new magnetics IDS to the new pulse file created at step 1
4. close the two pulse files
5. check the content of the pulse file. For this purpose we will:
   • open the newly created pulse file
   • read the new magnetics IDS
   • display the dynamic data which has beed added in the IDS

...

Opening and reading some (realistic) dynamic data read from an existing 'magnetics' IDS contained in a WEST pulse file

The following code opens and reads a 'magnetics' IDS from WEST shot=54178, run=0 in the 'west' database of user 'g2lfleur':

#
#opens the Data Entry object 'data_entry' associated to the pulse file with shot=54178, run=0, belonging to database 'west' of user 'g2lfleur', using the MDS+ backend
west_data_entry = imas.DBEntry(imasdef.MDSPLUS_BACKEND, 'west, 54178, 0, user_name='g2lfleur')
#opens the pulse file associated to the Data Entry object 'data_entry' previously created
west_data_entry.open()
#reads the 'magnetics" IDS
west_data_entry.magnetics.get()

#copy the data of the first flux_loop to the new 'magnetics' IDS of the previously created data_entry
data_entry.magnetics.flux_loop

...

Using put() and putSlice() operations

In this tutorial, in order to illustrate the use of getSlice() and putSlice() operations, we will:

...