Right panel perf

[will-moore]

Improves performance of loading right panel for single Objects (Project, Dataset, Image, Screen, Plate, Well, PlateAcquisition)

I looked into the timing for getObject() with group: -1 and found that is slower when the user is logged-in to a large group (even if that group is private).

E.g. about 1 second in the code below.

It's actually faster to:

• perform a preliminary queryService.get() to get the object, get it's group ID...
• and then use that group ID for getObject()
• These 2 queries take about 0.02 seconds in the code below.

import argparse
import sys
from datetime import datetime

from omero.cli import cli_login
from omero.gateway import BlitzGateway

def main(argv):
    parser = argparse.ArgumentParser()
    parser.add_argument('dataset', type=int, help='Dataset ID')
    args = parser.parse_args(argv)

    with cli_login() as cli:
        conn = BlitzGateway(client_obj=cli._client)
        dataset_id = args.dataset
        for test in range(10):
            start = datetime.now()
            if test % 2 == 0:
                # Use group: -1 via get(), then set group for conn.getObject()
                group_id = conn.getQueryService().get("Dataset", dataset_id, {'group': '-1'}).details.group.id.val
            else:
                group_id = -1
            conn.SERVICE_OPTS.setOmeroGroup(group_id,)
            dataset = conn.getObject("Dataset", dataset_id)
            print(datetime.now() - start, "group_id", group_id)

if __name__ == '__main__':
    main(sys.argv[1:])

prints:

0:00:00.031096 group_id 2
0:00:01.097150 group_id -1
0:00:00.028419 group_id 2
0:00:00.999497 group_id -1
0:00:00.019667 group_id 2
0:00:01.045434 group_id -1
0:00:00.021599 group_id 2
0:00:01.070055 group_id -1
0:00:00.023816 group_id 2
0:00:00.942411 group_id -1