def from_run_start(cls, run_start, verify_integrity=False):
"""
Build a Header from a RunStart Document.
Parameters
----------
run_start : metadatastore.document.Document or str
RunStart Document or uid
Returns
-------
header : databroker.broker.Header
"""
run_start_uid = mc.doc_or_uid_to_uid(run_start)
run_start = mc.run_start_given_uid(run_start_uid)
try:
run_stop = doc.ref_doc_to_uid(mc.stop_by_start(run_start_uid),
'run_start')
except mc.NoRunStop:
run_stop = None
try:
ev_descs = [doc.ref_doc_to_uid(ev_desc, 'run_start')
for ev_desc in
mc.descriptors_by_start(run_start_uid)]
except mc.NoEventDescriptors:
ev_descs = []
d = {'start': run_start, 'stop': run_stop, 'descriptors': ev_descs}
return cls('header', d)
def test_run_stop_by_run_start():
run_start_uid, e_desc_uid, data_keys = setup_syn()
run_stop_uid = mdsc.insert_run_stop(run_start_uid,
ttime.time(), uid=str(uuid.uuid4()))
run_start = mdsc.run_start_given_uid(run_start_uid)
run_stop = mdsc.run_stop_given_uid(run_stop_uid)
ev_desc = mdsc.descriptor_given_uid(e_desc_uid)
run_stop2 = mdsc.stop_by_start(run_start)
run_stop3 = mdsc.stop_by_start(run_start_uid)
assert run_stop == run_stop2
assert run_stop == run_stop3
ev_desc2, = mdsc.descriptors_by_start(run_start)
ev_desc3, = mdsc.descriptors_by_start(run_start_uid)
assert ev_desc == ev_desc2
assert ev_desc == ev_desc3
def test_run_stop_by_run_start():
run_start_uid, e_desc_uid, data_keys = setup_syn()
run_stop_uid = mdsc.insert_run_stop(run_start_uid,
ttime.time(), uid=str(uuid.uuid4()))
run_start = mdsc.run_start_given_uid(run_start_uid)
run_stop = mdsc.run_stop_given_uid(run_stop_uid)
ev_desc = mdsc.descriptor_given_uid(e_desc_uid)
run_stop2 = mdsc.stop_by_start(run_start)
run_stop3 = mdsc.stop_by_start(run_start_uid)
assert_equal(run_stop, run_stop2)
assert_equal(run_stop, run_stop3)
ev_desc2, = mdsc.descriptors_by_start(run_start)
ev_desc3, = mdsc.descriptors_by_start(run_start_uid)
assert_equal(ev_desc, ev_desc2)
assert_equal(ev_desc, ev_desc3)