def get_sample_log(workspace, log_name):
table = s_api.CreateLogPropertyTable(workspace,
log_name,
EnableLogging=False)
log_value = table.cell(0, 0) if table else None
s_api.DeleteWorkspace(table, EnableLogging=False)
return log_value
def _can_merge(self, wsnames):
"""
Checks whether given workspaces can be merged
"""
# mandatory properties must be identical
result = api.CompareSampleLogs(wsnames, self.mandatory_properties[1:],
0.01)
if len(result) > 0:
raise RuntimeError("Sample logs " + result + " do not match!")
# chopper_speed can vary about 10 and for some reason it is string (will be corrected in the future)
cstable = api.CreateLogPropertyTable(wsnames, 'chopper_speed')
chopper_speeds = [int(val) for val in cstable.column(0)]
if max(chopper_speeds) - min(
chopper_speeds) > 10: # not within tolerance of 10 rpm
self.log().warning(
"Chopper speeds do not match! Chopper speeds are: " +
" ,".join([str(val) for val in chopper_speeds]))
api.DeleteWorkspace(cstable)
# timing (x-axis binning) must match
# is it possible to use WorkspaceHelpers::matchingBins from python?
self.timingsMatch(wsnames)
# Check sample logs for must have properties
for wsname in wsnames:
wks = api.AnalysisDataService.retrieve(wsname)
run = wks.getRun()
for prop in self.must_have_properties:
if not run.hasProperty(prop):
message = "Error: Workspace " + wsname + " does not have property " + prop +\
". Cannot merge."
self.log().error(message)
raise RuntimeError(message)
# warnig if optional properties are not identical must be given
result = api.CompareSampleLogs(wsnames, self.optional_properties, 0.01)
if len(result) > 0:
self.log().warning("Sample logs " + result + " do not match!")
return True