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from earthdiagnostics.diagnostic import Diagnostic, DiagnosticOption, DiagnosticComplexStrOption, DiagnosticDomainOption
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from earthdiagnostics.utils import Utils
from earthdiagnostics.variable import Domain
class Attribute(Diagnostic):
"""
Rewrites files without doing any calculations.
Can be useful to convert units or to correct wrong metadata
:original author: Javier Vegas-Regidor<javier.vegas@bsc.es>
:created: July 2016
:param data_manager: data management object
:type data_manager: DataManager
:param startdate: startdate
:type startdate: str
:param member: member number
:type member: int
:param chunk: chunk's number
:type chunk: int
:param variable: variable's name
:type variable: str
:param domain: variable's domain
:type domain: Domain
"""
alias = 'att'
"Diagnostic alias for the configuration file"
def __init__(self, data_manager, startdate, member, chunk, domain, variable, grid,
attributte_name, attributte_value):
Diagnostic.__init__(self, data_manager)
self.startdate = startdate
self.member = member
self.chunk = chunk
self.variable = variable
self.domain = domain
self.grid = grid
self.attributte_name = attributte_name
self.attributte_value = attributte_value
def __str__(self):
return 'Write attributte output Startdate: {0} Member: {1} Chunk: {2} ' \
'Variable: {3}:{4} Attributte:{5}:{6}'.format(self.startdate, self.member, self.chunk, self.domain,
self.variable, self.attributte_name, self.attributte_value)
def __eq__(self, other):
return self.startdate == other.startdate and self.member == other.member and self.chunk == other.chunk and \
self.domain == other.domain and self.variable == other.variable and \
self.attributte_name == other.attributte_name and self.attributte_value == other.attributte_value
@classmethod
def generate_jobs(cls, diags, options):
"""
Creates a job for each chunk to compute the diagnostic
:param diags: Diagnostics manager class
:type diags: Diags
:param options: variable, domain, grid
:type options: list[str]
:return:
"""
options_available = (DiagnosticOption('variable'),
DiagnosticDomainOption('domain'),
DiagnosticOption('name'),
DiagnosticComplexStrOption('value'),
DiagnosticOption('grid'))
options = Diagnostic.process_options(options, options_available)
job_list = list()
for startdate, member, chunk in diags.config.experiment.get_chunk_list():
job_list.append(Attribute(diags.data_manager, startdate, member, chunk,
options['domain'], options['variable'], options['grid'], options['grid'],
options['value']))
return job_list
def compute(self):
"""
Runs the diagnostic
"""
variable_file = self.data_manager.get_file(self.domain, self.variable, self.startdate, self.member, self.chunk,
grid=self.grid)
handler = Utils.openCdf(variable_file)
handler.setncattr(self.attributte_name, self.attributte_value)
handler.close()
if not Utils.check_netcdf_file(variable_file):
raise Exception('Attribute {0} can not be set correctly to {1}'.format(self.attributte_name,
self.attributte_value))
self.send_file(variable_file, self.domain, self.variable, self.startdate, self.member, self.chunk,
grid=self.grid)