python-awips/awips/UsageArgumentParser.py
2018-10-16 21:33:43 -06:00

62 lines
2.1 KiB
Python

#
# SOFTWARE HISTORY
#
# Date Ticket# Engineer Description
# ------------- -------- --------- ---------------------------------------------
# Feb 13, 2017 6092 randerso Added StoreTimeAction
#
import argparse
import sys
import time
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.db.objects import DatabaseID
from dynamicserialize.dstypes.com.raytheon.uf.common.dataplugin.gfe.db.objects import ParmID
TIME_FORMAT = "%Y%m%d_%H%M"
class UsageArgumentParser(argparse.ArgumentParser):
"""
A subclass of ArgumentParser that overrides error() to print the
whole help text, rather than just the usage string.
"""
def error(self, message):
sys.stderr.write('%s: error: %s\n' % (self.prog, message))
self.print_help()
sys.exit(2)
# Custom actions for ArgumentParser objects
class StoreDatabaseIDAction(argparse.Action):
def __call__(self, parser, namespace, values, option_string=None):
did = DatabaseID(values)
if did.isValid():
setattr(namespace, self.dest, did)
else:
parser.error("DatabaseID [" + values + "] not a valid identifier")
class AppendParmNameAndLevelAction(argparse.Action):
def __call__(self, parser, namespace, values, option_string=None):
tx = ParmID.parmNameAndLevel(values)
comp = tx[0] + '_' + tx[1]
if (hasattr(namespace, self.dest)) and (getattr(namespace, self.dest) is not None):
currentValues = getattr(namespace, self.dest)
currentValues.append(comp)
setattr(namespace, self.dest, currentValues)
else:
setattr(namespace, self.dest, [comp])
class StoreTimeAction(argparse.Action):
"""
argparse.Action subclass to validate GFE formatted time strings
and parse them to time.struct_time
"""
def __call__(self, parser, namespace, values, option_string=None):
try:
timeStruct = time.strptime(values, TIME_FORMAT)
setattr(namespace, self.dest, timeStruct)
except ValueError:
parser.error(str(values) + " is not a valid time string of the format YYYYMMDD_hhmm")