def parse_cps_parameters(module_name,
qualifier,
attr_type,
attr_data,
operation=None,
db=None,
commit_event=None):
obj = cps_object.CPSObject(module=module_name, qual=qualifier)
if operation:
obj.set_property('oper', operation)
if attr_type:
for key, val in iteritems(attr_type):
cps_utils.cps_attr_types_map.add_type(key, val)
for key, val in iteritems(attr_data):
embed_attrs = key.split(',')
embed_attrs_len = len(embed_attrs)
if embed_attrs_len >= 3:
obj.add_embed_attr(embed_attrs, val, embed_attrs_len - 2)
else:
if isinstance(val, str):
val_list = val.split(',')
# Treat as list if value contains ',' but is not
# enclosed within {}
if len(val_list) == 1 or val.startswith('{'):
obj.add_attr(key, val)
else:
obj.add_attr(key, val_list)
else:
obj.add_attr(key, val)
if db:
cps.set_ownership_type(obj.get_key(), 'db')
obj.set_property('db', True)
else:
obj.set_property('db', False)
if commit_event:
cps.set_auto_commit_event(obj.get_key(), True)
obj.set_property('commit-event', True)
return obj
def object_from_parameters(prog,description, optional_fields=[]):
"""
Uses Argparse to parse the program's command line arguments into an object.
@param prog the name of the program (passed into argparse)
@param description of the program (also passed to argparse)
@param list_of_required_fields is used to determine which field is mandatory/not required valid values include "mod","qual","oper","attr"
"""
_qualifiers = cps.QUALIFIERS
parser = argparse.ArgumentParser(prog=prog, description=description)
parser.add_argument('module',help='The object\'s name and optional qualifier. For instance: cps/node-group or if/interfaces/interface. A qualifier can optionally be placed at the beginning')
parser.add_argument('additional',help='This field can contain a series of object attributes in the form of attr=value combinations',action='append',nargs='*')
parser.add_argument('-mod',help='An alternate way to specify the module name', metavar='module',required=False,action='store',nargs=1)
parser.add_argument('-d',help='Print some additional details about the objects parsed and sent to the backend', required=False, action='store_true')
parser.add_argument('-qua',choices=cps.QUALIFIERS,help='The object\'s qualifier',required=False,action='store')
parser.add_argument('-attr',help='Object attributes in the form of attr=value', required=False,action='append')
parser.add_argument('-db',help='Attempt to use the db directly to satisfy the request instad of the normally registered object', required=False,action='store_true')
if 'oper' in optional_fields :
parser.add_argument('-oper',choices=cps.OPERATIONS, help='The operation types. This is only used in CPS commit operations', required=True,action='store')
if 'commit-event' in optional_fields :
parser.add_argument('-commit-event',help='This flag will try to force the default state of the auto-commit event to true. This is only used in CPS commit operations', required=False,action='store_true')
_args = vars(parser.parse_args())
if 'd' in _args and _args['d']:
print _args
_qual_list = cps.QUALIFIERS
_class_name = _args['module']
_attrs=[]
qual = _qual_list[0]
if len(_class_name) > 0:
_lst = _class_name.split(cps.PATH_SEP,1);
if len(_lst)>0 and _lst[0] in _qual_list:
_class_name = _lst[1]
qual = _lst[0]
if 'additional' in _args and _args['additional']!=None:
_lst = _args['additional'][0]
for i in range(0,len(_lst)):
if _lst[i] in _qual_list:
qual = _lst[i]
else:
_attrs.append(_lst[i])
if 'attr' in _args and _args['attr']!=None :
for i in _args['attr']:
_attrs.append(i)
if 'qua' in _args and _args['qua']!=None:
qual = _args['qua']
if len(_class_name)>0 and _class_name[len(_class_name)-1]=='/':
_class_name = _class_name[0:-1]
obj = CPSObject(_class_name,qual)
if 'oper' in _args and _args['oper']!=None:
if 'd' in _args and _args['d']: print('Operation type is: %s' %_args['oper'])
obj.set_property('oper',_args['oper'])
for i in _attrs:
if i.find('=')==-1:
continue
_data = i.split('=', 1)
# When value for attribute is empty, use None to indicate attribute delete
_val = None
if len(_data[1]) != 0:
_val = _data[1]
# For embedded attribute check if comma seperated attribute list is given
# then add it as embedded
embed_attrs = _data[0].split(',')
if len(embed_attrs) == 3:
obj.add_embed_attr(embed_attrs,_val)
else:
val_list = _data[1].split(',')
# Treat as leaf list if value contains ',' but is not
# enclosed within {}
if len(val_list) == 1 or _data[1][0] == '{':
obj.add_attr(_data[0],_val)
else:
obj.add_attr(_data[0],val_list)
if 'db' in _args and _args['db']:
if 'd' in _args and _args['d']:
print('Attempt to force database use')
cps.set_ownership_type(obj.get_key(),'db')
obj.set_property('db',True)
else:
obj.set_property('db',False)
if 'commit_event' in _args and _args['commit_event']:
if 'd' in _args and _args['d']:
print('Attempt to force use of auto-event for requested change on %s' % obj.get_key())
cps.set_auto_commit_event(obj.get_key(),True)
obj.set_property('commit-event',True)
if 'd' in _args and _args['d']:
print obj.get()
return obj
