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# (C) Copyright 2014-2016 Hewlett Packard Enterprise Development Company LP
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import numbers
import prettytable
import yaml
from osc_lib import exceptions as exc
from oslo_serialization import jsonutils
supported_formats = {
"json": lambda x: jsonutils.dumps(x, indent=2),
"yaml": yaml.safe_dump
}
# Decorator for cli-args
def arg(*args, **kwargs):
def _decorator(func):
# Because of the semantics of decorator composition if we just append
# to the options list positional options will appear to be backwards.
func.__dict__.setdefault('arguments', []).insert(0, (args, kwargs))
return func
return _decorator
def json_formatter(js):
formatter = (jsonutils.dumps(js, indent=2, ensure_ascii=False))
return formatter
def print_list(objs, fields, field_labels=None, formatters=None, sortby=None):
if formatters is None:
formatters = {}
field_labels = field_labels or fields
pt = prettytable.PrettyTable([f for f in field_labels],
caching=False, print_empty=False)
pt.align = 'l'
for o in objs:
row = []
for field in fields:
if field in formatters:
row.append(formatters[field](o))
elif isinstance(field, int):
row.append(o[field])
else:
data = getattr(o, field, None) or ''
row.append(data)
pt.add_row(row)
field_to_sort_by = field_labels[sortby] if sortby else None
pt_string = pt.get_string(sortby=field_to_sort_by)
print(pt_string)
def print_dict(d, formatters=None):
if formatters is None:
formatters = {}
pt = prettytable.PrettyTable(['Property', 'Value'],
caching=False, print_empty=False)
pt.align = 'l'
for field in d:
if field in formatters:
pt.add_row([field, formatters[field](d[field])])
else:
pt.add_row([field, d[field]])
pt_string = pt.get_string(sortby='Property')
print(pt_string)
def format_parameters(params):
'''Reformat parameters into dict of format expected by the API.'''
if not params:
return {}
# expect multiple invocations of --parameters but fall back
# to ; delimited if only one --parameters is specified
if len(params) == 1:
if params[0].find(';') != -1: # found
params = params[0].split(';')
else:
params = params[0].split(',')
parameters = {}
for p in params:
try:
(n, v) = p.split('=', 1)
except ValueError:
msg = '%s(%s). %s.' % ('Malformed parameter', p,
'Use the key=value format')
raise exc.CommandError(msg)
if n not in parameters:
parameters[n] = v
else:
if not isinstance(parameters[n], list):
parameters[n] = [parameters[n]]
parameters[n].append(v)
return parameters
def format_dimensions_query(dims):
if not dims:
return {}
# expect multiple invocations of --parameters but fall back
# to ; delimited if only one --parameters is specified
if len(dims) == 1:
if dims[0].find(';') != -1: # found
dims = dims[0].split(';')
else:
dims = dims[0].split(',')
dimensions = {}
for p in dims:
try:
(n, v) = p.split('=', 1)
except ValueError:
n = p
v = ""
dimensions[n] = v
return dimensions
def format_dimensions(dict):
return 'dimensions: {\n' + format_dict(dict) + '\n}'
def format_expression_data(data):
# takes an dictionary containing a dict
string_list = list()
for k, v in data.items():
if k == 'dimensions':
dim_str = format_dimensions(v)
string_list.append(dim_str)
else:
if isinstance(v, numbers.Number):
d_str = k + ': ' + str(v)
else:
d_str = k + ': ' + v
string_list.append(d_str)
return '\n'.join(string_list)
def format_dictlist(dict_list):
# takes list of dictionaries to format for output
string_list = list()
for mdict in dict_list:
kv_list = list()
for k, v in sorted(mdict.items()):
kv_str = k + ':' + str(v)
kv_list.append(kv_str)
# a string of comma separated k:v
this_dict_str = ','.join(kv_list)
string_list.append(this_dict_str)
return '\n'.join(string_list)
def format_dict(dict):
# takes a dictionary to format for output
dstring_list = list()
for k, v in dict.items():
if isinstance(v, numbers.Number):
d_str = k + ': ' + str(v)
else:
d_str = k + ': ' + v
dstring_list.append(d_str)
return '\n'.join(dstring_list)
def format_list(in_list):
string_list = list()
for k in in_list:
if isinstance(k, str):
key = k.encode('utf-8')
else:
key = k
string_list.append(key)
return b'\n'.join(string_list)
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