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#!/usr/bin/python
#
# Copyright (C) 2014 Ipsilon project Contributors, for licensee see COPYING
from ipsilon.util.log import Log
class Config(Log):
def __init__(self, name, *args):
self.name = name
self._list = list()
self._dict = dict()
for item in args:
if not isinstance(item, Option):
raise ValueError('Invalid option type for %s' % repr(item))
self._list.append(item.name)
self._dict[item.name] = item
self.debug('Config(%s) %s' % (self.name, self._dict))
def __repr__(self):
return '%s: %s' % (self.__class__, ', '.join(self._list))
def __str__(self):
return str(self._list)
def __len__(self):
return len(self._list)
def __getitem__(self, key):
return self._dict[key]
def __setitem__(self, key, value):
if not isinstance(value, Option):
raise ValueError('Invalid type for %s' % value)
if key != value.name:
raise NameError('Name mismatch, key=%s but value.name=%s' % (
key, value.name))
if key not in self._list:
self._list.append(key)
self._dict[key] = value
def __delitem__(self, key):
self._list.remove(key)
del self._dict[key]
def __iter__(self):
i = 0
while i < len(self._list):
yield self._list[i]
i += 1
def __reversed__(self):
i = len(self._list)
while i > 0:
yield self._list[i - 1]
i -= 1
def __contains__(self, item):
return (item in self._dict)
def iteritems(self):
i = 0
while i < len(self._list):
yield (self._list[i], self._dict[self._list[i]])
i += 1
def items(self):
return [(k, self._dict[k]) for k in self._list]
class Option(Log):
def __init__(self, name, description):
self.name = name
self.description = description
self._default_value = None
self._assigned_value = None
def __repr__(self):
return "%s: %s {%s}, value = %s [def: %s]" % (self.__class__,
self.name,
self.description,
self._assigned_value,
self._default_value)
def __str__(self):
return '%s=%s' % (self.name, self.get_value())
def get_value(self, default=True):
if self._assigned_value is not None:
return self._assigned_value
elif default is True:
return self._default_value
else:
return None
def set_value(self, value):
self._assigned_value = value
def export_value(self):
raise NotImplementedError
def import_value(self, value):
raise NotImplementedError
def _str_export_value(self):
if self._assigned_value:
return str(self._assigned_value)
return None
def _str_import_value(self, value):
if type(value) is not str:
raise ValueError('Value must be string')
self._assigned_value = value
class String(Option):
def __init__(self, name, description, default_value=None):
super(String, self).__init__(name, description)
self._default_value = str(default_value)
def set_value(self, value):
self._assigned_value = str(value)
def export_value(self):
return self._str_export_value()
def import_value(self, value):
self._str_import_value(value)
class Template(Option):
def __init__(self, name, description, default_template=None):
super(Template, self).__init__(name, description)
self._default_value = str(default_template)
def set_value(self, value):
self._assigned_value = str(value)
def templatize(self, args):
if not args:
raise ValueError('Templatized called w/o arguments')
return self.get_value() % args
def export_value(self):
return self._str_export_value()
def import_value(self, value):
self._str_import_value(value)
class List(Option):
def __init__(self, name, description, default_list=None):
super(List, self).__init__(name, description)
if default_list:
self._default_value = list(default_list)
else:
self._default_value = []
def set_value(self, value):
self._assigned_value = list(value)
def export_value(self):
if self._assigned_value:
return ','.join(self._assigned_value)
return None
def import_value(self, value):
if type(value) is not str:
raise ValueError('Value (type: %s) must be string' % type(value))
self._assigned_value = [x.strip() for x in value.split(',')]
class Choice(Option):
def __init__(self, name, description, allowed=None, default=None):
super(Choice, self).__init__(name, description)
if allowed:
self._allowed_values = list(allowed)
else:
self._allowed_values = list()
self._default_value = list()
if default is None:
default = []
for name in default:
if name not in self._allowed_values:
raise ValueError(
'item [%s] is not in allowed [%s]' % (name, allowed))
self._default_value.append(name)
def __repr__(self):
return "%s: %s {%s}, values = %s d:%s ok:%s" % (self.__class__,
self.name,
self.description,
self._assigned_value,
self._default_value,
self._allowed_values)
def __str__(self):
return '%s=%s' % (self.name, self.get_value())
def set_value(self, value):
if type(value) is not list:
value = [value]
self._assigned_value = list()
for val in value:
if val not in self._allowed_values:
raise ValueError(
'Value "%s" not allowed [%s]' % (val,
self._allowed_values))
self._assigned_value.append(val)
if not self._assigned_value:
self._assigned_value = None
def unset_value(self, value):
if type(value) is str:
value = [value]
unset = list()
for val in value:
unset.append((val, False))
self.set_value(unset)
def get_allowed(self):
return self._allowed_values
def export_value(self):
enabled = self.get_value()
return ', '.join(enabled)
def import_value(self, value):
enabled = [x.strip() for x in value.split(',')]
if enabled:
if self._assigned_value is None:
self._assigned_value = list()
for val in enabled:
if val not in self._allowed_values:
# We silently ignore invalid options on import for now
continue
self._assigned_value.append(val)
class Pick(Option):
def __init__(self, name, description, allowed, default_value):
super(Pick, self).__init__(name, description)
self._allowed_values = list(allowed)
if default_value not in self._allowed_values:
raise ValueError('The default value is not in the allowed list')
self._default_value = default_value
def set_value(self, value):
if value not in self._allowed_values:
raise ValueError(
'Value "%s" not allowed [%s]' % (value, self._allowed_values))
self._assigned_value = value
def get_allowed(self):
return self._allowed_values
def export_value(self):
return self._str_export_value()
def import_value(self, value):
self._str_import_value(value)
class Condition(Pick):
def __init__(self, name, description, default_value=False):
super(Condition, self).__init__(name, description,
[True, False], default_value)
def import_value(self, value):
self._assigned_value = value == 'True'
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