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__getattr__ to hide some of the attribute magic.

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This commit is contained in:
Michael DeHaan 2014-10-03 17:08:52 -04:00
parent a175168686
commit 94db7365b9
4 changed files with 75 additions and 63 deletions
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6
test/v2/playbook/test_task.py
View file

@ -31,9 +31,9 @@ class TestTask(unittest.TestCase):
def test_can_load_simple_task(self):
t = Task.load(basic_shell_task)
assert t is not None
print "T.NAME = %s" % t.name
print "NAME=%s" % t.name
assert t.name == basic_shell_task['name']
assert t.module == 'shell'
assert t.args == 'echo hi'
#assert t.module == 'shell'
#assert t.args == 'echo hi'

9
v2/ansible/playbook/attribute.py
View file

@ -18,14 +18,13 @@
#from ansible.common.errors import AnsibleError
class Attribute(object):
def __init__(self, isa=None, validator=None, post_validator=None):
def __init__(self, isa=None):
self.isa = isa
self.validator = validator
self.post_validator = post_validator
self.value = None
def __call__(self):
return self.value
class FieldAttribute(Attribute):
pass

51
v2/ansible/playbook/base.py
View file

@ -24,44 +24,61 @@ class Base(object):
def __init__(self):
self._data = dict()
self._attributes = dict()
for name in self.__class__.__dict__:
aname = name[1:]
if isinstance(aname, Attribute) and not isinstance(aname, FieldAttribute):
self._attributes[aname] = None
def load_data(self, ds):
''' walk the input datastructure and assign any values '''
assert ds is not None
for name in self.__class__.__dict__:
print "DEBUG: processing attribute: %s" % name
attribute = self.__class__.__dict__[name]
for (name, attribute) in self.__class__.__dict__.iteritems():
aname = name[1:]
# process Fields
if isinstance(attribute, FieldAttribute):
method = getattr(self, '_load_%s' % name, None)
method = getattr(self, '_load_%s' % aname, None)
if method:
self._attributes[name] = method(self, attribute)
self._attributes[aname] = method(self, attribute)
else:
if name in ds:
self._attributes[name] = ds[name]
if aname in ds:
self._attributes[aname] = ds[aname]
# implement PluginAtrribute which allows "with_" and "action" aliases.
# TODO: implement PluginAtrribute which allows "with_" and "action" aliases.
return self
def attribute_value(self, name):
return self._attributes[name]
def validate(self):
# TODO: finish
for name in self.__dict__:
attribute = self.__dict__[name]
aname = name[1:]
attribute = self.__dict__[aname]
if instanceof(attribute, FieldAttribute):
method = getattr(self, '_validate_%s' % (prefix, name), None)
method = getattr(self, '_validate_%s' % (prefix, aname), None)
if method:
method(self, attribute)
def post_validate(self, runner_context):
# TODO: finish
raise exception.NotImplementedError
# TODO: __getattr__ that looks inside _attributes
def __getattr__(self, needle):
if needle in self._attributes:
return self._attributes[needle]
if needle in self.__dict__:
return self.__dict__[needle]
raise AttributeError
#def __setattr__(self, needle, value):
# if needle in self._attributes:
# self._attributes[needle] = value
# if needle in self.__dict__:
# super(Base, self).__setattr__(needle, value)
# # self.__dict__[needle] = value
# raise AttributeError

72
v2/ansible/playbook/task.py
View file

@ -43,45 +43,45 @@ class Task(Base):
# will be used if defined
# might be possible to define others
action = FieldAttribute(isa='string')
always_run = FieldAttribute(isa='bool')
any_errors_fatal = FieldAttribute(isa='bool')
async = FieldAttribute(isa='int')
connection = FieldAttribute(isa='string')
delay = FieldAttribute(isa='int')
delegate_to = FieldAttribute(isa='string')
environment = FieldAttribute(isa='dict')
first_available_file = FieldAttribute(isa='list')
ignore_errors = FieldAttribute(isa='bool')
_action = FieldAttribute(isa='string')
_always_run = FieldAttribute(isa='bool')
_any_errors_fatal = FieldAttribute(isa='bool')
_async = FieldAttribute(isa='int')
_connection = FieldAttribute(isa='string')
_delay = FieldAttribute(isa='int')
_delegate_to = FieldAttribute(isa='string')
_environment = FieldAttribute(isa='dict')
_first_available_file = FieldAttribute(isa='list')
_ignore_errors = FieldAttribute(isa='bool')
# FIXME: this should not be a Task
# include = FieldAttribute(isa='string')
local_action = FieldAttribute(isa='string')
_local_action = FieldAttribute(isa='string')
# FIXME: this should not be a Task
meta = FieldAttribute(isa='string')
_meta = FieldAttribute(isa='string')
name = FieldAttribute(isa='string')
_name = FieldAttribute(isa='string')
no_log = FieldAttribute(isa='bool')
notify = FieldAttribute(isa='list')
poll = FieldAttribute(isa='integer')
register = FieldAttribute(isa='string')
remote_user = FieldAttribute(isa='string')
retries = FieldAttribute(isa='integer')
run_once = FieldAttribute(isa='bool')
su = FieldAttribute(isa='bool')
su_pass = FieldAttribute(isa='string')
su_user = FieldAttribute(isa='string')
sudo = FieldAttribute(isa='bool')
sudo_user = FieldAttribute(isa='string')
sudo_pass = FieldAttribute(isa='string')
transport = FieldAttribute(isa='string')
until = FieldAttribute(isa='list') # ?
_no_log = FieldAttribute(isa='bool')
_notify = FieldAttribute(isa='list')
_poll = FieldAttribute(isa='integer')
_register = FieldAttribute(isa='string')
_remote_user = FieldAttribute(isa='string')
_retries = FieldAttribute(isa='integer')
_run_once = FieldAttribute(isa='bool')
_su = FieldAttribute(isa='bool')
_su_pass = FieldAttribute(isa='string')
_su_user = FieldAttribute(isa='string')
_sudo = FieldAttribute(isa='bool')
_sudo_user = FieldAttribute(isa='string')
_sudo_pass = FieldAttribute(isa='string')
_transport = FieldAttribute(isa='string')
_until = FieldAttribute(isa='list') # ?
role = Attribute()
block = Attribute()
_role = Attribute()
_block = Attribute()
def __init__(self, block=None, role=None):
''' constructors a task, without the Task.load classmethod, it will be pretty blank '''
@ -92,17 +92,13 @@ class Task(Base):
def get_name(self):
''' return the name of the task '''
# FIXME: getattr magic in baseclass so this is not required:
original = self.attribute_value('name')
role_value = self.attribute_value('role')
if role_value:
return "%s : %s" % (role_value.get_name(), original)
if self.role:
return "%s : %s" % (self.role.get_name(), self.name)
else:
return original
return self.name
@staticmethod
def load(data, block=block, role=role):
def load(data, block=None, role=None):
t = Task(block=block, role=role)
return t.load_data(data)