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# (c) 2012-2014, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
from ansible.playbook.attribute import NonInheritableFieldAttribute
from ansible.playbook.task import Task
from ansible.module_utils.six import string_types
class Handler(Task):
listen = NonInheritableFieldAttribute(isa='list', default=list, listof=string_types, static=True)
def __init__(self, block=None, role=None, task_include=None):
self.notified_hosts = []
self.cached_name = False
super(Handler, self).__init__(block=block, role=role, task_include=task_include)
def __repr__(self):
''' returns a human-readable representation of the handler '''
return "HANDLER: %s" % self.get_name()
@staticmethod
def load(data, block=None, role=None, task_include=None, variable_manager=None, loader=None):
t = Handler(block=block, role=role, task_include=task_include)
return t.load_data(data, variable_manager=variable_manager, loader=loader)
def notify_host(self, host):
if not self.is_host_notified(host):
self.notified_hosts.append(host)
return True
return False
def remove_host(self, host):
self.notified_hosts = [h for h in self.notified_hosts if h != host]
def clear_hosts(self):
self.notified_hosts = []
def is_host_notified(self, host):
return host in self.notified_hosts
def serialize(self):
result = super(Handler, self).serialize()
result['is_handler'] = True
return result
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