def _load_all_resources():
manager = plugin_manager.PluginManager('heat.engine.resources')
resource_mapping = plugin_manager.PluginMapping('resource')
res_plugin_mappings = resource_mapping.load_all(manager)
for mapping in res_plugin_mappings:
name, cls = mapping
if all_resources.get(name) is not None:
all_resources[name].append(cls)
else:
all_resources[name] = [cls]
def _load_global_resources(env):
manager = plugin_manager.PluginManager(__name__)
# Sometimes resources should not be available for registration in Heat due
# to unsatisfied dependencies. We look first for the function
# 'available_resource_mapping', which should return the filtered resources.
# If it is not found, we look for the legacy 'resource_mapping'.
resource_mapping = plugin_manager.PluginMapping(
['available_resource', 'resource'])
constraint_mapping = plugin_manager.PluginMapping('constraint')
_register_resources(env, resource_mapping.load_all(manager))
_register_constraints(env, constraint_mapping.load_all(manager))
def _load_all_resources():
from oslo_log import log as logging
logging.getLogger('heat.engine.environment').logger.setLevel(logging.ERROR)
manager = plugin_manager.PluginManager('heat.engine.resources')
resource_mapping = plugin_manager.PluginMapping('resource')
res_plugin_mappings = resource_mapping.load_all(manager)
for mapping in res_plugin_mappings:
name, cls = mapping
if all_resources.get(name) is not None:
all_resources[name].append(cls)
else:
all_resources[name] = [cls]
def test_load_all(self):
import heat.tests.test_plugin_manager
mgr = plugin_manager.PluginManager('heat.tests')
pm = plugin_manager.PluginMapping('current_test')
# NOTE(chmou): We force the modules to be ourself so we can get
# the current_test_mapping if not we will would be
# skipped by plugin_loader.load_modules since we are skipping
# the loading of the package with tests in there
mgr.modules = [heat.tests.test_plugin_manager]
all_items = pm.load_all(mgr)
for item in current_test_mapping().iteritems():
self.assertIn(item, all_items)
def _load_global_resources(env):
_register_constraints(
env, _get_mapping('heat.constraints')) # 注册约束 约束的格式：name：plugin
_register_stack_lifecycle_plugins(
env, _get_mapping('heat.stack_lifecycle_plugins')) # 生命周期
_register_event_sinks(env, _get_mapping('heat.event_sinks')) # 事件接收
manager = plugin_manager.PluginManager(
__name__) # __name__ = __main__, 被调用时 = __init__
# TODO: 遗留问题，此处为何传参是 __name__?
# Sometimes resources should not be available for registration in Heat due
# to unsatisfied dependencies. We look first for the function
# 'available_resource_mapping', which should return the filtered resources.
# If it is not found, we look for the legacy 'resource_mapping'.
# 首先查找自己定义的可用的资源，没有就查找 resource_mapping
resource_mapping = plugin_manager.PluginMapping(
['available_resource', 'resource']) #
constraint_mapping = plugin_manager.PluginMapping('constraint')
_register_resources(env, resource_mapping.load_all(manager))
_register_constraints(env, constraint_mapping.load_all(manager))
