class Core_ControlCollection(Plugin):
def init(self):
self.__registry = PluginRegistry(*CONTROLPATHS)
def query(self, query):
matches = self.__registry.get_plugins(query)
return matches
class _PluginRegistry:
def __init__(self):
# prevent from recursion
self.__cache = {}
# table: query -> result
self.__query_cache = {}
path = os.path.dirname(__file__)
self.__registry = PluginRegistry(os.path.join(path, "plugins"))
def get_plugins_by_pattern(self, key, pattern):
query = "(MATCH '%s' '%s')" % (key, pattern)
if (not query in self.__query_cache):
result = self.__registry.get_plugins(query)
self.__query_cache[query] = result[:]
else:
result = self.__query_cache[query]
ret = []
for c in result:
if c not in self.__cache:
self.__cache[c] = c()
self.__cache[c].init()
ret.append( self.__cache[c] )
return ret
#
# Returns a control providing the given interfaces.
#
def get_plugin(self, name, *interfaces):
result = self.get_plugins_by_pattern("name", name)
if (result):
return result[0]