diff options
Diffstat (limited to 'ipsilon/util/plugin.py')
| -rwxr-xr-x | ipsilon/util/plugin.py | 137 |
1 files changed, 94 insertions, 43 deletions
diff --git a/ipsilon/util/plugin.py b/ipsilon/util/plugin.py index f303078..063767c 100755 --- a/ipsilon/util/plugin.py +++ b/ipsilon/util/plugin.py @@ -31,7 +31,7 @@ class Plugins(object): def __init__(self): self._providers_tree = None - def _load_class(self, tree, class_type, file_name): + def _load_class(self, tree, class_type, file_name, *pargs): cherrypy.log.error('Check module %s for class %s' % (file_name, class_type)) name, ext = os.path.splitext(os.path.split(file_name)[-1]) @@ -47,12 +47,12 @@ class Plugins(object): return if hasattr(mod, class_type): - instance = getattr(mod, class_type)() + instance = getattr(mod, class_type)(*pargs) public_name = getattr(instance, 'name', name) tree[public_name] = instance cherrypy.log.error('Added module %s as %s' % (name, public_name)) - def _load_classes(self, tree, path, class_type): + def _load_classes(self, tree, path, class_type, *pargs): files = None try: files = os.listdir(path) @@ -62,58 +62,108 @@ class Plugins(object): for name in files: filename = os.path.join(path, name) - self._load_class(tree, class_type, filename) + self._load_class(tree, class_type, filename, *pargs) - def get_plugins(self, path, class_type): + def get_plugins(self, path, class_type, *pargs): plugins = dict() - self._load_classes(plugins, path, class_type) + self._load_classes(plugins, path, class_type, *pargs) return plugins -class PluginLoader(object): +class PluginLoader(Log): def __init__(self, baseobj, facility, plugin_type): - config = AdminStore().load_options(facility) - cherrypy.log('LOAD: %s\n' % repr(config)) - whitelist = [] - if 'global' in config: - sec = config['global'] - if 'order' in sec: - whitelist = sec['order'].split(',') - if cherrypy.config.get('debug', False): - cherrypy.log('[%s] %s: %s' % (facility, whitelist, config)) - if config is None: - config = dict() + self._pathname, _ = os.path.split(inspect.getfile(baseobj)) + self.facility = facility + self._plugin_type = plugin_type + self.available = dict() + self.enabled = list() + self.__data = None + + # Defer initialization or instantiating the store will fail at load + # time when used with Installer plugins as the cherrypy config context + # is created after all Installer plugins are loaded. + @property + def _data(self): + if not self.__data: + self.__data = AdminStore() + return self.__data + def get_plugins(self): p = Plugins() - (pathname, dummy) = os.path.split(inspect.getfile(baseobj)) - self._plugins = { - 'config': config, - 'available': p.get_plugins(pathname, plugin_type), - 'whitelist': whitelist, - 'enabled': [] - } + return p.get_plugins(self._pathname, self._plugin_type, self) + + def refresh_enabled(self): + config = self._data.load_options(self.facility, name='global') + self.enabled = [] + if config: + if 'enabled' in config: + self.enabled = config['enabled'].split(',') def get_plugin_data(self): - return self._plugins + self.available = self.get_plugins() + self.refresh_enabled() + def save_enabled(self, enabled): + if enabled: + self._data.save_options(self.facility, 'global', + {'enabled': ','.join(enabled)}) + else: + self._data.delete_options(self.facility, 'global', + {'enabled': '*'}) + self.debug('Plugin enabled state saved: %s' % enabled) + self.refresh_enabled() -class PluginInstaller(object): - def __init__(self, baseobj): - (pathname, dummy) = os.path.split(inspect.getfile(baseobj)) - self._pathname = pathname - def get_plugins(self): - p = Plugins() - return p.get_plugins(self._pathname, 'Installer') +class PluginInstaller(PluginLoader): + def __init__(self, baseobj, facility): + super(PluginInstaller, self).__init__(baseobj, facility, 'Installer') class PluginObject(Log): - def __init__(self): + def __init__(self, plugins): self.name = None self._config = None self._data = AdminStore() + self._plugins = plugins + self.is_enabled = False + + def on_enable(self): + return + + def on_disable(self): + return + + def save_enabled_state(self): + enabled = [] + self._plugins.refresh_enabled() + enabled.extend(self._plugins.enabled) + if self.is_enabled: + if self.name not in enabled: + enabled.append(self.name) + else: + if self.name in enabled: + enabled.remove(self.name) + self._plugins.save_enabled(enabled) + + def enable(self): + if self.is_enabled: + return + + self.refresh_plugin_config() + self.on_enable() + self.is_enabled = True + self.debug('Plugin enabled: %s' % self.name) + + def disable(self): + if not self.is_enabled: + return + + self.on_disable() + + self.is_enabled = False + self.debug('Plugin disabled: %s' % self.name) def import_config(self, config): self._config = config @@ -121,18 +171,19 @@ class PluginObject(Log): def export_config(self): return self._config - def get_plugin_config(self, facility): - return self._data.load_options(facility, self.name) + def get_plugin_config(self): + return self._data.load_options(self._plugins.facility, self.name) - def refresh_plugin_config(self, facility): - config = self.get_plugin_config(facility) - self.import_config(config) + def refresh_plugin_config(self): + config = self.get_plugin_config() + if config: + self.import_config(config) - def save_plugin_config(self, facility, config=None): + def save_plugin_config(self, config=None): if config is None: config = self.export_config() - self._data.save_options(facility, self.name, config) + self._data.save_options(self._plugins.facility, self.name, config) def get_data(self, idval=None, name=None, value=None): return self._data.get_data(self.name, idval=idval, name=name, @@ -147,8 +198,8 @@ class PluginObject(Log): def del_datum(self, idval): self._data.del_datum(self.name, idval) - def wipe_config_values(self, facility): - self._data.delete_options(facility, self.name, None) + def wipe_config_values(self): + self._data.delete_options(self._plugins.facility, self.name, None) def wipe_data(self): self._data.wipe_data(self.name) |