def __scanPlugins(self):
""" 扫描插件目录 """
plugin_logger.info("Initialization Plugins Start, loadPlugins path: {0}".format(self.plugin_path))
if os.path.exists(self.plugin_path):
for package in os.listdir(self.plugin_path):
_plugin_path = os.path.join(self.plugin_path, package)
if os.path.isdir(_plugin_path):
if os.path.isfile(os.path.join(_plugin_path, "__init__.py")):
plugin_logger.info("find plugin package: {0}".format(package))
self.__runPlugins(package)
else:
plugin_logger.warning("Plugins directory not in here!")
def __runPlugins(self, package):
""" 动态加载插件模块,遵循插件格式的才能被启用并运行,否则删除加载 """
#: 动态加载模块(plugins.package): 可以查询自定义的信息, 并通过getPluginClass获取插件的类定义
plugin = __import__("{0}.{1}".format("plugins", package), fromlist=["plugins", ])
#: 检测插件信息
if plugin.__name__ and plugin.__version__ and plugin.__description__ and plugin.__author__:
#: 获取插件信息
pluginInfo = self.__getPluginInfo(package, plugin)
try:
#: 获取插件主类并实例化
p = plugin.getPluginClass()
i = p()
except Exception, e:
plugin_logger.exception(e, exc_info=True)
return
if plugin.__state__ != "enabled":
self.plugins.append(pluginInfo)
return
plugin_logger.info("runPlugin: package is {0}.{1}, class instance is {2}".format("plugins", package, i))
#: 更新插件信息
pluginInfo.update(plugin_instance=i)
#: 运行插件主类的run方法
if hasattr(i, "run"):
i.run()
#: 注册模板扩展点
if hasattr(i, "register_tep"):
tep = i.register_tep()
plugin_logger.info("The plugin {0} wants to register the following template extension points: {1}".format(package, tep))
if isinstance(tep, dict):
pluginInfo.update(plugin_tep=tep)
plugin_logger.info("Register TEP Success")
else:
plugin_logger.error("Register TEP Failed, not a dict")
#: 注册上下文扩展点
if hasattr(i, "register_cep"):
cep = i.register_cep()
plugin_logger.info("The plugin {0} wants to register the following context extension points: {1}".format(package, cep))
if isinstance(cep, dict):
pluginInfo.update(plugin_cep=cep)
plugin_logger.info("Register CEP Success")
else:
plugin_logger.error("Register CEP Failed, not a dict")
#: 注册蓝图扩展点
if hasattr(i, "register_bep"):
bep = i.register_bep()
plugin_logger.info("The plugin {0} wants to register the following blueprint extension points: {1}".format(package, bep))
if isinstance(bep, dict):
pluginInfo.update(plugin_bep=bep)
plugin_logger.info("Register BEP Success")
else:
plugin_logger.error("Register BEP Failed, not a dict")
#: 加入全局插件中
if hasattr(i, "run") or hasattr(i, "register_tep") or hasattr(i, "register_cep") or hasattr(i, "register_bep"):
self.plugins.append(pluginInfo)
else:
plugin_logger.error("The current class {0} does not have the `run` or `register_tep` or `register_cep` or `register_bep` method".format(i))
