def load_apps(self, app_lists):
app_lists = [app for app
in itertools.chain.from_iterable(app.split(',')
for app in app_lists)]
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
LOG.info('loading app %s', app_cls_name)
cls = self.load_app(app_cls_name)
if cls is None:
continue
self.applications_cls[app_cls_name] = cls
services = []
for key, context_cls in cls.context_iteritems():
cls = self.contexts_cls.setdefault(key, context_cls)
assert cls == context_cls
if issubclass(context_cls, RyuApp):
services.extend(get_dependent_services(context_cls))
services.extend(get_dependent_services(cls))
if services:
app_lists.extend(services)
def load_apps(self, app_lists):
app_lists = [
app for app in itertools.chain.from_iterable(
app.split(',') for app in app_lists)
]
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
LOG.info('loading app %s', app_cls_name)
cls = self.load_app(app_cls_name)
if cls is None:
continue
self.applications_cls[app_cls_name] = cls
services = []
for key, context_cls in cls.context_iteritems():
v = self.contexts_cls.setdefault(key, context_cls)
assert v == context_cls
if issubclass(context_cls, RyuApp):
services.extend(get_dependent_services(context_cls))
# we can't load an app that will be initiataed for
# contexts.
context_modules = map(lambda x: x.__module__,
self.contexts_cls.values())
for i in get_dependent_services(cls):
if not i in context_modules:
services.append(i)
if services:
app_lists.extend(services)
def load_apps(self, app_lists):
app_lists = [
app for app in itertools.chain.from_iterable(
app.split(',') for app in app_lists)
]
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
LOG.info('loading app %s', app_cls_name)
cls = self.load_app(app_cls_name)
if cls is None:
continue
self.applications_cls[app_cls_name] = cls
services = []
for key, context_cls in cls.context_iteritems():
cls = self.contexts_cls.setdefault(key, context_cls)
assert cls == context_cls
if issubclass(context_cls, RyuApp):
services.extend(get_dependent_services(context_cls))
services.extend(get_dependent_services(cls))
if services:
app_lists.extend(services)
def load_apps(self, app_lists):
app_lists = [app for app
in itertools.chain.from_iterable(app.split(',')
for app in app_lists)]
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
LOG.info('loading app %s', app_cls_name)
cls = self.load_app(app_cls_name)
if cls is None:
continue
self.applications_cls[app_cls_name] = cls
services = []
for key, context_cls in cls.context_iteritems():
v = self.contexts_cls.setdefault(key, context_cls)
assert v == context_cls
if issubclass(context_cls, RyuApp):
services.extend(get_dependent_services(context_cls))
# we can't load an app that will be initiataed for
# contexts.
context_modules = map(lambda x: x.__module__,
self.contexts_cls.values())
for i in get_dependent_services(cls):
if not i in context_modules:
services.append(i)
if services:
app_lists.extend(services)
def load_apps(self, app_lists):
app_lists = [app for app in itertools.chain.from_iterable(app.split(",") for app in app_lists)]
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
context_modules = [x.__module__ for x in self.contexts_cls.values()]
if app_cls_name in context_modules:
continue
LOG.info("loading app %s", app_cls_name)
cls = self.load_app(app_cls_name)
if cls is None:
continue
self.applications_cls[app_cls_name] = cls
services = []
for key, context_cls in cls.context_iteritems():
v = self.contexts_cls.setdefault(key, context_cls)
assert v == context_cls
context_modules.append(context_cls.__module__)
if issubclass(context_cls, RyuApp):
services.extend(get_dependent_services(context_cls))
# we can't load an app that will be initiataed for
# contexts.
for i in get_dependent_services(cls):
if i not in context_modules:
services.append(i)
if services:
app_lists.extend([s for s in set(services) if s not in app_lists])
def load_apps(self, app_lists):
app_lists = [
app for app in itertools.chain.from_iterable(
app.split(',') for app in app_lists)
]
# print('3:app_lists:',app_lists) #('3:app_lists:', ['ryu.controller.ofp_handler'])
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
# print('4:app_cls_name:',app_cls_name) #('4:app_cls_name:', 'ryu.controller.ofp_handler')
context_modules = [
x.__module__ for x in self.contexts_cls.values()
]
# print('5:context_modules:',context_modules) #('5:context_modules:', [])
if app_cls_name in context_modules:
continue
LOG.info('loading app %s', app_cls_name)
cls = self.load_app(app_cls_name)
if cls is None:
continue
self.applications_cls[app_cls_name] = cls
# print('9:app_cls_name,cls',app_cls_name,cls) #('9:app_cls_name,cls', 'ryu.controller.ofp_handler',
# <class 'ryu.controller.ofp_handler.OFPHandler'>)
services = []
# print('10:cls.context_iteritems()',cls.context_iteritems(),services)
#('10:cls.context_iteritems()', <listiterator object at 0x7ff3d4484a50>, [])
for key, context_cls in cls.context_iteritems():
v = self.contexts_cls.setdefault(key, context_cls)
# print('11:v',v)
# print('12:key',key)
# print('13:context_cls',context_cls)
assert v == context_cls
context_modules.append(context_cls.__module__)
if issubclass(context_cls, RyuApp):
#get context_cls dependent server and append services
services.extend(get_dependent_services(context_cls))
# we can't load an app that will be initiataed for
# contexts.
for i in get_dependent_services(cls):
if i not in context_modules:
services.append(i)
# print('14:services:',services) #('14:services:', [])
if services:
app_lists.extend(
[s for s in set(services) if s not in app_lists])
def load_apps(self, app_lists):
# 注意该app_lists是由命令行中指定,只是名字
app_lists = [
app for app in itertools.chain.from_iterable(
app.split(',') for app in app_lists)
]
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
# 用于模块间通信，或者避免重复加载服务APP
context_modules = [
x.__module__ for x in self.contexts_cls.values()
]
if app_cls_name in context_modules:
continue
LOG.info('loading app %s', app_cls_name)
# 加载APP
cls = self.load_app(app_cls_name)
if cls is None:
continue
# 字典保存加载的app,key是app名字，value是对应的对象（没有实例化）
self.applications_cls[app_cls_name] = cls
services = []
# 模块间通信，加载其他模块，当前APP可能需要其他模块参与，继承自RyuApp基类
for key, context_cls in cls.context_iteritems():
# 将其他模块保存在 contexts_cls 字典中
v = self.contexts_cls.setdefault(key, context_cls)
assert v == context_cls
# 将其他服务模块的模块名保存在context_modules
context_modules.append(context_cls.__module__)
# 对其他模块，还需判断是否需要提供服务，是RyuApp继承类就需要。
if issubclass(context_cls, RyuApp):
services.extend(get_dependent_services(context_cls))
# we can't load an app that will be initiataed for
# contexts.
for i in get_dependent_services(cls):
if i not in context_modules:
services.append(i)
# 每个需要的其他服务，都加入app_lists中
if services:
app_lists.extend(
[s for s in set(services) if s not in app_lists])
def load_apps(self, app_lists):
# itertools.chain.from_iterable 为构建迭代器
app_lists = [
app for app in itertools.chain.from_iterable(
app.split(',') for app in app_lists)
]
while len(app_lists) > 0:
app_cls_name = app_lists.pop(0)
# contexts_cls 为contexts_cls字典中的实值列表
context_modules = [
x.__module__ for x in self.contexts_cls.values()
]
# 如果在列表中，则跳出循环
if app_cls_name in context_modules:
continue
LOG.info('loading app %s', app_cls_name)
# 调用load_app 函数
cls = self.load_app(app_cls_name)
if cls is None:
continue
# 填充applications_cls 列表
self.applications_cls[app_cls_name] = cls
services = []
for key, context_cls in cls.context_iteritems():
# 填入contexts_cls 列表中
v = self.contexts_cls.setdefault(key, context_cls)
assert v == context_cls
# 加入context_modules 列表中
context_modules.append(context_cls.__module__)
# 如果其为RyuApp 的子类
if issubclass(context_cls, RyuApp):
services.extend(get_dependent_services(context_cls))
# we can't load an app that will be initiataed for
# contexts.
for i in get_dependent_services(cls):
if i not in context_modules:
services.append(i)
if services:
app_lists.extend(
[s for s in set(services) if s not in app_lists])