Improve endpoint document

Author: Orisdaddy

Diff for: docs/6-Endpoint-CN.md

@@ -1,26 +1,56 @@
-# 域名
-
-Endpoint 是请求访问的域名
-
-优先级：request > profile > rules
-
-```python
-from aliyunsdkcore.client import AcsClient
-from aliyunsdkecs.request.v20140526.DescribeRegionsRequest import DescribeRegionsRequest
-
-client = AcsClient(
-    'ACCESS_KEY_ID',
-    'ACCESS_KEY_SECRET',
-)
-# 全局生效
-client.add_endpoint("region_id", "product", "your endpoint")
-
-request = DescribeRegionsRequest()
-# 只对当前request生效
-request.endpoint = 'your endpoint'
-# 拼接规则设置网络,参数：share、 inner、 vpc、 public
-request.request_network = 'public'
-response = client.do_action_with_exception(request)
-```
-
-拼接规则方式需要产品端支持并符合规范方可使用。
+# 域名
+
+Endpoint 是请求接口服务的网络域名，如 `ecs.cn-hangzhou.aliyuncs.com`
+
+### Endpoint 寻址
+
+[相关源码](https://github.com/aliyun/aliyun-openapi-python-sdk/blob/master/aliyun-python-sdk-core/aliyunsdkcore/endpoint/default_endpoint_resolver.py)
+
+1. 用户自定义
+
+`用户自定义`是优先级最高的寻址逻辑，可以直接指定 endpoint 的具体内容。
+
+```python
+# 全局生效
+client = AcsClient()
+client.add_endpoint("<region_id>", "<product>", "<endpoint>")
+
+# 只对当前 Request 生效
+request = DescribeRegionsRequest()
+request.set_endpoint("<endpoint>")
+```
+
+2. Endpoint 拼接规则
+
+在请求 vpc 网络时或产品 SDK 具有 Endpoint 数据文件时，当前寻址逻辑才会生效。 Endpoint 数据文件示例 ([Ecs Endpoint Data File](https://github.com/aliyun/aliyun-openapi-python-sdk/blob/master/aliyun-python-sdk-ecs/aliyunsdkecs/endpoint.py))
+
+```python
+# 公网请求
+request.request_network = "public" # 因为 `network` 的默认值为 `public`，所以默认情况下不需要配置 `network`
+
+# 跨域请求
+request.request_network = "share"
+
+# Ipv6 请求
+request.request_network = "ipv6"
+
+# 代理请求
+request.request_network = "proxy"
+
+# 内部请求
+request.request_network = "inner"
+
+# Ipv4/Ipv6 双协议栈
+request.request_network = "dualstack"
+
+# vpc 请求
+request.request_network = "vpc"
+```
+
+3. 根据 Python SDK Core 中的 [endpoints.json](https://github.com/aliyun/aliyun-openapi-python-sdk/blob/master/aliyun-python-sdk-core/aliyunsdkcore/data/endpoints.json) 数据文件进行寻址
+
+内部操作，无需额外配置。
+
+4. 请求 Location 服务接口，从远端获取
+
+需要产品 SDK 具备 `ServiceCode`

Diff for: docs/6-Endpoint-EN.md

@@ -1,26 +1,55 @@
-# Endpoint
-
-The endpoint is the domain you want to access
-
-Priority：request > profile > rules
-
-```python
-from aliyunsdkcore.client import AcsClient
-from aliyunsdkecs.request.v20140526.DescribeRegionsRequest import DescribeRegionsRequest
-
-client = AcsClient(
-    'ACCESS_KEY_ID',
-    'ACCESS_KEY_SECRET',
-)
-# global
-client.add_endpoint("region_id", "product", "your endpoint")
-
-request = DescribeRegionsRequest()
-# Only the current request is valid
-request.endpoint = 'your endpoint'
-# Splicing rules set the network; parameter:share、 inner、 vpc、 public
-request.request_network = 'public'
-response = client.do_action_with_exception(request)
-```
-
-Splicing rules need to be supported by the product side and conform to the specification before they can be used。
+# Endpoint
+
+Endpoint is the domain name of the service API. like `ecs.cn-hangzhou.aliyuncs.com`
+
+### Search Endpoint
+
+[Related source code](https://github.com/aliyun/aliyun-openapi-python-sdk/blob/master/aliyun-python-sdk-core/aliyunsdkcore/endpoint/default_endpoint_resolver.py)
+
+1. User custom defined
+
+`User custom defined` is the highest-priority logic to search endpoint and allows you to specify endpoint specifics directly.
+
+```python
+# Global effect
+client = AcsClient()
+client.add_endpoint("<region_id>", "<product>", "<endpoint>")
+
+
+# Only works for the current request
+request = DescribeRegionsRequest()
+request.set_endpoint("<endpoint>")
+```
+
+2. Endpoint Splicing Rules
+
+`Endpoint Splicing Rules` does not take effect until the vpc network is enabled or the product SDK has an Endpoint data file. Endpoint Data File Example : ([Ecs Endpoint Data File](https://github.com/aliyun/aliyun-openapi-python-sdk/blob/master/aliyun-python-sdk-ecs/aliyunsdkecs/endpoint.py))
+
+```python
+# Public network request(default)
+request.request_network = "public" # Since the default value of `network` is `public`, there is no need to configure `network` by default.
+
+# Share-domain request
+request.request_network = "share"
+
+# Ipv6 network request
+request.request_network = "ipv6"
+
+# Proxy network request
+request.request_network = "proxy"
+
+# Internal network request
+request.request_network = "inner"
+
+# Ipv4/Ipv6 Dual Stack
+request.request_network = "dualstack"
+
+# Vpc network request
+request.request_network = "vpc"
+```
+
+3. Search endpoint from the [endpoints.json](https://github.com/aliyun/aliyun-openapi-python-sdk/blob/master/aliyun-python-sdk-core/aliyunsdkcore/data/endpoints.json) endpoint data file in the Java SDK Core Internal operation, no additional configuration required.
+
+4. Request Location Service API to get `Endpoint` from the remote end.
+
+Requires product SDK with `ServiceCode`.

Diff for: python-sdk-functional-test/new_endpoint_test.py

@@ -20,7 +20,7 @@
 from aliyunsdkcore.client import AcsClient
 from aliyunsdkecs.request.v20140526.DescribeRegionsRequest import DescribeRegionsRequest
 from aliyunsdkram.request.v20150501.ListAccessKeysRequest import ListAccessKeysRequest
-from aliyunsdkros.request.v20150901.DescribeResourcesRequest import DescribeResourcesRequest
+from aliyunsdkcs.request.v20151215.DescribeApiVersionRequest import DescribeApiVersionRequest
 from aliyunsdkcloudapi.request.v20160714.DescribeApisRequest import DescribeApisRequest
 import aliyunsdkcore.acs_exception.error_code as error_code
 
@@ -338,14 +338,8 @@ def test_call_rpc_request_with_client(self):
         response = self.client.do_action_with_exception(request)
 
     def test_call_roa_request_with_client(self):
-        request = DescribeResourcesRequest()
-        request.set_StackId("StackId")
-        request.set_StackName("StackName")
-        try:
-            response = self.client.do_action_with_exception(request)
-            assert False
-        except ServerException as e:
-            self.assertEqual("StackNotFound", e.get_error_code())
+        request = DescribeApiVersionRequest()
+        self.client.do_action_with_exception(request)
 
     def test_location_service_code_not_equals_product_code(self):
         request = DescribeApisRequest()