Wait for entity if it doesn't exist yet

[osm/N2VC.git] / juju / client / connection.py

diff --git a/juju/client/connection.py b/juju/client/connection.py
index 3dcfabf..cdd93d9 100644 (file)
--- a/juju/client/connection.py
+++ b/juju/client/connection.py
@@ -1,4 +1,3 @@
-import asyncio
 import io
 import json
 import logging
@@ -12,6 +11,8 @@ import websockets
 
 import yaml
 
+from juju.errors import JujuAPIError
+
 log = logging.getLogger("websocket")
 
 
@@ -42,6 +43,12 @@ class Connection:
         self.ws = None
         self.facades = {}
 
+    @property
+    def is_open(self):
+        if self.ws:
+            return self.ws.open
+        return False
+
     def _get_ssl(self, cert):
         return ssl.create_default_context(
             purpose=ssl.Purpose.CLIENT_AUTH, cadata=cert)
@@ -69,13 +76,14 @@ class Connection:
         if'params' not in msg:
             msg['params'] = {}
         if "version" not in msg:
-            msg['version'] = self.facades[msg['Type']]
+            msg['version'] = self.facades[msg['type']]
         outgoing = json.dumps(msg, indent=2, cls=encoder)
         await self.ws.send(outgoing)
         result = await self.recv()
-        log.debug("send %s got %s", msg, result)
+        #log.debug("Send: %s", outgoing)
+        #log.debug("Recv: %s", result)
         if result and 'error' in result:
-            raise RuntimeError(result)
+            raise JujuAPIError(result)
         return result
 
     async def clone(self):
@@ -91,14 +99,35 @@ class Connection:
             self.cacert,
         )
 
+    async def controller(self):
+        """Return a Connection to the controller at self.endpoint
+
+        """
+        return await Connection.connect(
+            self.endpoint,
+            None,
+            self.username,
+            self.password,
+            self.cacert,
+        )
+
     @classmethod
     async def connect(cls, endpoint, uuid, username, password, cacert=None):
-        url = "wss://{}/model/{}/api".format(endpoint, uuid)
+        """Connect to the websocket.
+
+        If uuid is None, the connection will be to the controller. Otherwise it
+        will be to the model.
+
+        """
+        if uuid:
+            url = "wss://{}/model/{}/api".format(endpoint, uuid)
+        else:
+            url = "wss://{}/api".format(endpoint)
         client = cls(endpoint, uuid, username, password, cacert)
         await client.open(url, cacert)
         server_info = await client.login(username, password)
         client.build_facades(server_info['facades'])
-        log.info("Driver connected to juju %s", endpoint)
+        log.info("Driver connected to juju %s", url)
 
         return client
 
@@ -113,9 +142,9 @@ class Connection:
         endpoint = controller['api-endpoints'][0]
         cacert = controller.get('ca-cert')
         accounts = jujudata.accounts()[controller_name]
-        username = accounts['current-account']
-        password = accounts['accounts'][username]['password']
-        models = jujudata.models()[controller_name]['accounts'][username]
+        username = accounts['user']
+        password = accounts['password']
+        models = jujudata.models()[controller_name]
         model_name = models['current-model']
         model_uuid = models['models'][model_name]['uuid']
 
@@ -136,9 +165,9 @@ class Connection:
         endpoint = controller['api-endpoints'][0]
         cacert = controller.get('ca-cert')
         accounts = jujudata.accounts()[controller_name]
-        username = accounts['current-account']
-        password = accounts['accounts'][username]['password']
-        models = jujudata.models()[controller_name]['accounts'][username]
+        username = accounts['user']
+        password = accounts['password']
+        models = jujudata.models()[controller_name]
         model_uuid = models['models'][model_name]['uuid']
 
         return await cls.connect(