Made Redis backend and plugin more robust.

- Redis arguments read either from the backend or the plugin
configuration as a fallback in case of partial conf

- send_message now falls back on the default Redis connection
configuration if *args and **kwargs are missing

platypush/backend/redis.py

@@ -3,6 +3,7 @@ import json
 from redis import Redis
 
 from platypush.backend import Backend
+from platypush.context import get_plugin
 from platypush.message import Message
 
 
@@ -31,6 +32,15 @@ class RedisBackend(Backend):
 
         self.queue = queue
         self.redis_args = redis_args
+
+        if not redis_args:
+            try:
+                redis_plugin = get_plugin('redis')
+                if redis_plugin and redis_plugin.kwargs:
+                    self.redis_args = redis_plugin.kwargs
+            except:
+                pass
+
         self.redis = Redis(**self.redis_args)
 
 

platypush/plugins/redis.py

@@ -1,5 +1,6 @@
 from redis import Redis
 
+from platypush.context import get_backend
 from platypush.plugins import Plugin, action
 
 
@@ -17,6 +18,14 @@ class RedisPlugin(Plugin):
         self.args = args
         self.kwargs = kwargs
 
+        if not kwargs:
+            try:
+                redis_backend = get_backend('redis')
+                if redis_backend and redis_backend.redis_args:
+                    self.kwargs = redis_backend.redis_args
+            except:
+                pass
+
     def _get_redis(self):
         return Redis(*self.args, **self.kwargs)
 
@@ -38,8 +47,12 @@ class RedisPlugin(Plugin):
         :type kwargs: dict
         """
 
-        redis = Redis(*args, **kwargs)
-        redis.rpush(queue, str(msg))
+        if args or kwargs:
+            redis = Redis(*args, **kwargs)
+        else:
+            redis = self._get_redis()
+
+        return redis.rpush(queue, str(msg))
 
     @action
     def mget(self, keys, *args):