common: add support for configuration file and reading settings

Author: Omair Majid

client.conf

@@ -0,0 +1,3 @@
+[main]
+server=localhost:1055
+username=

consider/configuration.py

@@ -0,0 +1,36 @@
+
+import designpatterns
+
+class ClientConfiguration(designpatterns.Borg):
+
+    CLIENT_CONFIG_NAME = 'client.conf'
+
+    def __init__(self):
+        if not 'server' in self.__dict__:
+            import ConfigParser
+            config = ConfigParser.ConfigParser()
+            config.read(ClientConfiguration.CLIENT_CONFIG_NAME)
+            self.server = config.get('main', 'server')
+            self.username = config.get('main', 'username')
+
+    def getServer(self):
+        return self.server
+
+    def getUsername(self):
+        return self.username
+
+
+class ServerConfiguration(designpatterns.Borg):
+
+    SERVER_CONFIG_NAME = 'server.conf'
+
+    def __init__(self):
+        if not 'port' in self.__dict__:
+            import ConfigParser
+            config = ConfigParser.ConfigParser()
+            config.read(ServerConfiguration.SERVER_CONFIG_NAME)
+            self.port = config.getint('main', 'port')
+
+    def getPort(self):
+        return self.port
+

consider/server.py

@@ -4,13 +4,13 @@
 from twisted.web import server
 from twisted.python import log
 
-from consider import rpcservice, storage
+from consider import rpcservice, storage, configuration
 
 class MasterService(service.MultiService):
     def __init__(self):
         service.MultiService.__init__(self)
-
-        self.rpcServerPort = 1055
+        serverConfig = configuration.ServerConfiguration()
+        self.rpcServerPort = serverConfig.getPort()
         self.monitorService = MonitorService()
         self.rpcServer = internet.TCPServer(
                             self.rpcServerPort, 

consider/settings.py

@@ -41,9 +41,12 @@ class Settings(designpatterns.Borg):
     def __init__(self):
         # load state when the state of the first borg is initialized
         if 'username' not in self.__dict__:
+            from consider.configuration import ClientConfiguration
+            clientConfiguration = ClientConfiguration()
             self.username = 'test'
             self.password = 'test'
-            self.serverAddress = 'http://localhost:1055'
+            self.serverAddress = 'http://' + clientConfiguration.getServer()
+            print('Connecting to server: ' + self.serverAddress)
             self.observers = []
             self.webPageList = []
 

server.conf

@@ -0,0 +1,2 @@
+[main]
+port=1055