From 97ee9e654ac62cb591f29529e39dd9ad61d74c9e Mon Sep 17 00:00:00 2001
From: Narayan Desai <desai@mcs.anl.gov>
Date: Wed, 11 Aug 2004 19:54:35 +0000
Subject: Rename: src/Generator.py -> src/lib/Server/Generator.py

(Logical change 1.33)


git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@169 ce84e21b-d406-0410-9b95-82705330c041
---
 src/lib/Server/Generator.py | 60 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/src/lib/Server/Generator.py b/src/lib/Server/Generator.py
index e69de29bb..eb66404a2 100644
--- a/src/lib/Server/Generator.py
+++ b/src/lib/Server/Generator.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+# $Id$
+
+from Error import GeneratorError
+
+from syslog import syslog, LOG_ERR
+
+class Generator(object):
+    '''This is a class that generators can be subclassed from.
+    __name__, __version__, and __author__ must be set for the module
+    __provides__ is a dictionary mapping listing the entity type and name to a function name
+    __requires__ is a set of external published data needed for operation'''
+    
+    __name__ = None
+    __version__ = None
+    __provides__ = {}
+    __requires__ = []
+    
+    def __init__(self, core, datastore):
+        self.core = core
+        self.data = "%s/%s"%(datastore,self.__name__)
+        self.__setup__()
+
+    def __setup__(self):
+        '''This method must be overloaded during subclassing.
+        All module specific setup, including all publication, occurs here.'''
+
+    def CompleteSetup(self):
+        self.ReadAll()
+        print "%s loaded"%(self.__version__)
+
+    def Cron(self):
+        '''Cron defines periodic tasks to maintain data coherence'''
+        pass
+
+    def Publish(self,key,value):
+        self.core.Publish(self.__name__,key,value)
+
+    def Read(self,key):
+        self.core.ReadValue(key)
+
+    def ReadAll(self):
+        self.external = {}
+        for field in self.__requires__:
+            self.external[field] = self.Read(field)
+
+    def GetMetadata(self,client,field):
+        '''GetMetadata returns current metadata file client. Field can be one of:
+        image, tags, bundles'''
+        pass
+
+    def Notify(self,region):
+        '''Generate change notification for region'''
+        pass
+
+    def GetProbes(self, metadata):
+        return []
+
+    def AcceptProbeData(self, client, probedata):
+        return
-- 
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