Add SGenshi plugin

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@3506 ce84e21b-d406-0410-9b95-82705330c041

2 files changed, 37 insertions, 1 deletions

diff --git a/src/lib/Server/Plugins/SGenshi.py b/src/lib/Server/Plugins/SGenshi.py
new file mode 100644
index 000000000..9c196190d
--- /dev/null
+++ b/src/lib/Server/Plugins/SGenshi.py
@@ -0,0 +1,36 @@
+'''This module implements a templating generator based on Genshi'''
+__revision__ = '$Revision$'
+
+import genshi.template
+import Bcfg2.Server.Plugin
+import lxml.etree, logging
+
+logger = logging.getLogger('Bcfg2.Plugins.SGenshi')
+
+class TemplateFile(Bcfg2.Server.Plugin.FileBacked):
+    loader = genshi.template.TemplateLoader(auto_reload=True,
+                                            max_cache_size=64)
+    def HandleEvent(self, _=None):
+        self.template = self.loader.load(self.name,
+                                         cls=genshi.template.MarkupTemplate)
+        
+    def GetValue(self, metadata):
+        stream = self.template.generate(metadata=metadata)
+        data = stream.render('xml')
+        return lxml.etree.XML(data)
+
+class SGenshi(Bcfg2.Server.Plugin.Plugin,
+              Bcfg2.Server.Plugin.XMLDirectoryBacked):
+    __child__ = TemplateFile
+    __name__ = 'SGenshi'
+    __version__ = '$Id$'
+
+    def __init__(self, core, datastore):
+        Bcfg2.Server.Plugin.Plugin.__init__(self, core, datastore)
+        Bcfg2.Server.Plugin.XMLDirectoryBacked.__init__(self,
+                                                        self.data,
+                                                        self.core.fam)
+        
+    def BuildStructures(self, metadata):
+        return [entry.GetValue(metadata) for entry in self.entries]
+            
diff --git a/src/lib/Server/Plugins/__init__.py b/src/lib/Server/Plugins/__init__.py
index 484162451..bd75f48ed 100644
--- a/src/lib/Server/Plugins/__init__.py
+++ b/src/lib/Server/Plugins/__init__.py
@@ -3,4 +3,4 @@ __revision__ = '$Revision$'
 
 all = ['Account', 'Base', 'Bundler', 'Cfg', 'Hostbase', 'Metadata',
        'Pkgmgr', 'Rules', 'SSHbase', 'Svcmgr', 'TCheetah',
-       'TGenshi', 'Vhost']
+       'SGenshi', 'TGenshi', 'Vhost']