First hack at a version

[invirt/packages/python-routefs.git] / routefs / examples / pyhesiodfs.py

diff --git a/routefs/examples/pyhesiodfs.py b/routefs/examples/pyhesiodfs.py
new file mode 100755 (executable)
index 0000000..2831a14
--- /dev/null
+++ b/routefs/examples/pyhesiodfs.py
@@ -0,0 +1,35 @@
+#!/sw/bin/python2.5
+
+import hesiod
+import routefs
+from routes import Mapper
+
+class PyHesiodFS(routefs.RouteFS):
+    def __init__(self, *args, **kwargs):
+        super(PyHesiodFS, self).__init__(*args, **kwargs)
+        
+        self.cache = {}
+    
+    def make_map(self):
+        m = Mapper()
+        m.connect('', controller='getList')
+        m.connect(':action', controller='getLocker')
+        return m
+    
+    def getLocker(self, action):
+        if action in self.cache:
+            return routefs.Symlink(self.cache[action])
+        
+        try:
+            filsys = hesiod.FilsysLookup(action).filsys[0]
+            if filsys['type'] == 'AFS':
+                self.cache[action] = filsys['location']
+                return routefs.Symlink(self.cache[action])
+        except (TypeError, KeyError, IndexError):
+            return
+    
+    def getList(self, action):
+        return routefs.Directory(self.cache.keys())
+
+if __name__ == '__main__':
+    routefs.main(PyHesiodFS)