Simplify code in storage node app.run method.

Also, make logging done when catching OperationFailure exception consistent
with logging done when catching PrimaryFailure exception.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1687 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/storage/app.py

@@ -144,23 +144,17 @@ class Application(object):
                 # look for the primary master
                 self.connectToPrimary()
             self.operational = False
-            try:
-                while True:
-                    try:
             # check my state
             node = self.nm.getByUUID(self.uuid)
             if node is not None and node.isHidden():
                 self.wait()
+            try:
                 self.verifyData()
                 self.initialize()
                 self.doOperation()
                 raise RuntimeError, 'should not reach here'
-                    except OperationFailure:
-                        logging.error('operation stopped')
-                        # XXX still we can receive answer packet here
-                        # this must be handle in order not to fail
-                        self.operational = False
-
+            except OperationFailure, msg:
+                logging.error('operation stopped: %s', msg)
             except PrimaryFailure, msg:
                 logging.error('primary master is down: %s', msg)
                 self.master_node = None