1 files changed, 71 insertions, 0 deletions
diff --git a/lib/taurus/core/tauruslistener.py b/lib/taurus/core/tauruslistener.py
new file mode 100644
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+++ b/lib/taurus/core/tauruslistener.py
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+#!/usr/bin/env python
+
+#############################################################################
+##
+## This file is part of Taurus
+## 
+## http://taurus-scada.org
+##
+## Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
+## 
+## Taurus is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+## 
+## Taurus is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+## 
+## You should have received a copy of the GNU Lesser General Public License
+## along with Taurus.  If not, see <http://www.gnu.org/licenses/>.
+##
+#############################################################################
+
+"""This module contains the taurus base listeners classes"""
+
+__all__ = ["TaurusListener", "TaurusExceptionListener"]
+
+__docformat__ = "restructuredtext"
+
+from .util.log import Logger
+
+class TaurusListener(Logger):
+    """ TaurusListener Interface"""
+    
+    def __init__(self, name, parent=None):
+        self.call__init__(Logger, name, parent)
+    
+    def eventReceived(self, src, type, evt_value):
+        """ Method to implement the event notification"""
+        pass
+
+    def attributeList(self):
+        """ Method to return the attributes of the widget"""
+        return []
+
+
+class TaurusExceptionListener(object):
+    """Class for handling ConnectionFailed, DevFailed and TaurusException exceptions."""
+
+    def connectionFailed(self, ex):
+        self._printException(ex)
+
+    def devFailed(self, exception):
+        self._printException(self)
+
+    def exceptionReceived(self, exception):
+        import PyTango
+        if isinstance(exception, PyTango.ConnectionFailed):
+            self.connectionFailed(exception)
+
+        elif isinstance(exception, PyTango.DevFailed):
+            self.devFailed(exception)
+
+        else:
+            self._printException(exception)
+
+    def _printException(self, exception):
+        print self.__class__.__name__, "received", exception.__class__.__name__, str(exception)
+