very first version of an event generator object. This can be called in fixed...

very first version of an event generator object. This can be called in fixed intervals and generate some events

dream/simulation/EventGenerator.py

+# ===========================================================================
+# Copyright 2013 University of Limerick
+#
+# This file is part of DREAM.
+#
+# DREAM 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.
+#
+# DREAM 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 DREAM.  If not, see <http://www.gnu.org/licenses/>.
+# ===========================================================================
+'''
+Created on 4 Dec 2013
+
+@author: George
+'''
+
+'''
+models a generator that runs a method at specified intervals
+'''
+
+from SimPy.Simulation import now, hold, Process
+from ObjectInterruption import ObjectInterruption
+
+class EventGenerator(ObjectInterruption):
+    def __init__(self, start=None, stop=None, interval=None, duration=None, method=None):
+        ObjectInterruption.__init__(self)
+        self.start=start
+        self.stop=stop
+        self.interval=interval
+        self.duration=duration
+        self.method=method
+        
+    def run(self):
+        yield hold,self,self.start
+        while 1:
+            if self.stop:
+                if now()>self.stop:
+                    break
+            self.method()
+            yield hold,self,self.interval
+        
+    
+    
+    
\ No newline at end of file

dream/simulation/TestGeneratorMainScript.py

+# ===========================================================================
+# Copyright 2013 University of Limerick
+#
+# This file is part of DREAM.
+#
+# DREAM 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.
+#
+# DREAM 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 DREAM.  If not, see <http://www.gnu.org/licenses/>.
+# ===========================================================================
+'''
+Created on 4 Dec 2013
+
+@author: George
+'''
+'''
+test script to test the generator
+'''
+
+from SimPy.Simulation import now, activate,simulate
+from EventGenerator import EventGenerator
+
+def myMethod():
+    print "I was invoked at", now()
+
+EG=EventGenerator(start=60, interval=60, method=myMethod)
+activate(EG, EG.run())
+simulate(until=480)    #run the simulation
+
+
+
+
+
+
+
+