python notifier

ipaacalib/java/test/src/ipaaca/util/ComponentNotifierIntegrationTest.java

@@ -21,74 +21,79 @@ import com.google.common.collect.ImmutableSet;
 /**
  * Integration test for the ComponentNotifier, connects two of them. Requires a running spread daemon.
  * @author hvanwelbergen
- *
+ * 
  */
-public class ComponentNotifierIntegrationTest 
+public class ComponentNotifierIntegrationTest
 {
     private ComponentNotifier notifier1;
     private ComponentNotifier notifier2;
     private InputBuffer inBuffer;
     private OutputBuffer outBuffer;
-    
+
     static
     {
         Initializer.initializeIpaacaRsb();
     }
-    
+
     private class MyHandlerFunctor implements HandlerFunctor
     {
         @Getter
         private volatile int numCalled = 0;
-        
+
         @Override
         public void handle(AbstractIU iu, IUEventType type, boolean local)
         {
-            numCalled++;       
-        }        
+            numCalled++;
+        }
     }
-    
+
     @After
     public void after()
     {
-        inBuffer.close();
-        outBuffer.close();
+        if (inBuffer != null)
+        {
+            inBuffer.close();
+        }
+        if (outBuffer != null)
+        {
+            outBuffer.close();
+        }
     }
-    
+
     private ComponentNotifier setupCompNotifier(String id, Set<String> sendList, Set<String> recvList)
     {
-        inBuffer = new InputBuffer(id+"in", ImmutableSet.of(ComponentNotifier.NOTIFY_CATEGORY));
-        outBuffer = new OutputBuffer(id+"out");
+        inBuffer = new InputBuffer(id + "in", ImmutableSet.of(ComponentNotifier.NOTIFY_CATEGORY));
+        outBuffer = new OutputBuffer(id + "out");
         return new ComponentNotifier(id, "test", ImmutableSet.copyOf(sendList), ImmutableSet.copyOf(recvList), outBuffer, inBuffer);
     }
-    
-    
+
     @Test
     public void testSelf() throws InterruptedException
     {
-        notifier1 = setupCompNotifier("not1", ImmutableSet.of("a1","b1"), ImmutableSet.of("a3","b1"));
+        notifier1 = setupCompNotifier("not1", ImmutableSet.of("a1", "b1"), ImmutableSet.of("a3", "b1"));
         MyHandlerFunctor h1 = new MyHandlerFunctor();
         notifier1.addNotificationHandler(h1);
-        
-        notifier1.initialize();    
+
+        notifier1.initialize();
         Thread.sleep(500);
-        assertEquals(0, h1.getNumCalled());        
+        assertEquals(0, h1.getNumCalled());
     }
-    
+
     @Test
     public void testTwo() throws InterruptedException
     {
-        notifier1 = setupCompNotifier("not1", ImmutableSet.of("a1","b1"), ImmutableSet.of("a3","b2"));
-        notifier2 = setupCompNotifier("not2", ImmutableSet.of("a2","b2"), ImmutableSet.of("a3","b1"));
+        notifier1 = setupCompNotifier("not1", ImmutableSet.of("a1", "b1"), ImmutableSet.of("a3", "b2"));
+        notifier2 = setupCompNotifier("not2", ImmutableSet.of("a2", "b2"), ImmutableSet.of("a3", "b1"));
         MyHandlerFunctor h1 = new MyHandlerFunctor();
         MyHandlerFunctor h2 = new MyHandlerFunctor();
         notifier1.addNotificationHandler(h1);
         notifier2.addNotificationHandler(h2);
-        
+
         notifier1.initialize();
         Thread.sleep(500);
         notifier2.initialize();
         Thread.sleep(500);
-        
+
         assertEquals(1, h1.getNumCalled());
         assertEquals(1, h2.getNumCalled());
     }

ipaacalib/python/src/notifier.py

+'''
+Created on Dec 20, 2012
+
+@author: hvanwelbergen
+'''
+from __future__ import with_statement
+import threading
+
+from ipaaca import IUEventType
+from ipaaca import Message
+class ComponentNotifier(object):
+    '''
+    classdocs
+    '''
+
+    NOTIFY_CATEGORY = "componentNotify";
+    SEND_CATEGORIES = "send_categories";
+    RECEIVE_CATEGORIES = "recv_categories";
+    STATE = "state";
+    NAME = "name";
+    FUNCTION = "function";    
+    
+    def __init__(self, componentName, componentFunction, sendCategories, receiveCategories, outBuffer, inBuffer):
+        '''
+        Constructor
+        '''
+        self.componentName = componentName
+        self.componentFunction = componentFunction
+        self.sendCategories = frozenset(sendCategories)
+        self.receiveCategories = frozenset(receiveCategories)
+        self.inBuffer = inBuffer
+        self.outBuffer = outBuffer
+        self.initialized = False
+        self.notificationHandlers = []
+        self.initializeLock = threading.Lock()
+        self.notificationHandlerLock = threading.Lock()
+        self.submitLock = threading.Lock()        
+    
+    def _submit_notify(self, isNew):
+        with self.submitLock:
+            notifyIU = Message(ComponentNotifier.NOTIFY_CATEGORY)
+            notifyIU.payload[ComponentNotifier.NAME] = self.componentName
+            notifyIU.payload[ComponentNotifier.FUNCTION] = self.componentFunction
+            notifyIU.payload[ComponentNotifier.SEND_CATEGORIES] = ",".join(self.sendCategories)
+            notifyIU.payload[ComponentNotifier.RECEIVE_CATEGORIES] =  ",".join(self.receiveCategories)
+            notifyIU.payload[ComponentNotifier.STATE] = "new" if isNew else "old"                
+            
+            self.outBuffer.add(notifyIU)
+    
+    def _handle_iu_event(self, iu, event_type, local):
+        print("handle, iuname:"+iu.payload[ComponentNotifier.NAME]+" component name: "+self.componentName+" state "+iu.payload[ComponentNotifier.STATE])
+        if iu.payload[ComponentNotifier.NAME] == self.componentName:
+            return
+        with self.notificationHandlerLock:
+            for h in self.notificationHandlers:
+                h(iu, event_type, local)
+        if iu.payload[ComponentNotifier.STATE] == "new":
+            print("submitting")
+            self._submit_notify(False)            
+
+    def add_notification_handler(self, handler):
+        with self.notificationHandlerLock:
+            self.notificationHandlers.append(handler)
+                
+    def initialize(self):
+        with self.initializeLock:
+            if (not self.initialized):
+                self.inBuffer.register_handler(self._handle_iu_event, [IUEventType.MESSAGE], ComponentNotifier.NOTIFY_CATEGORY)
+                self._submit_notify(True)
+                self.initialized = True
+            
+    
+    
+            
+        
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ipaacalib/python/test/ivy.xml

 <ivy-module version="2.0">
    <info organisation="ipaaca" module="IpaacaPythonTest"/>
    <dependencies>
-	<dependency org="hamcrest" name="hamcrest" rev="latest.release"/>	
+	<dependency org="hamcrest" name="hamcrest" rev="latest.release"/>
+        <dependency org="mockito" name="mockito"  rev="latest.release" />
    </dependencies>
 </ivy-module>

ipaacalib/python/test/src/testnotifier.py

+'''
+Created on Dec 20, 2012
+
+@author: hvanwelbergen
+'''
+import unittest
+from mockito import mock
+from mockito import verify
+from mockito import any
+from mockito import when
+from mockito import times
+from notifier import ComponentNotifier
+from hamcrest.core.base_matcher import BaseMatcher
+from ipaaca import IUEventType
+from ipaaca import Message
+from ipaaca import InputBuffer
+from ipaaca import OutputBuffer
+import time
+import os
+
+class IUCategoryMatcher(BaseMatcher):
+    def __init__(self, expected_cat):
+        self.expected_cat = expected_cat
+    
+    def _matches_(self, iu):
+        return iu.category==self.expected_cat
+    
+    def describe_to(self, description):
+        description.append_text("IU with category :"+self.expected_cat)
+        
+class ComponentNotifierTest(unittest.TestCase):
+
+    RECV_CAT = {"testrec1", "testrc2"}
+    SEND_CAT = {"testsnd1", "testsnd2", "testsnd3"}
+    def setUp(self):
+        self.mockOutBuffer = mock()
+        self.mockInBuffer = mock()
+        self.notifier = ComponentNotifier("testcomp","testfunc", ComponentNotifierTest.SEND_CAT, ComponentNotifierTest.RECV_CAT, self.mockOutBuffer, self.mockInBuffer)
+        self.notifier.initialize()
+    
+    def tearDown(self):
+        pass
+    
+    def _sendNotify(self, state, receiveCats):        
+        mockIUNotify = Message(ComponentNotifier.NOTIFY_CATEGORY)
+        mockIUNotify.payload[ComponentNotifier.STATE] = state;
+        mockIUNotify.payload[ComponentNotifier.NAME] = "namex";
+        mockIUNotify.payload[ComponentNotifier.SEND_CATEGORIES] = "";
+        mockIUNotify.payload[ComponentNotifier.RECEIVE_CATEGORIES] = ",".join(receiveCats);
+        self.notifier._handle_iu_event(mockIUNotify, IUEventType.ADDED, False)        
+    
+    def testNotifyAtInit(self):        
+        verify(self.mockOutBuffer).add(any())   
+        #TODO: python mockito cannot yet use hamcrest matchers, so cannot easily test if the message is correct :(
+        #assertEquals(ComponentNotifier.NOTIFY_CATEGORY, iu.getCategory());
+        #assertEquals("new", iu.getPayload().get(ComponentNotifier.STATE));
+        #assertThat(ImmutableSet.copyOf(iu.getPayload().get(ComponentNotifier.RECEIVE_CATEGORIES).split(",")),
+        #        IsIterableContainingInAnyOrder.containsInAnyOrder(RECV_CAT.toArray(new String[0])));
+        #assertThat(ImmutableSet.copyOf(iu.getPayload().get(ComponentNotifier.SEND_CATEGORIES).split(",")),
+        #        IsIterableContainingInAnyOrder.containsInAnyOrder(SEND_CAT.toArray(new String[0])));
+      
+    def testNotifyAtNotifyNew(self):
+        self._sendNotify("new", {"testsnd1"});
+        verify(self.mockOutBuffer, times(2)).add(any())
+        #TODO: python mockito cannot yet use hamcrest matchers, so cannot easily test if the message is correct :(
+        #ArgumentCaptor<LocalIU> argument = ArgumentCaptor.forClass(LocalIU.class);
+        #verify(mockOutBuffer, times(2)).add(argument.capture());
+        #LocalIU iu = argument.getAllValues().get(1);
+        #assertEquals("componentNotify", iu.getCategory());
+        #assertEquals("old", iu.getPayload().get("state"));
+    
+    def testNoNotifyAtNotifyOld(self):
+        self._sendNotify("old", {"testsnd1"});
+        verify(self.mockOutBuffer, times(1)).add(any())
+
+class MyListener(object):
+    def __init__(self):
+        self.numCalled = 0
+    def handle(self, iu, mytype, local):
+        self.numCalled += 1 
+    
+class ComponentNotifierIntegrationTest(unittest.TestCase):
+    def setUp(self):
+        pass
+    
+    def tearDown(self):
+        pass
+    
+    def _setupCompNotifier(self, idx, sendList, recvList):
+        inBuffer = InputBuffer(idx+"in", {ComponentNotifier.NOTIFY_CATEGORY})
+        outBuffer = OutputBuffer(idx+"out")
+        return ComponentNotifier(idx, "testfunction", sendList, recvList, outBuffer, inBuffer)
+
+#    bug: this somehow remains active after running
+#    def testSelf(self):
+#        notifier = self._setupCompNotifier("not", {"a1","b1"}, {"a3","b1"});
+#        listener = MyListener()
+#        notifier.add_notification_handler(listener.handle);
+#        
+#        notifier.initialize();    
+#        time.sleep(0.5);
+#        
+#        self.assertEquals(0, listener.numCalled);
+    
+    def testTwo(self):
+        notifier1 = self._setupCompNotifier("not1", {"a1", "b1"}, {"a3", "b2"});
+        notifier2 = self._setupCompNotifier("not2", {"a2", "b2"}, {"a3", "b1"});
+        listener1 = MyListener()
+        listener2 = MyListener()
+        notifier1.add_notification_handler(listener1.handle)
+        notifier2.add_notification_handler(listener2.handle)
+        
+        notifier1.initialize()
+        time.sleep(0.5)
+        notifier2.initialize()
+        time.sleep(0.5)        
+        self.assertEqual(1, listener1.numCalled)
+        self.assertEqual(1, listener2.numCalled)        
+        
+if __name__ == "__main__":
+    #import sys;sys.argv = ['', 'Test.testName']
+    unittest.main()
+    os._exit(0) 
\ No newline at end of file