Controller implements IFloodlightProviderService, 
            IStorageSourceListener { @Override public void addOFSwitchListener(IOFSwitchListener listener) { this.switchListeners.add(listener); }  void setStorageSourceService(IStorageSourceService storageSource); void setCounterStore(ICounterStoreService counterStore); void setPktInProcessingService(IPktInProcessingTimeService pits); void setRestApiService(IRestApiService restApi); void setThreadPoolService(IThreadPoolService tp); @Override Role getRole(); @Override void setRole(Role role); @Override synchronized void addOFMessageListener(OFType type, 
                                                  IOFMessageListener listener); @Override synchronized void removeOFMessageListener(OFType type,
                                                     IOFMessageListener listener); void removeOFMessageListeners(OFType type); @Override Map<Long, IOFSwitch> getSwitches(); @Override void addOFSwitchListener(IOFSwitchListener listener); @Override void removeOFSwitchListener(IOFSwitchListener listener); @Override Map<OFType, List<IOFMessageListener>> getListeners(); @Override @LogMessageDocs({ @LogMessageDoc(message="Failed to inject OFMessage {message} onto " + "a null switch", explanation="Failed to process a message because the switch " + " is no longer connected."), @LogMessageDoc(level="ERROR", message="Error reinjecting OFMessage on switch {switch}", explanation="An I/O error occured while attempting to " + "process an OpenFlow message", recommendation=LogMessageDoc.CHECK_SWITCH) }) boolean injectOfMessage(IOFSwitch sw, OFMessage msg,
                                   FloodlightContext bc); @Override @LogMessageDoc(message="Calling System.exit", explanation="The controller is terminating") synchronized void terminate(); @Override boolean injectOfMessage(IOFSwitch sw, OFMessage msg); @Override void handleOutgoingMessage(IOFSwitch sw, OFMessage m,
                                      FloodlightContext bc); @Override BasicFactory getOFMessageFactory(); @Override String getControllerId(); @LogMessageDocs({ @LogMessageDoc(message="Listening for switch connections on {address}", explanation="The controller is ready and listening for new" + " switch connections"), @LogMessageDoc(message="Storage exception in controller " + "updates loop; terminating process", explanation=ERROR_DATABASE, recommendation=LogMessageDoc.CHECK_CONTROLLER), @LogMessageDoc(level="ERROR", message="Exception in controller updates loop", explanation="Failed to dispatch controller event", recommendation=LogMessageDoc.GENERIC_ACTION) }) void run(); void setConfigParams(Map<String, String> configParams); void init(Map<String, String> configParams); @LogMessageDoc(message="Waiting for storage source", explanation="The system database is not yet ready", recommendation="If this message persists, this indicates " + "that the system database has failed to start. " + LogMessageDoc.CHECK_CONTROLLER) void startupComponents(); @Override void addInfoProvider(String type, IInfoProvider provider); @Override void removeInfoProvider(String type, IInfoProvider provider); Map<String, Object> getControllerInfo(String type); @Override void addHAListener(IHAListener listener); @Override void removeHAListener(IHAListener listener); @Override Map<String, String> getControllerNodeIPs(); @Override void rowsModified(String tableName, Set<Object> rowKeys); @Override void rowsDeleted(String tableName, Set<Object> rowKeys); @Override long getSystemStartTime(); @Override void setAlwaysClearFlowsOnSwAdd(boolean value); boolean getAlwaysClearFlowsOnSwAdd();  }
@Test public void testUpdateQueue() throws Exception { class DummySwitchListener implements IOFSwitchListener { public int nAdded; public int nRemoved; public int nPortChanged; public DummySwitchListener() { nAdded = 0; nRemoved = 0; nPortChanged = 0; } public synchronized void addedSwitch(IOFSwitch sw) { nAdded++; notifyAll(); } public synchronized void removedSwitch(IOFSwitch sw) { nRemoved++; notifyAll(); } public String getName() { return "dummy"; } @Override public void switchPortChanged(Long switchId) { nPortChanged++; notifyAll(); } } DummySwitchListener switchListener = new DummySwitchListener(); IOFSwitch sw = createMock(IOFSwitch.class); ControllerRunThread t = new ControllerRunThread(); t.start(); controller.addOFSwitchListener(switchListener); synchronized(switchListener) { controller.updates.put(controller.new SwitchUpdate(sw, Controller.SwitchUpdateType.ADDED)); switchListener.wait(500); assertTrue("IOFSwitchListener.addedSwitch() was not called", switchListener.nAdded == 1); controller.updates.put(controller.new SwitchUpdate(sw, Controller.SwitchUpdateType.REMOVED)); switchListener.wait(500); assertTrue("IOFSwitchListener.removedSwitch() was not called", switchListener.nRemoved == 1); controller.updates.put(controller.new SwitchUpdate(sw, Controller.SwitchUpdateType.PORTCHANGED)); switchListener.wait(500); assertTrue("IOFSwitchListener.switchPortChanged() was not called", switchListener.nPortChanged == 1); } }