package net.floodlightcontroller.counter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.openflow.protocol.OFMessage;
import net.floodlightcontroller.core.IOFSwitch;
import net.floodlightcontroller.core.module.FloodlightModuleContext;
import net.floodlightcontroller.core.module.FloodlightModuleException;
import net.floodlightcontroller.core.module.IFloodlightModule;
import net.floodlightcontroller.core.module.IFloodlightService;
import net.floodlightcontroller.counter.CounterStore.NetworkLayer;
import net.floodlightcontroller.counter.CounterValue.CounterType;
import net.floodlightcontroller.packet.Ethernet;
/**
* An ICounsterStoreService implementation that does nothing.
* This is used mainly for performance testing or if you don't
* want to use the counterstore.
* @author alexreimers
*
*/
public class NullCounterStore implements IFloodlightModule,
ICounterStoreService {
private ICounter emptyCounter;
private List<String> emptyList;
private Map<String, ICounter> emptyMap;
@Override
public void updatePacketInCounters(IOFSwitch sw, OFMessage m, Ethernet eth) {
// no-op
}
@Override
public void updatePktOutFMCounterStore(IOFSwitch sw, OFMessage ofMsg) {
// no-op
}
@Override
public List<String>
getAllCategories(String counterName, NetworkLayer layer) {
return emptyList;
}
@Override
public ICounter createCounter(String key, CounterType type) {
return emptyCounter;
}
@Override
public ICounter getCounter(String key) {
return emptyCounter;
}
@Override
public Map<String, ICounter> getAll() {
return emptyMap;
}
@Override
public Collection<Class<? extends IFloodlightService>> getModuleServices() {
Collection<Class<? extends IFloodlightService>> services =
new ArrayList<Class<? extends IFloodlightService>>(1);
services.add(ICounterStoreService.class);
return services;
}
@Override
public Map<Class<? extends IFloodlightService>, IFloodlightService>
getServiceImpls() {
Map<Class<? extends IFloodlightService>,
IFloodlightService> m =
new HashMap<Class<? extends IFloodlightService>,
IFloodlightService>();
m.put(ICounterStoreService.class, this);
return m;
}
@Override
public Collection<Class<? extends IFloodlightService>>
getModuleDependencies() {
// None, return null
return null;
}
@Override
public void init(FloodlightModuleContext context)
throws FloodlightModuleException {
emptyCounter = new SimpleCounter(new Date(), CounterType.LONG);
emptyList = new ArrayList<String>();
emptyMap = new HashMap<String, ICounter>();
}
@Override
public void startUp(FloodlightModuleContext context) {
// no-op
}
}