add ReactivePacketProcessor and SimplePacketManager

+package org.onlab.onos.net.trivial.packet.impl;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+import org.onlab.onos.net.packet.PacketContext;
+import org.onlab.onos.net.packet.PacketProcessor;
+import org.slf4j.Logger;
+
+public class ReactivePacketProcessor implements PacketProcessor {
+
+    private final Logger log = getLogger(getClass());
+
+    @Override
+    public void process(PacketContext context) {
+        log.info("Packet reveived {}", context.inPacket());
+    }
+
+}

+package org.onlab.onos.net.trivial.packet.impl;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
+import java.util.ArrayList;
+
+import org.apache.felix.scr.annotations.Activate;
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Reference;
+import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.apache.felix.scr.annotations.Service;
+import org.onlab.onos.net.Device;
+import org.onlab.onos.net.device.DeviceService;
+import org.onlab.onos.net.packet.OutboundPacket;
+import org.onlab.onos.net.packet.PacketContext;
+import org.onlab.onos.net.packet.PacketProcessor;
+import org.onlab.onos.net.packet.PacketProvider;
+import org.onlab.onos.net.packet.PacketProviderRegistry;
+import org.onlab.onos.net.packet.PacketProviderService;
+import org.onlab.onos.net.packet.PacketService;
+import org.onlab.onos.net.provider.AbstractProviderRegistry;
+import org.onlab.onos.net.provider.AbstractProviderService;
+import org.slf4j.Logger;
+
+
+/**
+ * Provides a basic implementation of the packet SB & NB APIs.
+ *
+ */
+@Component(immediate = true)
+@Service
+public class SimplePacketManager
+extends AbstractProviderRegistry<PacketProvider, PacketProviderService>
+implements PacketService, PacketProviderRegistry {
+
+    private final Logger log = getLogger(getClass());
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    private DeviceService deviceService;
+
+    private final ArrayList<PacketProcessor> processors = new ArrayList<>();
+
+    private final PacketProcessor reactiveProcessor = new ReactivePacketProcessor();
+
+    @Activate
+    public void activate() {
+        addProcessor(reactiveProcessor, PacketProcessor.ADVISOR_MAX + 1);
+        log.info("Started");
+    }
+
+    @Deactivate
+    public void deactivate() {
+        removeProcessor(reactiveProcessor);
+        log.info("Stopped");
+    }
+
+    @Override
+    public void addProcessor(PacketProcessor processor, int priority) {
+        processors.add(priority, processor);
+    }
+
+    @Override
+    public void removeProcessor(PacketProcessor processor) {
+        processors.remove(processor);
+    }
+
+    @Override
+    public void emit(OutboundPacket packet) {
+        final Device device = deviceService.getDevice(packet.sendThrough());
+        final PacketProvider packetProvider = getProvider(device.providerId());
+        packetProvider.emit(packet);
+    }
+
+    @Override
+    protected PacketProviderService createProviderService(
+            PacketProvider provider) {
+        return new InternalPacketProviderService(provider);
+    }
+
+    // Personalized link provider service issued to the supplied provider.
+    private class InternalPacketProviderService
+    extends AbstractProviderService<PacketProvider>
+    implements PacketProviderService {
+
+        protected InternalPacketProviderService(PacketProvider provider) {
+            super(provider);
+        }
+
+        @Override
+        public void processPacket(PacketContext context) {
+            for (PacketProcessor processor : processors) {
+                processor.process(context);
+            }
+        }
+
+    }
+}
\ No newline at end of file

@@ -102,7 +102,7 @@ public class LinkDiscovery implements TimerTask {
         this.sw = sw;
         this.ofFactory = sw.factory();
         this.ctrl = ctrl;
-        this.probeRate = 1000;
+        this.probeRate = 3000;
         this.linkProvider = providerService;
         this.slowPorts = Collections.synchronizedSet(new HashSet<Integer>());
         this.fastPorts = Collections.synchronizedSet(new HashSet<Integer>());
@@ -129,7 +129,7 @@ public class LinkDiscovery implements TimerTask {
                 addPort(port);
             }
         }
-        timeout = Timer.getTimer().newTimeout(this, this.probeRate,
+        timeout = Timer.getTimer().newTimeout(this, 0,
                 TimeUnit.MILLISECONDS);
         this.log.debug("Started discovery manager for switch {}",
                 sw.getId());