alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 1 | package org.onlab.onos.net.trivial.packet.impl; |
| 2 | |
alshabib | 030111e | 2014-09-15 15:56:42 -0700 | [diff] [blame] | 3 | import static com.google.common.base.Preconditions.checkNotNull; |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 4 | import static org.slf4j.LoggerFactory.getLogger; |
| 5 | |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 6 | import java.util.Map; |
| 7 | import java.util.TreeMap; |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 8 | |
| 9 | import org.apache.felix.scr.annotations.Activate; |
| 10 | import org.apache.felix.scr.annotations.Component; |
| 11 | import org.apache.felix.scr.annotations.Deactivate; |
| 12 | import org.apache.felix.scr.annotations.Reference; |
| 13 | import org.apache.felix.scr.annotations.ReferenceCardinality; |
| 14 | import org.apache.felix.scr.annotations.Service; |
| 15 | import org.onlab.onos.net.Device; |
| 16 | import org.onlab.onos.net.device.DeviceService; |
| 17 | import org.onlab.onos.net.packet.OutboundPacket; |
| 18 | import org.onlab.onos.net.packet.PacketContext; |
| 19 | import org.onlab.onos.net.packet.PacketProcessor; |
| 20 | import org.onlab.onos.net.packet.PacketProvider; |
| 21 | import org.onlab.onos.net.packet.PacketProviderRegistry; |
| 22 | import org.onlab.onos.net.packet.PacketProviderService; |
| 23 | import org.onlab.onos.net.packet.PacketService; |
| 24 | import org.onlab.onos.net.provider.AbstractProviderRegistry; |
| 25 | import org.onlab.onos.net.provider.AbstractProviderService; |
| 26 | import org.slf4j.Logger; |
| 27 | |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 28 | /** |
| 29 | * Provides a basic implementation of the packet SB & NB APIs. |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 30 | */ |
| 31 | @Component(immediate = true) |
| 32 | @Service |
| 33 | public class SimplePacketManager |
| 34 | extends AbstractProviderRegistry<PacketProvider, PacketProviderService> |
| 35 | implements PacketService, PacketProviderRegistry { |
| 36 | |
| 37 | private final Logger log = getLogger(getClass()); |
| 38 | |
| 39 | @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| 40 | private DeviceService deviceService; |
| 41 | |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 42 | private final Map<Integer, PacketProcessor> processors = new TreeMap<>(); |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 43 | |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 44 | @Activate |
| 45 | public void activate() { |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 46 | log.info("Started"); |
| 47 | } |
| 48 | |
| 49 | @Deactivate |
| 50 | public void deactivate() { |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 51 | log.info("Stopped"); |
| 52 | } |
| 53 | |
| 54 | @Override |
| 55 | public void addProcessor(PacketProcessor processor, int priority) { |
alshabib | 030111e | 2014-09-15 15:56:42 -0700 | [diff] [blame] | 56 | checkNotNull(processor, "Processor cannot be null"); |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 57 | processors.put(priority, processor); |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | @Override |
| 61 | public void removeProcessor(PacketProcessor processor) { |
tom | c370ebd | 2014-09-16 01:25:21 -0700 | [diff] [blame^] | 62 | checkNotNull(processor, "Processor cannot be null"); |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 63 | processors.values().remove(processor); |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public void emit(OutboundPacket packet) { |
tom | c370ebd | 2014-09-16 01:25:21 -0700 | [diff] [blame^] | 68 | checkNotNull(packet, "Packet cannot be null"); |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 69 | final Device device = deviceService.getDevice(packet.sendThrough()); |
| 70 | final PacketProvider packetProvider = getProvider(device.providerId()); |
| 71 | packetProvider.emit(packet); |
| 72 | } |
| 73 | |
| 74 | @Override |
tom | c370ebd | 2014-09-16 01:25:21 -0700 | [diff] [blame^] | 75 | protected PacketProviderService createProviderService(PacketProvider provider) { |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 76 | return new InternalPacketProviderService(provider); |
| 77 | } |
| 78 | |
| 79 | // Personalized link provider service issued to the supplied provider. |
| 80 | private class InternalPacketProviderService |
| 81 | extends AbstractProviderService<PacketProvider> |
| 82 | implements PacketProviderService { |
| 83 | |
| 84 | protected InternalPacketProviderService(PacketProvider provider) { |
| 85 | super(provider); |
| 86 | } |
| 87 | |
| 88 | @Override |
| 89 | public void processPacket(PacketContext context) { |
alshabib | d58d352 | 2014-09-13 17:14:53 -0700 | [diff] [blame] | 90 | for (PacketProcessor processor : processors.values()) { |
alshabib | 7674db4 | 2014-09-12 23:40:46 -0700 | [diff] [blame] | 91 | processor.process(context); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | } |
alshabib | ae85758 | 2014-09-12 23:53:10 -0700 | [diff] [blame] | 96 | } |