| package net.onrc.onos.core.datastore.topology; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TreeSet; |
| |
| import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; |
| |
| import net.onrc.onos.core.datastore.DataStoreClient; |
| import net.onrc.onos.core.datastore.IKVTable.IKVEntry; |
| import net.onrc.onos.core.datastore.topology.KVLink.STATUS; |
| import net.onrc.onos.core.datastore.utils.ByteArrayComparator; |
| import net.onrc.onos.core.datastore.utils.ByteArrayUtil; |
| import net.onrc.onos.core.datastore.utils.KVObject; |
| import net.onrc.onos.core.topology.DeviceEvent; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.esotericsoftware.kryo.Kryo; |
| |
| /** |
| * Device object. |
| * <p/> |
| * TODO switch to ProtoBuf, etc. |
| */ |
| public class KVDevice extends KVObject { |
| private static final Logger log = LoggerFactory.getLogger(KVDevice.class); |
| |
| private static final ThreadLocal<Kryo> DEVICE_KRYO = new ThreadLocal<Kryo>() { |
| @Override |
| protected Kryo initialValue() { |
| Kryo kryo = new Kryo(); |
| kryo.setRegistrationRequired(true); |
| kryo.setReferences(false); |
| kryo.register(byte[].class); |
| kryo.register(byte[][].class); |
| kryo.register(HashMap.class); |
| // TODO check if we should explicitly specify EnumSerializer |
| kryo.register(STATUS.class); |
| return kryo; |
| } |
| }; |
| |
| public static final String GLOBAL_DEVICE_TABLE_NAME = "G:Device"; |
| |
| // FIXME these should be Enum or some number, not String |
| private static final String PROP_MAC = "mac"; |
| private static final String PROP_PORT_IDS = "port-ids"; |
| |
| private final byte[] mac; |
| private TreeSet<byte[]> portIds; |
| private transient boolean isPortIdsModified; |
| |
| // Assume there is only one ip on a device now. |
| private int ip; |
| private long lastSeenTime; |
| |
| // Assuming mac is unique cluster-wide |
| public static byte[] getDeviceID(final byte[] mac) { |
| return DeviceEvent.getDeviceID(mac).array(); |
| } |
| |
| public static byte[] getMacFromKey(final byte[] key) { |
| ByteBuffer keyBuf = ByteBuffer.wrap(key); |
| if (keyBuf.getChar() != 'D') { |
| throw new IllegalArgumentException("Invalid Device key"); |
| } |
| byte[] mac = new byte[keyBuf.remaining()]; |
| keyBuf.get(mac); |
| return mac; |
| } |
| |
| @SuppressFBWarnings(value = "EI_EXPOSE_REP2", |
| justification = "TODO: Store a copy of the object?") |
| public KVDevice(final byte[] mac) { |
| super(DataStoreClient.getClient().getTable(GLOBAL_DEVICE_TABLE_NAME), getDeviceID(mac)); |
| |
| this.mac = mac; |
| this.portIds = new TreeSet<>(ByteArrayComparator.BYTEARRAY_COMPARATOR); |
| this.isPortIdsModified = true; |
| } |
| |
| /** |
| * Get an instance from Key. |
| * |
| * @param key |
| * @return |
| * @note You need to call `read()` to get the DB content. |
| */ |
| public static KVDevice createFromKey(final byte[] key) { |
| return new KVDevice(getMacFromKey(key)); |
| } |
| |
| public static Iterable<KVDevice> getAllDevices() { |
| return new DeviceEnumerator(); |
| } |
| |
| public static class DeviceEnumerator implements Iterable<KVDevice> { |
| |
| @Override |
| public Iterator<KVDevice> iterator() { |
| return new DeviceIterator(); |
| } |
| } |
| |
| public static class DeviceIterator extends AbstractObjectIterator<KVDevice> { |
| |
| public DeviceIterator() { |
| super(DataStoreClient.getClient().getTable(GLOBAL_DEVICE_TABLE_NAME)); |
| } |
| |
| @Override |
| public KVDevice next() { |
| IKVEntry o = enumerator.next(); |
| KVDevice e = KVDevice.createFromKey(o.getKey()); |
| e.deserialize(o.getValue(), o.getVersion()); |
| return e; |
| } |
| } |
| |
| @SuppressFBWarnings(value = "EI_EXPOSE_REP", |
| justification = "TODO: Return a copy of the object?") |
| public byte[] getMac() { |
| // TODO may need to clone() to be sure this object will be immutable. |
| return mac; |
| } |
| |
| public byte[] getId() { |
| return getKey(); |
| } |
| |
| public void addPortId(final byte[] portId) { |
| // TODO: Should we copy portId, or reference is OK. |
| isPortIdsModified |= portIds.add(portId); |
| } |
| |
| public void removePortId(final byte[] portId) { |
| isPortIdsModified |= portIds.remove(portId); |
| } |
| |
| public void emptyPortIds() { |
| portIds.clear(); |
| this.isPortIdsModified = true; |
| } |
| |
| public void addAllToPortIds(final Collection<byte[]> portIds) { |
| // TODO: Should we copy portId, or reference is OK. |
| isPortIdsModified |= this.portIds.addAll(portIds); |
| } |
| |
| /** |
| * @return Unmodifiable Set view of all the PortIds; |
| */ |
| public Set<byte[]> getAllPortIds() { |
| return Collections.unmodifiableSet(portIds); |
| } |
| |
| @Override |
| public byte[] serialize() { |
| Map<Object, Object> map = getPropertyMap(); |
| |
| map.put(PROP_MAC, mac); |
| if (isPortIdsModified) { |
| byte[][] portIdArray = new byte[portIds.size()][]; |
| map.put(PROP_PORT_IDS, portIds.toArray(portIdArray)); |
| isPortIdsModified = false; |
| } |
| |
| return serializePropertyMap(DEVICE_KRYO.get(), map); |
| } |
| |
| @Override |
| protected boolean deserialize(final byte[] bytes) { |
| boolean success = deserializePropertyMap(DEVICE_KRYO.get(), bytes); |
| if (!success) { |
| log.error("Deserializing Link: " + this + " failed."); |
| return false; |
| } |
| Map<Object, Object> map = this.getPropertyMap(); |
| |
| if (this.portIds == null) { |
| this.portIds = new TreeSet<>( |
| ByteArrayComparator.BYTEARRAY_COMPARATOR); |
| } |
| byte[][] portIdArray = (byte[][]) map.get(PROP_PORT_IDS); |
| if (portIdArray != null) { |
| this.portIds.clear(); |
| this.portIds.addAll(Arrays.asList(portIdArray)); |
| isPortIdsModified = false; |
| } else { |
| // trigger write on next serialize |
| isPortIdsModified = true; |
| } |
| |
| return success; |
| } |
| |
| @Override |
| public String toString() { |
| // TODO output all properties? |
| return "[" + this.getClass().getSimpleName() |
| + " " + ByteArrayUtil.toHexStringBuffer(mac, ":") + "]"; |
| } |
| |
| public int getIp() { |
| return ip; |
| } |
| |
| public void setIp(int ip) { |
| this.ip = ip; |
| } |
| |
| public long getLastSeenTime() { |
| return lastSeenTime; |
| } |
| |
| public void setLastSeenTime(long lastSeenTime) { |
| this.lastSeenTime = lastSeenTime; |
| } |
| } |