| package net.onrc.onos.core.newintent; |
| |
| import com.google.common.base.Objects; |
| import net.onrc.onos.api.intent.Intent; |
| import net.onrc.onos.api.intent.IntentId; |
| import net.onrc.onos.core.matchaction.match.Match; |
| import net.onrc.onos.core.util.Pair; |
| import net.onrc.onos.core.util.SwitchPort; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| /** |
| * This class represents point-to-point connectivity. |
| */ |
| public class PointToPointIntent extends Intent { |
| private final SwitchPort ingressPort; |
| private final SwitchPort egressPort; |
| private final Match match; |
| private final long idleTimeout; |
| private final TimeUnit unit; |
| |
| /** |
| * Constructs an intent representing ingress port to egress port |
| * connectivity with a given match condition. |
| * |
| * @param id ID of this Intent object. |
| * @param ingressPort the ingress port where a path is originated. |
| * @param egressPort the egress port where a path is terminated. |
| * @param match the match condition of a path established by this intent. |
| */ |
| public PointToPointIntent(IntentId id, |
| SwitchPort ingressPort, SwitchPort egressPort, |
| Match match) { |
| this(id, ingressPort, egressPort, match, 0, TimeUnit.SECONDS); |
| } |
| |
| /** |
| * Constructs an intent representing ingress port to egress port |
| * connectivity with a given match condition |
| * and idle timeout. |
| * |
| * @param id ID of this Intent object. |
| * @param ingressPort the ingress port where a path is originated. |
| * @param egressPort the egress port where a path is terminated. |
| * @param match the match condition of a path established by this intent. |
| * @param idleTimeout the maximum time to be idle. |
| * @param unit the unit of the idleTimeout argument. |
| */ |
| public PointToPointIntent(IntentId id, |
| SwitchPort ingressPort, SwitchPort egressPort, |
| Match match, long idleTimeout, TimeUnit unit) { |
| super(id); |
| |
| checkArgument(idleTimeout >= 0, "idleTimeout should not be negative"); |
| |
| this.ingressPort = checkNotNull(ingressPort); |
| this.egressPort = checkNotNull(egressPort); |
| this.match = checkNotNull(match); |
| this.idleTimeout = idleTimeout; |
| this.unit = checkNotNull(unit); |
| } |
| |
| /** |
| * Returns the ingress port. |
| * |
| * @return the ingress port. |
| */ |
| public SwitchPort getIngressPort() { |
| return ingressPort; |
| } |
| |
| /** |
| * Returns the egress port. |
| * |
| * @return the egress port. |
| */ |
| public SwitchPort getEgressPort() { |
| return egressPort; |
| } |
| |
| /** |
| * Returns the match condition. |
| * |
| * @return the match condition. |
| */ |
| public Match getMatch() { |
| return match; |
| } |
| |
| /** |
| * Returns the idle timeout. |
| * |
| * @return the idle timeout. |
| */ |
| public Pair<Long, TimeUnit> getIdleTimeout() { |
| return new Pair<>(idleTimeout, unit); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hashCode(getId(), ingressPort, egressPort, match, idleTimeout, unit); |
| } |
| |
| /** |
| * Compares the specified object with this intent for equality. |
| * |
| * <p> |
| * Note: Comparison of idleTimeout value is done in micro-second precision. |
| * Then the value less than a micro second is truncated. In addition, the comparison |
| * is done between long values. It causes overflow if the idleTimeout is large. |
| * </p> |
| * |
| * @param obj the object to be compared with this intent for equality. |
| * @return true if the specified object is equal to this intent. |
| */ |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } |
| |
| if (!(obj instanceof PointToPointIntent)) { |
| return false; |
| } |
| |
| PointToPointIntent that = (PointToPointIntent) obj; |
| long thisIdleTimeoutInMicro = this.unit.toMicros(this.idleTimeout); |
| long thatIdleTimeoutInMicro = that.unit.toMicros(that.idleTimeout); |
| |
| return Objects.equal(this.getId(), that.getId()) |
| && Objects.equal(this.ingressPort, that.ingressPort) |
| && Objects.equal(this.egressPort, that.egressPort) |
| && Objects.equal(this.match, that.match) |
| && Objects.equal(thisIdleTimeoutInMicro, thatIdleTimeoutInMicro); |
| } |
| |
| @Override |
| public String toString() { |
| return Objects.toStringHelper(this) |
| .add("id", getId()) |
| .add("ingressPort", ingressPort) |
| .add("egressPort", egressPort) |
| .add("match", match) |
| .add("idleTimeout", idleTimeout) |
| .add("unit", unit) |
| .toString(); |
| } |
| } |