| package net.onrc.onos.api.flowmanager; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.util.Set; |
| |
| import com.google.common.collect.ImmutableSet; |
| |
| /** |
| * The event class which notifies the set of the flow state transitions. |
| */ |
| public class FlowStatesChangedEvent { |
| private final long time; |
| private final Set<FlowStateChange> changes; |
| |
| /** |
| * Creates the {@link FlowStatesChangedEvent} instance. |
| * |
| * @param time the time at which the event was created in milliseconds since start of epoch |
| * @param changes the set of {@link FlowStateChange} objects |
| */ |
| public FlowStatesChangedEvent(long time, Set<FlowStateChange> changes) { |
| this.time = time; |
| this.changes = ImmutableSet.copyOf(checkNotNull(changes)); |
| } |
| |
| /** |
| * Gets the time at which the event was created. |
| * |
| * @return the time at which the event was created in milliseconds since start of epoch |
| */ |
| public long getTime() { |
| return time; |
| } |
| |
| /** |
| * Gets the set of state changes happened at once. |
| * |
| * @return the set of {@link FlowStateChange} objects |
| */ |
| public Set<FlowStateChange> getStateChanges() { |
| return changes; |
| } |
| } |