| package org.onlab.onos.event; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| |
| /** |
| * Base event implementation. |
| */ |
| public class AbstractEvent<T extends Enum, S extends Object> implements Event<T, S> { |
| |
| private final long time; |
| private final T type; |
| private S subject; |
| |
| /** |
| * Creates an event of a given type and for the specified subject and the |
| * current time. |
| * |
| * @param type event type |
| * @param subject event subject |
| */ |
| protected AbstractEvent(T type, S subject) { |
| this(type, subject, System.currentTimeMillis()); |
| } |
| |
| /** |
| * Creates an event of a given type and for the specified subject and time. |
| * |
| * @param type event type |
| * @param subject event subject |
| * @param time occurrence time |
| */ |
| protected AbstractEvent(T type, S subject, long time) { |
| this.type = type; |
| this.subject = subject; |
| this.time = time; |
| } |
| |
| @Override |
| public long time() { |
| return time; |
| } |
| |
| @Override |
| public T type() { |
| return type; |
| } |
| |
| @Override |
| public S subject() { |
| return subject; |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this).add("time", time).add("type", type()) |
| .add("subject", subject()).toString(); |
| } |
| |
| } |