io.atomix.cluster.ClusterMembershipEvent Maven / Gradle / Ivy
/*
* Copyright 2014-present Open Networking Foundation
* Copyright © 2020 camunda services GmbH ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.atomix.cluster;
import com.google.common.base.MoreObjects;
import io.atomix.utils.event.AbstractEvent;
import java.util.Objects;
/** Describes cluster-related event. */
public class ClusterMembershipEvent extends AbstractEvent {
/**
* Creates an event of a given type and for the specified instance and the current time.
*
* @param type cluster event type
* @param instance cluster device subject
*/
public ClusterMembershipEvent(final Type type, final Member instance) {
super(type, instance);
}
/**
* Creates an event of a given type and for the specified device and time.
*
* @param type device event type
* @param instance event device subject
* @param time occurrence time
*/
public ClusterMembershipEvent(final Type type, final Member instance, final long time) {
super(type, instance, time);
}
@Override
public int hashCode() {
return Objects.hash(type(), subject(), time());
}
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof ClusterMembershipEvent) {
final ClusterMembershipEvent other = (ClusterMembershipEvent) obj;
return Objects.equals(type(), other.type())
&& Objects.equals(subject(), other.subject())
&& Objects.equals(time(), other.time());
}
return false;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass())
.add("type", type())
.add("subject", subject())
.add("time", time())
.toString();
}
/** Type of cluster-related events. */
public enum Type {
/** Indicates that a new member has been added. */
MEMBER_ADDED,
/** Indicates that a member's metadata has changed. */
METADATA_CHANGED,
/** Indicates that a member's reachability has changed. */
REACHABILITY_CHANGED,
/** Indicates that a member has been removed. */
MEMBER_REMOVED,
}
}