com.qwazr.cluster.manager.ClusterNode Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of qwazr-cluster Show documentation

Clustering module for QWAZR

There is a newer version: 1.5.2

/**
 * Copyright 2014-2016 Emmanuel Keller / QWAZR
 * 
 * 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 com.qwazr.cluster.manager;

import java.util.*;

final class ClusterNode {

	final ClusterNodeAddress address;
	final UUID nodeLiveId;

	final Set groups;
	final Set services;

	private volatile Long expirationTimeMs;

	volatile List groupsCache;
	volatile List servicesCache;

	private volatile boolean hasFullInfo;

	ClusterNode(final ClusterNodeAddress address, final UUID nodeLiveId, final Long expirationTimeMs) {
		this.nodeLiveId = nodeLiveId;
		this.address = address;
		this.expirationTimeMs = expirationTimeMs;
		this.groups = new HashSet<>();
		this.services = new HashSet<>();
		groupsCache = null;
		servicesCache = null;
		hasFullInfo = false;
	}

	final void setExpirationTime(final Long expirationTimeMs) {
		this.expirationTimeMs = expirationTimeMs;
	}

	final Long getExpirationTimeMs() {
		return expirationTimeMs;
	}

	final boolean isExpired(final long currentTimeMs) {
		final Long ns = expirationTimeMs;
		return ns == null ? false : currentTimeMs > expirationTimeMs;
	}

	final void registerGroups(final Collection newGroups) {
		if (newGroups == null)
			return;
		groups.clear();
		groups.addAll(newGroups);
		groupsCache = new ArrayList<>(groups);
	}

	final void registerServices(final Collection newServices) {
		if (newServices == null)
			return;
		services.clear();
		services.addAll(newServices);
		servicesCache = new ArrayList<>(services);
	}

	final boolean hasFullInfo() {
		return hasFullInfo;
	}

	final void setFullInfo() {
		this.hasFullInfo = true;
	}

	final Collection getGroups() {
		return groupsCache;
	}

	final Collection getServices() {
		return servicesCache;
	}

}