com.liferay.portal.kernel.cluster.ClusterRequest.java Source code

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Here is the source code for com.liferay.portal.kernel.cluster.ClusterRequest.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.cluster;

import com.liferay.petra.string.StringBundler;
import com.liferay.portal.kernel.security.SecureRandomUtil;

import java.io.Serializable;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.UUID;

/**
 * @author Tina Tian
 */
public class ClusterRequest implements Serializable {

    public static ClusterRequest createMulticastRequest(Serializable payload) {
        return createMulticastRequest(payload, false);
    }

    public static ClusterRequest createMulticastRequest(Serializable payload, boolean skipLocal) {

        return new ClusterRequest(payload, skipLocal, true);
    }

    public static ClusterRequest createUnicastRequest(Serializable payload, String... targetClusterNodeIds) {

        if ((targetClusterNodeIds == null) || (targetClusterNodeIds.length == 0)) {

            throw new NullPointerException("Target cluster node IDs is null");
        }

        return new ClusterRequest(payload, false, false, targetClusterNodeIds);
    }

    public Serializable getPayload() {
        return _payload;
    }

    public Set<String> getTargetClusterNodeIds() {
        return Collections.unmodifiableSet(_targetClusterNodeIds);
    }

    public String getUuid() {
        return _uuid;
    }

    public boolean isFireAndForget() {
        return _fireAndForget;
    }

    public boolean isMulticast() {
        return _multicast;
    }

    public boolean isSkipLocal() {
        return _skipLocal;
    }

    public void setFireAndForget(boolean fireAndForget) {
        _fireAndForget = fireAndForget;
    }

    @Override
    public String toString() {
        StringBundler sb = new StringBundler(11);

        sb.append("{multicast=");
        sb.append(_multicast);
        sb.append(", payload=");
        sb.append(_payload);
        sb.append(", skipLocal=");
        sb.append(_skipLocal);

        if (!_multicast) {
            sb.append(", _targetClusterNodeIds=");
            sb.append(_targetClusterNodeIds);
        }

        sb.append(", uuid=");
        sb.append(_uuid);
        sb.append("}");

        return sb.toString();
    }

    private ClusterRequest(Serializable payload, boolean skipLocal, boolean multicast,
            String... targetClusterNodeIds) {

        if (payload == null) {
            throw new NullPointerException("Payload is null");
        }

        _payload = payload;
        _skipLocal = skipLocal;
        _multicast = multicast;

        _uuid = _generateUUID();

        for (String targetClusterNodeId : targetClusterNodeIds) {
            _targetClusterNodeIds.add(targetClusterNodeId);
        }
    }

    private String _generateUUID() {
        UUID uuid = new UUID(SecureRandomUtil.nextLong(), SecureRandomUtil.nextLong());

        return uuid.toString();
    }

    private boolean _fireAndForget;
    private final boolean _multicast;
    private final Serializable _payload;
    private final boolean _skipLocal;
    private final Set<String> _targetClusterNodeIds = new HashSet<>();
    private final String _uuid;

}