org.elasticsearch.discovery.ClusterStatePublishResponseHandler Maven / Gradle / Ivy

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/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.discovery;

import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.unit.TimeValue;

/**
 * Handles responses obtained when publishing a new cluster state from master to all non master nodes.
 * Allows to await a reply from all non master nodes, up to a timeout
 */
public interface ClusterStatePublishResponseHandler {

    /**
     * Called for each response obtained from non master nodes
     * @param node the node that replied to the publish event
     */
    void onResponse(DiscoveryNode node);

    /**
     * Called for each failure obtained from non master nodes
     * @param node the node that replied to the publish event
     */
    void onFailure(DiscoveryNode node, Throwable t);

    /**
     * Allows to wait for all non master nodes to reply to the publish event up to a timeout
     * @param timeout the timeout
     * @return true if the timeout expired or not, false otherwise
     * @throws InterruptedException
     */
    boolean awaitAllNodes(TimeValue timeout) throws InterruptedException;
}