modules/core/src/main/java/org/apache/ignite/configuration/CommunicationFailureContext.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.apache.ignite.configuration;

import java.util.List;
import java.util.Map;
import org.apache.ignite.cluster.ClusterNode;
import org.apache.ignite.spi.communication.CommunicationSpi;

/**
 * Communication Failure Context.
 */
public interface CommunicationFailureContext {
    /**
     * @return Current topology snapshot.
     */
    public List<ClusterNode> topologySnapshot();

    /**
     * @param node1 First node.
     * @param node2 Second node.
     * @return {@code True} if {@link CommunicationSpi} is able to establish connection from first node to second node.
     */
    public boolean connectionAvailable(ClusterNode node1, ClusterNode node2);

    /**
     * @return Currently started caches.
     */
    public Map<String, CacheConfiguration<?, ?>> startedCaches();

    /**
     * @param cacheName Cache name.
     * @return Cache partitions affinity assignment.
     */
    public List<List<ClusterNode>> cacheAffinity(String cacheName);

    /**
     * @param cacheName Cache name.
     * @return Cache partitions owners.
     */
    public List<List<ClusterNode>> cachePartitionOwners(String cacheName);

    /**
     * @param node Node to kill.
     */
    public void killNode(ClusterNode node);
}