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Elasticsearch subproject :server
/*
* 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.transport;
import org.elasticsearch.cluster.node.DiscoveryNode;
/**
* A listener interface that allows to react on transport events. All methods may be
* executed on network threads. Consumers must fork in the case of long running or blocking
* operations.
*/
public interface TransportConnectionListener {
/**
* Called once a connection was opened
* @param connection the connection
*/
default void onConnectionOpened(Transport.Connection connection) {}
/**
* Called once a connection ws closed.
* @param connection the closed connection
*/
default void onConnectionClosed(Transport.Connection connection) {}
/**
* Called once a node connection is opened and registered.
*/
default void onNodeConnected(DiscoveryNode node, Transport.Connection connection) {}
/**
* Called once a node connection is closed and unregistered.
*/
default void onNodeDisconnected(DiscoveryNode node, Transport.Connection connection) {}
}