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Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.transport;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.core.Releasable;
import java.io.Closeable;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
public interface ConnectionManager extends Closeable {
void addListener(TransportConnectionListener listener);
void removeListener(TransportConnectionListener listener);
void openConnection(DiscoveryNode node, ConnectionProfile connectionProfile, ActionListener listener);
void connectToNode(
DiscoveryNode node,
ConnectionProfile connectionProfile,
ConnectionValidator connectionValidator,
ActionListener listener
) throws ConnectTransportException;
Transport.Connection getConnection(DiscoveryNode node);
boolean nodeConnected(DiscoveryNode node);
void disconnectFromNode(DiscoveryNode node);
Set getAllConnectedNodes();
int size();
@Override
void close();
void closeNoBlock();
ConnectionProfile getConnectionProfile();
@FunctionalInterface
interface ConnectionValidator {
void validate(Transport.Connection connection, ConnectionProfile profile, ActionListener listener);
}
final class DelegatingNodeConnectionListener implements TransportConnectionListener {
private final CopyOnWriteArrayList listeners = new CopyOnWriteArrayList<>();
@Override
public void onNodeDisconnected(DiscoveryNode key, Transport.Connection connection) {
for (TransportConnectionListener listener : listeners) {
listener.onNodeDisconnected(key, connection);
}
}
@Override
public void onNodeConnected(DiscoveryNode node, Transport.Connection connection) {
for (TransportConnectionListener listener : listeners) {
listener.onNodeConnected(node, connection);
}
}
@Override
public void onConnectionOpened(Transport.Connection connection) {
for (TransportConnectionListener listener : listeners) {
listener.onConnectionOpened(connection);
}
}
@Override
public void onConnectionClosed(Transport.Connection connection) {
for (TransportConnectionListener listener : listeners) {
listener.onConnectionClosed(connection);
}
}
public void addListener(TransportConnectionListener listener) {
listeners.addIfAbsent(listener);
}
public void removeListener(TransportConnectionListener listener) {
listeners.remove(listener);
}
}
}