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Endpoint that allows exposing TCP API
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/*
* Copyright © 2015 The Gravitee team (http://gravitee.io)
*
* Licensed 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 io.gravitee.plugin.endpoint.tcp.proxy.client;
import io.gravitee.apim.common.mapper.SslOptionsMapper;
import io.gravitee.apim.common.mapper.TcpClientOptionsMapper;
import io.gravitee.apim.common.mapper.TcpProxyOptionsMapper;
import io.gravitee.apim.common.mapper.TcpTargetMapper;
import io.gravitee.gateway.reactive.api.context.ExecutionContext;
import io.gravitee.node.api.configuration.Configuration;
import io.gravitee.node.vertx.client.tcp.VertxTcpClientFactory;
import io.gravitee.plugin.endpoint.tcp.proxy.configuration.TcpProxyEndpointConnectorConfiguration;
import io.gravitee.plugin.endpoint.tcp.proxy.configuration.TcpProxyEndpointConnectorSharedConfiguration;
import io.vertx.rxjava3.core.Vertx;
import io.vertx.rxjava3.core.net.NetClient;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* @author Guillaume LAMIRAND (guillaume.lamirand at graviteesource.com)
* @author GraviteeSource Team
*/
public class TcpClientFactory {
private NetClient tcpClient;
private final AtomicBoolean tcpClientCreated = new AtomicBoolean(false);
public NetClient getOrBuildTcpClient(
final ExecutionContext ctx,
final TcpProxyEndpointConnectorConfiguration configuration,
final TcpProxyEndpointConnectorSharedConfiguration sharedConfiguration
) {
if (tcpClient == null) {
synchronized (this) {
// Double-checked locking.
if (tcpClientCreated.compareAndSet(false, true)) {
tcpClient = buildTcpClient(ctx, configuration, sharedConfiguration).build().createTcpClient();
}
}
}
return tcpClient;
}
protected VertxTcpClientFactory.VertxTcpClientFactoryBuilder buildTcpClient(
final ExecutionContext ctx,
final TcpProxyEndpointConnectorConfiguration configuration,
final TcpProxyEndpointConnectorSharedConfiguration sharedConfiguration
) {
return VertxTcpClientFactory
.builder()
.vertx(ctx.getComponent(Vertx.class))
.tcpTarget(TcpTargetMapper.INSTANCE.map(configuration.getTcpTarget()))
.sslOptions(SslOptionsMapper.INSTANCE.map(sharedConfiguration.getSslOptions()))
.proxyOptions(TcpProxyOptionsMapper.INSTANCE.map(sharedConfiguration.getProxyOptions()))
.tcpOptions(TcpClientOptionsMapper.INSTANCE.map(sharedConfiguration.getTcpClientOptions()))
.nodeConfiguration(ctx.getComponent(Configuration.class));
}
@SuppressWarnings("ReactiveStreamsUnusedPublisher")
// Use NOOP Subscriber on websocket close so return completable could be ignored
public void close() {
if (tcpClient != null) {
tcpClient.close();
tcpClient = null;
}
}
}