| /* |
| * 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.camel.quarkus.test; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.ServerSocket; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.function.Function; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Finds currently available server ports. |
| */ |
| public final class AvailablePortFinder { |
| private static final Logger LOGGER = LoggerFactory.getLogger(AvailablePortFinder.class); |
| |
| /** |
| * Creates a new instance. |
| */ |
| private AvailablePortFinder() { |
| // Do nothing |
| } |
| |
| /** |
| * Gets the next available port. |
| * |
| * @throws IllegalStateException if there are no ports available |
| * @return the available port |
| */ |
| public static int getNextAvailable() { |
| try (ServerSocket ss = new ServerSocket()) { |
| ss.setReuseAddress(true); |
| ss.bind(new InetSocketAddress((InetAddress) null, 0), 1); |
| |
| int port = ss.getLocalPort(); |
| |
| LOGGER.info("getNextAvailable() -> {}", port); |
| |
| return port; |
| } catch (IOException e) { |
| throw new IllegalStateException("Cannot find free port", e); |
| } |
| } |
| |
| /** |
| * Reserve a list of random and not in use network ports and place them in Map. |
| */ |
| public static Map<String, Integer> reserveNetworkPorts(String... names) { |
| return reserveNetworkPorts(Function.identity(), names); |
| } |
| |
| /** |
| * Reserve a list of random and not in use network ports and place them in Map. |
| */ |
| public static <T> Map<String, T> reserveNetworkPorts(Function<Integer, T> converter, String... names) { |
| Map<String, T> reservedPorts = new HashMap<>(); |
| |
| for (String name : names) { |
| reservedPorts.put(name, converter.apply(getNextAvailable())); |
| } |
| |
| return reservedPorts; |
| } |
| } |