/* * Copyright 2013-2019 the original author or authors. * * 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 * * https://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.springframework.cloud.consul.discovery; import java.net.Inet6Address; import java.net.InetAddress; import java.net.UnknownHostException; import com.ecwid.consul.v1.health.model.HealthService; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.util.StringUtils; /** * @author Spencer Gibb * @author Semenkov Alexey */ public final class ConsulServerUtils { private static final Log log = LogFactory.getLog(ConsulServerUtils.class); private ConsulServerUtils() { throw new IllegalStateException("Can't instantiate a utility class"); } public static String findHost(HealthService healthService) { HealthService.Service service = healthService.getService(); HealthService.Node node = healthService.getNode(); if (StringUtils.hasText(service.getAddress())) { return fixIPv6Address(service.getAddress()); } else if (StringUtils.hasText(node.getAddress())) { return fixIPv6Address(node.getAddress()); } return node.getNode(); } public static String fixIPv6Address(String address) { try { InetAddress inetAdr = InetAddress.getByName(address); if (inetAdr instanceof Inet6Address) { return "[" + inetAdr.getHostName() + "]"; } return address; } catch (UnknownHostException e) { log.debug("Not InetAddress: " + address + " , resolved as is."); return address; } } }