| /** |
| * Copyright 2016 Yahoo Inc. |
| * |
| * 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 com.yahoo.pulsar.broker; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| |
| import static org.apache.commons.lang3.StringUtils.isBlank; |
| |
| public class ServiceConfigurationUtils { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(ServiceConfigurationUtils.class); |
| |
| public static String getDefaultOrConfiguredAddress(String configuredAddress) { |
| if (isBlank(configuredAddress)) { |
| return unsafeLocalhostResolve(); |
| } |
| return configuredAddress; |
| } |
| |
| public static String unsafeLocalhostResolve() { |
| try { |
| return InetAddress.getLocalHost().getHostName(); |
| } catch (UnknownHostException ex) { |
| LOG.error(ex.getMessage(), ex); |
| throw new IllegalStateException("Failed to resolve localhost name.", ex); |
| } |
| } |
| |
| } |