| /* |
| * 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.hudi.common.util; |
| |
| import org.apache.hudi.exception.HoodieException; |
| |
| import java.io.IOException; |
| import java.net.ServerSocket; |
| |
| /** |
| * A utility class for network. |
| */ |
| public class NetworkUtils { |
| |
| public static synchronized String getHostname() { |
| ServerSocket s = null; |
| try { |
| s = new ServerSocket(0); |
| return s.getInetAddress().getHostAddress(); |
| } catch (IOException e) { |
| throw new HoodieException("Unable to find server port", e); |
| } finally { |
| if (null != s) { |
| try { |
| s.close(); |
| } catch (IOException e) { |
| throw new HoodieException("Unable to close server port", e); |
| } |
| } |
| } |
| } |
| } |