| /* |
| * 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.bookkeeper.clients.utils; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| import com.google.common.collect.Lists; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.UnknownHostException; |
| import java.util.List; |
| import org.apache.bookkeeper.stream.proto.common.Endpoint; |
| import org.apache.commons.lang.StringUtils; |
| |
| /** |
| * Network related utils. |
| */ |
| public class NetUtils { |
| |
| /** |
| * Get the inet socket address for the provided {@code endpoint}. |
| * |
| * @param endpoint network endpoint |
| * @return inet socket address for the network endpoint |
| */ |
| public static InetSocketAddress of(Endpoint endpoint) { |
| return new InetSocketAddress(endpoint.getHostname(), endpoint.getPort()); |
| } |
| |
| public static String getLocalHostName(boolean useHostname) { |
| String hostname; |
| try { |
| if (useHostname) { |
| hostname = InetAddress.getLocalHost().getHostName(); |
| } else { |
| hostname = InetAddress.getLocalHost().getHostAddress(); |
| } |
| } catch (UnknownHostException uhe) { |
| hostname = "Unknown-Host-Name"; |
| } |
| return hostname; |
| } |
| |
| public static Endpoint getLocalEndpoint(int port, boolean useHostname) |
| throws UnknownHostException { |
| String hostname; |
| if (useHostname) { |
| hostname = InetAddress.getLocalHost().getHostName(); |
| } else { |
| hostname = InetAddress.getLocalHost().getHostAddress(); |
| } |
| return createEndpoint(hostname, port); |
| } |
| |
| /** |
| * Get the list of endpoints from an endpoint string. |
| * |
| * @param endpointStr an endpoint string. |
| * @return list of endpoints. |
| */ |
| public static List<Endpoint> parseEndpoints(String endpointStr) { |
| String[] endpointParts = StringUtils.split(endpointStr, ','); |
| checkArgument(endpointParts.length > 0, |
| "Invalid endpoint strings %s", endpointStr); |
| List<Endpoint> endpoints = Lists.newArrayListWithExpectedSize(endpointParts.length); |
| for (String endpointPart : endpointParts) { |
| endpoints.add(parseEndpoint(endpointPart)); |
| } |
| return endpoints; |
| } |
| |
| /** |
| * Parse an endpoint from an endpoint string. |
| * |
| * @param endpointStr an endpoint string. |
| * @return endpoint. |
| */ |
| public static Endpoint parseEndpoint(String endpointStr) { |
| String[] endpointParts = StringUtils.split(endpointStr, ':'); |
| checkArgument(2 == endpointParts.length, |
| "Invalid endpoint string %s - It should be 'host:port'.", endpointStr); |
| String host = endpointParts[0]; |
| int port; |
| try { |
| port = Integer.parseInt(endpointParts[1]); |
| } catch (NumberFormatException nfe) { |
| throw new IllegalArgumentException("Invalid port found in the endpoint string " + endpointStr, nfe); |
| } |
| return createEndpoint(host, port); |
| } |
| |
| /** |
| * Create an endpoint from {@code hostname} and {@code port}. |
| * |
| * @param hostname hostname of the endpoint |
| * @param port port of the endpoint |
| * @return an endpoint created from {@code hostname} and {@code port}. |
| */ |
| public static Endpoint createEndpoint(String hostname, int port) { |
| return Endpoint.newBuilder() |
| .setHostname(hostname) |
| .setPort(port) |
| .build(); |
| } |
| |
| /** |
| * Convert an endpoint to string. |
| * |
| * @param ep endpoint |
| * @return endpoint string representation |
| */ |
| public static String endpointToString(Endpoint ep) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(ep.getHostname()).append(":").append(ep.getPort()); |
| return sb.toString(); |
| } |
| |
| } |