| /* |
| * 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.commons.net.examples.unix; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| |
| import org.apache.commons.net.daytime.DaytimeTCPClient; |
| import org.apache.commons.net.daytime.DaytimeUDPClient; |
| |
| /*** |
| * This is an example program demonstrating how to use the DaytimeTCP |
| * and DaytimeUDP classes. |
| * This program connects to the default daytime service port of a |
| * specified server, retrieves the daytime, and prints it to standard output. |
| * The default is to use the TCP port. Use the -udp flag to use the UDP |
| * port. |
| * <p> |
| * Usage: daytime [-udp] <hostname> |
| ***/ |
| public final class daytime |
| { |
| |
| public static final void daytimeTCP(String host) throws IOException |
| { |
| DaytimeTCPClient client = new DaytimeTCPClient(); |
| |
| // We want to timeout if a response takes longer than 60 seconds |
| client.setDefaultTimeout(60000); |
| client.connect(host); |
| System.out.println(client.getTime().trim()); |
| client.disconnect(); |
| } |
| |
| public static final void daytimeUDP(String host) throws IOException |
| { |
| DaytimeUDPClient client = new DaytimeUDPClient(); |
| |
| // We want to timeout if a response takes longer than 60 seconds |
| client.setDefaultTimeout(60000); |
| client.open(); |
| System.out.println(client.getTime( |
| InetAddress.getByName(host)).trim()); |
| client.close(); |
| } |
| |
| |
| public static void main(String[] args) |
| { |
| |
| if (args.length == 1) |
| { |
| try |
| { |
| daytimeTCP(args[0]); |
| } |
| catch (IOException e) |
| { |
| e.printStackTrace(); |
| System.exit(1); |
| } |
| } |
| else if (args.length == 2 && args[0].equals("-udp")) |
| { |
| try |
| { |
| daytimeUDP(args[1]); |
| } |
| catch (IOException e) |
| { |
| e.printStackTrace(); |
| System.exit(1); |
| } |
| } |
| else |
| { |
| System.err.println("Usage: daytime [-udp] <hostname>"); |
| System.exit(1); |
| } |
| |
| } |
| |
| } |
| |