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Commons Net example source code file (daytime.java)
The Commons Net daytime.java source code/* * 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 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> * <p> ***/ 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 final 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); } } } Other Commons Net examples (source code examples)Here is a short list of links related to this Commons Net daytime.java source code file: |
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