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Commons Net example source code file (fwhois.java)
The Commons Net fwhois.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 java.net.UnknownHostException; import org.apache.commons.net.whois.WhoisClient; /*** * This is an example of how you would implement the Linux fwhois command * in Java using NetComponents. The Java version is much shorter. * <p> ***/ public final class fwhois { public static final void main(String[] args) { int index; String handle, host; InetAddress address = null; WhoisClient whois; if (args.length != 1) { System.err.println("usage: fwhois handle[@<server>]"); System.exit(1); } index = args[0].lastIndexOf("@"); whois = new WhoisClient(); // We want to timeout if a response takes longer than 60 seconds whois.setDefaultTimeout(60000); if (index == -1) { handle = args[0]; host = WhoisClient.DEFAULT_HOST; } else { handle = args[0].substring(0, index); host = args[0].substring(index + 1); } try { address = InetAddress.getByName(host); System.out.println("[" + address.getHostName() + "]"); } catch (UnknownHostException e) { System.err.println("Error unknown host: " + e.getMessage()); System.exit(1); } try { whois.connect(address); System.out.print(whois.query(handle)); whois.disconnect(); } catch (IOException e) { System.err.println("Error I/O exception: " + e.getMessage()); System.exit(1); } } } Other Commons Net examples (source code examples)Here is a short list of links related to this Commons Net fwhois.java source code file: |
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