001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 019 package examples.nntp; 020 021 import java.io.IOException; 022 import java.io.PrintWriter; 023 import java.net.SocketException; 024 import java.util.List; 025 026 import org.apache.commons.net.PrintCommandListener; 027 import org.apache.commons.net.nntp.Article; 028 import org.apache.commons.net.nntp.NNTPClient; 029 import org.apache.commons.net.nntp.NewsgroupInfo; 030 import org.apache.commons.net.nntp.Threader; 031 032 033 public class MessageThreading { 034 public MessageThreading() { 035 } 036 037 public static void main(String[] args) throws SocketException, IOException { 038 039 if (args.length != 3) 040 usage(); 041 042 String hostname = args[0]; 043 String user = args[1]; 044 String password = args[2]; 045 046 NNTPClient client = new NNTPClient(); 047 client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out))); 048 client.connect(hostname); 049 // optional authentication 050 // 051 // if(!client.authenticate(user, password)) { 052 // System.out.println("Authentication failed for user " + user + "!"); 053 // // System.exit(1); 054 // } 055 // 056 NewsgroupInfo group = new NewsgroupInfo(); 057 client.selectNewsgroup("alt.test", group); 058 059 long lowArticleNumber = group.getFirstArticle(); 060 long highArticleNumber = lowArticleNumber + 5000; 061 062 System.out.println("Retrieving articles between [" + lowArticleNumber + "] and [" + highArticleNumber + "]"); 063 List<Article> articles = NNTPUtils.getArticleInfo(client, lowArticleNumber, highArticleNumber); 064 065 System.out.println("Building message thread tree..."); 066 Threader threader = new Threader(); 067 Article root = (Article)threader.thread(articles); 068 069 Article.printThread(root, 0); 070 } 071 072 073 public static void usage() { 074 System.out.println("Usage: MessageThreading <hostname> <user> <password>"); 075 System.exit(0); 076 } 077 }