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package examples.nntp; |
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import java.io.IOException; |
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import java.io.PrintWriter; |
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import org.apache.commons.net.nntp.Article; |
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import org.apache.commons.net.nntp.NNTPClient; |
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import org.apache.commons.net.nntp.NewsgroupInfo; |
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import examples.PrintCommandListener; |
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public class ExtendedNNTPOps { |
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NNTPClient client; |
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public ExtendedNNTPOps() { |
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client = new NNTPClient(); |
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client.addProtocolCommandListener(new PrintCommandListener(class="keyword">new PrintWriter(System.out))); |
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} |
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public void demo(String host, String user, String password) { |
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try { |
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client.connect(host); |
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boolean success = client.authenticate(user, password); |
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if (success) { |
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System.out.println("Authentication succeeded"); |
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} else { |
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System.out.println("Authentication failed, error =" + client.getReplyString()); |
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} |
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NewsgroupInfo testGroup = new NewsgroupInfo(); |
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client.selectNewsgroup("alt.test", testGroup); |
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int lowArticleNumber = testGroup.getFirstArticle(); |
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int highArticleNumber = lowArticleNumber + 100; |
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Article[] articles = NNTPUtils.getArticleInfo(client, lowArticleNumber, highArticleNumber); |
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for (int i = 0; i < articles.length; ++i) { |
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System.out.println(articles[i].getSubject()); |
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} |
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NewsgroupInfo[] fanGroups = client.listNewsgroups("alt.fan.*"); |
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for (int i = 0; i < fanGroups.length; ++i) { |
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System.out.println(fanGroups[i].getNewsgroup()); |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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public static void main(String[] args) { |
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ExtendedNNTPOps ops; |
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if (args.length != 3) { |
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System.err.println("usage: ExtendedNNTPOps nntpserver username password"); |
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System.exit(1); |
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} |
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ops = new ExtendedNNTPOps(); |
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ops.demo(args[0], args[1], args[2]); |
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} |
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} |
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