Example usage for org.apache.commons.net.nntp NNTPClient disconnect

Introduction

In this page you can find the example usage for org.apache.commons.net.nntp NNTPClient disconnect.

Prototype

@Override
public void disconnect() throws IOException 

Source Link

Document

Closes the connection to the NNTP server and sets to null some internal data so that the memory may be reclaimed by the garbage collector.

Usage

From source file:examples.nntp.newsgroups.java

public final static void main(String[] args) {
    NNTPClient client;
    NewsgroupInfo[] list;//from w  w w.  j  av a2  s.  co m

    if (args.length < 1) {
        System.err.println("Usage: newsgroups newsserver");
        System.exit(1);
    }

    client = new NNTPClient();

    try {
        client.connect(args[0]);

        list = client.listNewsgroups();

        if (list != null) {
            for (int i = 0; i < list.length; i++)
                System.out.println(list[i].getNewsgroup());
        } else {
            System.err.println("LIST command failed.");
            System.err.println("Server reply: " + client.getReplyString());
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (client.isConnected())
                client.disconnect();
        } catch (IOException e) {
            System.err.println("Error disconnecting from server.");
            e.printStackTrace();
            System.exit(1);
        }
    }

}

---

From source file:examples.nntp.ListNewsgroups.java

public static void main(String[] args) {
    if (args.length < 1) {
        System.err.println("Usage: newsgroups newsserver [pattern]");
        return;/*www.j a v a2 s .c  om*/
    }

    NNTPClient client = new NNTPClient();
    String pattern = args.length >= 2 ? args[1] : "";

    try {
        client.connect(args[0]);

        int j = 0;
        try {
            for (String s : client.iterateNewsgroupListing(pattern)) {
                j++;
                System.out.println(s);
            }
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        System.out.println(j);

        j = 0;
        for (NewsgroupInfo n : client.iterateNewsgroups(pattern)) {
            j++;
            System.out.println(n.getNewsgroup());
        }
        System.out.println(j);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (client.isConnected()) {
                client.disconnect();
            }
        } catch (IOException e) {
            System.err.println("Error disconnecting from server.");
            e.printStackTrace();
            System.exit(1);
        }
    }

}

---

From source file:examples.nntp.post.java

public final static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;//  w  ww .  ja  va2  s . c  o  m
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0)
                break;

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0)
            header.addHeaderField("Organization", organization);

        if (references != null && organization.length() > 0)
            header.addHeaderField("References", references);

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        fileReader.close();

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

---

From source file:examples.nntp.PostMessage.java

public static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;/*from   w  w w  .  j  a v  a  2  s.c  o m*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

---

From source file:me.lehrner.newsgroupsndy.presenter.tasks.UpdateGroupListAsyncTask.java

@Override
protected Boolean doInBackground(Server... servers) {
    mServerId = servers[0].getId();/* w  w w. j a va2 s. co  m*/

    String hostName = servers[0].getServerUrl();
    int lastVisitInt = servers[0].getLastVisit();

    NewsgroupInfo[] newsgroupInfos;
    ArrayList<String> groupNames = new ArrayList<>();

    try {
        NNTPClient nntpClient = new NNTPClient();
        nntpClient.connect(hostName, 119);

        Log.d(LOG_TAG, "lastVisitInt: " + lastVisitInt);

        if (lastVisitInt != 0) {
            Calendar lastVisit = Calendar.getInstance();
            lastVisit.setTimeInMillis(lastVisitInt * 1000L);

            NewGroupsOrNewsQuery query = new NewGroupsOrNewsQuery(lastVisit, false);
            newsgroupInfos = nntpClient.listNewNewsgroups(query);

            Log.d(LOG_TAG, "listNewNewsgroups");

        } else {
            newsgroupInfos = nntpClient.listNewsgroups();

            Log.d(LOG_TAG, "listNewsgroups");

        }

        nntpClient.disconnect();
    } catch (IOException e) {
        Log.d(LOG_TAG, "IOException");

        GroupPresenter groupPresenter = mGroupPresenterWeakReference.get();

        if (groupPresenter != null) {
            groupPresenter.updateNotSuccessful();
        }
        return false;
    }

    if (newsgroupInfos == null) {
        Log.d(LOG_TAG, "newsgroupInfos is null");
        return false;
    }

    for (NewsgroupInfo newsgroupInfo : newsgroupInfos) {
        groupNames.add(newsgroupInfo.getNewsgroup());
    }

    return mGroupRepository.saveGroups(mServerId, groupNames);
}

---

From source file:org.apache.common.net.examples.nntp.ListNewsgroups.java

public final static void main(String[] args) {
    if (args.length < 1) {
        System.err.println("Usage: newsgroups newsserver [pattern]");
        return;/* w w  w.j a  v  a 2 s  . co m*/
    }

    NNTPClient client = new NNTPClient();
    String pattern = args.length >= 2 ? args[1] : "";

    try {
        client.connect(args[0]);

        int j = 0;
        try {
            for (String s : client.iterateNewsgroupListing(pattern)) {
                j++;
                System.out.println(s);
            }
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        System.out.println(j);

        j = 0;
        for (NewsgroupInfo n : client.iterateNewsgroups(pattern)) {
            j++;
            System.out.println(n.getNewsgroup());
        }
        System.out.println(j);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (client.isConnected()) {
                client.disconnect();
            }
        } catch (IOException e) {
            System.err.println("Error disconnecting from server.");
            e.printStackTrace();
            System.exit(1);
        }
    }

}

---

From source file:org.apache.common.net.examples.nntp.PostMessage.java

public final static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;//from   www  .j  a  v a2s  .  c  o  m
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("ProcessExecutorHelper-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

---

From source file:org.apache.commons.net.examples.nntp.PostMessage.java

public static void main(String[] args) {
    String from, subject, newsgroup, fileName, server, organization;
    String references;/*from w ww .j av a  2 s.  co m*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            newsgroup = stdin.readLine();
            if (newsgroup == null) {
                break;
            }

            newsgroup = newsgroup.trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        fileName = stdin.readLine();

        try {
            fileReader = new FileReader(fileName);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

---

From source file:org.ossmeter.platform.communicationchannel.nntp.local.NNTPDownloader.java

public void downloadMessages(NntpNewsGroup newsgroup) throws Exception {
    final long startTime = System.currentTimeMillis();
    long previousTime = startTime;
    previousTime = printTimeMessage(startTime, previousTime, "Download started");

    NNTPClient nntpClient = NntpUtil.connectToNntpServer(newsgroup);

    NewsgroupInfo newsgroupInfo = NntpUtil.selectNewsgroup(nntpClient, newsgroup);

    int lastArticleChecked = newsgroupInfo.getFirstArticle();
    previousTime = printTimeMessage(startTime, previousTime,
            "First message in newsgroup:\t" + lastArticleChecked);

    int lastArticle = newsgroupInfo.getLastArticle();
    previousTime = printTimeMessage(startTime, previousTime, "Last message in newsgroup:\t" + lastArticle);

    previousTime = printTimeMessage(startTime, previousTime,
            "Articles in newsgroup:\t" + newsgroupInfo.getArticleCount());
    System.err.println();/*from   w w  w  . j  a  va  2  s  . c o  m*/

    Mongo mongo = new Mongo();
    DB db = mongo.getDB(newsgroup.getName() + "LocalStorage");
    Messages dbMessages = new Messages(db);

    NewsgroupData newsgroupData = dbMessages.getNewsgroup().findOneByName(newsgroup.getName());
    if (newsgroupData != null) {
        int newsgroupLastArticleChecked = Integer.parseInt(newsgroupData.getLastArticleChecked());
        if (newsgroupLastArticleChecked > lastArticleChecked) {
            lastArticleChecked = newsgroupLastArticleChecked;
        }
        previousTime = printTimeMessage(startTime, previousTime,
                "Last article checked set to:\t" + lastArticleChecked);
    } else {
        newsgroupData = new NewsgroupData();
        newsgroupData.setName(newsgroup.getName());
        newsgroupData.setUrl(newsgroup.getUrl());
        newsgroupData.setAuthenticationRequired(newsgroup.getAuthenticationRequired());
        newsgroupData.setUsername(newsgroup.getUsername());
        newsgroupData.setPassword(newsgroup.getPassword());
        newsgroupData.setPort(newsgroup.getPort());
        newsgroupData.setInterval(newsgroup.getInterval());
        newsgroupData.setFirstArticle(lastArticleChecked + "");
        dbMessages.getNewsgroup().add(newsgroupData);
    }

    int retrievalStep = RETRIEVAL_STEP;
    while (lastArticleChecked < lastArticle) {
        if (lastArticleChecked + retrievalStep > lastArticle) {
            retrievalStep = lastArticle - lastArticleChecked;
        }
        Article[] articles = NntpUtil.getArticleInfo(nntpClient, lastArticleChecked + 1,
                lastArticleChecked + retrievalStep);
        if (articles.length > 0) {
            Article lastArticleRetrieved = articles[articles.length - 1];
            lastArticleChecked = lastArticleRetrieved.getArticleNumber();
            newsgroupData.setLastArticleChecked(lastArticleChecked + "");
        }
        previousTime = printTimeMessage(startTime, previousTime,
                "downloaded:\t" + articles.length + " nntp articles");
        previousTime = printTimeMessage(startTime, previousTime, "downloading contents\t");

        for (Article article : articles) {
            ArticleData articleData = new ArticleData();
            articleData.setUrl(newsgroup.getUrl());
            articleData.setArticleNumber(article.getArticleNumber());
            articleData.setArticleId(article.getArticleId());
            articleData.setDate(article.getDate());
            articleData.setFrom(article.getFrom());
            articleData.setSubject(article.getSubject());
            for (String referenceId : article.getReferences())
                articleData.getReferences().add(referenceId);
            articleData.setBody(NntpUtil.getArticleBody(nntpClient, article.getArticleNumber()));
            dbMessages.getArticles().add(articleData);
        }
        dbMessages.sync();
        previousTime = printTimeMessage(startTime, previousTime, "stored:\t" + dbMessages.getArticles().size()
                + " / " + newsgroupInfo.getArticleCount() + " nntp articles sofar");
        System.err.println();
    }
    nntpClient.disconnect();
    dbMessages.sync();
    previousTime = printTimeMessage(startTime, previousTime, "stored:\t" + dbMessages.getArticles().size()
            + " / " + newsgroupInfo.getArticleCount() + " nntp articles");
}

---

From source file:org.ossmeter.platform.communicationchannel.nntp.local.NNTPDownloader.java

public String getContents(NntpNewsGroup newsgroup, int articleNumber) throws Exception {
    //      System.out.print(" " + articleNumber);
    NNTPClient nntpClient = NntpUtil.connectToNntpServer(newsgroup);
    NntpUtil.selectNewsgroup(nntpClient, newsgroup);
    String contents = NntpUtil.getArticleBody(nntpClient, articleNumber);
    nntpClient.disconnect();
    return contents;
}

---

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