List of usage examples for org.apache.commons.net.nntp NewsgroupInfo getLastArticle
@Deprecated
public int getLastArticle()
From source file:com.almarsoft.GroundhogReader.lib.NNTPExtended.java
public long[] getGroupArticles(String group, long fromArticle, int limit) throws IOException { Vector<Long> list; long firstToGet, firstArticle, lastArticle; NewsgroupInfo groupInfo = new NewsgroupInfo(); if (!selectNewsgroup(group, groupInfo)) return null; firstArticle = groupInfo.getFirstArticle(); lastArticle = groupInfo.getLastArticle(); if (firstArticle == 0 && lastArticle == 0) return new long[0]; // First sync with this group; see the comment below if (fromArticle == -1) firstToGet = firstArticle;//from ww w.ja v a 2s . c o m else { if (fromArticle > lastArticle) { // No new articles return new long[0]; } else { firstToGet = fromArticle; } } // Now select the first article and start looping until limit or last article reached ArticlePointer art = new ArticlePointer(); list = new Vector<Long>(limit); // FIRST CONNECTION TO THE GROUP // If this is the first connection we only want the last "limit" articles from the group, // so we ask for the last message and go backwards until we have "limit" articles or // the first one. if (fromArticle == -1) { if (!selectArticle(lastArticle, art)) return new long[0]; for (int i = 0; i < limit; i++) { list.insertElementAt((long) art.articleNumber, 0); if (art.articleNumber == firstToGet) break; if (!selectPreviousArticle(art)) break; } } // NON-FIRST CONNECTION TO THE GROUP // For normal non-first connection we start with the last article we got on the previous session and advance from that // until limit or last article reached else { if (!selectArticle(firstToGet, art)) return new long[0]; for (int i = 0; i <= limit; i++) { list.add((long) art.articleNumber); if (art.articleNumber == lastArticle) break; if (!selectNextArticle(art)) break; } } int listSize = list.size(); long[] articleNumbers = new long[listSize]; for (int i = 0; i < listSize; i++) { articleNumbers[i] = list.get(i); } return articleNumbers; }
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 av a2 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.NntpManager.java
@Override public CommunicationChannelDelta getDelta(DB db, NntpNewsGroup newsgroup, Date date) throws Exception { NNTPClient nntpClient = NntpUtil.connectToNntpServer(newsgroup); NewsgroupInfo newsgroupInfo = NntpUtil.selectNewsgroup(nntpClient, newsgroup); int lastArticle = newsgroupInfo.getLastArticle(); // The following statement is not really needed, but I added it to speed up running, // in the date is far latter than the first day of the newsgroup. // if (Integer.parseInt(newsgroup.getLastArticleChecked())<134500) // newsgroup.setLastArticleChecked("134500"); //137500"); String lac = newsgroup.getLastArticleChecked(); if (lac == null || lac.equals("") || lac.equals("null")) lac = "-1"; int lastArticleChecked = Integer.parseInt(lac); if (lastArticleChecked < 0) lastArticleChecked = newsgroupInfo.getFirstArticle(); // FIXME: certain eclipse newsgroups return 0 for both FirstArticle and LastArticle which causes exceptions if (lastArticleChecked == 0) return null; CommunicationChannelDelta delta = new CommunicationChannelDelta(); delta.setNewsgroup(newsgroup);/*from w ww . ja v a2 s.c om*/ int retrievalStep = RETRIEVAL_STEP; Boolean dayCompleted = false; while (!dayCompleted) { if (lastArticleChecked + retrievalStep > lastArticle) { retrievalStep = lastArticle - lastArticleChecked; dayCompleted = true; } Article[] articles; Date articleDate = date; // The following loop discards messages for days earlier than the required one. do { articles = NntpUtil.getArticleInfo(nntpClient, lastArticleChecked + 1, lastArticleChecked + retrievalStep); if (articles.length > 0) { Article lastArticleRetrieved = articles[articles.length - 1]; java.util.Date javaArticleDate = NntpUtil.parseDate(lastArticleRetrieved.getDate()); articleDate = new Date(javaArticleDate); if (date.compareTo(articleDate) > 0) lastArticleChecked = lastArticleRetrieved.getArticleNumber(); } } while (date.compareTo(articleDate) > 0); for (Article article : articles) { java.util.Date javaArticleDate = NntpUtil.parseDate(article.getDate()); if (javaArticleDate != null) { articleDate = new Date(javaArticleDate); if (date.compareTo(articleDate) < 0) { dayCompleted = true; // System.out.println("dayCompleted"); } else if (date.compareTo(articleDate) == 0) { CommunicationChannelArticle communicationChannelArticle = new CommunicationChannelArticle(); communicationChannelArticle.setArticleId(article.getArticleId()); communicationChannelArticle.setArticleNumber(article.getArticleNumber()); communicationChannelArticle.setDate(javaArticleDate); // I haven't seen any messageThreadIds on NNTP servers, yet. // communicationChannelArticle.setMessageThreadId(article.messageThreadId()); NntpNewsGroup newNewsgroup = new NntpNewsGroup(); newNewsgroup.setUrl(newsgroup.getUrl()); newNewsgroup.setAuthenticationRequired(newsgroup.getAuthenticationRequired()); newNewsgroup.setUsername(newsgroup.getUsername()); newNewsgroup.setPassword(newsgroup.getPassword()); newNewsgroup.setNewsGroupName(newsgroup.getNewsGroupName()); newNewsgroup.setPort(newsgroup.getPort()); newNewsgroup.setInterval(newsgroup.getInterval()); communicationChannelArticle.setNewsgroup(newNewsgroup); communicationChannelArticle.setReferences(article.getReferences()); communicationChannelArticle.setSubject(article.getSubject()); communicationChannelArticle.setUser(article.getFrom()); communicationChannelArticle .setText(getContents(db, newNewsgroup, communicationChannelArticle)); delta.getArticles().add(communicationChannelArticle); lastArticleChecked = article.getArticleNumber(); // System.out.println("dayNOTCompleted"); } else { //TODO: In this case, there are unprocessed articles whose date is earlier than the date requested. // This means that the deltas of those article dates are incomplete, // i.e. the deltas did not contain all articles of those dates. } } else { // If an article has no correct date, then ignore it System.err.println("\t\tUnparsable article date: " + article.getDate()); } } } nntpClient.disconnect(); newsgroup.setLastArticleChecked(lastArticleChecked + ""); System.out.println( "delta (" + date.toString() + ") contains:\t" + delta.getArticles().size() + " nntp articles"); return delta; }
From source file:org.ossmeter.platform.communicationchannel.nntp.NntpManager.java
@Override public Date getFirstDate(DB db, NntpNewsGroup newsgroup) throws Exception { NNTPClient nntpClient = NntpUtil.connectToNntpServer(newsgroup); NewsgroupInfo newsgroupInfo = NntpUtil.selectNewsgroup(nntpClient, newsgroup); int firstArticleNumber = newsgroupInfo.getFirstArticle(); if (firstArticleNumber == 0) { return null; // This is to deal with message-less newsgroups. }//from w ww.j a v a 2 s . co m Reader reader = nntpClient.retrieveArticle(firstArticleNumber); while (reader == null) { firstArticleNumber++; reader = nntpClient.retrieveArticle(firstArticleNumber); if (firstArticleNumber >= newsgroupInfo.getLastArticle()) break; } ArticleHeader articleHeader = new ArticleHeader(reader); // Article article = NntpUtil.getArticleInfo(nntpClient, articleId); nntpClient.disconnect(); // String date = article.getDate(); return new Date(NntpUtil.parseDate(articleHeader.getDate().trim())); }
From source file:org.rssowl.contrib.internal.nntp.NewsGroupHandler.java
public Pair<IFeed, IConditionalGet> reload(URI link, IProgressMonitor monitor, Map<Object, Object> properties) throws CoreException { IModelFactory factory = Owl.getModelFactory(); /* Create a new empty feed from the existing one */ IFeed feed = factory.createFeed(null, link); /* Retrieve last article pointer */ Integer lastArticleId = getLastArticleId(properties); /* Create a new HttpClient */ NNTPClient client = new NNTPClient(); try {/*from ww w .j a v a 2s. c o m*/ /* Support early cancellation */ if (monitor.isCanceled()) return null; /* Connect to Server */ if (link.getPort() != -1) client.connect(link.getHost(), link.getPort()); else client.connect(link.getHost()); /* Set Timeout */ setTimeout(client, properties); /* Support early cancellation */ if (monitor.isCanceled()) return null; /* Authentication if provided */ setupAuthentication(link, client); /* Check Authentication Required */ checkAuthenticationRequired(client); /* Support early cancellation */ if (monitor.isCanceled()) return null; /* Enable Reader Mode */ client.sendCommand(MODE_READER); /* Support early cancellation */ if (monitor.isCanceled()) return null; /* Select Newsgroup */ String newsgroup = link.getPath().replace("/", ""); NewsgroupInfo groupInfo = new NewsgroupInfo(); boolean selected = client.selectNewsgroup(newsgroup, groupInfo); /* Check Authentication Required */ checkAuthenticationRequired(client); /* Check Newsgroup Selected */ if (!selected) throwConnectionException("Unable to select Newsgroup", client); /* Support early cancellation */ if (monitor.isCanceled()) return null; /* First reload: Retrieve an initial amount of News */ if (lastArticleId == null) { /* Set Article Pointer to last Article */ int status = client.stat(groupInfo.getLastArticle()); if (status != STATUS_ARTICLE_POINTER_OK) throwConnectionException("Unable to retrieve any News", client); /* Retrieve initial news */ for (int i = 0; i < INITIAL_NEWS && !monitor.isCanceled(); i++) { createNews(client.retrieveArticle(), feed, monitor); /* Goto previous news if provided */ int result = client.last(); if (result != STATUS_ARTICLE_POINTER_OK) break; } } /* Subsequent reload: Set pointer to last retrieved News */ else { /* Set Article Pointer to last retrieved News */ int status = client.stat(lastArticleId); if (status != STATUS_ARTICLE_POINTER_OK) throwConnectionException("Unable to retrieve any News", client); /* Retrieve all the following News */ while (client.next() == STATUS_ARTICLE_POINTER_OK && !monitor.isCanceled()) createNews(client.retrieveArticle(), feed, monitor); } /* Remember last article's ID */ lastArticleId = groupInfo.getLastArticle(); } /* Wrap Exceptions */ catch (IOException e) { throw new ConnectionException(Activator.createErrorStatus(e.getMessage(), e)); } /* Disconnect */ finally { try { if (client.isConnected()) client.disconnect(); } catch (IOException e) { throw new ConnectionException(Activator.createErrorStatus(e.getMessage(), e)); } } /* Create Conditional Get Object */ IConditionalGet conditionalGet = null; if (lastArticleId != null) conditionalGet = factory.createConditionalGet(null, link, String.valueOf(lastArticleId)); return Pair.create(feed, conditionalGet); }