private Object getTopic(Long topicId, String siteId, String userId) {
if (LOG.isDebugEnabled()) {
LOG.debug("getTopic(" + topicId + "," + siteId + "," + userId + ")");
}
// This call gets the attachments for the messages but not the topic. Unexpected, yes. Cool,
// not.
DiscussionTopic fatTopic =
(DiscussionTopic) forumManager.getTopicByIdWithMessagesAndAttachments(topicId);
if (!uiPermissionsManager.isRead(
topicId,
fatTopic.getDraft(),
false,
userId,
forumManager.getContextForTopicById(topicId))) {
LOG.error("'" + userId + "' is not authorised to read topic '" + topicId + "'.");
throw new EntityException(
"You are not authorised to read this topic.", "", HttpServletResponse.SC_UNAUTHORIZED);
}
SparseTopic sparseTopic = new SparseTopic(fatTopic);
// Setup the total and read message counts on the topic
List<Long> topicIds = new ArrayList<Long>();
topicIds.add(fatTopic.getId());
List<Object[]> totalCounts = forumManager.getMessageCountsForMainPage(topicIds);
if (totalCounts.size() > 0) {
sparseTopic.setTotalMessages((Integer) totalCounts.get(0)[1]);
} else {
sparseTopic.setTotalMessages(0);
}
List<Object[]> readCounts = forumManager.getReadMessageCountsForMainPage(topicIds);
if (readCounts.size() > 0) {
sparseTopic.setReadMessages((Integer) readCounts.get(0)[1]);
} else {
sparseTopic.setReadMessages(0);
}
List<SparseMessage> messages = new ArrayList<SparseMessage>();
for (Message fatMessage : (List<Message>) fatTopic.getMessages()) {
SparseMessage sparseMessage =
new SparseMessage(
fatMessage,
/* readStatus = */ false,
/* addAttachments = */ true,
developerHelperService.getServerURL());
messages.add(sparseMessage);
}
List<SparseThread> threads =
new MessageUtils().getThreadsWithCounts(messages, forumManager, userId);
sparseTopic.setThreads(threads);
return sparseTopic;
}
// find topics in site, but organized by forum
public List<LessonEntity> getEntitiesInSite(SimplePageBean bean) {
List<LessonEntity> ret = new ArrayList<LessonEntity>();
// LSNBLDR-21. If the tool is not in the current site we shouldn't query
// for topics owned by the tool.
Site site = null;
try {
site = SiteService.getSite(ToolManager.getCurrentPlacement().getContext());
} catch (Exception impossible) {
return ret;
}
ToolConfiguration tool = site.getToolForCommonId("sakai.forums");
if (tool == null) {
// Forums is not in this site. Move on to the next provider.
if (nextEntity != null) ret.addAll(nextEntity.getEntitiesInSite());
return ret;
}
// ForumEntity e = new ForumEntity(TYPE_FORUM_TOPIC, 3L, 2);
// e.setGroups(Arrays.asList("1c24287b-b880-43da-8cdd-c6cdc1249c5c",
// "75184424-853e-4dd4-9e92-980c851f0580"));
// e.setGroups(Arrays.asList("75184424-853e-4dd4-9e92-980c851f0580"));
SortedSet<DiscussionForum> forums =
new TreeSet<DiscussionForum>(new ForumBySortIndexAscAndCreatedDateDesc());
for (DiscussionForum forum : forumManager.getForumsForMainPage()) forums.add(forum);
// security. assume this is only used in places where it's OK, so skip security checks
for (DiscussionForum forum : forums) {
if (!forum.getDraft()) {
ForumEntity entity = new ForumEntity(TYPE_FORUM_FORUM, forum.getId(), 1);
entity.forum = forum;
ret.add(entity);
for (Object o : forum.getTopicsSet()) {
DiscussionTopic topic = (DiscussionTopic) o;
if (topic.getDraft().equals(Boolean.FALSE)) {
entity = new ForumEntity(TYPE_FORUM_TOPIC, topic.getId(), 2);
entity.topic = topic;
ret.add(entity);
}
}
}
}
if (nextEntity != null) ret.addAll(nextEntity.getEntitiesInSite(bean));
return ret;
}
// returns SakaiId of thing just created
public String importObject(
String title,
String topicTitle,
String text,
boolean texthtml,
String base,
String baseDir,
String siteId,
List<String> attachmentHrefs,
boolean hide) {
DiscussionForum ourForum = null;
DiscussionTopic ourTopic = null;
int forumtry = 0;
int topictry = 0;
for (; ; ) {
ourForum = null;
SortedSet<DiscussionForum> forums =
new TreeSet<DiscussionForum>(new ForumBySortIndexAscAndCreatedDateDesc());
for (DiscussionForum forum : discussionForumManager.getForumsForMainPage()) forums.add(forum);
for (DiscussionForum forum : forums) {
if (forum.getTitle().equals(title)) {
ourForum = forum;
break;
}
}
if (ourForum == null) {
if (forumtry > 0) {
System.out.println("oops, forum still not there the second time");
return null;
}
forumtry++;
// if a new site, may need to create the area or we'll get a backtrace when creating forum
areaManager.getDiscussionArea(siteId);
ourForum = discussionForumManager.createForum();
ourForum.setTitle(title);
discussionForumManager.saveForum(siteId, ourForum);
continue; // reread, better be there this time
}
// forum now exists, and was just reread
ourTopic = null;
for (Object o : ourForum.getTopicsSet()) {
DiscussionTopic topic = (DiscussionTopic) o;
if (topic.getTitle().equals(topicTitle)) {
ourTopic = topic;
break;
}
}
if (ourTopic != null) // ok, forum and topic exist
break;
if (topictry > 0) {
System.out.println("oops, topic still not there the second time");
return null;
}
topictry++;
// create it
ourTopic = discussionForumManager.createTopic(ourForum);
ourTopic.setTitle(topicTitle);
if (attachmentHrefs != null && attachmentHrefs.size() > 0) {
for (String href : attachmentHrefs) {
// we don't have any real label for attachments. About all we can do is use the filename,
// without path
String label = href;
int slash = label.lastIndexOf("/");
if (slash >= 0) label = label.substring(slash + 1);
if (label.equals("")) label = "Attachment";
// basedir is a folder in contenthosting starting with /group/ where our content has been
// loaded
// discussionForum needs a Sakai content resource ID for the attachment
Attachment thisDFAttach =
discussionForumManager.createDFAttachment(removeDotDot(baseDir + href), label);
ourTopic.addAttachment(thisDFAttach);
}
}
String shortText = null;
if (texthtml) {
ourTopic.setExtendedDescription(text.replaceAll("\\$IMS-CC-FILEBASE\\$", base));
shortText = FormattedText.convertFormattedTextToPlaintext(text);
} else {
ourTopic.setExtendedDescription(FormattedText.convertPlaintextToFormattedText(text));
shortText = text;
}
shortText = org.apache.commons.lang.StringUtils.abbreviate(shortText, 254);
ourTopic.setShortDescription(shortText);
// there's a better way to do attachments, but it's too complex for now
if (hide) discussionForumManager.saveTopicAsDraft(ourTopic);
else discussionForumManager.saveTopic(ourTopic);
// now go back and mmake sure everything is there
}
return "/" + FORUM_TOPIC + "/" + ourTopic.getId();
}
public String findObject(String objectid, Map<String, String> objectMap, String siteid) {
if (!objectid.startsWith("forum_topic/") && !objectid.startsWith("forum_forum/")) {
if (nextEntity != null) {
return nextEntity.findObject(objectid, objectMap, siteid);
}
return null;
}
// isolate forum_topic/NNN from title
int i = 0;
if (objectid.startsWith("forum_topic/")) i = objectid.indexOf("/", "forum_topic/".length());
else i = objectid.indexOf("/", "forum_forum/".length());
if (i <= 0) return null;
String realobjectid = objectid.substring(0, i);
// msgcenter uses forum/ not forum_forum/
if (objectid.startsWith("forum_forum/"))
realobjectid = realobjectid.substring("forum_".length());
// now see if it's in the map
String newtopic = objectMap.get(realobjectid);
if (newtopic != null) {
if (objectid.startsWith("forum_forum/"))
return "/forum_" + newtopic; // forum/ID >> /forum_forum/ID
else return "/" + newtopic; // sakaiid is /forum_topic/ID
}
// this must be 2.8. Can't find the topic in the map
// i is start of title
String title = null;
String forumtitle = null;
if (objectid.startsWith("forum_topic/")) {
int j = objectid.indexOf("\n");
title = objectid.substring(i + 1, j);
forumtitle = objectid.substring(j + 1);
} else {
forumtitle = objectid.substring(i + 1);
}
// unfortunately we have to search the topic tree to find it.
SortedSet<DiscussionForum> forums =
new TreeSet<DiscussionForum>(new ForumBySortIndexAscAndCreatedDateDesc());
for (DiscussionForum forum : forumManager.getForumsForMainPage()) forums.add(forum);
// security. assume this is only used in places where it's OK, so skip security checks
// ignore draft status. We want to show drafts.
for (DiscussionForum forum : forums) {
if (forum.getTitle().equals(forumtitle)) {
if (title == null) // object is forum not topic
return "/forum_forum/" + forum.getId();
for (Object o : forum.getTopicsSet()) {
DiscussionTopic topic = (DiscussionTopic) o;
if (topic.getTitle().equals(title)) {
return "/forum_topic/" + topic.getId();
}
}
}
}
return null;
}
/** This will return a SparseForum populated down to the topics with their attachments. */
private Object getForum(Long forumId, String siteId, String userId) {
if (LOG.isDebugEnabled()) {
LOG.debug("getForum(" + forumId + "," + siteId + "," + userId + ")");
}
DiscussionForum fatForum = forumManager.getForumByIdWithTopicsAttachmentsAndMessages(forumId);
if (checkAccess(fatForum, userId, siteId)) {
SparseForum sparseForum = new SparseForum(fatForum, developerHelperService);
List<DiscussionTopic> fatTopics = (List<DiscussionTopic>) fatForum.getTopics();
// Gather all the topic ids so we can make the minimum number
// of calls for the message counts.
List<Long> topicIds = new ArrayList<Long>();
for (DiscussionTopic topic : fatTopics) {
topicIds.add(topic.getId());
}
List<Object[]> topicTotals = forumManager.getMessageCountsForMainPage(topicIds);
List<Object[]> topicReadTotals = forumManager.getReadMessageCountsForMainPage(topicIds);
int totalForumMessages = 0;
for (Object[] topicTotal : topicTotals) {
totalForumMessages += (Integer) topicTotal[1];
}
sparseForum.setTotalMessages(totalForumMessages);
int totalForumReadMessages = 0;
for (Object[] topicReadTotal : topicReadTotals) {
totalForumReadMessages += (Integer) topicReadTotal[1];
}
sparseForum.setReadMessages(totalForumReadMessages);
// Reduce the fat topics to sparse topics while setting the total and read
// counts. A SparseTopic will only be created if the currrent user has read access.
List<SparsestTopic> sparseTopics = new ArrayList<SparsestTopic>();
for (DiscussionTopic fatTopic : fatTopics) {
// Only add this topic to the list if the current user has read permission
if (!uiPermissionsManager.isRead(fatTopic, fatForum, userId, siteId)) {
// No read permission, skip this topic.
continue;
}
SparsestTopic sparseTopic = new SparsestTopic(fatTopic);
for (Object[] topicTotal : topicTotals) {
if (topicTotal[0].equals(sparseTopic.getId())) {
sparseTopic.setTotalMessages((Integer) topicTotal[1]);
}
}
for (Object[] topicReadTotal : topicReadTotals) {
if (topicReadTotal[0].equals(sparseTopic.getId())) {
sparseTopic.setReadMessages((Integer) topicReadTotal[1]);
}
}
List<SparseAttachment> attachments = new ArrayList<SparseAttachment>();
for (Attachment attachment : (List<Attachment>) fatTopic.getAttachments()) {
String url =
developerHelperService.getServerURL()
+ "/access/content"
+ attachment.getAttachmentId();
attachments.add(new SparseAttachment(attachment.getAttachmentName(), url));
}
sparseTopic.setAttachments(attachments);
sparseTopics.add(sparseTopic);
}
sparseForum.setTopics(sparseTopics);
return sparseForum;
} else {
LOG.error("Not authorised to access forum '" + forumId + "'");
throw new EntityException(
"You are not authorised to access this forum.", "", HttpServletResponse.SC_UNAUTHORIZED);
}
}