public final int doWikiStartTag() throws IOException {
WikiSession session = m_wikiContext.getWikiSession();
if (CLEAR.equals(m_action)) {
if (m_topic == null) {
session.clearMessages();
} else {
session.clearMessages(m_topic);
}
} else {
String[] messages = (m_topic == null) ? session.getMessages() : session.getMessages(m_topic);
if (messages.length > 0) {
StringBuffer sb = new StringBuffer();
if (messages.length == 1) {
sb.append(
"<div class=\""
+ m_div
+ "\">"
+ m_prefix
+ TextUtil.replaceEntities(messages[0])
+ "</div>");
} else {
sb.append("<div class=\"" + m_div + "\">" + m_prefix);
sb.append("<ul>");
for (int i = 0; i < messages.length; i++) {
sb.append("<li>" + TextUtil.replaceEntities(messages[i]) + "</li>");
}
sb.append("</ul></div>");
}
pageContext.getOut().println(sb.toString());
}
}
return SKIP_BODY;
}
/** {@inheritDoc} */
public void initialize(WikiEngine engine, Properties props)
throws NoRequiredPropertyException, IOException {
m_engine = engine;
m_luceneDirectory = engine.getWorkDir() + File.separator + LUCENE_DIR;
int initialDelay =
TextUtil.getIntegerProperty(props, PROP_LUCENE_INITIALDELAY, LuceneUpdater.INITIAL_DELAY);
int indexDelay =
TextUtil.getIntegerProperty(props, PROP_LUCENE_INDEXDELAY, LuceneUpdater.INDEX_DELAY);
m_analyzerClass = TextUtil.getStringProperty(props, PROP_LUCENE_ANALYZER, m_analyzerClass);
// FIXME: Just to be simple for now, we will do full reindex
// only if no files are in lucene directory.
File dir = new File(m_luceneDirectory);
log.info("Lucene enabled, cache will be in: " + dir.getAbsolutePath());
try {
if (!dir.exists()) {
dir.mkdirs();
}
if (!dir.exists() || !dir.canWrite() || !dir.canRead()) {
log.error("Cannot write to Lucene directory, disabling Lucene: " + dir.getAbsolutePath());
throw new IOException("Invalid Lucene directory.");
}
String[] filelist = dir.list();
if (filelist == null) {
throw new IOException(
"Invalid Lucene directory: cannot produce listing: " + dir.getAbsolutePath());
}
} catch (IOException e) {
log.error("Problem while creating Lucene index - not using Lucene.", e);
}
// Start the Lucene update thread, which waits first
// for a little while before starting to go through
// the Lucene "pages that need updating".
LuceneUpdater updater = new LuceneUpdater(m_engine, this, initialDelay, indexDelay);
updater.start();
}
/**
* Indexes page using the given IndexWriter.
*
* @param page WikiPage
* @param text Page text to index
* @param writer The Lucene IndexWriter to use for indexing
* @return the created index Document
* @throws IOException If there's an indexing problem
*/
protected Document luceneIndexPage(WikiPage page, String text, IndexWriter writer)
throws IOException {
if (log.isDebugEnabled()) log.debug("Indexing " + page.getName() + "...");
// make a new, empty document
Document doc = new Document();
if (text == null) return doc;
// Raw name is the keyword we'll use to refer to this document for updates.
Field field = new Field(LUCENE_ID, page.getName(), Field.Store.YES, Field.Index.NOT_ANALYZED);
doc.add(field);
// Body text. It is stored in the doc for search contexts.
field =
new Field(
LUCENE_PAGE_CONTENTS, text, Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.NO);
doc.add(field);
// Allow searching by page name. Both beautified and raw
String unTokenizedTitle =
StringUtils.replaceChars(
page.getName(), MarkupParser.PUNCTUATION_CHARS_ALLOWED, c_punctuationSpaces);
field =
new Field(
LUCENE_PAGE_NAME,
TextUtil.beautifyString(page.getName()) + " " + unTokenizedTitle,
Field.Store.YES,
Field.Index.ANALYZED,
Field.TermVector.NO);
doc.add(field);
// Allow searching by authorname
if (page.getAuthor() != null) {
field =
new Field(
LUCENE_AUTHOR,
page.getAuthor(),
Field.Store.YES,
Field.Index.ANALYZED,
Field.TermVector.NO);
doc.add(field);
}
// Now add the names of the attachments of this page
try {
Collection attachments = m_engine.getAttachmentManager().listAttachments(page);
String attachmentNames = "";
for (Iterator it = attachments.iterator(); it.hasNext(); ) {
Attachment att = (Attachment) it.next();
attachmentNames += att.getName() + ";";
}
field =
new Field(
LUCENE_ATTACHMENTS,
attachmentNames,
Field.Store.YES,
Field.Index.ANALYZED,
Field.TermVector.NO);
doc.add(field);
} catch (ProviderException e) {
// Unable to read attachments
log.error("Failed to get attachments for page", e);
}
writer.addDocument(doc);
return doc;
}