/** {@inheritDoc} */
public void pageRemoved(WikiPage page) {
IndexWriter writer = null;
try {
Directory luceneDir = new SimpleFSDirectory(new File(m_luceneDirectory), null);
writer = getIndexWriter(luceneDir);
Query query = new TermQuery(new Term(LUCENE_ID, page.getName()));
writer.deleteDocuments(query);
} catch (Exception e) {
log.error("Unable to remove page '" + page.getName() + "' from Lucene index", e);
} finally {
close(writer);
}
}
void close(IndexWriter writer) {
try {
if (writer != null) {
writer.close(true);
}
} catch (IOException e) {
log.error(e);
}
}
/**
* 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;
}
