/** {@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();
}
