public IndexSearcher getSearcher() {
try {
if (reader == null) {
reader = IndexReader.open(directory, false);
} else {
IndexReader tr = IndexReader.openIfChanged(reader);
if (tr != null) {
reader.close();
reader = tr;
}
}
return new IndexSearcher(reader);
} catch (CorruptIndexException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
protected void reopenSearcher() throws IOException {
try {
reopenLock.lock();
if (updateCount.get() > 0) {
logger.info("proccessing reopen...");
IndexReader oldIndexReader = this.indexReader;
IndexSearcher oldIndexSearcher = this.indexSearcher;
IndexReader newIndexReader = IndexReader.openIfChanged(oldIndexReader);
if (newIndexReader != null) {
IndexSearcher newIndexSearcher = new IndexSearcher(newIndexReader);
indexSearcher = newIndexSearcher;
indexReader = newIndexReader;
CloseUtil.close(oldIndexReader);
CloseUtil.close(oldIndexSearcher);
}
updateCount.set(0);
logger.info("proccess reopen finish.");
} else {
logger.info("no thing to reopen");
}
} finally {
reopenLock.unlock();
}
}