/**
* Get the searcher at the given position.
*
* <p>If the searcher's backing directory no longer exists, then close and disable it. A null
* entry will then exist at the given index.
*/
public Searcher get(int index) {
Searcher result = index < size() ? searchers.get(index) : null;
if (result != null) {
if (!result.getDirPath().exists()) {
// disable index that has disappeared.
searchers.set(index, null);
if (index < clusterSearchers.size()) clusterSearchers.set(index, null);
else extraSearchers.set(index - clusterSearchers.size(), null);
try {
result.close();
} catch (IOException e) {
System.err.println(
new Date()
+ ": WARNING : MultiSearcher couldn't close disappeared index at '"
+ result.getDirPath()
+ "'!");
e.printStackTrace(System.err);
}
result = null;
}
}
return result;
}
public void close() {
if (isClosed.compareAndSet(false, true)) {
for (Searcher searcher : searchers) {
if (searcher != null) {
try {
searcher.close();
} catch (IOException e) {
System.err.println(
new Date()
+ ": *** WARNING: "
+ luceneId
+ " unable to close searcher '"
+ searcher.getDirPath()
+ "'!");
}
}
}
}
}