/* (non-Javadoc)
* @see com.linkedin.zoie.impl.indexing.internal.BatchedIndexDataLoader#consume(java.util.Collection)
*/
@Override
public void consume(Collection<DataEvent<D>> events) throws ZoieException {
if (events != null) {
ArrayList<DataEvent<ZoieIndexable>> indexableList =
new ArrayList<DataEvent<ZoieIndexable>>(events.size());
Iterator<DataEvent<D>> iter = events.iterator();
while (iter.hasNext()) {
try {
DataEvent<D> event = iter.next();
ZoieIndexable indexable =
((ZoieIndexableInterpreter<D>) _interpreter).convertAndInterpret(event.getData());
DataEvent<ZoieIndexable> newEvent =
new DataEvent<ZoieIndexable>(indexable, event.getVersion());
indexableList.add(newEvent);
} catch (Exception e) {
ZoieHealth.setFatal();
log.error(e.getMessage(), e);
}
}
synchronized (this) // this blocks the batch disk loader thread while indexing to RAM
{
int size = indexableList.size();
_ramConsumer.consume(indexableList); // consumer clear the list!
_currentBatchSize += size;
_eventCount += size;
while (_currentBatchSize > _maxBatchSize) {
// check if load manager thread is alive
if (_loadMgrThread == null || !_loadMgrThread.isAlive()) {
ZoieHealth.setFatal();
throw new ZoieException("fatal: indexing thread loader manager has stopped");
}
this.notifyAll(); // wake up load manager thread
try {
this.wait(60000); // 1 min
} catch (InterruptedException e) {
continue;
}
}
this.notifyAll();
}
}
}
@Override
protected synchronized void processBatch() {
RAMSearchIndex<R> readOnlyMemIndex = null;
long now = System.currentTimeMillis();
long duration = now - _lastFlushTime;
int eventCount = 0;
while (_currentBatchSize < _batchSize && !_stop && !_flush && duration < _delay) {
try {
wait(_delay - duration);
} catch (InterruptedException e) {
log.warn(e.getMessage());
}
now = System.currentTimeMillis();
duration = now - _lastFlushTime;
}
_flush = false;
_lastFlushTime = now;
if (_currentBatchSize > 0) {
// change the status and get the read only memory index
// this has to be done in the block synchronized on CopyingBatchIndexDataLoader
_idxMgr.setDiskIndexerStatus(SearchIndexManager.Status.Working);
readOnlyMemIndex = _idxMgr.getCurrentReadOnlyMemoryIndex();
eventCount = _currentBatchSize;
_currentBatchSize = 0;
}
if (eventCount > 0) {
long t1 = System.currentTimeMillis();
try {
if (readOnlyMemIndex != null) {
_luceneDataLoader.loadFromIndex(readOnlyMemIndex);
}
} catch (ZoieException e) {
ZoieHealth.setFatal();
log.error(e.getMessage(), e);
} finally {
long t2 = System.currentTimeMillis();
_eventCount -= eventCount;
int segmentCount = -1;
String segmentInfo = "";
try {
segmentCount = _idxMgr.getDiskSegmentCount();
segmentInfo = _idxMgr.getDiskSegmentInfo();
IndexUpdatedEvent evt = new IndexUpdatedEvent(eventCount, t1, t2, _eventCount);
fireIndexingEvent(evt);
fireNewVersionEvent(readOnlyMemIndex.getVersion());
} catch (IOException e) {
log.error("error getting disk information after disk flush", e);
}
if (log.isInfoEnabled()) {
log.info(
"flushed batch of "
+ eventCount
+ " events to disk indexer, took: "
+ (t2 - t1)
+ " current event count: "
+ _eventCount
+ ", current disk segment count: "
+ segmentCount);
log.info("post-flush segment info: " + segmentInfo);
}
notifyAll();
}
} else {
if (log.isDebugEnabled()) {
log.debug("batch size is 0");
}
}
}
