private boolean innerIndex(Index index) throws IOException {
synchronized (dirtyLock(index.uid())) {
lastWriteNanos = index.startTime();
final long currentVersion;
final boolean deleted;
VersionValue versionValue = versionMap.getUnderLock(index.uid().bytes());
if (versionValue == null) {
currentVersion = loadCurrentVersionFromIndex(index.uid());
deleted = currentVersion == Versions.NOT_FOUND;
} else {
deleted = versionValue.delete();
if (engineConfig.isEnableGcDeletes()
&& versionValue.delete()
&& (engineConfig.getThreadPool().estimatedTimeInMillis() - versionValue.time())
> getGcDeletesInMillis()) {
currentVersion = Versions.NOT_FOUND; // deleted, and GC
} else {
currentVersion = versionValue.version();
}
}
long expectedVersion = index.version();
if (isVersionConflictForWrites(index, currentVersion, deleted, expectedVersion)) {
if (index.origin() != Operation.Origin.RECOVERY) {
throw new VersionConflictEngineException(
shardId,
index.type(),
index.id(),
index
.versionType()
.explainConflictForWrites(currentVersion, expectedVersion, deleted));
}
return false;
}
long updatedVersion = index.versionType().updateVersion(currentVersion, expectedVersion);
final boolean created;
index.updateVersion(updatedVersion);
if (currentVersion == Versions.NOT_FOUND) {
// document does not exists, we can optimize for create
created = true;
index(index, indexWriter);
} else {
created = update(index, versionValue, indexWriter);
}
Translog.Location translogLocation = translog.add(new Translog.Index(index));
versionMap.putUnderLock(
index.uid().bytes(), new VersionValue(updatedVersion, translogLocation));
index.setTranslogLocation(translogLocation);
return created;
}
}
@Override
public boolean index(Index index) {
final boolean created;
try (ReleasableLock lock = readLock.acquire()) {
ensureOpen();
if (index.origin() == Operation.Origin.RECOVERY) {
// Don't throttle recovery operations
created = innerIndex(index);
} else {
try (Releasable r = throttle.acquireThrottle()) {
created = innerIndex(index);
}
}
} catch (OutOfMemoryError | IllegalStateException | IOException t) {
maybeFailEngine("index", t);
throw new IndexFailedEngineException(shardId, index.type(), index.id(), t);
}
return created;
}
