private void innerDelete(Delete delete) throws IOException {
synchronized (dirtyLock(delete.uid())) {
lastWriteNanos = delete.startTime();
final long currentVersion;
final boolean deleted;
VersionValue versionValue = versionMap.getUnderLock(delete.uid().bytes());
if (versionValue == null) {
currentVersion = loadCurrentVersionFromIndex(delete.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 updatedVersion;
long expectedVersion = delete.version();
if (delete
.versionType()
.isVersionConflictForWrites(currentVersion, expectedVersion, deleted)) {
if (delete.origin() == Operation.Origin.RECOVERY) {
return;
} else {
throw new VersionConflictEngineException(
shardId,
delete.type(),
delete.id(),
delete
.versionType()
.explainConflictForWrites(currentVersion, expectedVersion, deleted));
}
}
updatedVersion = delete.versionType().updateVersion(currentVersion, expectedVersion);
final boolean found;
if (currentVersion == Versions.NOT_FOUND) {
// doc does not exist and no prior deletes
found = false;
} else if (versionValue != null && versionValue.delete()) {
// a "delete on delete", in this case, we still increment the version, log it, and return
// that version
found = false;
} else {
// we deleted a currently existing document
indexWriter.deleteDocuments(delete.uid());
found = true;
}
delete.updateVersion(updatedVersion, found);
Translog.Location translogLocation = translog.add(new Translog.Delete(delete));
versionMap.putUnderLock(
delete.uid().bytes(),
new DeleteVersionValue(
updatedVersion,
engineConfig.getThreadPool().estimatedTimeInMillis(),
translogLocation));
delete.setTranslogLocation(translogLocation);
}
}
