private void prepareDeleteIndex(String indexerName) {
// We do not have to take a lock on the indexer, since once in delete state the indexer cannot
// be modified anymore by ordinary users.
boolean canBeDeleted = false;
try {
// Read current situation of record and assure it is still actual
IndexerDefinition indexer = indexerModel.getFreshIndexer(indexerName);
if (indexer.getLifecycleState() == IndexerDefinition.LifecycleState.DELETE_REQUESTED) {
canBeDeleted = true;
String queueSubscriptionId = indexer.getSubscriptionId();
if (queueSubscriptionId != null) {
sepModel.removeSubscription(indexer.getSubscriptionId());
// We leave the subscription ID in the indexer definition FYI
}
if (indexer.getActiveBatchBuildInfo() != null) {
JobClient jobClient = getJobClient();
String jobId = indexer.getActiveBatchBuildInfo().getJobId();
RunningJob job = jobClient.getJob(jobId);
if (job != null) {
job.killJob();
log.info("Kill indexer build job for indexer " + indexerName + ", job ID = " + jobId);
}
// Just to be sure...
jobStatusWatcher.assureWatching(
indexer.getName(), indexer.getActiveBatchBuildInfo().getJobId());
canBeDeleted = false;
}
if (!canBeDeleted) {
indexer =
new IndexerDefinitionBuilder()
.startFrom(indexer)
.lifecycleState(IndexerDefinition.LifecycleState.DELETING)
.build();
indexerModel.updateIndexerInternal(indexer);
}
} else if (indexer.getLifecycleState() == IndexerDefinition.LifecycleState.DELETING) {
// Check if the build job is already finished, if so, allow delete
if (indexer.getActiveBatchBuildInfo() == null) {
canBeDeleted = true;
}
}
} catch (Throwable t) {
log.error("Error preparing deletion of indexer " + indexerName, t);
}
if (canBeDeleted) {
deleteIndexer(indexerName);
}
}
private void unassignSubscription(String indexerName) {
try {
String lock = indexerModel.lockIndexer(indexerName);
try {
// Read current situation of record and assure it is still actual
IndexerDefinition indexer = indexerModel.getFreshIndexer(indexerName);
if (needsSubscriptionIdUnassigned(indexer)) {
sepModel.removeSubscription(indexer.getSubscriptionId());
log.info("Deleted queue subscription for indexer " + indexerName);
indexer = new IndexerDefinitionBuilder().startFrom(indexer).subscriptionId(null).build();
indexerModel.updateIndexerInternal(indexer);
}
} finally {
indexerModel.unlockIndexer(lock);
}
} catch (Throwable t) {
log.error("Error trying to delete the subscription for indexer " + indexerName, t);
}
}
private boolean needsSubscriptionIdUnassigned(IndexerDefinition indexer) {
return indexer.getIncrementalIndexingState() == IncrementalIndexingState.DO_NOT_SUBSCRIBE
&& indexer.getSubscriptionId() != null;
}
private boolean needsSubscriptionIdAssigned(IndexerDefinition indexer) {
return !indexer.getLifecycleState().isDeleteState()
&& indexer.getIncrementalIndexingState() != IncrementalIndexingState.DO_NOT_SUBSCRIBE
&& indexer.getSubscriptionId() == null;
}