@Override
protected ClusterBlockException checkBlock(DeleteWarmerRequest request, ClusterState state) {
return state
.blocks()
.indicesBlockedException(
ClusterBlockLevel.METADATA,
clusterService
.state()
.metaData()
.concreteIndices(request.indicesOptions(), request.indices()));
}
@Override
protected void masterOperation(
final DeleteWarmerRequest request,
final ClusterState state,
final ActionListener<DeleteWarmerResponse> listener)
throws ElasticsearchException {
final String[] concreteIndices =
clusterService
.state()
.metaData()
.concreteIndices(request.indicesOptions(), request.indices());
clusterService.submitStateUpdateTask(
"delete_warmer [" + Arrays.toString(request.names()) + "]",
new AckedClusterStateUpdateTask<DeleteWarmerResponse>(request, listener) {
@Override
protected DeleteWarmerResponse newResponse(boolean acknowledged) {
return new DeleteWarmerResponse(acknowledged);
}
@Override
public void onFailure(String source, Throwable t) {
logger.debug(
"failed to delete warmer [{}] on indices [{}]",
t,
Arrays.toString(request.names()),
concreteIndices);
super.onFailure(source, t);
}
@Override
public ClusterState execute(ClusterState currentState) {
MetaData.Builder mdBuilder = MetaData.builder(currentState.metaData());
boolean globalFoundAtLeastOne = false;
for (String index : concreteIndices) {
IndexMetaData indexMetaData = currentState.metaData().index(index);
if (indexMetaData == null) {
throw new IndexMissingException(new Index(index));
}
IndexWarmersMetaData warmers = indexMetaData.custom(IndexWarmersMetaData.TYPE);
if (warmers != null) {
List<IndexWarmersMetaData.Entry> entries = Lists.newArrayList();
for (IndexWarmersMetaData.Entry entry : warmers.entries()) {
boolean keepWarmer = true;
for (String warmer : request.names()) {
if (Regex.simpleMatch(warmer, entry.name()) || warmer.equals("_all")) {
globalFoundAtLeastOne = true;
keepWarmer = false;
// don't add it...
break;
}
}
if (keepWarmer) {
entries.add(entry);
}
}
// a change, update it...
if (entries.size() != warmers.entries().size()) {
warmers =
new IndexWarmersMetaData(
entries.toArray(new IndexWarmersMetaData.Entry[entries.size()]));
IndexMetaData.Builder indexBuilder =
IndexMetaData.builder(indexMetaData)
.putCustom(IndexWarmersMetaData.TYPE, warmers);
mdBuilder.put(indexBuilder);
}
}
}
if (!globalFoundAtLeastOne) {
throw new IndexWarmerMissingException(request.names());
}
if (logger.isInfoEnabled()) {
for (String index : concreteIndices) {
IndexMetaData indexMetaData = currentState.metaData().index(index);
if (indexMetaData == null) {
throw new IndexMissingException(new Index(index));
}
IndexWarmersMetaData warmers = indexMetaData.custom(IndexWarmersMetaData.TYPE);
if (warmers != null) {
for (IndexWarmersMetaData.Entry entry : warmers.entries()) {
for (String warmer : request.names()) {
if (Regex.simpleMatch(warmer, entry.name()) || warmer.equals("_all")) {
logger.info("[{}] delete warmer [{}]", index, entry.name());
}
}
}
}
}
}
return ClusterState.builder(currentState).metaData(mdBuilder).build();
}
});
}