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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.action.admin.indices.warmer.delete;
import com.google.common.collect.Lists;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.TransportMasterNodeOperationAction;
import org.elasticsearch.cluster.AckedClusterStateUpdateTask;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.indices.IndexMissingException;
import org.elasticsearch.search.warmer.IndexWarmerMissingException;
import org.elasticsearch.search.warmer.IndexWarmersMetaData;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.Arrays;
import java.util.List;
/**
* Internal Actions executed on the master deleting the warmer from the cluster state metadata.
*
* Note: this is an internal API and should not be used / called by any client code.
*/
public class TransportDeleteWarmerAction extends TransportMasterNodeOperationAction<DeleteWarmerRequest, DeleteWarmerResponse> {
@Inject
public TransportDeleteWarmerAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool, ActionFilters actionFilters) {
super(settings, DeleteWarmerAction.NAME, transportService, clusterService, threadPool, actionFilters);
}
@Override
protected String executor() {
// we go async right away
return ThreadPool.Names.SAME;
}
@Override
protected DeleteWarmerRequest newRequest() {
return new DeleteWarmerRequest();
}
@Override
protected DeleteWarmerResponse newResponse() {
return new DeleteWarmerResponse();
}
@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();
}
});
}
}