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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.put;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.search.TransportSearchAction;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.TransportMasterNodeAction;
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.IndexNameExpressionResolver;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.IndexNotFoundException;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.search.warmer.IndexWarmersMetaData;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* Internal Actions executed on the master associating a warmer with a name in the cluster state metadata.
*
* Note: this is an internal API and should not be used / called by any client code.
*/
public class TransportPutWarmerAction extends TransportMasterNodeAction<PutWarmerRequest, PutWarmerResponse> {
private final TransportSearchAction searchAction;
@Inject
public TransportPutWarmerAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool,
TransportSearchAction searchAction, ActionFilters actionFilters, IndexNameExpressionResolver indexNameExpressionResolver) {
super(settings, PutWarmerAction.NAME, transportService, clusterService, threadPool, actionFilters, indexNameExpressionResolver, PutWarmerRequest::new);
this.searchAction = searchAction;
}
@Override
protected String executor() {
return ThreadPool.Names.SAME;
}
@Override
protected PutWarmerResponse newResponse() {
return new PutWarmerResponse();
}
@Override
protected ClusterBlockException checkBlock(PutWarmerRequest request, ClusterState state) {
String[] concreteIndices = indexNameExpressionResolver.concreteIndices(state, request);
ClusterBlockException status = state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA_WRITE, concreteIndices);
if (status != null) {
return status;
}
// PutWarmer executes a SearchQuery before adding the new warmer to the cluster state,
// so we need to check the same block as TransportSearchTypeAction here
return state.blocks().indicesBlockedException(ClusterBlockLevel.READ, concreteIndices);
}
@Override
protected void masterOperation(final PutWarmerRequest request, final ClusterState state, final ActionListener<PutWarmerResponse> listener) {
// first execute the search request, see that its ok...
SearchRequest searchRequest = new SearchRequest(request.searchRequest(), request);
searchAction.execute(searchRequest, new ActionListener<SearchResponse>() {
@Override
public void onResponse(SearchResponse searchResponse) {
if (searchResponse.getFailedShards() > 0) {
listener.onFailure(new ElasticsearchException("search failed with failed shards: " + Arrays.toString(searchResponse.getShardFailures())));
return;
}
clusterService.submitStateUpdateTask("put_warmer [" + request.name() + "]", new AckedClusterStateUpdateTask<PutWarmerResponse>(request, listener) {
@Override
protected PutWarmerResponse newResponse(boolean acknowledged) {
return new PutWarmerResponse(acknowledged);
}
@Override
public void onFailure(String source, Throwable t) {
logger.debug("failed to put warmer [{}] on indices [{}]", t, request.name(), request.searchRequest().indices());
super.onFailure(source, t);
}
@Override
public ClusterState execute(ClusterState currentState) {
MetaData metaData = currentState.metaData();
String[] concreteIndices = indexNameExpressionResolver.concreteIndices(currentState, request.searchRequest().indicesOptions(), request.searchRequest().indices());
IndexWarmersMetaData.SearchSource source = null;
if (request.searchRequest().source() != null) {
source = new IndexWarmersMetaData.SearchSource(request.searchRequest().source());
}
// now replace it on the metadata
MetaData.Builder mdBuilder = MetaData.builder(currentState.metaData());
for (String index : concreteIndices) {
IndexMetaData indexMetaData = metaData.index(index);
if (indexMetaData == null) {
throw new IndexNotFoundException(index);
}
IndexWarmersMetaData warmers = indexMetaData.custom(IndexWarmersMetaData.TYPE);
if (warmers == null) {
logger.info("[{}] putting warmer [{}]", index, request.name());
warmers = new IndexWarmersMetaData(new IndexWarmersMetaData.Entry(request.name(), request.searchRequest().types(), request.searchRequest().requestCache(), source));
} else {
boolean found = false;
List<IndexWarmersMetaData.Entry> entries = new ArrayList<>(warmers.entries().size() + 1);
for (IndexWarmersMetaData.Entry entry : warmers.entries()) {
if (entry.name().equals(request.name())) {
found = true;
entries.add(new IndexWarmersMetaData.Entry(request.name(), request.searchRequest().types(), request.searchRequest().requestCache(), source));
} else {
entries.add(entry);
}
}
if (!found) {
logger.info("[{}] put warmer [{}]", index, request.name());
entries.add(new IndexWarmersMetaData.Entry(request.name(), request.searchRequest().types(), request.searchRequest().requestCache(), source));
} else {
logger.info("[{}] update warmer [{}]", index, request.name());
}
warmers = new IndexWarmersMetaData(entries.toArray(new IndexWarmersMetaData.Entry[entries.size()]));
}
IndexMetaData.Builder indexBuilder = IndexMetaData.builder(indexMetaData).putCustom(IndexWarmersMetaData.TYPE, warmers);
mdBuilder.put(indexBuilder);
}
return ClusterState.builder(currentState).metaData(mdBuilder).build();
}
});
}
@Override
public void onFailure(Throwable e) {
listener.onFailure(e);
}
});
}
}
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