org.elasticsearch.action.admin.indices.warmer.delete.TransportDeleteWarmerAction Maven / Gradle / Ivy
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* Licensed to Elastic Search and Shay Banon under one
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* regarding copyright ownership. Elastic Search 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,
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*/
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.master.TransportMasterNodeOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.ProcessedClusterStateUpdateTask;
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.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
/**
* Delete index warmer.
*/
public class TransportDeleteWarmerAction extends TransportMasterNodeOperationAction {
@Inject
public TransportDeleteWarmerAction(Settings settings, TransportService transportService, ClusterService clusterService, ThreadPool threadPool) {
super(settings, transportService, clusterService, threadPool);
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected String transportAction() {
return DeleteWarmerAction.NAME;
}
@Override
protected DeleteWarmerRequest newRequest() {
return new DeleteWarmerRequest();
}
@Override
protected DeleteWarmerResponse newResponse() {
return new DeleteWarmerResponse();
}
@Override
protected void doExecute(DeleteWarmerRequest request, ActionListener listener) {
// update to concrete indices
request.indices(clusterService.state().metaData().concreteIndices(request.indices()));
super.doExecute(request, listener);
}
@Override
protected ClusterBlockException checkBlock(DeleteWarmerRequest request, ClusterState state) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, request.indices());
}
@Override
protected DeleteWarmerResponse masterOperation(final DeleteWarmerRequest request, ClusterState state) throws ElasticSearchException {
final AtomicReference failureRef = new AtomicReference();
final CountDownLatch latch = new CountDownLatch(1);
clusterService.submitStateUpdateTask("delete_warmer [" + request.name() + "]", new ProcessedClusterStateUpdateTask() {
@Override
public ClusterState execute(ClusterState currentState) {
try {
MetaData.Builder mdBuilder = MetaData.builder().metaData(currentState.metaData());
boolean globalFoundAtLeastOne = false;
for (String index : request.indices()) {
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 entries = Lists.newArrayList();
for (IndexWarmersMetaData.Entry entry : warmers.entries()) {
if (request.name() == null || Regex.simpleMatch(request.name(), entry.name())) {
globalFoundAtLeastOne = true;
// don't add it...
} else {
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.newIndexMetaDataBuilder(indexMetaData).putCustom(IndexWarmersMetaData.TYPE, warmers);
mdBuilder.put(indexBuilder);
}
}
}
if (!globalFoundAtLeastOne) {
if (request.name() == null) {
// full match, just return with no failure
return currentState;
}
throw new IndexWarmerMissingException(request.name());
}
if (logger.isInfoEnabled()) {
for (String index : request.indices()) {
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()) {
if (Regex.simpleMatch(request.name(), entry.name())) {
logger.info("[{}] delete warmer [{}]", index, entry.name());
}
}
}
}
}
return ClusterState.builder().state(currentState).metaData(mdBuilder).build();
} catch (Exception ex) {
failureRef.set(ex);
latch.countDown();
return currentState;
}
}
@Override
public void clusterStateProcessed(ClusterState clusterState) {
latch.countDown();
}
});
try {
latch.await();
} catch (InterruptedException e) {
failureRef.set(e);
}
if (failureRef.get() != null) {
if (failureRef.get() instanceof ElasticSearchException) {
throw (ElasticSearchException) failureRef.get();
} else {
throw new ElasticSearchException(failureRef.get().getMessage(), failureRef.get());
}
}
return new DeleteWarmerResponse(true);
}
}