org.elasticsearch.action.admin.indices.delete.TransportDeleteIndexAction Maven / Gradle / Ivy
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* file to you under the Apache License, Version 2.0 (the
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* http://www.apache.org/licenses/LICENSE-2.0
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package org.elasticsearch.action.admin.indices.delete;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.ElasticSearchIllegalArgumentException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.mapping.delete.DeleteMappingRequest;
import org.elasticsearch.action.admin.indices.mapping.delete.DeleteMappingResponse;
import org.elasticsearch.action.admin.indices.mapping.delete.TransportDeleteMappingAction;
import org.elasticsearch.action.support.master.TransportMasterNodeOperationAction;
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.MetaDataDeleteIndexService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.percolator.PercolatorService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
/**
* Delete index action.
*/
public class TransportDeleteIndexAction extends TransportMasterNodeOperationAction {
private final MetaDataDeleteIndexService deleteIndexService;
private final TransportDeleteMappingAction deleteMappingAction;
private final boolean disableDeleteAllIndices;
@Inject
public TransportDeleteIndexAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, MetaDataDeleteIndexService deleteIndexService, TransportDeleteMappingAction deleteMappingAction) {
super(settings, transportService, clusterService, threadPool);
this.deleteIndexService = deleteIndexService;
this.deleteMappingAction = deleteMappingAction;
this.disableDeleteAllIndices = settings.getAsBoolean("action.disable_delete_all_indices", false);
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected String transportAction() {
return DeleteIndexAction.NAME;
}
@Override
protected DeleteIndexRequest newRequest() {
return new DeleteIndexRequest();
}
@Override
protected DeleteIndexResponse newResponse() {
return new DeleteIndexResponse();
}
@Override
protected void doExecute(DeleteIndexRequest request, ActionListener listener) {
ClusterState state = clusterService.state();
String[] indicesOrAliases = request.indices();
request.indices(state.metaData().concreteIndices(request.indices()));
if (disableDeleteAllIndices) {
// simple check on the original indices with "all" default parameter
if (indicesOrAliases == null || indicesOrAliases.length == 0 || (indicesOrAliases.length == 1 && indicesOrAliases[0].equals("_all"))) {
throw new ElasticSearchIllegalArgumentException("deleting all indices is disabled");
}
// if we end up matching on all indices, check, if its a wildcard parameter, or a "-something" structure
if (request.indices().length == state.metaData().concreteAllIndices().length && indicesOrAliases.length > 0) {
boolean hasRegex = false;
for (String indexOrAlias : indicesOrAliases) {
if (Regex.isSimpleMatchPattern(indexOrAlias)) {
hasRegex = true;
}
}
if (indicesOrAliases.length > 0 && (hasRegex || indicesOrAliases[0].charAt(0) == '-')) {
throw new ElasticSearchIllegalArgumentException("deleting all indices is disabled");
}
}
}
super.doExecute(request, listener);
}
@Override
protected ClusterBlockException checkBlock(DeleteIndexRequest request, ClusterState state) {
return state.blocks().indicesBlockedException(ClusterBlockLevel.METADATA, request.indices());
}
@Override
protected DeleteIndexResponse masterOperation(DeleteIndexRequest request, final ClusterState state) throws ElasticSearchException {
if (request.indices().length == 0) {
return new DeleteIndexResponse(true);
}
final AtomicReference responseRef = new AtomicReference();
final AtomicReference failureRef = new AtomicReference();
final CountDownLatch latch = new CountDownLatch(request.indices().length);
for (final String index : request.indices()) {
deleteIndexService.deleteIndex(new MetaDataDeleteIndexService.Request(index).timeout(request.timeout()), new MetaDataDeleteIndexService.Listener() {
@Override
public void onResponse(MetaDataDeleteIndexService.Response response) {
responseRef.set(new DeleteIndexResponse(response.acknowledged()));
// YACK, but here we go: If this index is also percolated, make sure to delete all percolated queries from the _percolator index
IndexMetaData percolatorMetaData = state.metaData().index(PercolatorService.INDEX_NAME);
if (percolatorMetaData != null && percolatorMetaData.mappings().containsKey(index)) {
deleteMappingAction.execute(new DeleteMappingRequest(PercolatorService.INDEX_NAME).type(index), new ActionListener() {
@Override
public void onResponse(DeleteMappingResponse deleteMappingResponse) {
latch.countDown();
}
@Override
public void onFailure(Throwable e) {
latch.countDown();
}
});
} else {
latch.countDown();
}
}
@Override
public void onFailure(Throwable t) {
failureRef.set(t);
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 responseRef.get();
}
}