org.elasticsearch.action.admin.indices.template.delete.TransportDeleteIndexTemplateAction Maven / Gradle / Ivy
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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.template.delete;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.message.ParameterizedMessage;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.action.support.master.TransportMasterNodeAction;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.metadata.MetaDataIndexTemplateService;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
/**
* Delete index action.
*/
public class TransportDeleteIndexTemplateAction
extends TransportMasterNodeAction {
private static final Logger logger = LogManager.getLogger(TransportDeleteIndexTemplateAction.class);
private final MetaDataIndexTemplateService indexTemplateService;
@Inject
public TransportDeleteIndexTemplateAction(TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, MetaDataIndexTemplateService indexTemplateService,
ActionFilters actionFilters, IndexNameExpressionResolver indexNameExpressionResolver) {
super(DeleteIndexTemplateAction.NAME, transportService, clusterService, threadPool, actionFilters,
DeleteIndexTemplateRequest::new, indexNameExpressionResolver);
this.indexTemplateService = indexTemplateService;
}
@Override
protected String executor() {
// we go async right away
return ThreadPool.Names.SAME;
}
@Override
protected AcknowledgedResponse read(StreamInput in) throws IOException {
return new AcknowledgedResponse(in);
}
@Override
protected ClusterBlockException checkBlock(DeleteIndexTemplateRequest request, ClusterState state) {
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_WRITE);
}
@Override
protected void masterOperation(final DeleteIndexTemplateRequest request, final ClusterState state,
final ActionListener listener) {
indexTemplateService.removeTemplates(
new MetaDataIndexTemplateService
.RemoveRequest(request.name())
.masterTimeout(request.masterNodeTimeout()),
new MetaDataIndexTemplateService.RemoveListener() {
@Override
public void onResponse(MetaDataIndexTemplateService.RemoveResponse response) {
listener.onResponse(new AcknowledgedResponse(response.acknowledged()));
}
@Override
public void onFailure(Exception e) {
logger.debug(() -> new ParameterizedMessage("failed to delete templates [{}]", request.name()), e);
listener.onFailure(e);
}
});
}
}