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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.message.ParameterizedMessage;
import org.apache.logging.log4j.util.Supplier;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
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.settings.Settings;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Delete index action.
*/
public class TransportDeleteIndexTemplateAction extends TransportMasterNodeAction<DeleteIndexTemplateRequest, DeleteIndexTemplateResponse> {
private final MetaDataIndexTemplateService indexTemplateService;
@Inject
public TransportDeleteIndexTemplateAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, MetaDataIndexTemplateService indexTemplateService,
ActionFilters actionFilters, IndexNameExpressionResolver indexNameExpressionResolver) {
super(settings, DeleteIndexTemplateAction.NAME, transportService, clusterService, threadPool, actionFilters, indexNameExpressionResolver, DeleteIndexTemplateRequest::new);
this.indexTemplateService = indexTemplateService;
}
@Override
protected String executor() {
// we go async right away
return ThreadPool.Names.SAME;
}
@Override
protected DeleteIndexTemplateResponse newResponse() {
return new DeleteIndexTemplateResponse();
}
@Override
protected ClusterBlockException checkBlock(DeleteIndexTemplateRequest request, ClusterState state) {
return state.blocks().indexBlockedException(ClusterBlockLevel.METADATA_WRITE, "");
}
@Override
protected void masterOperation(final DeleteIndexTemplateRequest request, final ClusterState state, final ActionListener<DeleteIndexTemplateResponse> listener) {
indexTemplateService.removeTemplates(new MetaDataIndexTemplateService.RemoveRequest(request.name()).masterTimeout(request.masterNodeTimeout()), new MetaDataIndexTemplateService.RemoveListener() {
@Override
public void onResponse(MetaDataIndexTemplateService.RemoveResponse response) {
listener.onResponse(new DeleteIndexTemplateResponse(response.acknowledged()));
}
@Override
public void onFailure(Exception e) {
logger.debug((Supplier<?>) () -> new ParameterizedMessage("failed to delete templates [{}]", request.name()), e);
listener.onFailure(e);
}
});
}
}