org.elasticsearch.action.admin.indices.template.delete.TransportDeleteIndexTemplateAction Maven / Gradle / Ivy

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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */
package org.elasticsearch.action.admin.indices.template.delete;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.action.support.master.AcknowledgedTransportMasterNodeAction;
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.tasks.Task;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;

/**
 * Delete index action.
 */
public class TransportDeleteIndexTemplateAction extends AcknowledgedTransportMasterNodeAction {

    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,
            ThreadPool.Names.SAME
        );
        this.indexTemplateService = indexTemplateService;
    }

    @Override
    protected ClusterBlockException checkBlock(DeleteIndexTemplateRequest request, ClusterState state) {
        return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_WRITE);
    }

    @Override
    protected void masterOperation(
        Task task,
        final DeleteIndexTemplateRequest request,
        final ClusterState state,
        final ActionListener listener
    ) {
        indexTemplateService.removeTemplates(
            new MetadataIndexTemplateService.RemoveRequest(request.name()).masterTimeout(request.masterNodeTimeout()),
            new ActionListener<>() {
                @Override
                public void onResponse(AcknowledgedResponse response) {
                    listener.onResponse(response);
                }

                @Override
                public void onFailure(Exception e) {
                    logger.debug(() -> "failed to delete templates [" + request.name() + "]", e);
                    listener.onFailure(e);
                }
            }
        );
    }
}