org.elasticsearch.action.admin.indices.mapping.get.TransportGetFieldMappingsAction Maven / Gradle / Ivy

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Elasticsearch subproject :server

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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.mapping.get;

import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.HandledTransportAction;
import org.elasticsearch.client.internal.node.NodeClient;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.transport.TransportService;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReferenceArray;

import static java.util.Collections.emptyMap;
import static java.util.Collections.unmodifiableMap;

public class TransportGetFieldMappingsAction extends HandledTransportAction {

    private final ClusterService clusterService;
    private final IndexNameExpressionResolver indexNameExpressionResolver;
    private final NodeClient client;

    @Inject
    public TransportGetFieldMappingsAction(
        TransportService transportService,
        ClusterService clusterService,
        ActionFilters actionFilters,
        IndexNameExpressionResolver indexNameExpressionResolver,
        NodeClient client
    ) {
        super(GetFieldMappingsAction.NAME, transportService, actionFilters, GetFieldMappingsRequest::new);
        this.clusterService = clusterService;
        this.indexNameExpressionResolver = indexNameExpressionResolver;
        this.client = client;
    }

    @Override
    protected void doExecute(Task task, GetFieldMappingsRequest request, final ActionListener listener) {
        ClusterState clusterState = clusterService.state();
        String[] concreteIndices = indexNameExpressionResolver.concreteIndexNames(clusterState, request);
        final AtomicInteger indexCounter = new AtomicInteger();
        final AtomicInteger completionCounter = new AtomicInteger(concreteIndices.length);
        final AtomicReferenceArray