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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.rest.action.admin.indices;

import org.elasticsearch.action.admin.indices.close.CloseIndexRequest;
import org.elasticsearch.action.support.ActiveShardCount;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.logging.DeprecationCategory;
import org.elasticsearch.common.logging.DeprecationLogger;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.action.RestToXContentListener;

import java.io.IOException;
import java.util.List;

import static java.util.Arrays.asList;
import static java.util.Collections.unmodifiableList;
import static org.elasticsearch.rest.RestRequest.Method.POST;

public class RestCloseIndexAction extends BaseRestHandler {

    private static final DeprecationLogger deprecationLogger = DeprecationLogger.getLogger(RestCloseIndexAction.class);

    public static final String WAIT_FOR_ACTIVE_SHARDS_DEFAULT_DEPRECATION_MESSAGE = "the default value for the ?wait_for_active_shards "
        + "parameter will change from '0' to 'index-setting' in version 8; specify '?wait_for_active_shards=index-setting' "
        + "to adopt the future default behaviour, or '?wait_for_active_shards=0' to preserve today's behaviour";

    @Override
    public List routes() {
        return unmodifiableList(asList(new Route(POST, "/_close"), new Route(POST, "/{index}/_close")));
    }

    @Override
    public String getName() {
        return "close_index_action";
    }

    @Override
    public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
        CloseIndexRequest closeIndexRequest = new CloseIndexRequest(Strings.splitStringByCommaToArray(request.param("index")));
        closeIndexRequest.masterNodeTimeout(request.paramAsTime("master_timeout", closeIndexRequest.masterNodeTimeout()));
        closeIndexRequest.timeout(request.paramAsTime("timeout", closeIndexRequest.timeout()));
        closeIndexRequest.indicesOptions(IndicesOptions.fromRequest(request, closeIndexRequest.indicesOptions()));
        String waitForActiveShards = request.param("wait_for_active_shards");
        if (waitForActiveShards == null) {
            deprecationLogger.critical(
                DeprecationCategory.API,
                "close-index-wait_for_active_shards-default",
                WAIT_FOR_ACTIVE_SHARDS_DEFAULT_DEPRECATION_MESSAGE
            );
        } else if ("index-setting".equalsIgnoreCase(waitForActiveShards)) {
            closeIndexRequest.waitForActiveShards(ActiveShardCount.DEFAULT);
        } else {
            closeIndexRequest.waitForActiveShards(ActiveShardCount.parseString(waitForActiveShards));
        }
        return channel -> client.admin().indices().close(closeIndexRequest, new RestToXContentListener<>(channel));
    }

}