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path: root/core/src/main/java/org/elasticsearch/rest/action/document/RestBulkAction.java
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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.rest.action.document;

import org.elasticsearch.action.bulk.BulkItemResponse;
import org.elasticsearch.action.bulk.BulkRequest;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.bulk.BulkShardRequest;
import org.elasticsearch.action.support.ActiveShardCount;
import org.elasticsearch.client.Requests;
import org.elasticsearch.client.node.NodeClient;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.logging.DeprecationLogger;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.BytesRestResponse;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.RestResponse;
import org.elasticsearch.rest.action.RestBuilderListener;
import org.elasticsearch.search.fetch.subphase.FetchSourceContext;

import java.io.IOException;

import static org.elasticsearch.rest.RestRequest.Method.POST;
import static org.elasticsearch.rest.RestRequest.Method.PUT;
import static org.elasticsearch.rest.RestStatus.OK;

/**
 * <pre>
 * { "index" : { "_index" : "test", "_type" : "type1", "_id" : "1" }
 * { "type1" : { "field1" : "value1" } }
 * { "delete" : { "_index" : "test", "_type" : "type1", "_id" : "2" } }
 * { "create" : { "_index" : "test", "_type" : "type1", "_id" : "1" }
 * { "type1" : { "field1" : "value1" } }
 * </pre>
 */
public class RestBulkAction extends BaseRestHandler {
    private static final DeprecationLogger DEPRECATION_LOGGER =
        new DeprecationLogger(Loggers.getLogger(RestBulkAction.class));

    private final boolean allowExplicitIndex;

    public RestBulkAction(Settings settings, RestController controller) {
        super(settings);

        controller.registerHandler(POST, "/_bulk", this);
        controller.registerHandler(PUT, "/_bulk", this);
        controller.registerHandler(POST, "/{index}/_bulk", this);
        controller.registerHandler(PUT, "/{index}/_bulk", this);
        controller.registerHandler(POST, "/{index}/{type}/_bulk", this);
        controller.registerHandler(PUT, "/{index}/{type}/_bulk", this);

        this.allowExplicitIndex = MULTI_ALLOW_EXPLICIT_INDEX.get(settings);
    }

    @Override
    public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
        BulkRequest bulkRequest = Requests.bulkRequest();
        String defaultIndex = request.param("index");
        String defaultType = request.param("type");
        String defaultRouting = request.param("routing");
        FetchSourceContext defaultFetchSourceContext = FetchSourceContext.parseFromRestRequest(request);
        String fieldsParam = request.param("fields");
        if (fieldsParam != null) {
            DEPRECATION_LOGGER.deprecated("Deprecated field [fields] used, expected [_source] instead");
        }
        String[] defaultFields = fieldsParam != null ? Strings.commaDelimitedListToStringArray(fieldsParam) : null;
        String defaultPipeline = request.param("pipeline");
        String waitForActiveShards = request.param("wait_for_active_shards");
        if (waitForActiveShards != null) {
            bulkRequest.waitForActiveShards(ActiveShardCount.parseString(waitForActiveShards));
        }
        bulkRequest.timeout(request.paramAsTime("timeout", BulkShardRequest.DEFAULT_TIMEOUT));
        bulkRequest.setRefreshPolicy(request.param("refresh"));
        bulkRequest.add(request.content(), defaultIndex, defaultType, defaultRouting, defaultFields,
            defaultFetchSourceContext, defaultPipeline, null, allowExplicitIndex);

        return channel -> client.bulk(bulkRequest, new RestBuilderListener<BulkResponse>(channel) {
            @Override
            public RestResponse buildResponse(BulkResponse response, XContentBuilder builder) throws Exception {
                builder.startObject();
                builder.field(Fields.TOOK, response.getTookInMillis());
                if (response.getIngestTookInMillis() != BulkResponse.NO_INGEST_TOOK) {
                    builder.field(Fields.INGEST_TOOK, response.getIngestTookInMillis());
                }
                builder.field(Fields.ERRORS, response.hasFailures());
                builder.startArray(Fields.ITEMS);
                for (BulkItemResponse itemResponse : response) {
                    itemResponse.toXContent(builder, request);
                }
                builder.endArray();

                builder.endObject();
                return new BytesRestResponse(OK, builder);
            }
        });
    }

    static final class Fields {
        static final String ITEMS = "items";
        static final String ERRORS = "errors";
        static final String TOOK = "took";
        static final String INGEST_TOOK = "ingest_took";
    }
}