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Elasticsearch subproject :server
/*
* 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.create.CreateIndexRequest;
import org.elasticsearch.action.support.ActiveShardCount;
import org.elasticsearch.client.internal.node.NodeClient;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.logging.DeprecationLogger;
import org.elasticsearch.common.xcontent.LoggingDeprecationHandler;
import org.elasticsearch.common.xcontent.XContentHelper;
import org.elasticsearch.core.RestApiVersion;
import org.elasticsearch.index.mapper.MapperService;
import org.elasticsearch.rest.BaseRestHandler;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.action.RestToXContentListener;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static java.util.Collections.singletonMap;
import static org.elasticsearch.rest.RestRequest.Method.PUT;
public class RestCreateIndexAction extends BaseRestHandler {
private static final DeprecationLogger deprecationLogger = DeprecationLogger.getLogger(RestCreateIndexAction.class);
public static final String TYPES_DEPRECATION_MESSAGE = "[types removal] Using include_type_name in create "
+ "index requests is deprecated. The parameter will be removed in the next major version.";
@Override
public List routes() {
return List.of(new Route(PUT, "/{index}"));
}
@Override
public String getName() {
return "create_index_action";
}
@Override
public RestChannelConsumer prepareRequest(final RestRequest request, final NodeClient client) throws IOException {
CreateIndexRequest createIndexRequest;
if (request.getRestApiVersion() == RestApiVersion.V_7) {
createIndexRequest = prepareRequestV7(request);
} else {
createIndexRequest = prepareRequest(request);
}
return channel -> client.admin().indices().create(createIndexRequest, new RestToXContentListener<>(channel));
}
// default scope for testing types in mapping
static CreateIndexRequest prepareRequestV7(RestRequest request) {
CreateIndexRequest createIndexRequest = new CreateIndexRequest(request.param("index"));
if (request.hasParam(INCLUDE_TYPE_NAME_PARAMETER)) {
request.param(INCLUDE_TYPE_NAME_PARAMETER);// just consume, it is always replaced with _doc
deprecationLogger.compatibleCritical("create_index_with_types", TYPES_DEPRECATION_MESSAGE);
}
if (request.hasContent()) {
Map sourceAsMap = XContentHelper.convertToMap(request.requiredContent(), false, request.getXContentType()).v2();
sourceAsMap = prepareMappingsV7(sourceAsMap, request);
createIndexRequest.source(sourceAsMap, LoggingDeprecationHandler.INSTANCE);
}
createIndexRequest.timeout(request.paramAsTime("timeout", createIndexRequest.timeout()));
createIndexRequest.masterNodeTimeout(request.paramAsTime("master_timeout", createIndexRequest.masterNodeTimeout()));
createIndexRequest.waitForActiveShards(ActiveShardCount.parseString(request.param("wait_for_active_shards")));
return createIndexRequest;
}
static Map prepareMappingsV7(Map source, RestRequest request) {
final boolean includeTypeName = request.paramAsBoolean(INCLUDE_TYPE_NAME_PARAMETER, false);
@SuppressWarnings("unchecked")
Map mappings = (Map) source.get("mappings");
if (includeTypeName && mappings != null && mappings.size() == 1) {
Map newSource = new HashMap<>();
newSource.putAll(source); // mappings will be overridden. Aliases, settings stay the same
String typeName = mappings.keySet().iterator().next();
if (Strings.hasText(typeName) == false) {
throw new IllegalArgumentException("name cannot be empty string");
}
@SuppressWarnings("unchecked")
Map typedMappings = (Map) mappings.get(typeName);
// no matter what the type was, replace it with _doc, because the internal representation still uses single type `_doc`.
newSource.put("mappings", Collections.singletonMap(MapperService.SINGLE_MAPPING_NAME, typedMappings));
return newSource;
} else {
return prepareMappings(source);
}
}
static CreateIndexRequest prepareRequest(RestRequest request) {
CreateIndexRequest createIndexRequest = new CreateIndexRequest(request.param("index"));
if (request.hasContent()) {
Map sourceAsMap = XContentHelper.convertToMap(request.requiredContent(), false, request.getXContentType()).v2();
sourceAsMap = prepareMappings(sourceAsMap);
createIndexRequest.source(sourceAsMap, LoggingDeprecationHandler.INSTANCE);
}
createIndexRequest.timeout(request.paramAsTime("timeout", createIndexRequest.timeout()));
createIndexRequest.masterNodeTimeout(request.paramAsTime("master_timeout", createIndexRequest.masterNodeTimeout()));
createIndexRequest.waitForActiveShards(ActiveShardCount.parseString(request.param("wait_for_active_shards")));
return createIndexRequest;
}
static Map prepareMappings(Map source) {
if (source.containsKey("mappings") == false || (source.get("mappings") instanceof Map) == false) {
return source;
}
Map newSource = new HashMap<>(source);
@SuppressWarnings("unchecked")
Map mappings = (Map) source.get("mappings");
if (MapperService.isMappingSourceTyped(MapperService.SINGLE_MAPPING_NAME, mappings)) {
throw new IllegalArgumentException(
"The mapping definition cannot be nested under a type "
+ "["
+ MapperService.SINGLE_MAPPING_NAME
+ "] unless include_type_name is set to true."
);
}
newSource.put("mappings", singletonMap(MapperService.SINGLE_MAPPING_NAME, mappings));
return newSource;
}
}