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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.suggest;
import org.elasticsearch.ElasticsearchIllegalArgumentException;
import org.elasticsearch.action.suggest.SuggestRequest;
import org.elasticsearch.action.suggest.SuggestResponse;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestBuilderListener;
import org.elasticsearch.search.suggest.Suggest;
import static org.elasticsearch.rest.RestRequest.Method.GET;
import static org.elasticsearch.rest.RestRequest.Method.POST;
import static org.elasticsearch.rest.RestStatus.OK;
import static org.elasticsearch.rest.action.support.RestActions.buildBroadcastShardsHeader;
/**
*
*/
public class RestSuggestAction extends BaseRestHandler {
@Inject
public RestSuggestAction(Settings settings, RestController controller, Client client) {
super(settings, controller, client);
controller.registerHandler(POST, "/_suggest", this);
controller.registerHandler(GET, "/_suggest", this);
controller.registerHandler(POST, "/{index}/_suggest", this);
controller.registerHandler(GET, "/{index}/_suggest", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
SuggestRequest suggestRequest = new SuggestRequest(Strings.splitStringByCommaToArray(request.param("index")));
suggestRequest.indicesOptions(IndicesOptions.fromRequest(request, suggestRequest.indicesOptions()));
suggestRequest.listenerThreaded(false);
if (request.hasContent()) {
suggestRequest.suggest(request.content(), request.contentUnsafe());
} else {
String source = request.param("source");
if (source != null) {
suggestRequest.suggest(source);
} else {
throw new ElasticsearchIllegalArgumentException("no content or source provided to execute suggestion");
}
}
suggestRequest.routing(request.param("routing"));
suggestRequest.preference(request.param("preference"));
client.suggest(suggestRequest, new RestBuilderListener<SuggestResponse>(channel) {
@Override
public RestResponse buildResponse(SuggestResponse response, XContentBuilder builder) throws Exception {
builder.startObject();
buildBroadcastShardsHeader(builder, response);
Suggest suggest = response.getSuggest();
if (suggest != null) {
suggest.toXContent(builder, request);
}
builder.endObject();
return new BytesRestResponse(OK, builder);
}
});
}
}