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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.exists;
import org.elasticsearch.action.exists.ExistsRequest;
import org.elasticsearch.action.exists.ExistsResponse;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.action.support.QuerySourceBuilder;
import org.elasticsearch.client.Client;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestActions;
import org.elasticsearch.rest.action.support.RestBuilderListener;
import static org.elasticsearch.action.exists.ExistsRequest.DEFAULT_MIN_SCORE;
import static org.elasticsearch.rest.RestStatus.NOT_FOUND;
import static org.elasticsearch.rest.RestStatus.OK;
/**
* Action for /_search/exists endpoint
*/
public class RestExistsAction extends BaseRestHandler {
public RestExistsAction(Settings settings, RestController controller, Client client) {
super(settings, controller, client);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
final ExistsRequest existsRequest = new ExistsRequest(Strings.splitStringByCommaToArray(request.param("index")));
existsRequest.indicesOptions(IndicesOptions.fromRequest(request, existsRequest.indicesOptions()));
existsRequest.listenerThreaded(false);
if (request.hasContent()) {
existsRequest.source(request.content(), request.contentUnsafe());
} else {
String source = request.param("source");
if (source != null) {
existsRequest.source(source);
} else {
QuerySourceBuilder querySourceBuilder = RestActions.parseQuerySource(request);
if (querySourceBuilder != null) {
existsRequest.source(querySourceBuilder);
}
}
}
existsRequest.routing(request.param("routing"));
existsRequest.minScore(request.paramAsFloat("min_score", DEFAULT_MIN_SCORE));
existsRequest.types(Strings.splitStringByCommaToArray(request.param("type")));
existsRequest.preference(request.param("preference"));
client.exists(existsRequest, new RestBuilderListener<ExistsResponse>(channel) {
@Override
public RestResponse buildResponse(ExistsResponse response, XContentBuilder builder) throws Exception {
RestStatus status = response.exists() ? OK : NOT_FOUND;
builder.startObject();
builder.field("exists", response.exists());
builder.endObject();
return new BytesRestResponse(status, builder);
}
});
}
}