/*
* Licensed to ElasticSearch and Shay Banon 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.admin.indices.exists.types;
import org.elasticsearch.rest.StringRestResponse;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.exists.types.TypesExistsRequest;
import org.elasticsearch.action.admin.indices.exists.types.TypesExistsResponse;
import org.elasticsearch.action.support.IgnoreIndices;
import org.elasticsearch.client.IndicesAdminClient;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.rest.*;
import static org.elasticsearch.rest.RestRequest.Method.HEAD;
import static org.elasticsearch.rest.RestStatus.NOT_FOUND;
import static org.elasticsearch.rest.RestStatus.OK;
import static org.elasticsearch.rest.action.support.RestActions.splitIndices;
import static org.elasticsearch.rest.action.support.RestActions.splitTypes;
/**
* Rest api for checking if a type exists.
*/
public class RestTypesExistsAction extends BaseRestHandler<IndicesAdminClient> {
@Inject
public RestTypesExistsAction(Settings settings, IndicesAdminClient client, RestController controller) {
super(settings, client);
controller.registerHandler(HEAD, "/{index}/{type}", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel) {
TypesExistsRequest typesExistsRequest = new TypesExistsRequest(
splitIndices(request.param("index")), splitTypes(request.param("type"))
);
typesExistsRequest.listenerThreaded(false);
if (request.hasParam("ignore_indices")) {
typesExistsRequest.ignoreIndices(IgnoreIndices.fromString(request.param("ignore_indices")));
}
client.typesExists(typesExistsRequest, new ActionListener<TypesExistsResponse>() {
@Override
public void onResponse(TypesExistsResponse response) {
try {
if (response.exists()) {
channel.sendResponse(new StringRestResponse(OK));
} else {
channel.sendResponse(new StringRestResponse(NOT_FOUND));
}
} catch (Exception e) {
onFailure(e);
}
}
@Override
public void onFailure(Throwable e) {
try {
channel.sendResponse(new StringRestResponse(ExceptionsHelper.status(e)));
} catch (Exception e1) {
logger.error("Failed to send failure response", e1);
}
}
});
}
}