/*
* 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.admin.indices.alias.put;
import org.elasticsearch.ElasticsearchIllegalArgumentException;
import org.elasticsearch.action.admin.indices.alias.IndicesAliasesRequest;
import org.elasticsearch.action.admin.indices.alias.IndicesAliasesRequest.AliasActions;
import org.elasticsearch.action.admin.indices.alias.IndicesAliasesResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.metadata.AliasAction;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.AcknowledgedRestListener;
import java.util.Map;
import static org.elasticsearch.rest.RestRequest.Method.POST;
import static org.elasticsearch.rest.RestRequest.Method.PUT;
/**
*/
public class RestIndexPutAliasAction extends BaseRestHandler {
@Inject
public RestIndexPutAliasAction(Settings settings, RestController controller, Client client) {
super(settings, controller, client);
controller.registerHandler(PUT, "/{index}/_alias/{name}", this);
controller.registerHandler(PUT, "/_alias/{name}", this);
controller.registerHandler(PUT, "/{index}/_aliases/{name}", this);
controller.registerHandler(PUT, "/_aliases/{name}", this);
controller.registerHandler(PUT, "/{index}/_alias", this);
controller.registerHandler(PUT, "/_alias", this);
controller.registerHandler(POST, "/{index}/_alias/{name}", this);
controller.registerHandler(POST, "/_alias/{name}", this);
controller.registerHandler(POST, "/{index}/_aliases/{name}", this);
controller.registerHandler(POST, "/_aliases/{name}", this);
controller.registerHandler(PUT, "/{index}/_aliases", this);
//we cannot add POST for "/_aliases" because this is the _aliases api already defined in RestIndicesAliasesAction
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) throws Exception {
String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
String alias = request.param("name");
Map<String, Object> filter = null;
String routing = null;
String indexRouting = null;
String searchRouting = null;
if (request.hasContent()) {
try (XContentParser parser = XContentFactory.xContent(request.content()).createParser(request.content())) {
XContentParser.Token token = parser.nextToken();
if (token == null) {
throw new ElasticsearchIllegalArgumentException("No index alias is specified");
}
String currentFieldName = null;
while ((token = parser.nextToken()) != null) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token.isValue()) {
if ("index".equals(currentFieldName)) {
indices = Strings.splitStringByCommaToArray(parser.text());
} else if ("alias".equals(currentFieldName)) {
alias = parser.text();
} else if ("routing".equals(currentFieldName)) {
routing = parser.textOrNull();
} else if ("indexRouting".equals(currentFieldName) || "index-routing".equals(currentFieldName) || "index_routing".equals(currentFieldName)) {
indexRouting = parser.textOrNull();
} else if ("searchRouting".equals(currentFieldName) || "search-routing".equals(currentFieldName) || "search_routing".equals(currentFieldName)) {
searchRouting = parser.textOrNull();
}
} else if (token == XContentParser.Token.START_OBJECT) {
if ("filter".equals(currentFieldName)) {
filter = parser.mapOrdered();
}
}
}
}
}
IndicesAliasesRequest indicesAliasesRequest = new IndicesAliasesRequest();
indicesAliasesRequest.timeout(request.paramAsTime("timeout", indicesAliasesRequest.timeout()));
String[] aliases = new String[]{alias};
IndicesAliasesRequest.AliasActions aliasAction = new AliasActions(AliasAction.Type.ADD, indices, aliases);
indicesAliasesRequest.addAliasAction(aliasAction);
indicesAliasesRequest.masterNodeTimeout(request.paramAsTime("master_timeout", indicesAliasesRequest.masterNodeTimeout()));
if (routing != null) {
aliasAction.routing(routing);
}
if (searchRouting != null) {
aliasAction.searchRouting(searchRouting);
}
if (indexRouting != null) {
aliasAction.indexRouting(indexRouting);
}
if (filter != null) {
aliasAction.filter(filter);
}
client.admin().indices().aliases(indicesAliasesRequest, new AcknowledgedRestListener<IndicesAliasesResponse>(channel));
}
}