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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.cat;
import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
import org.elasticsearch.action.admin.indices.alias.get.GetAliasesRequest;
import org.elasticsearch.action.admin.indices.alias.get.GetAliasesResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.metadata.AliasMetaData;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.Table;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.rest.RestChannel;
import org.elasticsearch.rest.RestController;
import org.elasticsearch.rest.RestRequest;
import org.elasticsearch.rest.RestResponse;
import org.elasticsearch.rest.action.support.RestResponseListener;
import org.elasticsearch.rest.action.support.RestTable;
import java.util.List;
import static org.elasticsearch.rest.RestRequest.Method.GET;
/**
*
*/
public class RestAliasAction extends AbstractCatAction {
@Inject
public RestAliasAction(Settings settings, RestController controller, Client client) {
super(settings, controller, client);
controller.registerHandler(GET, "/_cat/aliases", this);
controller.registerHandler(GET, "/_cat/aliases/{alias}", this);
}
@Override
protected void doRequest(final RestRequest request, final RestChannel channel, final Client client) {
final GetAliasesRequest getAliasesRequest = request.hasParam("alias") ?
new GetAliasesRequest(request.param("alias")) :
new GetAliasesRequest();
getAliasesRequest.local(request.paramAsBoolean("local", getAliasesRequest.local()));
client.admin().indices().getAliases(getAliasesRequest, new RestResponseListener<GetAliasesResponse>(channel) {
@Override
public RestResponse buildResponse(GetAliasesResponse response) throws Exception {
Table tab = buildTable(request, response);
return RestTable.buildResponse(tab, channel);
}
});
}
@Override
protected void documentation(StringBuilder sb) {
sb.append("/_cat/aliases\n");
sb.append("/_cat/aliases/{alias}\n");
}
@Override
protected Table getTableWithHeader(RestRequest request) {
final Table table = new Table();
table.startHeaders();
table.addCell("alias", "alias:a;desc:alias name");
table.addCell("index", "alias:i,idx;desc:index alias points to");
table.addCell("filter", "alias:f,fi;desc:filter");
table.addCell("routing.index", "alias:ri,routingIndex;desc:index routing");
table.addCell("routing.search", "alias:rs,routingSearch;desc:search routing");
table.endHeaders();
return table;
}
private Table buildTable(RestRequest request, GetAliasesResponse response) {
Table table = getTableWithHeader(request);
for (ObjectObjectCursor<String, List<AliasMetaData>> cursor : response.getAliases()) {
String indexName = cursor.key;
for (AliasMetaData aliasMetaData : cursor.value) {
table.startRow();
table.addCell(aliasMetaData.alias());
table.addCell(indexName);
table.addCell(aliasMetaData.filteringRequired() ? "*" : "-");
String indexRouting = Strings.hasLength(aliasMetaData.indexRouting()) ? aliasMetaData.indexRouting() : "-";
table.addCell(indexRouting);
String searchRouting = Strings.hasLength(aliasMetaData.searchRouting()) ? aliasMetaData.searchRouting() : "-";
table.addCell(searchRouting);
table.endRow();
}
}
return table;
}
}
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