/*
* 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.get;
import com.carrotsearch.hppc.cursors.ObjectCursor;
import org.elasticsearch.action.admin.cluster.state.ClusterStateRequest;
import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.client.Requests;
import org.elasticsearch.cluster.metadata.AliasMetaData;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.regex.Regex;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.rest.*;
import org.elasticsearch.rest.action.support.RestBuilderListener;
import static org.elasticsearch.common.Strings.isAllOrWildcard;
import static org.elasticsearch.rest.RestRequest.Method.GET;
import static org.elasticsearch.rest.RestStatus.OK;
/**
*/
@Deprecated
public class RestGetIndicesAliasesAction extends BaseRestHandler {
@Inject
public RestGetIndicesAliasesAction(Settings settings, RestController controller, Client client) {
super(settings, controller, client);
controller.registerHandler(GET, "/{index}/_aliases/{name}", this);
controller.registerHandler(GET, "/_aliases/{name}", this);
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel, final Client client) {
final String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
final String[] aliases = Strings.splitStringByCommaToArray(request.param("name"));
ClusterStateRequest clusterStateRequest = Requests.clusterStateRequest()
.routingTable(false)
.nodes(false)
.indices(indices);
clusterStateRequest.local(request.paramAsBoolean("local", clusterStateRequest.local()));
client.admin().cluster().state(clusterStateRequest, new RestBuilderListener<ClusterStateResponse>(channel) {
@Override
public RestResponse buildResponse(ClusterStateResponse response, XContentBuilder builder) throws Exception {
MetaData metaData = response.getState().metaData();
builder.startObject();
final boolean isAllAliasesRequested = isAllOrWildcard(aliases);
for (IndexMetaData indexMetaData : metaData) {
builder.startObject(indexMetaData.getIndex(), XContentBuilder.FieldCaseConversion.NONE);
builder.startObject("aliases");
for (ObjectCursor<AliasMetaData> cursor : indexMetaData.getAliases().values()) {
if (isAllAliasesRequested || Regex.simpleMatch(aliases, cursor.value.alias())) {
AliasMetaData.Builder.toXContent(cursor.value, builder, ToXContent.EMPTY_PARAMS);
}
}
builder.endObject();
builder.endObject();
}
builder.endObject();
return new BytesRestResponse(OK, builder);
}
});
}
}