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OpenSearchClient-GetAliasesPointingToIndex.cs
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OpenSearchClient-GetAliasesPointingToIndex.cs
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/* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. 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.
*/
using System.Collections.Generic;
using System.Threading.Tasks;
using OpenSearch.Client.Specification.IndicesApi;
using OpenSearch.Net;
namespace OpenSearch.Client
{
public static class AliasPointingToIndexExtensions
{
/// <summary>
/// Returns a dictionary of aliases that point to the specified index, simplified version of
/// <see cref="IndicesNamespace.GetAlias(IGetAliasRequest)" />..
/// </summary>
/// <param name="index">The index name we want to know aliases of</param>
public static IReadOnlyDictionary<string, AliasDefinition> GetAliasesPointingToIndex(this IOpenSearchClient client, IndexName index)
{
var response = client.Indices.GetAlias(index, a => a.RequestConfiguration(r => r.ThrowExceptions()));
return AliasesPointingToIndex(index, response);
}
/// <summary>
/// Returns a dictionary of aliases that point to the specified index, simplified version of
/// <see cref="IndicesNamespace.GetAlias(IGetAliasRequest)" />..
/// </summary>
/// <param name="index">The index name we want to know aliases of</param>
public static async Task<IReadOnlyDictionary<string, AliasDefinition>> GetAliasesPointingToIndexAsync(this IOpenSearchClient client,
IndexName index
)
{
var response = await client.Indices.GetAliasAsync(index, a => a.RequestConfiguration(r => r.ThrowExceptions())).ConfigureAwait(false);
return AliasesPointingToIndex(index, response);
}
private static IReadOnlyDictionary<string, AliasDefinition> AliasesPointingToIndex(IndexName index, GetAliasResponse response)
{
if (!response.IsValid || !response.Indices.HasAny()) return EmptyReadOnly<string, AliasDefinition>.Dictionary;
return response.Indices[index].Aliases;
}
}
}