server/router/services/cluster-service.js

// Copyright (c) 2021-2024 Uber Technologies Inc.
//
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// THE SOFTWARE.

class ClusterService {
  constructor(cacheManager) {
    this.cacheManager = cacheManager;
  }

  fetchClusterCallback(ctx) {
    return async () => {
      const cluster = await ctx.cadence.describeCluster();

      return { ...cluster, membershipInfo: null };
    };
  }

  getCluster(ctx) {
    const { cacheManager, fetchClusterCallback } = this;

    return cacheManager.get(fetchClusterCallback(ctx));
  }
}

module.exports = ClusterService;