c5cb4dce4d
Rename the functions that are prefixed with 'New' which connect with Redis by 'Open' to make clear that they perform network operations. Change-Id: I1351e89a642e8e2c2586626646315ad0fb2c6242
56 lines
1.8 KiB
Go
56 lines
1.8 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package live
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import (
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"context"
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"strings"
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"time"
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"github.com/spacemonkeygo/monkit/v3"
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"github.com/zeebo/errs"
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"go.uber.org/zap"
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"storj.io/storj/satellite/accounting"
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)
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var (
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// Error is the default error class for live-accounting.
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Error = errs.Class("live-accounting")
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mon = monkit.Package()
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)
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// Config contains configurable values for the live accounting service.
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type Config struct {
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StorageBackend string `help:"what to use for storing real-time accounting data"`
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BandwidthCacheTTL time.Duration `default:"5m" help:"bandwidth cache key time to live"`
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}
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// OpenCache creates a new accounting.Cache instance using the type specified backend in
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// the provided config.
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//
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// The cache instance may be returned despite of returning the
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// accounting.ErrSystemOrNetError because some backends allows to reconnect on
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// each operation if the connection was not established or it was disconnected,
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// which is what it could happen at the moment to instance it and the cache will
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// work one the backend system will be reachable later on.
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// For this reason, the components that uses the cache should operate despite
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// the backend is not responding successfully although their service is
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// degraded.
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func OpenCache(ctx context.Context, log *zap.Logger, config Config) (accounting.Cache, error) {
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parts := strings.SplitN(config.StorageBackend, ":", 2)
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var backendType string
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if len(parts) == 0 || parts[0] == "" {
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return nil, Error.New("please specify a backend for live accounting")
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}
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backendType = parts[0]
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switch backendType {
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case "redis":
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return openRedisLiveAccounting(ctx, config.StorageBackend)
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default:
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return nil, Error.New("unrecognized live accounting backend specifier %q. Currently only redis is supported", backendType)
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}
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}
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