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Node Balance Monitoring for STOM (#414)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| package monitoring | ||
|
|
||
| import ( | ||
| "context" | ||
| "math/big" | ||
| "sync" | ||
|
|
||
| commonMonitoring "github.com/smartcontractkit/chainlink-common/pkg/monitoring" | ||
| ) | ||
|
|
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| func NewNodeBalancesExporterFactory(log commonMonitoring.Logger, metrics Metrics) commonMonitoring.ExporterFactory { | ||
| return &nodeBalancesExporterFactory{ | ||
| log, | ||
| metrics, | ||
| } | ||
| } | ||
|
|
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| type nodeBalancesExporterFactory struct { | ||
| log commonMonitoring.Logger | ||
| metrics Metrics | ||
| } | ||
|
|
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| func (f *nodeBalancesExporterFactory) NewExporter(params commonMonitoring.ExporterParams) (commonMonitoring.Exporter, error) { | ||
| return &nodeBalancesExporter{ | ||
| log: f.log, | ||
| metrics: f.metrics, | ||
| chainConfig: params.ChainConfig, | ||
| }, nil | ||
| } | ||
|
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| type nodeBalancesExporter struct { | ||
| log commonMonitoring.Logger | ||
| metrics Metrics | ||
| chainConfig commonMonitoring.ChainConfig | ||
| addrsSet []ContractAddressWithBalance | ||
| addrsMu sync.Mutex | ||
| } | ||
|
|
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| func (e *nodeBalancesExporter) Export(ctx context.Context, data interface{}) { | ||
| balanceEnvelope, isBalanceEnvelope := data.(BalanceEnvelope) | ||
| if !isBalanceEnvelope { | ||
| return | ||
| } | ||
|
|
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| decimals := balanceEnvelope.Decimals | ||
| divisor := new(big.Int).Exp(new(big.Int).SetUint64(10), decimals, nil) // 10^(decimals) | ||
|
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| for _, c := range balanceEnvelope.Contracts { | ||
| balanceAns := new(big.Int).Div(c.Balance, divisor) | ||
|
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| e.metrics.SetBalance( | ||
| toFloat64(balanceAns), | ||
| c.Address.String(), | ||
| c.Name, | ||
| e.chainConfig.GetNetworkID(), | ||
| e.chainConfig.GetNetworkName(), | ||
| e.chainConfig.GetChainID()) | ||
| } | ||
|
|
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| e.addrsMu.Lock() | ||
| defer e.addrsMu.Unlock() | ||
|
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| e.addrsSet = balanceEnvelope.Contracts | ||
|
|
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| } | ||
|
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| func (e *nodeBalancesExporter) Cleanup(_ context.Context) { | ||
| e.addrsMu.Lock() | ||
| defer e.addrsMu.Unlock() | ||
|
|
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| for _, c := range e.addrsSet { | ||
| e.metrics.CleanupBalance(c.Address.String(), c.Name, e.chainConfig.GetNetworkID(), e.chainConfig.GetNetworkName(), e.chainConfig.GetChainID()) | ||
| } | ||
| } | ||
|
|
||
| func toFloat64(bignum *big.Int) float64 { | ||
| val, _ := new(big.Float).SetInt(bignum).Float64() | ||
| return val | ||
| } |
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