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services.go
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services.go
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package median
import (
"context"
"encoding/json"
"errors"
"fmt"
"time"
libocr "github.com/smartcontractkit/libocr/offchainreporting2plus"
"github.com/smartcontractkit/chainlink-common/pkg/loop"
"github.com/smartcontractkit/chainlink-common/pkg/types"
"github.com/smartcontractkit/chainlink-feeds/median"
"github.com/smartcontractkit/chainlink/v2/core/config/env"
"github.com/smartcontractkit/chainlink/v2/core/logger"
"github.com/smartcontractkit/chainlink/v2/core/services"
"github.com/smartcontractkit/chainlink/v2/core/services/job"
"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/median/config"
"github.com/smartcontractkit/chainlink/v2/core/services/ocrcommon"
"github.com/smartcontractkit/chainlink/v2/core/services/pipeline"
"github.com/smartcontractkit/chainlink/v2/plugins"
)
type MedianConfig interface {
JobPipelineMaxSuccessfulRuns() uint64
JobPipelineResultWriteQueueDepth() uint64
plugins.RegistrarConfig
}
// concrete implementation of MedianConfig
type medianConfig struct {
jobPipelineMaxSuccessfulRuns uint64
jobPipelineResultWriteQueueDepth uint64
plugins.RegistrarConfig
}
func NewMedianConfig(jobPipelineMaxSuccessfulRuns uint64, jobPipelineResultWriteQueueDepth uint64, pluginProcessCfg plugins.RegistrarConfig) MedianConfig {
return &medianConfig{
jobPipelineMaxSuccessfulRuns: jobPipelineMaxSuccessfulRuns,
jobPipelineResultWriteQueueDepth: jobPipelineResultWriteQueueDepth,
RegistrarConfig: pluginProcessCfg,
}
}
func (m *medianConfig) JobPipelineMaxSuccessfulRuns() uint64 {
return m.jobPipelineMaxSuccessfulRuns
}
func (m *medianConfig) JobPipelineResultWriteQueueDepth() uint64 {
return m.jobPipelineResultWriteQueueDepth
}
func NewMedianServices(ctx context.Context,
jb job.Job,
isNewlyCreatedJob bool,
relayer loop.Relayer,
kvStore job.KVStore,
pipelineRunner pipeline.Runner,
lggr logger.Logger,
argsNoPlugin libocr.OCR2OracleArgs,
cfg MedianConfig,
chEnhancedTelem chan ocrcommon.EnhancedTelemetryData,
errorLog loop.ErrorLog,
) (srvs []job.ServiceCtx, err error) {
var pluginConfig config.PluginConfig
err = json.Unmarshal(jb.OCR2OracleSpec.PluginConfig.Bytes(), &pluginConfig)
if err != nil {
return
}
err = config.ValidatePluginConfig(pluginConfig)
if err != nil {
return
}
spec := jb.OCR2OracleSpec
runSaver := ocrcommon.NewResultRunSaver(
pipelineRunner,
lggr,
cfg.JobPipelineMaxSuccessfulRuns(),
cfg.JobPipelineResultWriteQueueDepth(),
)
provider, err := relayer.NewPluginProvider(ctx, types.RelayArgs{
ExternalJobID: jb.ExternalJobID,
JobID: jb.ID,
ContractID: spec.ContractID,
New: isNewlyCreatedJob,
RelayConfig: spec.RelayConfig.Bytes(),
ProviderType: string(spec.PluginType),
}, types.PluginArgs{
TransmitterID: spec.TransmitterID.String,
PluginConfig: spec.PluginConfig.Bytes(),
})
if err != nil {
return
}
medianProvider, ok := provider.(types.MedianProvider)
if !ok {
return nil, errors.New("could not coerce PluginProvider to MedianProvider")
}
srvs = append(srvs, provider)
argsNoPlugin.ContractTransmitter = provider.ContractTransmitter()
argsNoPlugin.ContractConfigTracker = provider.ContractConfigTracker()
argsNoPlugin.OffchainConfigDigester = provider.OffchainConfigDigester()
abort := func() {
if cerr := services.MultiCloser(srvs).Close(); err != nil {
lggr.Errorw("Error closing unused services", "err", cerr)
}
}
dataSource := ocrcommon.NewDataSourceV2(pipelineRunner,
jb,
*jb.PipelineSpec,
lggr,
runSaver,
chEnhancedTelem)
juelsPerFeeCoinSource := ocrcommon.NewInMemoryDataSource(pipelineRunner, jb, pipeline.Spec{
ID: jb.ID,
DotDagSource: pluginConfig.JuelsPerFeeCoinPipeline,
CreatedAt: time.Now(),
}, lggr)
if pluginConfig.JuelsPerFeeCoinCache == nil || (pluginConfig.JuelsPerFeeCoinCache != nil && !pluginConfig.JuelsPerFeeCoinCache.Disable) {
lggr.Infof("juelsPerFeeCoin data source caching is enabled")
juelsPerFeeCoinSourceCache, err2 := ocrcommon.NewInMemoryDataSourceCache(juelsPerFeeCoinSource, kvStore, pluginConfig.JuelsPerFeeCoinCache)
if err2 != nil {
return nil, err2
}
juelsPerFeeCoinSource = juelsPerFeeCoinSourceCache
srvs = append(srvs, juelsPerFeeCoinSourceCache)
}
if cmdName := env.MedianPlugin.Cmd.Get(); cmdName != "" {
// use unique logger names so we can use it to register a loop
medianLggr := lggr.Named("Median").Named(spec.ContractID).Named(spec.GetID())
envVars, err2 := plugins.ParseEnvFile(env.MedianPlugin.Env.Get())
if err2 != nil {
err = fmt.Errorf("failed to parse median env file: %w", err2)
abort()
return
}
cmdFn, telem, err2 := cfg.RegisterLOOP(plugins.CmdConfig{
ID: medianLggr.Name(),
Cmd: cmdName,
Env: envVars,
})
if err2 != nil {
err = fmt.Errorf("failed to register loop: %w", err2)
abort()
return
}
median := loop.NewMedianService(lggr, telem, cmdFn, medianProvider, dataSource, juelsPerFeeCoinSource, errorLog)
argsNoPlugin.ReportingPluginFactory = median
srvs = append(srvs, median)
} else {
argsNoPlugin.ReportingPluginFactory, err = median.NewPlugin(lggr).NewMedianFactory(ctx, medianProvider, dataSource, juelsPerFeeCoinSource, errorLog)
if err != nil {
err = fmt.Errorf("failed to create median factory: %w", err)
abort()
return
}
}
var oracle libocr.Oracle
oracle, err = libocr.NewOracle(argsNoPlugin)
if err != nil {
abort()
return
}
srvs = append(srvs, runSaver, job.NewServiceAdapter(oracle))
if !jb.OCR2OracleSpec.CaptureEATelemetry {
lggr.Infof("Enhanced EA telemetry is disabled for job %s", jb.Name.ValueOrZero())
}
return
}