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job_proposal.go
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/
job_proposal.go
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package loader
import (
"context"
"strconv"
"github.com/graph-gophers/dataloader"
"github.com/smartcontractkit/chainlink/core/services/chainlink"
"github.com/smartcontractkit/chainlink/core/services/feeds"
)
type jobProposalBatcher struct {
app chainlink.Application
}
func (b *jobProposalBatcher) loadByManagersIDs(_ context.Context, keys dataloader.Keys) []*dataloader.Result {
// Create a map for remembering the order of keys passed in
keyOrder := make(map[string]int, len(keys))
// Collect the keys to search for
var mgrsIDs []int64
for ix, key := range keys {
id, err := strconv.ParseInt(key.String(), 10, 64)
if err == nil {
mgrsIDs = append(mgrsIDs, id)
}
keyOrder[key.String()] = ix
}
jps, err := b.app.GetFeedsService().ListJobProposalsByManagersIDs(mgrsIDs)
if err != nil {
return []*dataloader.Result{{Data: nil, Error: err}}
}
// Generate a map of job proposals to feeds managers IDs
jpsForMgr := map[string][]feeds.JobProposal{}
for _, jp := range jps {
mgrID := strconv.Itoa(int(jp.FeedsManagerID))
jpsForMgr[mgrID] = append(jpsForMgr[mgrID], jp)
}
// Construct the output array of dataloader results
results := make([]*dataloader.Result, len(keys))
for k, ns := range jpsForMgr {
ix, ok := keyOrder[k]
// if found, remove from index lookup map so we know elements were found
if ok {
results[ix] = &dataloader.Result{Data: ns, Error: nil}
delete(keyOrder, k)
}
}
// fill array positions without any job proposals as an empty slice
for _, ix := range keyOrder {
results[ix] = &dataloader.Result{Data: []feeds.JobProposal{}, Error: nil}
}
return results
}