MERC-6389: Add support for stream jobs to the feeds service. (#15412)

* Add support for stream jobs to the feeds service.

* Add ORM method FindJobIDByStreamID and cover approving stream specs with a test.

* Fix changeset.

.changeset/thin-cats-try.md

@@ -0,0 +1,5 @@
+---
+"chainlink": minor
+---
+
+Add support for Mercury LLO streams to feeds service. #added

core/services/feeds/service.go

@@ -19,9 +19,11 @@ import (
 	"github.com/smartcontractkit/chainlink-common/pkg/sqlutil"
 
 	ccip "github.com/smartcontractkit/chainlink/v2/core/capabilities/ccip/validate"
+	"github.com/smartcontractkit/chainlink/v2/core/services/streams"
 	"github.com/smartcontractkit/chainlink/v2/plugins"
 
 	pb "github.com/smartcontractkit/chainlink-protos/orchestrator/feedsmanager"
+
 	"github.com/smartcontractkit/chainlink/v2/core/chains/evm/types"
 	"github.com/smartcontractkit/chainlink/v2/core/chains/evm/utils/big"
 	"github.com/smartcontractkit/chainlink/v2/core/chains/legacyevm"
@@ -859,6 +861,13 @@ func (s *service) ApproveSpec(ctx context.Context, id int64, force bool) error {
 				if txerr != nil && !errors.Is(txerr, sql.ErrNoRows) {
 					return fmt.Errorf("failed while checking for existing ccip job: %w", txerr)
 				}
+			case job.Stream:
+				existingJobID, txerr = tx.jobORM.FindJobIDByStreamID(ctx, *j.StreamID)
+				// Return an error if the repository errors. If there is a not found
+				// error we want to continue with approving the job.
+				if txerr != nil && !errors.Is(txerr, sql.ErrNoRows) {
+					return fmt.Errorf("failed while checking for existing stream job: %w", txerr)
+				}
 			default:
 				return errors.Errorf("unsupported job type when approving job proposal specs: %s", j.Type)
 			}
@@ -1249,6 +1258,8 @@ func (s *service) generateJob(ctx context.Context, spec string) (*job.Job, error
 		js, err = workflows.ValidatedWorkflowJobSpec(ctx, spec)
 	case job.CCIP:
 		js, err = ccip.ValidatedCCIPSpec(spec)
+	case job.Stream:
+		js, err = streams.ValidatedStreamSpec(spec)
 	default:
 		return nil, errors.Errorf("unknown job type: %s", jobType)
 	}