replace graphConnector with interface (#2932)

Replaces the operations graphConnector reference
with an interface.  Restore and Backups have
separate, unique interfaces.

<!-- PR description-->

---

#### Does this PR need a docs update or release note?

- [x] ⛔ No

#### Type of change

- [x] 🌻 Feature

#### Issue(s)

* #2825

#### Test Plan

- [x] ⚡ Unit test
- [x] 💚 E2E

src/cmd/factory/impl/common.go

@@ -96,7 +96,7 @@ func generateAndRestoreItems(
 
 	print.Infof(ctx, "Generating %d %s items in %s\n", howMany, cat, Destination)
 
-	return gc.RestoreDataCollections(ctx, version.Backup, acct, sel, dest, opts, dataColls, errs)
+	return gc.ConsumeRestoreCollections(ctx, version.Backup, acct, sel, dest, opts, dataColls, errs)
 }
 
 // ------------------------------------------------------------------------------------------

src/internal/connector/data_collections.go

@@ -27,19 +27,23 @@ import (
 // Data Collections
 // ---------------------------------------------------------------------------
 
-// DataCollections utility function to launch backup operations for exchange and
+// ProduceBackupCollections generates a slice of data.BackupCollections for the service
-// onedrive. metadataCols contains any collections with metadata files that may
+// specified in the selectors.
-// be useful for the current backup. Metadata can include things like delta
+// The metadata field can include things like delta tokens or the previous backup's
-// tokens or the previous backup's folder hierarchy. The absence of metadataCols
+// folder hierarchy. The absence of metadata causes the collection creation to ignore
-// results in all data being pulled.
+// prior history (ie, incrementals) and run a full backup.
-func (gc *GraphConnector) DataCollections(
+func (gc *GraphConnector) ProduceBackupCollections(
 	ctx context.Context,
+	ownerID, ownerName string,
 	sels selectors.Selector,
 	metadata []data.RestoreCollection,
 	ctrlOpts control.Options,
 	errs *fault.Bus,
 ) ([]data.BackupCollection, map[string]map[string]struct{}, error) {
-	ctx, end := diagnostics.Span(ctx, "gc:dataCollections", diagnostics.Index("service", sels.Service.String()))
+	ctx, end := diagnostics.Span(
+		ctx,
+		"gc:produceBackupCollections",
+		diagnostics.Index("service", sels.Service.String()))
 	defer end()
 
 	err := verifyBackupInputs(sels, gc.GetSiteIDs())
@@ -188,10 +192,10 @@ func checkServiceEnabled(
 	return true, nil
 }
 
-// RestoreDataCollections restores data from the specified collections
+// ConsumeRestoreCollections restores data from the specified collections
 // into M365 using the GraphAPI.
 // SideEffect: gc.status is updated at the completion of operation
-func (gc *GraphConnector) RestoreDataCollections(
+func (gc *GraphConnector) ConsumeRestoreCollections(
 	ctx context.Context,
 	backupVersion int,
 	acct account.Account,

src/internal/connector/data_collections_test.go

@@ -129,8 +129,8 @@ func (suite *ConnectorDataCollectionIntegrationSuite) TestExchangeDataCollection
 				}
 			}
 
-			status := connector.AwaitStatus()
+			status := connector.Wait()
-			assert.NotZero(t, status.Metrics.Successes)
+			assert.NotZero(t, status.Successes)
 			t.Log(status.String())
 		})
 	}
@@ -205,8 +205,9 @@ func (suite *ConnectorDataCollectionIntegrationSuite) TestDataCollections_invali
 		suite.Run(test.name, func() {
 			t := suite.T()
 
-			collections, excludes, err := connector.DataCollections(
+			collections, excludes, err := connector.ProduceBackupCollections(
 				ctx,
+				owners[0], owners[0],
 				test.getSelector(t),
 				nil,
 				control.Options{},
@@ -286,8 +287,8 @@ func (suite *ConnectorDataCollectionIntegrationSuite) TestSharePointDataCollecti
 				}
 			}
 
-			status := connector.AwaitStatus()
+			status := connector.Wait()
-			assert.NotZero(t, status.Metrics.Successes)
+			assert.NotZero(t, status.Successes)
 			t.Log(status.String())
 		})
 	}
@@ -336,8 +337,9 @@ func (suite *ConnectorCreateSharePointCollectionIntegrationSuite) TestCreateShar
 	sel := selectors.NewSharePointBackup(siteIDs)
 	sel.Include(sel.LibraryFolders([]string{"foo"}, selectors.PrefixMatch()))
 
-	cols, excludes, err := gc.DataCollections(
+	cols, excludes, err := gc.ProduceBackupCollections(
 		ctx,
+		siteIDs[0], siteIDs[0],
 		sel.Selector,
 		nil,
 		control.Options{},
@@ -374,8 +376,9 @@ func (suite *ConnectorCreateSharePointCollectionIntegrationSuite) TestCreateShar
 	sel := selectors.NewSharePointBackup(siteIDs)
 	sel.Include(sel.Lists(selectors.Any(), selectors.PrefixMatch()))
 
-	cols, excludes, err := gc.DataCollections(
+	cols, excludes, err := gc.ProduceBackupCollections(
 		ctx,
+		siteIDs[0], siteIDs[0],
 		sel.Selector,
 		nil,
 		control.Options{},

src/internal/connector/graph_connector.go

@@ -22,7 +22,9 @@ import (
 	"github.com/alcionai/corso/src/internal/connector/graph"
 	"github.com/alcionai/corso/src/internal/connector/sharepoint"
 	"github.com/alcionai/corso/src/internal/connector/support"
+	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/diagnostics"
+	"github.com/alcionai/corso/src/internal/operations/inject"
 	"github.com/alcionai/corso/src/pkg/account"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/filters"
@@ -32,6 +34,12 @@ import (
 // Graph Connector
 // ---------------------------------------------------------------------------
 
+// must comply with BackupProducer and RestoreConsumer
+var (
+	_ inject.BackupProducer  = &GraphConnector{}
+	_ inject.RestoreConsumer = &GraphConnector{}
+)
+
 // GraphConnector is a struct used to wrap the GraphServiceClient and
 // GraphRequestAdapter from the msgraph-sdk-go. Additional fields are for
 // bookkeeping and interfacing with other component.
@@ -223,7 +231,7 @@ func (gc *GraphConnector) UnionSiteIDsAndWebURLs(
 }
 
 // AwaitStatus waits for all gc tasks to complete and then returns status
-func (gc *GraphConnector) AwaitStatus() *support.ConnectorOperationStatus {
+func (gc *GraphConnector) Wait() *data.CollectionStats {
 	defer func() {
 		if gc.region != nil {
 			gc.region.End()
@@ -233,12 +241,18 @@ func (gc *GraphConnector) AwaitStatus() *support.ConnectorOperationStatus {
 	gc.wg.Wait()
 
 	// clean up and reset statefulness
-	status := gc.status
+	dcs := data.CollectionStats{
+		Folders:   gc.status.Folders,
+		Objects:   gc.status.Metrics.Objects,
+		Successes: gc.status.Metrics.Successes,
+		Bytes:     gc.status.Metrics.Bytes,
+		Details:   gc.status.String(),
+	}
 
 	gc.wg = &sync.WaitGroup{}
 	gc.status = support.ConnectorOperationStatus{}
 
-	return &status
+	return &dcs
 }
 
 // UpdateStatus is used by gc initiated tasks to indicate completion

src/internal/connector/graph_connector_disconnected_test.go

@@ -111,17 +111,16 @@ func (suite *DisconnectedGraphConnectorSuite) TestGraphConnector_Status() {
 	go statusTestTask(&gc, 4, 1, 1)
 	go statusTestTask(&gc, 4, 1, 1)
 
-	status := gc.AwaitStatus()
+	stats := gc.Wait()
-
 	t := suite.T()
 
 	assert.NotEmpty(t, gc.PrintableStatus())
 	// Expect 8 objects
-	assert.Equal(t, 8, status.Metrics.Objects)
+	assert.Equal(t, 8, stats.Objects)
 	// Expect 2 success
-	assert.Equal(t, 2, status.Metrics.Successes)
+	assert.Equal(t, 2, stats.Successes)
 	// Expect 2 folders
-	assert.Equal(t, 2, status.Folders)
+	assert.Equal(t, 2, stats.Folders)
 }
 
 func (suite *DisconnectedGraphConnectorSuite) TestVerifyBackupInputs_allServices() {

src/internal/connector/graph_connector_test.go

@@ -135,7 +135,7 @@ func (suite *GraphConnectorUnitSuite) TestUnionSiteIDsAndWebURLs() {
 	}
 }
 
-func (suite *GraphConnectorUnitSuite) TestGraphConnector_AwaitStatus() {
+func (suite *GraphConnectorUnitSuite) TestGraphConnector_Wait() {
 	ctx, flush := tester.NewContext()
 	defer flush()
 
@@ -156,14 +156,14 @@ func (suite *GraphConnectorUnitSuite) TestGraphConnector_AwaitStatus() {
 	gc.wg.Add(1)
 	gc.UpdateStatus(status)
 
-	result := gc.AwaitStatus()
+	result := gc.Wait()
 	require.NotNil(t, result)
 	assert.Nil(t, gc.region, "region")
 	assert.Empty(t, gc.status, "status")
 	assert.Equal(t, 1, result.Folders)
-	assert.Equal(t, 2, result.Metrics.Objects)
+	assert.Equal(t, 2, result.Objects)
-	assert.Equal(t, 3, result.Metrics.Successes)
+	assert.Equal(t, 3, result.Successes)
-	assert.Equal(t, int64(4), result.Metrics.Bytes)
+	assert.Equal(t, int64(4), result.Bytes)
 }
 
 // ---------------------------------------------------------------------------
@@ -241,7 +241,7 @@ func (suite *GraphConnectorIntegrationSuite) TestRestoreFailsBadService() {
 		}
 	)
 
-	deets, err := suite.connector.RestoreDataCollections(
+	deets, err := suite.connector.ConsumeRestoreCollections(
 		ctx,
 		version.Backup,
 		acct,
@@ -256,10 +256,10 @@ func (suite *GraphConnectorIntegrationSuite) TestRestoreFailsBadService() {
 	assert.Error(t, err, clues.ToCore(err))
 	assert.NotNil(t, deets)
 
-	status := suite.connector.AwaitStatus()
+	status := suite.connector.Wait()
-	assert.Equal(t, 0, status.Metrics.Objects)
+	assert.Equal(t, 0, status.Objects)
 	assert.Equal(t, 0, status.Folders)
-	assert.Equal(t, 0, status.Metrics.Successes)
+	assert.Equal(t, 0, status.Successes)
 }
 
 func (suite *GraphConnectorIntegrationSuite) TestEmptyCollections() {
@@ -320,7 +320,7 @@ func (suite *GraphConnectorIntegrationSuite) TestEmptyCollections() {
 			ctx, flush := tester.NewContext()
 			defer flush()
 
-			deets, err := suite.connector.RestoreDataCollections(
+			deets, err := suite.connector.ConsumeRestoreCollections(
 				ctx,
 				version.Backup,
 				suite.acct,
@@ -335,10 +335,10 @@ func (suite *GraphConnectorIntegrationSuite) TestEmptyCollections() {
 			require.NoError(t, err, clues.ToCore(err))
 			assert.NotNil(t, deets)
 
-			stats := suite.connector.AwaitStatus()
+			stats := suite.connector.Wait()
-			assert.Zero(t, stats.Metrics.Objects)
+			assert.Zero(t, stats.Objects)
 			assert.Zero(t, stats.Folders)
-			assert.Zero(t, stats.Metrics.Successes)
+			assert.Zero(t, stats.Successes)
 		})
 	}
 }
@@ -400,7 +400,7 @@ func runRestore(
 
 	restoreGC := loadConnector(ctx, t, graph.HTTPClient(graph.NoTimeout()), config.resource)
 	restoreSel := getSelectorWith(t, config.service, config.resourceOwners, true)
-	deets, err := restoreGC.RestoreDataCollections(
+	deets, err := restoreGC.ConsumeRestoreCollections(
 		ctx,
 		backupVersion,
 		config.acct,
@@ -412,11 +412,11 @@ func runRestore(
 	require.NoError(t, err, clues.ToCore(err))
 	assert.NotNil(t, deets)
 
-	status := restoreGC.AwaitStatus()
+	status := restoreGC.Wait()
 	runTime := time.Since(start)
 
-	assert.Equal(t, numRestoreItems, status.Metrics.Objects, "restored status.Metrics.Objects")
+	assert.Equal(t, numRestoreItems, status.Objects, "restored status.Objects")
-	assert.Equal(t, numRestoreItems, status.Metrics.Successes, "restored status.Metrics.Successes")
+	assert.Equal(t, numRestoreItems, status.Successes, "restored status.Successes")
 	assert.Len(
 		t,
 		deets.Entries,
@@ -457,8 +457,10 @@ func runBackupAndCompare(
 	t.Logf("Selective backup of %s\n", backupSel)
 
 	start := time.Now()
-	dcs, excludes, err := backupGC.DataCollections(
+	dcs, excludes, err := backupGC.ProduceBackupCollections(
 		ctx,
+		backupSel.DiscreteOwner,
+		backupSel.DiscreteOwner,
 		backupSel,
 		nil,
 		config.opts,
@@ -480,12 +482,12 @@ func runBackupAndCompare(
 		config.dest,
 		config.opts.RestorePermissions)
 
-	status := backupGC.AwaitStatus()
+	status := backupGC.Wait()
 
-	assert.Equalf(t, totalItems+skipped, status.Metrics.Objects,
+	assert.Equalf(t, totalItems+skipped, status.Objects,
-		"backup status.Metrics.Objects; wanted %d items + %d skipped", totalItems, skipped)
+		"backup status.Objects; wanted %d items + %d skipped", totalItems, skipped)
-	assert.Equalf(t, totalItems+skipped, status.Metrics.Successes,
+	assert.Equalf(t, totalItems+skipped, status.Successes,
-		"backup status.Metrics.Successes; wanted %d items + %d skipped", totalItems, skipped)
+		"backup status.Successes; wanted %d items + %d skipped", totalItems, skipped)
 }
 
 func runRestoreBackupTest(
@@ -964,7 +966,7 @@ func (suite *GraphConnectorIntegrationSuite) TestMultiFolderBackupDifferentNames
 				)
 
 				restoreGC := loadConnector(ctx, t, graph.HTTPClient(graph.NoTimeout()), test.resource)
-				deets, err := restoreGC.RestoreDataCollections(
+				deets, err := restoreGC.ConsumeRestoreCollections(
 					ctx,
 					version.Backup,
 					suite.acct,
@@ -979,12 +981,12 @@ func (suite *GraphConnectorIntegrationSuite) TestMultiFolderBackupDifferentNames
 				require.NoError(t, err, clues.ToCore(err))
 				require.NotNil(t, deets)
 
-				status := restoreGC.AwaitStatus()
+				status := restoreGC.Wait()
 				// Always just 1 because it's just 1 collection.
-				assert.Equal(t, totalItems, status.Metrics.Objects, "status.Metrics.Objects")
+				assert.Equal(t, totalItems, status.Objects, "status.Objects")
-				assert.Equal(t, totalItems, status.Metrics.Successes, "status.Metrics.Successes")
+				assert.Equal(t, totalItems, status.Successes, "status.Successes")
-				assert.Len(
+				assert.Equal(
-					t, deets.Entries, totalItems,
+					t, totalItems, len(deets.Entries),
 					"details entries contains same item count as total successful items restored")
 
 				t.Log("Restore complete")
@@ -996,8 +998,10 @@ func (suite *GraphConnectorIntegrationSuite) TestMultiFolderBackupDifferentNames
 			backupSel := backupSelectorForExpected(t, test.service, expectedDests)
 			t.Log("Selective backup of", backupSel)
 
-			dcs, excludes, err := backupGC.DataCollections(
+			dcs, excludes, err := backupGC.ProduceBackupCollections(
 				ctx,
+				backupSel.DiscreteOwner,
+				backupSel.DiscreteOwner,
 				backupSel,
 				nil,
 				control.Options{
@@ -1023,9 +1027,9 @@ func (suite *GraphConnectorIntegrationSuite) TestMultiFolderBackupDifferentNames
 				control.RestoreDestination{},
 				true)
 
-			status := backupGC.AwaitStatus()
+			status := backupGC.Wait()
-			assert.Equal(t, allItems+skipped, status.Metrics.Objects, "status.Metrics.Objects")
+			assert.Equal(t, allItems+skipped, status.Objects, "status.Objects")
-			assert.Equal(t, allItems+skipped, status.Metrics.Successes, "status.Metrics.Successes")
+			assert.Equal(t, allItems+skipped, status.Successes, "status.Successes")
 		})
 	}
 }
@@ -1147,8 +1151,10 @@ func (suite *GraphConnectorIntegrationSuite) TestBackup_CreatesPrefixCollections
 				start     = time.Now()
 			)
 
-			dcs, excludes, err := backupGC.DataCollections(
+			dcs, excludes, err := backupGC.ProduceBackupCollections(
 				ctx,
+				backupSel.DiscreteOwner,
+				backupSel.DiscreteOwner,
 				backupSel,
 				nil,
 				control.Options{
@@ -1191,7 +1197,7 @@ func (suite *GraphConnectorIntegrationSuite) TestBackup_CreatesPrefixCollections
 
 			assert.ElementsMatch(t, test.categories, foundCategories)
 
-			backupGC.AwaitStatus()
+			backupGC.Wait()
 
 			assert.NoError(t, errs.Failure())
 		})

src/internal/connector/mockconnector/mock_data_connector.go

@@ -0,0 +1,55 @@
+package mockconnector
+
+import (
+	"context"
+
+	"github.com/alcionai/corso/src/internal/data"
+	"github.com/alcionai/corso/src/pkg/account"
+	"github.com/alcionai/corso/src/pkg/backup/details"
+	"github.com/alcionai/corso/src/pkg/control"
+	"github.com/alcionai/corso/src/pkg/fault"
+	"github.com/alcionai/corso/src/pkg/selectors"
+)
+
+type GraphConnector struct {
+	Collections []data.BackupCollection
+	Exclude     map[string]map[string]struct{}
+
+	Deets *details.Details
+
+	Err error
+
+	Stats data.CollectionStats
+}
+
+func (gc GraphConnector) ProduceBackupCollections(
+	_ context.Context,
+	_, _ string,
+	_ selectors.Selector,
+	_ []data.RestoreCollection,
+	_ control.Options,
+	_ *fault.Bus,
+) (
+	[]data.BackupCollection,
+	map[string]map[string]struct{},
+	error,
+) {
+	return gc.Collections, gc.Exclude, gc.Err
+}
+
+func (gc GraphConnector) Wait() *data.CollectionStats {
+	return &gc.Stats
+}
+
+func (gc GraphConnector) ConsumeRestoreCollections(
+	_ context.Context,
+	_ int,
+	_ account.Account,
+	_ selectors.Selector,
+	_ control.RestoreDestination,
+	_ control.Options,
+	_ []data.RestoreCollection,
+	_ *fault.Bus,
+) (*details.Details, error) {
+	return gc.Deets, gc.Err
+}

src/internal/data/metrics.go

@@ -0,0 +1,17 @@
+package data
+
+type CollectionStats struct {
+	Folders,
+	Objects,
+	Successes int
+	Bytes   int64
+	Details string
+}
+
+func (cs CollectionStats) IsZero() bool {
+	return cs.Folders+cs.Objects+cs.Successes+int(cs.Bytes) == 0
+}
+
+func (cs CollectionStats) String() string {
+	return cs.Details
+}

src/internal/kopia/wrapper.go

@@ -93,6 +93,13 @@ func NewWrapper(c *conn) (*Wrapper, error) {
 	return &Wrapper{c}, nil
 }
 
+// FIXME: Circular references.
+// must comply with restore producer and backup consumer
+// var (
+// _ inject.BackupConsumer  = &Wrapper{}
+// _ inject.RestoreProducer = &Wrapper{}
+// )
+
 type Wrapper struct {
 	c *conn
 }
@@ -124,13 +131,13 @@ type PrevRefs struct {
 	Location path.Path
 }
 
-// BackupCollections takes a set of collections and creates a kopia snapshot
+// ConsumeBackupCollections takes a set of collections and creates a kopia snapshot
 // with the data that they contain. previousSnapshots is used for incremental
 // backups and should represent the base snapshot from which metadata is sourced
 // from as well as any incomplete snapshot checkpoints that may contain more
 // recent data than the base snapshot. The absence of previousSnapshots causes a
 // complete backup of all data.
-func (w Wrapper) BackupCollections(
+func (w Wrapper) ConsumeBackupCollections(
 	ctx context.Context,
 	previousSnapshots []IncrementalBase,
 	collections []data.BackupCollection,
@@ -143,7 +150,7 @@ func (w Wrapper) BackupCollections(
 		return nil, nil, nil, clues.Stack(errNotConnected).WithClues(ctx)
 	}
 
-	ctx, end := diagnostics.Span(ctx, "kopia:backupCollections")
+	ctx, end := diagnostics.Span(ctx, "kopia:consumeBackupCollections")
 	defer end()
 
 	if len(collections) == 0 && len(globalExcludeSet) == 0 {
@@ -382,21 +389,21 @@ type ByteCounter interface {
 	Count(numBytes int64)
 }
 
-// RestoreMultipleItems looks up all paths- assuming each is an item declaration,
+// ProduceRestoreCollections looks up all paths- assuming each is an item declaration,
 // not a directory- in the snapshot with id snapshotID. The path should be the
 // full path of the item from the root.  Returns the results as a slice of single-
 // item DataCollections, where the DataCollection.FullPath() matches the path.
 // If the item does not exist in kopia or is not a file an error is returned.
 // The UUID of the returned DataStreams will be the name of the kopia file the
 // data is sourced from.
-func (w Wrapper) RestoreMultipleItems(
+func (w Wrapper) ProduceRestoreCollections(
 	ctx context.Context,
 	snapshotID string,
 	paths []path.Path,
 	bcounter ByteCounter,
 	errs *fault.Bus,
 ) ([]data.RestoreCollection, error) {
-	ctx, end := diagnostics.Span(ctx, "kopia:restoreMultipleItems")
+	ctx, end := diagnostics.Span(ctx, "kopia:produceRestoreCollections")
 	defer end()
 
 	if len(paths) == 0 {

src/internal/kopia/wrapper_test.go

@@ -276,7 +276,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections() {
 		suite.Run(test.name, func() {
 			t := suite.T()
 
-			stats, deets, _, err := suite.w.BackupCollections(
+			stats, deets, _, err := suite.w.ConsumeBackupCollections(
 				suite.ctx,
 				prevSnaps,
 				collections,
@@ -423,7 +423,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections_NoDetailsForMeta() {
 			t := suite.T()
 			collections := test.cols()
 
-			stats, deets, prevShortRefs, err := suite.w.BackupCollections(
+			stats, deets, prevShortRefs, err := suite.w.ConsumeBackupCollections(
 				suite.ctx,
 				prevSnaps,
 				collections,
@@ -525,7 +525,7 @@ func (suite *KopiaIntegrationSuite) TestRestoreAfterCompressionChange() {
 	fp2, err := suite.storePath2.Append(dc2.Names[0], true)
 	require.NoError(t, err, clues.ToCore(err))
 
-	stats, _, _, err := w.BackupCollections(
+	stats, _, _, err := w.ConsumeBackupCollections(
 		ctx,
 		nil,
 		[]data.BackupCollection{dc1, dc2},
@@ -543,7 +543,7 @@ func (suite *KopiaIntegrationSuite) TestRestoreAfterCompressionChange() {
 		fp2.String(): dc2.Data[0],
 	}
 
-	result, err := w.RestoreMultipleItems(
+	result, err := w.ProduceRestoreCollections(
 		ctx,
 		string(stats.SnapshotID),
 		[]path.Path{
@@ -644,7 +644,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections_ReaderError() {
 		},
 	}
 
-	stats, deets, _, err := suite.w.BackupCollections(
+	stats, deets, _, err := suite.w.ConsumeBackupCollections(
 		suite.ctx,
 		nil,
 		collections,
@@ -666,7 +666,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollections_ReaderError() {
 
 	ic := i64counter{}
 
-	_, err = suite.w.RestoreMultipleItems(
+	_, err = suite.w.ProduceRestoreCollections(
 		suite.ctx,
 		string(stats.SnapshotID),
 		[]path.Path{failedPath},
@@ -706,7 +706,7 @@ func (suite *KopiaIntegrationSuite) TestBackupCollectionsHandlesNoCollections()
 			ctx, flush := tester.NewContext()
 			defer flush()
 
-			s, d, _, err := suite.w.BackupCollections(
+			s, d, _, err := suite.w.ConsumeBackupCollections(
 				ctx,
 				nil,
 				test.collections,
@@ -866,7 +866,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) SetupTest() {
 		tags[k] = ""
 	}
 
-	stats, deets, _, err := suite.w.BackupCollections(
+	stats, deets, _, err := suite.w.ConsumeBackupCollections(
 		suite.ctx,
 		nil,
 		collections,
@@ -1018,7 +1018,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestBackupExcludeItem() {
 				}
 			}
 
-			stats, _, _, err := suite.w.BackupCollections(
+			stats, _, _, err := suite.w.ConsumeBackupCollections(
 				suite.ctx,
 				[]IncrementalBase{
 					{
@@ -1045,7 +1045,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestBackupExcludeItem() {
 
 			ic := i64counter{}
 
-			_, err = suite.w.RestoreMultipleItems(
+			_, err = suite.w.ProduceRestoreCollections(
 				suite.ctx,
 				string(stats.SnapshotID),
 				[]path.Path{
@@ -1058,7 +1058,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestBackupExcludeItem() {
 	}
 }
 
-func (suite *KopiaSimpleRepoIntegrationSuite) TestRestoreMultipleItems() {
+func (suite *KopiaSimpleRepoIntegrationSuite) TestProduceRestoreCollections() {
 	doesntExist, err := path.Build(
 		testTenant,
 		testUser,
@@ -1148,7 +1148,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestRestoreMultipleItems() {
 
 			ic := i64counter{}
 
-			result, err := suite.w.RestoreMultipleItems(
+			result, err := suite.w.ProduceRestoreCollections(
 				suite.ctx,
 				string(suite.snapshotID),
 				test.inputPaths,
@@ -1167,7 +1167,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestRestoreMultipleItems() {
 	}
 }
 
-func (suite *KopiaSimpleRepoIntegrationSuite) TestRestoreMultipleItems_Errors() {
+func (suite *KopiaSimpleRepoIntegrationSuite) TestProduceRestoreCollections_Errors() {
 	itemPath, err := suite.testPath1.Append(testFileName, true)
 	require.NoError(suite.T(), err, clues.ToCore(err))
 
@@ -1197,7 +1197,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestRestoreMultipleItems_Errors()
 		suite.Run(test.name, func() {
 			t := suite.T()
 
-			c, err := suite.w.RestoreMultipleItems(
+			c, err := suite.w.ProduceRestoreCollections(
 				suite.ctx,
 				test.snapshotID,
 				test.paths,
@@ -1219,7 +1219,7 @@ func (suite *KopiaSimpleRepoIntegrationSuite) TestDeleteSnapshot() {
 	itemPath := suite.files[suite.testPath1.String()][0].itemPath
 	ic := i64counter{}
 
-	c, err := suite.w.RestoreMultipleItems(
+	c, err := suite.w.ProduceRestoreCollections(
 		suite.ctx,
 		string(suite.snapshotID),
 		[]path.Path{itemPath},

src/internal/operations/backup.go

@@ -9,14 +9,13 @@ import (
 
 	"github.com/alcionai/corso/src/internal/common"
 	"github.com/alcionai/corso/src/internal/common/crash"
-	"github.com/alcionai/corso/src/internal/connector"
-	"github.com/alcionai/corso/src/internal/connector/support"
 	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/diagnostics"
 	"github.com/alcionai/corso/src/internal/events"
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/model"
 	"github.com/alcionai/corso/src/internal/observe"
+	"github.com/alcionai/corso/src/internal/operations/inject"
 	"github.com/alcionai/corso/src/internal/stats"
 	"github.com/alcionai/corso/src/internal/streamstore"
 	"github.com/alcionai/corso/src/pkg/account"
@@ -42,6 +41,7 @@ type BackupOperation struct {
 	Version   string             `json:"version"`
 
 	account account.Account
+	bp      inject.BackupProducer
 
 	// when true, this allows for incremental backups instead of full data pulls
 	incremental bool
@@ -60,20 +60,21 @@ func NewBackupOperation(
 	opts control.Options,
 	kw *kopia.Wrapper,
 	sw *store.Wrapper,
-	gc *connector.GraphConnector,
+	bp inject.BackupProducer,
 	acct account.Account,
 	selector selectors.Selector,
 	ownerName string,
 	bus events.Eventer,
 ) (BackupOperation, error) {
 	op := BackupOperation{
-		operation:         newOperation(opts, bus, kw, sw, gc),
+		operation:         newOperation(opts, bus, kw, sw),
 		ResourceOwner:     selector.DiscreteOwner,
 		ResourceOwnerName: ownerName,
 		Selectors:         selector,
 		Version:           "v0",
 		account:           acct,
 		incremental:       useIncrementalBackup(selector, opts),
+		bp:                bp,
 	}
 
 	if len(ownerName) == 0 {
@@ -92,6 +93,10 @@ func (op BackupOperation) validate() error {
 		return clues.New("backup requires a resource owner")
 	}
 
+	if op.bp == nil {
+		return clues.New("missing backup producer")
+	}
+
 	return op.operation.validate()
 }
 
@@ -101,7 +106,7 @@ func (op BackupOperation) validate() error {
 // get populated asynchronously.
 type backupStats struct {
 	k             *kopia.BackupStats
-	gc            *support.ConnectorOperationStatus
+	gc            *data.CollectionStats
 	resourceCount int
 }
 
@@ -243,14 +248,22 @@ func (op *BackupOperation) do(
 		return nil, clues.Wrap(err, "producing manifests and metadata")
 	}
 
-	cs, excludes, err := produceBackupDataCollections(ctx, op.gc, op.Selectors, mdColls, op.Options, op.Errors)
+	cs, excludes, err := produceBackupDataCollections(
+		ctx,
+		op.bp,
+		op.ResourceOwner,
+		op.ResourceOwnerName,
+		op.Selectors,
+		mdColls,
+		op.Options,
+		op.Errors)
 	if err != nil {
 		return nil, clues.Wrap(err, "producing backup data collections")
 	}
 
 	ctx = clues.Add(ctx, "coll_count", len(cs))
 
-	writeStats, deets, toMerge, err := consumeBackupDataCollections(
+	writeStats, deets, toMerge, err := consumeBackupCollections(
 		ctx,
 		op.kopia,
 		op.account.ID(),
@@ -279,9 +292,9 @@ func (op *BackupOperation) do(
 		return nil, clues.Wrap(err, "merging details")
 	}
 
-	opStats.gc = op.gc.AwaitStatus()
+	opStats.gc = op.bp.Wait()
 
-	logger.Ctx(ctx).Debug(op.gc.PrintableStatus())
+	logger.Ctx(ctx).Debug(opStats.gc)
 
 	return deets, nil
 }
@@ -312,7 +325,8 @@ func useIncrementalBackup(sel selectors.Selector, opts control.Options) bool {
 // calls the producer to generate collections of data to backup
 func produceBackupDataCollections(
 	ctx context.Context,
-	gc *connector.GraphConnector,
+	bp inject.BackupProducer,
+	ownerID, ownerName string,
 	sel selectors.Selector,
 	metadata []data.RestoreCollection,
 	ctrlOpts control.Options,
@@ -325,25 +339,13 @@ func produceBackupDataCollections(
 		closer()
 	}()
 
-	return gc.DataCollections(ctx, sel, metadata, ctrlOpts, errs)
+	return bp.ProduceBackupCollections(ctx, ownerID, ownerName, sel, metadata, ctrlOpts, errs)
 }
 
 // ---------------------------------------------------------------------------
 // Consumer funcs
 // ---------------------------------------------------------------------------
 
-type backuper interface {
-	BackupCollections(
-		ctx context.Context,
-		bases []kopia.IncrementalBase,
-		cs []data.BackupCollection,
-		excluded map[string]map[string]struct{},
-		tags map[string]string,
-		buildTreeWithBase bool,
-		errs *fault.Bus,
-	) (*kopia.BackupStats, *details.Builder, map[string]kopia.PrevRefs, error)
-}
-
 func selectorToReasons(sel selectors.Selector) []kopia.Reason {
 	service := sel.PathService()
 	reasons := []kopia.Reason{}
@@ -389,9 +391,9 @@ func builderFromReason(ctx context.Context, tenant string, r kopia.Reason) (*pat
 }
 
 // calls kopia to backup the collections of data
-func consumeBackupDataCollections(
+func consumeBackupCollections(
 	ctx context.Context,
-	bu backuper,
+	bc inject.BackupConsumer,
 	tenantID string,
 	reasons []kopia.Reason,
 	mans []*kopia.ManifestEntry,
@@ -465,7 +467,7 @@ func consumeBackupDataCollections(
 			"base_backup_id", mbID)
 	}
 
-	kopiaStats, deets, itemsSourcedFromBase, err := bu.BackupCollections(
+	kopiaStats, deets, itemsSourcedFromBase, err := bc.ConsumeBackupCollections(
 		ctx,
 		bases,
 		cs,
@@ -663,11 +665,11 @@ func (op *BackupOperation) persistResults(
 		return clues.New("backup population never completed")
 	}
 
-	if op.Status != Failed && opStats.gc.Metrics.Successes == 0 {
+	if op.Status != Failed && opStats.gc.IsZero() {
 		op.Status = NoData
 	}
 
-	op.Results.ItemsRead = opStats.gc.Metrics.Successes
+	op.Results.ItemsRead = opStats.gc.Successes
 
 	return op.Errors.Failure()
 }

src/internal/operations/backup_integration_test.go

@@ -30,6 +30,7 @@ import (
 	evmock "github.com/alcionai/corso/src/internal/events/mock"
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/model"
+	"github.com/alcionai/corso/src/internal/operations/inject"
 	"github.com/alcionai/corso/src/internal/tester"
 	"github.com/alcionai/corso/src/internal/version"
 	"github.com/alcionai/corso/src/pkg/account"
@@ -288,7 +289,7 @@ func checkMetadataFilesExist(
 				pathsByRef[dir.ShortRef()] = append(pathsByRef[dir.ShortRef()], fName)
 			}
 
-			cols, err := kw.RestoreMultipleItems(ctx, bup.SnapshotID, paths, nil, fault.New(true))
+			cols, err := kw.ProduceRestoreCollections(ctx, bup.SnapshotID, paths, nil, fault.New(true))
 			assert.NoError(t, err, clues.ToCore(err))
 
 			for _, col := range cols {
@@ -383,7 +384,7 @@ func generateContainerOfItems(
 		dest,
 		collections)
 
-	deets, err := gc.RestoreDataCollections(
+	deets, err := gc.ConsumeRestoreCollections(
 		ctx,
 		backupVersion,
 		acct,
@@ -394,7 +395,9 @@ func generateContainerOfItems(
 		fault.New(true))
 	require.NoError(t, err, clues.ToCore(err))
 
-	gc.AwaitStatus()
+	// have to wait here, both to ensure the process
+	// finishes, and also to clean up the gc status
+	gc.Wait()
 
 	return deets
 }
@@ -539,7 +542,7 @@ func (suite *BackupOpIntegrationSuite) SetupSuite() {
 func (suite *BackupOpIntegrationSuite) TestNewBackupOperation() {
 	kw := &kopia.Wrapper{}
 	sw := &store.Wrapper{}
-	gc := &connector.GraphConnector{}
+	gc := &mockconnector.GraphConnector{}
 	acct := tester.NewM365Account(suite.T())
 
 	table := []struct {
@@ -547,7 +550,7 @@ func (suite *BackupOpIntegrationSuite) TestNewBackupOperation() {
 		opts     control.Options
 		kw       *kopia.Wrapper
 		sw       *store.Wrapper
-		gc       *connector.GraphConnector
+		bp       inject.BackupProducer
 		acct     account.Account
 		targets  []string
 		errCheck assert.ErrorAssertionFunc
@@ -555,7 +558,7 @@ func (suite *BackupOpIntegrationSuite) TestNewBackupOperation() {
 		{"good", control.Options{}, kw, sw, gc, acct, nil, assert.NoError},
 		{"missing kopia", control.Options{}, nil, sw, gc, acct, nil, assert.Error},
 		{"missing modelstore", control.Options{}, kw, nil, gc, acct, nil, assert.Error},
-		{"missing graphconnector", control.Options{}, kw, sw, nil, acct, nil, assert.Error},
+		{"missing backup producer", control.Options{}, kw, sw, nil, acct, nil, assert.Error},
 	}
 	for _, test := range table {
 		suite.Run(test.name, func() {
@@ -567,7 +570,7 @@ func (suite *BackupOpIntegrationSuite) TestNewBackupOperation() {
 				test.opts,
 				test.kw,
 				test.sw,
-				test.gc,
+				test.bp,
 				test.acct,
 				selectors.Selector{DiscreteOwner: "test"},
 				"test-name",

src/internal/operations/backup_test.go

@@ -14,8 +14,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
 
-	"github.com/alcionai/corso/src/internal/connector"
+	"github.com/alcionai/corso/src/internal/connector/mockconnector"
-	"github.com/alcionai/corso/src/internal/connector/support"
 	"github.com/alcionai/corso/src/internal/data"
 	evmock "github.com/alcionai/corso/src/internal/events/mock"
 	"github.com/alcionai/corso/src/internal/kopia"
@@ -38,7 +37,7 @@ import (
 
 // ----- restore producer
 
-type mockRestorer struct {
+type mockRestoreProducer struct {
 	gotPaths  []path.Path
 	colls     []data.RestoreCollection
 	collsByID map[string][]data.RestoreCollection // snapshotID: []RestoreCollection
@@ -48,7 +47,7 @@ type mockRestorer struct {
 
 type restoreFunc func(id string, ps []path.Path) ([]data.RestoreCollection, error)
 
-func (mr *mockRestorer) buildRestoreFunc(
+func (mr *mockRestoreProducer) buildRestoreFunc(
 	t *testing.T,
 	oid string,
 	ops []path.Path,
@@ -61,7 +60,7 @@ func (mr *mockRestorer) buildRestoreFunc(
 	}
 }
 
-func (mr *mockRestorer) RestoreMultipleItems(
+func (mr *mockRestoreProducer) ProduceRestoreCollections(
 	ctx context.Context,
 	snapshotID string,
 	paths []path.Path,
@@ -85,9 +84,9 @@ func checkPaths(t *testing.T, expected, got []path.Path) {
 	assert.ElementsMatch(t, expected, got)
 }
 
-// ----- backup producer
+// ----- backup consumer
 
-type mockBackuper struct {
+type mockBackupConsumer struct {
 	checkFunc func(
 		bases []kopia.IncrementalBase,
 		cs []data.BackupCollection,
@@ -95,7 +94,7 @@ type mockBackuper struct {
 		buildTreeWithBase bool)
 }
 
-func (mbu mockBackuper) BackupCollections(
+func (mbu mockBackupConsumer) ConsumeBackupCollections(
 	ctx context.Context,
 	bases []kopia.IncrementalBase,
 	cs []data.BackupCollection,
@@ -360,7 +359,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_PersistResults() {
 	var (
 		kw   = &kopia.Wrapper{}
 		sw   = &store.Wrapper{}
-		gc   = &connector.GraphConnector{}
+		gc   = &mockconnector.GraphConnector{}
 		acct = account.Account{}
 		now  = time.Now()
 	)
@@ -381,9 +380,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_PersistResults() {
 					TotalHashedBytes:   1,
 					TotalUploadedBytes: 1,
 				},
-				gc: &support.ConnectorOperationStatus{
+				gc: &data.CollectionStats{Successes: 1},
-					Metrics: support.CollectionMetrics{Successes: 1},
-				},
 			},
 		},
 		{
@@ -392,7 +389,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_PersistResults() {
 			fail:         assert.AnError,
 			stats: backupStats{
 				k:  &kopia.BackupStats{},
-				gc: &support.ConnectorOperationStatus{},
+				gc: &data.CollectionStats{},
 			},
 		},
 		{
@@ -400,7 +397,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_PersistResults() {
 			expectErr:    assert.NoError,
 			stats: backupStats{
 				k:  &kopia.BackupStats{},
-				gc: &support.ConnectorOperationStatus{},
+				gc: &data.CollectionStats{},
 			},
 		},
 	}
@@ -427,7 +424,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_PersistResults() {
 			test.expectErr(t, op.persistResults(now, &test.stats))
 
 			assert.Equal(t, test.expectStatus.String(), op.Status.String(), "status")
-			assert.Equal(t, test.stats.gc.Metrics.Successes, op.Results.ItemsRead, "items read")
+			assert.Equal(t, test.stats.gc.Successes, op.Results.ItemsRead, "items read")
 			assert.Equal(t, test.stats.k.TotalFileCount, op.Results.ItemsWritten, "items written")
 			assert.Equal(t, test.stats.k.TotalHashedBytes, op.Results.BytesRead, "bytes read")
 			assert.Equal(t, test.stats.k.TotalUploadedBytes, op.Results.BytesUploaded, "bytes written")
@@ -564,7 +561,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_ConsumeBackupDataCollections
 			ctx, flush := tester.NewContext()
 			defer flush()
 
-			mbu := &mockBackuper{
+			mbu := &mockBackupConsumer{
 				checkFunc: func(
 					bases []kopia.IncrementalBase,
 					cs []data.BackupCollection,
@@ -576,7 +573,7 @@ func (suite *BackupOpUnitSuite) TestBackupOperation_ConsumeBackupDataCollections
 			}
 
 			//nolint:errcheck
-			consumeBackupDataCollections(
+			consumeBackupCollections(
 				ctx,
 				mbu,
 				tenant,

src/internal/operations/inject/inject.go

@@ -0,0 +1,66 @@
+package inject
+
+import (
+	"context"
+
+	"github.com/alcionai/corso/src/internal/data"
+	"github.com/alcionai/corso/src/internal/kopia"
+	"github.com/alcionai/corso/src/pkg/account"
+	"github.com/alcionai/corso/src/pkg/backup/details"
+	"github.com/alcionai/corso/src/pkg/control"
+	"github.com/alcionai/corso/src/pkg/fault"
+	"github.com/alcionai/corso/src/pkg/path"
+	"github.com/alcionai/corso/src/pkg/selectors"
+)
+
+type (
+	BackupProducer interface {
+		ProduceBackupCollections(
+			ctx context.Context,
+			ownerID, ownerName string,
+			sels selectors.Selector,
+			metadata []data.RestoreCollection,
+			ctrlOpts control.Options,
+			errs *fault.Bus,
+		) ([]data.BackupCollection, map[string]map[string]struct{}, error)
+
+		Wait() *data.CollectionStats
+	}
+
+	BackupConsumer interface {
+		ConsumeBackupCollections(
+			ctx context.Context,
+			bases []kopia.IncrementalBase,
+			cs []data.BackupCollection,
+			excluded map[string]map[string]struct{},
+			tags map[string]string,
+			buildTreeWithBase bool,
+			errs *fault.Bus,
+		) (*kopia.BackupStats, *details.Builder, map[string]kopia.PrevRefs, error)
+	}
+
+	RestoreProducer interface {
+		ProduceRestoreCollections(
+			ctx context.Context,
+			snapshotID string,
+			paths []path.Path,
+			bc kopia.ByteCounter,
+			errs *fault.Bus,
+		) ([]data.RestoreCollection, error)
+	}
+
+	RestoreConsumer interface {
+		ConsumeRestoreCollections(
+			ctx context.Context,
+			backupVersion int,
+			acct account.Account,
+			selector selectors.Selector,
+			dest control.RestoreDestination,
+			opts control.Options,
+			dcs []data.RestoreCollection,
+			errs *fault.Bus,
+		) (*details.Details, error)
+
+		Wait() *data.CollectionStats
+	}
+)

src/internal/operations/manifests.go

@@ -11,6 +11,7 @@ import (
 	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/model"
+	"github.com/alcionai/corso/src/internal/operations/inject"
 	"github.com/alcionai/corso/src/pkg/backup"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/logger"
@@ -27,7 +28,7 @@ type manifestFetcher interface {
 
 type manifestRestorer interface {
 	manifestFetcher
-	restorer
+	inject.RestoreProducer
 }
 
 type getBackuper interface {
@@ -173,7 +174,7 @@ func verifyDistinctBases(ctx context.Context, mans []*kopia.ManifestEntry) error
 // collectMetadata retrieves all metadata files associated with the manifest.
 func collectMetadata(
 	ctx context.Context,
-	r restorer,
+	r inject.RestoreProducer,
 	man *kopia.ManifestEntry,
 	fileNames []string,
 	tenantID string,
@@ -201,7 +202,7 @@ func collectMetadata(
 		}
 	}
 
-	dcs, err := r.RestoreMultipleItems(ctx, string(man.ID), paths, nil, errs)
+	dcs, err := r.ProduceRestoreCollections(ctx, string(man.ID), paths, nil, errs)
 	if err != nil {
 		// Restore is best-effort and we want to keep it that way since we want to
 		// return as much metadata as we can to reduce the work we'll need to do.

src/internal/operations/manifests_test.go

@@ -24,9 +24,9 @@ import (
 // ---------------------------------------------------------------------------
 
 type mockManifestRestorer struct {
-	mockRestorer
+	mockRestoreProducer
 	mans  []*kopia.ManifestEntry
-	mrErr error // err varname already claimed by mockRestorer
+	mrErr error // err varname already claimed by mockRestoreProducer
 }
 
 func (mmr mockManifestRestorer) FetchPrevSnapshotManifests(
@@ -225,7 +225,7 @@ func (suite *OperationsManifestsUnitSuite) TestCollectMetadata() {
 
 			paths := test.expectPaths(t, test.fileNames)
 
-			mr := mockRestorer{err: test.expectErr}
+			mr := mockRestoreProducer{err: test.expectErr}
 			mr.buildRestoreFunc(t, test.manID, paths)
 
 			man := &kopia.ManifestEntry{
@@ -447,8 +447,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "don't get metadata, no mans",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
-				mans:         []*kopia.ManifestEntry{},
+				mans:                []*kopia.ManifestEntry{},
 			},
 			gb:        mockGetBackuper{detailsID: did},
 			reasons:   []kopia.Reason{},
@@ -460,8 +460,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "don't get metadata",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
-				mans:         []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "", "")},
+				mans:                []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "", "")},
 			},
 			gb:        mockGetBackuper{detailsID: did},
 			reasons:   []kopia.Reason{},
@@ -473,8 +473,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "don't get metadata, incomplete manifest",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
-				mans:         []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "ir", "")},
+				mans:                []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "ir", "")},
 			},
 			gb:        mockGetBackuper{detailsID: did},
 			reasons:   []kopia.Reason{},
@@ -486,8 +486,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "fetch manifests errors",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
-				mrErr:        assert.AnError,
+				mrErr:               assert.AnError,
 			},
 			gb:        mockGetBackuper{detailsID: did},
 			reasons:   []kopia.Reason{},
@@ -499,7 +499,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "verify distinct bases fails",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
 				mans: []*kopia.ManifestEntry{
 					makeMan(path.EmailCategory, "", "", ""),
 					makeMan(path.EmailCategory, "", "", ""),
@@ -515,8 +515,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "no manifests",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
-				mans:         []*kopia.ManifestEntry{},
+				mans:                []*kopia.ManifestEntry{},
 			},
 			gb:        mockGetBackuper{detailsID: did},
 			reasons:   []kopia.Reason{},
@@ -528,7 +528,7 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "only incomplete manifests",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
 				mans: []*kopia.ManifestEntry{
 					makeMan(path.EmailCategory, "", "ir", ""),
 					makeMan(path.ContactsCategory, "", "ir", ""),
@@ -544,9 +544,11 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "man missing backup id",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{collsByID: map[string][]data.RestoreCollection{
+				mockRestoreProducer: mockRestoreProducer{
-					"id": {data.NotFoundRestoreCollection{Collection: mockColl{id: "id_coll"}}},
+					collsByID: map[string][]data.RestoreCollection{
-				}},
+						"id": {data.NotFoundRestoreCollection{Collection: mockColl{id: "id_coll"}}},
+					},
+				},
 				mans: []*kopia.ManifestEntry{makeMan(path.EmailCategory, "id", "", "")},
 			},
 			gb:            mockGetBackuper{detailsID: did},
@@ -559,8 +561,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "backup missing details id",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{},
+				mockRestoreProducer: mockRestoreProducer{},
-				mans:         []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "", "bid")},
+				mans:                []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "", "bid")},
 			},
 			gb:        mockGetBackuper{},
 			reasons:   []kopia.Reason{},
@@ -571,10 +573,12 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "one complete, one incomplete",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{collsByID: map[string][]data.RestoreCollection{
+				mockRestoreProducer: mockRestoreProducer{
-					"id":        {data.NotFoundRestoreCollection{Collection: mockColl{id: "id_coll"}}},
+					collsByID: map[string][]data.RestoreCollection{
-					"incmpl_id": {data.NotFoundRestoreCollection{Collection: mockColl{id: "incmpl_id_coll"}}},
+						"id":        {data.NotFoundRestoreCollection{Collection: mockColl{id: "id_coll"}}},
-				}},
+						"incmpl_id": {data.NotFoundRestoreCollection{Collection: mockColl{id: "incmpl_id_coll"}}},
+					},
+				},
 				mans: []*kopia.ManifestEntry{
 					makeMan(path.EmailCategory, "id", "", "bid"),
 					makeMan(path.EmailCategory, "incmpl_id", "ir", ""),
@@ -590,9 +594,11 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "single valid man",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{collsByID: map[string][]data.RestoreCollection{
+				mockRestoreProducer: mockRestoreProducer{
-					"id": {data.NotFoundRestoreCollection{Collection: mockColl{id: "id_coll"}}},
+					collsByID: map[string][]data.RestoreCollection{
-				}},
+						"id": {data.NotFoundRestoreCollection{Collection: mockColl{id: "id_coll"}}},
+					},
+				},
 				mans: []*kopia.ManifestEntry{makeMan(path.EmailCategory, "id", "", "bid")},
 			},
 			gb:        mockGetBackuper{detailsID: did},
@@ -605,10 +611,12 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "multiple valid mans",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{collsByID: map[string][]data.RestoreCollection{
+				mockRestoreProducer: mockRestoreProducer{
-					"mail":    {data.NotFoundRestoreCollection{Collection: mockColl{id: "mail_coll"}}},
+					collsByID: map[string][]data.RestoreCollection{
-					"contact": {data.NotFoundRestoreCollection{Collection: mockColl{id: "contact_coll"}}},
+						"mail":    {data.NotFoundRestoreCollection{Collection: mockColl{id: "mail_coll"}}},
-				}},
+						"contact": {data.NotFoundRestoreCollection{Collection: mockColl{id: "contact_coll"}}},
+					},
+				},
 				mans: []*kopia.ManifestEntry{
 					makeMan(path.EmailCategory, "mail", "", "bid"),
 					makeMan(path.ContactsCategory, "contact", "", "bid"),
@@ -627,8 +635,8 @@ func (suite *OperationsManifestsUnitSuite) TestProduceManifestsAndMetadata() {
 		{
 			name: "error collecting metadata",
 			mr: mockManifestRestorer{
-				mockRestorer: mockRestorer{err: assert.AnError},
+				mockRestoreProducer: mockRestoreProducer{err: assert.AnError},
-				mans:         []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "", "bid")},
+				mans:                []*kopia.ManifestEntry{makeMan(path.EmailCategory, "", "", "bid")},
 			},
 			gb:            mockGetBackuper{detailsID: did},
 			reasons:       []kopia.Reason{},
@@ -961,7 +969,7 @@ func (suite *BackupManifestUnitSuite) TestBackupOperation_CollectMetadata() {
 			ctx, flush := tester.NewContext()
 			defer flush()
 
-			mr := &mockRestorer{}
+			mr := &mockRestoreProducer{}
 
 			_, err := collectMetadata(ctx, mr, test.inputMan, test.inputFiles, tenant, fault.New(true))
 			assert.NoError(t, err, clues.ToCore(err))

src/internal/operations/operation.go

@@ -5,7 +5,6 @@ import (
 
 	"github.com/alcionai/clues"
 
-	"github.com/alcionai/corso/src/internal/connector"
 	"github.com/alcionai/corso/src/internal/events"
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/pkg/control"
@@ -57,7 +56,6 @@ type operation struct {
 	bus   events.Eventer
 	kopia *kopia.Wrapper
 	store *store.Wrapper
-	gc    *connector.GraphConnector
 }
 
 func newOperation(
@@ -65,7 +63,6 @@ func newOperation(
 	bus events.Eventer,
 	kw *kopia.Wrapper,
 	sw *store.Wrapper,
-	gc *connector.GraphConnector,
 ) operation {
 	return operation{
 		CreatedAt: time.Now(),
@@ -75,7 +72,6 @@ func newOperation(
 		bus:   bus,
 		kopia: kw,
 		store: sw,
-		gc:    gc,
 
 		Status: InProgress,
 	}
@@ -90,9 +86,5 @@ func (op operation) validate() error {
 		return clues.New("missing modelstore")
 	}
 
-	if op.gc == nil {
-		return clues.New("missing graph connector")
-	}
-
 	return nil
 }

src/internal/operations/operation_test.go

@@ -8,7 +8,6 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/suite"
 
-	"github.com/alcionai/corso/src/internal/connector"
 	"github.com/alcionai/corso/src/internal/events"
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/tester"
@@ -26,30 +25,27 @@ func TestOperationSuite(t *testing.T) {
 
 func (suite *OperationSuite) TestNewOperation() {
 	t := suite.T()
-	op := newOperation(control.Options{}, events.Bus{}, nil, nil, nil)
+	op := newOperation(control.Options{}, events.Bus{}, nil, nil)
 	assert.Greater(t, op.CreatedAt, time.Time{})
 }
 
 func (suite *OperationSuite) TestOperation_Validate() {
 	kwStub := &kopia.Wrapper{}
 	swStub := &store.Wrapper{}
-	gcStub := &connector.GraphConnector{}
 
 	table := []struct {
 		name     string
 		kw       *kopia.Wrapper
 		sw       *store.Wrapper
-		gc       *connector.GraphConnector
 		errCheck assert.ErrorAssertionFunc
 	}{
-		{"good", kwStub, swStub, gcStub, assert.NoError},
+		{"good", kwStub, swStub, assert.NoError},
-		{"missing kopia wrapper", nil, swStub, gcStub, assert.Error},
+		{"missing kopia wrapper", nil, swStub, assert.Error},
-		{"missing store wrapper", kwStub, nil, gcStub, assert.Error},
+		{"missing store wrapper", kwStub, nil, assert.Error},
-		{"missing graph connector", kwStub, swStub, nil, assert.Error},
 	}
 	for _, test := range table {
 		suite.Run(test.name, func() {
-			err := newOperation(control.Options{}, events.Bus{}, test.kw, test.sw, test.gc).validate()
+			err := newOperation(control.Options{}, events.Bus{}, test.kw, test.sw).validate()
 			test.errCheck(suite.T(), err, clues.ToCore(err))
 		})
 	}

src/internal/operations/restore.go

@@ -10,15 +10,14 @@ import (
 
 	"github.com/alcionai/corso/src/internal/common"
 	"github.com/alcionai/corso/src/internal/common/crash"
-	"github.com/alcionai/corso/src/internal/connector"
 	"github.com/alcionai/corso/src/internal/connector/onedrive"
-	"github.com/alcionai/corso/src/internal/connector/support"
 	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/diagnostics"
 	"github.com/alcionai/corso/src/internal/events"
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/model"
 	"github.com/alcionai/corso/src/internal/observe"
+	"github.com/alcionai/corso/src/internal/operations/inject"
 	"github.com/alcionai/corso/src/internal/stats"
 	"github.com/alcionai/corso/src/internal/streamstore"
 	"github.com/alcionai/corso/src/pkg/account"
@@ -42,6 +41,7 @@ type RestoreOperation struct {
 	Version     string                     `json:"version"`
 
 	account account.Account
+	rc      inject.RestoreConsumer
 }
 
 // RestoreResults aggregate the details of the results of the operation.
@@ -56,7 +56,7 @@ func NewRestoreOperation(
 	opts control.Options,
 	kw *kopia.Wrapper,
 	sw *store.Wrapper,
-	gc *connector.GraphConnector,
+	rc inject.RestoreConsumer,
 	acct account.Account,
 	backupID model.StableID,
 	sel selectors.Selector,
@@ -64,12 +64,13 @@ func NewRestoreOperation(
 	bus events.Eventer,
 ) (RestoreOperation, error) {
 	op := RestoreOperation{
-		operation:   newOperation(opts, bus, kw, sw, gc),
+		operation:   newOperation(opts, bus, kw, sw),
 		BackupID:    backupID,
 		Selectors:   sel,
 		Destination: dest,
 		Version:     "v0",
 		account:     acct,
+		rc:          rc,
 	}
 	if err := op.validate(); err != nil {
 		return RestoreOperation{}, err
@@ -79,6 +80,10 @@ func NewRestoreOperation(
 }
 
 func (op RestoreOperation) validate() error {
+	if op.rc == nil {
+		return clues.New("missing restore consumer")
+	}
+
 	return op.operation.validate()
 }
 
@@ -88,7 +93,7 @@ func (op RestoreOperation) validate() error {
 // get populated asynchronously.
 type restoreStats struct {
 	cs            []data.RestoreCollection
-	gc            *support.ConnectorOperationStatus
+	gc            *data.CollectionStats
 	bytesRead     *stats.ByteCounter
 	resourceCount int
 
@@ -96,16 +101,6 @@ type restoreStats struct {
 	restoreID string
 }
 
-type restorer interface {
-	RestoreMultipleItems(
-		ctx context.Context,
-		snapshotID string,
-		paths []path.Path,
-		bc kopia.ByteCounter,
-		errs *fault.Bus,
-	) ([]data.RestoreCollection, error)
-}
-
 // Run begins a synchronous restore operation.
 func (op *RestoreOperation) Run(ctx context.Context) (restoreDetails *details.Details, err error) {
 	defer func() {
@@ -222,7 +217,7 @@ func (op *RestoreOperation) do(
 	defer closer()
 	defer close(kopiaComplete)
 
-	dcs, err := op.kopia.RestoreMultipleItems(ctx, bup.SnapshotID, paths, opStats.bytesRead, op.Errors)
+	dcs, err := op.kopia.ProduceRestoreCollections(ctx, bup.SnapshotID, paths, opStats.bytesRead, op.Errors)
 	if err != nil {
 		return nil, clues.Wrap(err, "producing collections to restore")
 	}
@@ -235,12 +230,9 @@ func (op *RestoreOperation) do(
 	opStats.resourceCount = 1
 	opStats.cs = dcs
 
-	restoreComplete, closer := observe.MessageWithCompletion(ctx, observe.Safe("Restoring data"))
+	deets, err = consumeRestoreCollections(
-	defer closer()
-	defer close(restoreComplete)
-
-	restoreDetails, err := op.gc.RestoreDataCollections(
 		ctx,
+		op.rc,
 		bup.Version,
 		op.account,
 		op.Selectors,
@@ -252,13 +244,11 @@ func (op *RestoreOperation) do(
 		return nil, clues.Wrap(err, "restoring collections")
 	}
 
-	restoreComplete <- struct{}{}
+	opStats.gc = op.rc.Wait()
 
-	opStats.gc = op.gc.AwaitStatus()
+	logger.Ctx(ctx).Debug(opStats.gc)
 
-	logger.Ctx(ctx).Debug(op.gc.PrintableStatus())
+	return deets, nil
-
-	return restoreDetails, nil
 }
 
 // persists details and statistics about the restore operation.
@@ -285,11 +275,11 @@ func (op *RestoreOperation) persistResults(
 		return clues.New("restoration never completed")
 	}
 
-	if op.Status != Failed && opStats.gc.Metrics.Successes == 0 {
+	if op.Status != Failed && opStats.gc.IsZero() {
 		op.Status = NoData
 	}
 
-	op.Results.ItemsWritten = opStats.gc.Metrics.Successes
+	op.Results.ItemsWritten = opStats.gc.Successes
 
 	op.bus.Event(
 		ctx,
@@ -312,6 +302,44 @@ func (op *RestoreOperation) persistResults(
 	return op.Errors.Failure()
 }
 
+// ---------------------------------------------------------------------------
+// Restorer funcs
+// ---------------------------------------------------------------------------
+
+func consumeRestoreCollections(
+	ctx context.Context,
+	rc inject.RestoreConsumer,
+	backupVersion int,
+	acct account.Account,
+	sel selectors.Selector,
+	dest control.RestoreDestination,
+	opts control.Options,
+	dcs []data.RestoreCollection,
+	errs *fault.Bus,
+) (*details.Details, error) {
+	complete, closer := observe.MessageWithCompletion(ctx, observe.Safe("Restoring data"))
+	defer func() {
+		complete <- struct{}{}
+		close(complete)
+		closer()
+	}()
+
+	deets, err := rc.ConsumeRestoreCollections(
+		ctx,
+		backupVersion,
+		acct,
+		sel,
+		dest,
+		opts,
+		dcs,
+		errs)
+	if err != nil {
+		return nil, clues.Wrap(err, "restoring collections")
+	}
+
+	return deets, nil
+}
+
 // formatDetailsForRestoration reduces the provided detail entries according to the
 // selector specifications.
 func formatDetailsForRestoration(

src/internal/operations/restore_test.go

@@ -16,12 +16,12 @@ import (
 	"github.com/alcionai/corso/src/internal/connector/graph"
 	"github.com/alcionai/corso/src/internal/connector/mockconnector"
 	"github.com/alcionai/corso/src/internal/connector/onedrive/api"
-	"github.com/alcionai/corso/src/internal/connector/support"
 	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/events"
 	evmock "github.com/alcionai/corso/src/internal/events/mock"
 	"github.com/alcionai/corso/src/internal/kopia"
 	"github.com/alcionai/corso/src/internal/model"
+	"github.com/alcionai/corso/src/internal/operations/inject"
 	"github.com/alcionai/corso/src/internal/stats"
 	"github.com/alcionai/corso/src/internal/tester"
 	"github.com/alcionai/corso/src/pkg/account"
@@ -50,7 +50,7 @@ func (suite *RestoreOpSuite) TestRestoreOperation_PersistResults() {
 	var (
 		kw   = &kopia.Wrapper{}
 		sw   = &store.Wrapper{}
-		gc   = &connector.GraphConnector{}
+		gc   = &mockconnector.GraphConnector{}
 		acct = account.Account{}
 		now  = time.Now()
 		dest = tester.DefaultTestRestoreDestination()
@@ -75,11 +75,9 @@ func (suite *RestoreOpSuite) TestRestoreOperation_PersistResults() {
 						Collection: &mockconnector.MockExchangeDataCollection{},
 					},
 				},
-				gc: &support.ConnectorOperationStatus{
+				gc: &data.CollectionStats{
-					Metrics: support.CollectionMetrics{
+					Objects:   1,
-						Objects:   1,
+					Successes: 1,
-						Successes: 1,
-					},
 				},
 			},
 		},
@@ -89,7 +87,7 @@ func (suite *RestoreOpSuite) TestRestoreOperation_PersistResults() {
 			fail:         assert.AnError,
 			stats: restoreStats{
 				bytesRead: &stats.ByteCounter{},
-				gc:        &support.ConnectorOperationStatus{},
+				gc:        &data.CollectionStats{},
 			},
 		},
 		{
@@ -98,7 +96,7 @@ func (suite *RestoreOpSuite) TestRestoreOperation_PersistResults() {
 			stats: restoreStats{
 				bytesRead: &stats.ByteCounter{},
 				cs:        []data.RestoreCollection{},
-				gc:        &support.ConnectorOperationStatus{},
+				gc:        &data.CollectionStats{},
 			},
 		},
 	}
@@ -126,7 +124,7 @@ func (suite *RestoreOpSuite) TestRestoreOperation_PersistResults() {
 
 			assert.Equal(t, test.expectStatus.String(), op.Status.String(), "status")
 			assert.Equal(t, len(test.stats.cs), op.Results.ItemsRead, "items read")
-			assert.Equal(t, test.stats.gc.Metrics.Successes, op.Results.ItemsWritten, "items written")
+			assert.Equal(t, test.stats.gc.Successes, op.Results.ItemsWritten, "items written")
 			assert.Equal(t, test.stats.bytesRead.NumBytes, op.Results.BytesRead, "resource owners")
 			assert.Equal(t, test.stats.resourceCount, op.Results.ResourceOwners, "resource owners")
 			assert.Equal(t, now, op.Results.StartedAt, "started at")
@@ -217,7 +215,7 @@ func (suite *RestoreOpIntegrationSuite) TearDownSuite() {
 func (suite *RestoreOpIntegrationSuite) TestNewRestoreOperation() {
 	kw := &kopia.Wrapper{}
 	sw := &store.Wrapper{}
-	gc := &connector.GraphConnector{}
+	gc := &mockconnector.GraphConnector{}
 	acct := tester.NewM365Account(suite.T())
 	dest := tester.DefaultTestRestoreDestination()
 
@@ -226,7 +224,7 @@ func (suite *RestoreOpIntegrationSuite) TestNewRestoreOperation() {
 		opts     control.Options
 		kw       *kopia.Wrapper
 		sw       *store.Wrapper
-		gc       *connector.GraphConnector
+		rc       inject.RestoreConsumer
 		acct     account.Account
 		targets  []string
 		errCheck assert.ErrorAssertionFunc
@@ -234,7 +232,7 @@ func (suite *RestoreOpIntegrationSuite) TestNewRestoreOperation() {
 		{"good", control.Options{}, kw, sw, gc, acct, nil, assert.NoError},
 		{"missing kopia", control.Options{}, nil, sw, gc, acct, nil, assert.Error},
 		{"missing modelstore", control.Options{}, kw, nil, gc, acct, nil, assert.Error},
-		{"missing graphConnector", control.Options{}, kw, sw, nil, acct, nil, assert.Error},
+		{"missing restore consumer", control.Options{}, kw, sw, nil, acct, nil, assert.Error},
 	}
 	for _, test := range table {
 		suite.Run(test.name, func() {
@@ -246,7 +244,7 @@ func (suite *RestoreOpIntegrationSuite) TestNewRestoreOperation() {
 				test.opts,
 				test.kw,
 				test.sw,
-				test.gc,
+				test.rc,
 				test.acct,
 				"backup-id",
 				selectors.Selector{DiscreteOwner: "test"},

src/internal/streamstore/streamstore.go

@@ -11,8 +11,8 @@ import (
 
 	"github.com/alcionai/corso/src/internal/data"
 	"github.com/alcionai/corso/src/internal/kopia"
+	"github.com/alcionai/corso/src/internal/operations/inject"
 	"github.com/alcionai/corso/src/internal/stats"
-	"github.com/alcionai/corso/src/pkg/backup/details"
 	"github.com/alcionai/corso/src/pkg/fault"
 	"github.com/alcionai/corso/src/pkg/path"
 )
@@ -221,26 +221,14 @@ func collect(
 	return &dc, nil
 }
 
-type backuper interface {
-	BackupCollections(
-		ctx context.Context,
-		bases []kopia.IncrementalBase,
-		cs []data.BackupCollection,
-		globalExcludeSet map[string]map[string]struct{},
-		tags map[string]string,
-		buildTreeWithBase bool,
-		errs *fault.Bus,
-	) (*kopia.BackupStats, *details.Builder, map[string]kopia.PrevRefs, error)
-}
-
 // write persists bytes to the store
 func write(
 	ctx context.Context,
-	bup backuper,
+	bup inject.BackupConsumer,
 	dbcs []data.BackupCollection,
 	errs *fault.Bus,
 ) (string, error) {
-	backupStats, _, _, err := bup.BackupCollections(
+	backupStats, _, _, err := bup.ConsumeBackupCollections(
 		ctx,
 		nil,
 		dbcs,
@@ -255,16 +243,6 @@ func write(
 	return backupStats.SnapshotID, nil
 }
 
-type restorer interface {
-	RestoreMultipleItems(
-		ctx context.Context,
-		snapshotID string,
-		paths []path.Path,
-		bc kopia.ByteCounter,
-		errs *fault.Bus,
-	) ([]data.RestoreCollection, error)
-}
-
 // read retrieves an object from the store
 func read(
 	ctx context.Context,
@@ -272,7 +250,7 @@ func read(
 	tenantID string,
 	service path.ServiceType,
 	col Collectable,
-	rer restorer,
+	rer inject.RestoreProducer,
 	errs *fault.Bus,
 ) error {
 	// construct the path of the container
@@ -285,7 +263,7 @@ func read(
 
 	ctx = clues.Add(ctx, "snapshot_id", snapshotID)
 
-	cs, err := rer.RestoreMultipleItems(
+	cs, err := rer.ProduceRestoreCollections(
 		ctx,
 		snapshotID,
 		[]path.Path{p},