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model.go: move record logic to record.go (#1555)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| package model | ||
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| import ( | ||
| "time" | ||
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| "github.com/PeerDB-io/peer-flow/generated/protos" | ||
| ) | ||
|
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| type Record interface { | ||
| GetCheckpointID() int64 | ||
| GetCommitTime() time.Time | ||
| GetDestinationTableName() string | ||
| GetSourceTableName() string | ||
| // get columns and values for the record | ||
| GetItems() *RecordItems | ||
| PopulateCountMap(mapOfCounts map[string]*RecordTypeCounts) | ||
| } | ||
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| type BaseRecord struct { | ||
| // CheckpointID is the ID of the record. | ||
| CheckpointID int64 `json:"checkpointId"` | ||
| // BeginMessage.CommitTime.UnixNano(), 16 bytes smaller than time.Time | ||
| CommitTimeNano int64 `json:"commitTimeNano"` | ||
| } | ||
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| func (r *BaseRecord) GetCheckpointID() int64 { | ||
| return r.CheckpointID | ||
| } | ||
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| func (r *BaseRecord) GetCommitTime() time.Time { | ||
| return time.Unix(0, r.CommitTimeNano) | ||
| } | ||
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| type InsertRecord struct { | ||
| // Items is a map of column name to value. | ||
| Items *RecordItems | ||
| // Name of the source table | ||
| SourceTableName string | ||
| // Name of the destination table | ||
| DestinationTableName string | ||
| // CommitID is the ID of the commit corresponding to this record. | ||
| CommitID int64 | ||
| BaseRecord | ||
| } | ||
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| func (r *InsertRecord) GetDestinationTableName() string { | ||
| return r.DestinationTableName | ||
| } | ||
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| type UpdateRecord struct { | ||
| // OldItems is a map of column name to value. | ||
| OldItems *RecordItems | ||
| // NewItems is a map of column name to value. | ||
| NewItems *RecordItems | ||
| // unchanged toast columns | ||
| UnchangedToastColumns map[string]struct{} | ||
| // Name of the source table | ||
| SourceTableName string | ||
| // Name of the destination table | ||
| DestinationTableName string | ||
| BaseRecord | ||
| } | ||
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| func (r *UpdateRecord) GetDestinationTableName() string { | ||
| return r.DestinationTableName | ||
| } | ||
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| func (r *UpdateRecord) GetSourceTableName() string { | ||
| return r.SourceTableName | ||
| } | ||
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| func (r *UpdateRecord) GetItems() *RecordItems { | ||
| return r.NewItems | ||
| } | ||
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| func (r *UpdateRecord) PopulateCountMap(mapOfCounts map[string]*RecordTypeCounts) { | ||
| recordCount, ok := mapOfCounts[r.DestinationTableName] | ||
| if ok { | ||
| recordCount.UpdateCount++ | ||
| } | ||
| } | ||
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| type DeleteRecord struct { | ||
| // Items is a map of column name to value. | ||
| Items *RecordItems | ||
| // unchanged toast columns, filled from latest UpdateRecord | ||
| UnchangedToastColumns map[string]struct{} | ||
| // Name of the source table | ||
| SourceTableName string | ||
| // Name of the destination table | ||
| DestinationTableName string | ||
| BaseRecord | ||
| } | ||
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| func (r *DeleteRecord) GetDestinationTableName() string { | ||
| return r.DestinationTableName | ||
| } | ||
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| func (r *DeleteRecord) GetSourceTableName() string { | ||
| return r.SourceTableName | ||
| } | ||
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| func (r *DeleteRecord) GetItems() *RecordItems { | ||
| return r.Items | ||
| } | ||
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| func (r *DeleteRecord) PopulateCountMap(mapOfCounts map[string]*RecordTypeCounts) { | ||
| recordCount, ok := mapOfCounts[r.DestinationTableName] | ||
| if ok { | ||
| recordCount.DeleteCount++ | ||
| } | ||
| } | ||
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| // being clever and passing the delta back as a regular record instead of heavy CDC refactoring. | ||
| type RelationRecord struct { | ||
| TableSchemaDelta *protos.TableSchemaDelta `json:"tableSchemaDelta"` | ||
| BaseRecord | ||
| } | ||
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| func (r *RelationRecord) GetDestinationTableName() string { | ||
| return r.TableSchemaDelta.DstTableName | ||
| } | ||
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| func (r *RelationRecord) GetSourceTableName() string { | ||
| return r.TableSchemaDelta.SrcTableName | ||
| } | ||
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| func (r *RelationRecord) GetItems() *RecordItems { | ||
| return nil | ||
| } | ||
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| func (r *RelationRecord) PopulateCountMap(mapOfCounts map[string]*RecordTypeCounts) { | ||
| } |