zitadel/internal/eventstore/v3/field.go
Silvan 523d73f674
fix(fields): use read commit isolation level in trigger (#8410)
# Which Problems Are Solved

If the processing time of serializable transactions in the fields
handler take too long, the next iteration can fail.

# How the Problems Are Solved

Changed the isolation level of the current states query to Read Commited
2024-08-09 09:24:28 +00:00

368 lines
9.8 KiB
Go

package eventstore
import (
"context"
"database/sql"
_ "embed"
"encoding/json"
"reflect"
"slices"
"strconv"
"strings"
"github.com/zitadel/zitadel/internal/api/authz"
"github.com/zitadel/zitadel/internal/eventstore"
"github.com/zitadel/zitadel/internal/telemetry/tracing"
"github.com/zitadel/zitadel/internal/zerrors"
)
type fieldValue struct {
value []byte
}
func (value *fieldValue) Unmarshal(ptr any) error {
return json.Unmarshal(value.value, ptr)
}
func (es *Eventstore) FillFields(ctx context.Context, events ...eventstore.FillFieldsEvent) (err error) {
ctx, span := tracing.NewSpan(ctx)
defer span.End()
tx, err := es.client.BeginTx(ctx, &sql.TxOptions{Isolation: sql.LevelReadCommitted})
if err != nil {
return err
}
defer func() {
if err != nil {
_ = tx.Rollback()
return
}
err = tx.Commit()
}()
return handleFieldFillEvents(ctx, tx, events)
}
// Search implements the [eventstore.Search] method
func (es *Eventstore) Search(ctx context.Context, conditions ...map[eventstore.FieldType]any) (result []*eventstore.SearchResult, err error) {
ctx, span := tracing.NewSpan(ctx)
defer span.EndWithError(err)
var builder strings.Builder
args := buildSearchStatement(ctx, &builder, conditions...)
err = es.client.QueryContext(
ctx,
func(rows *sql.Rows) error {
for rows.Next() {
var (
res eventstore.SearchResult
value fieldValue
)
err = rows.Scan(
&res.Aggregate.InstanceID,
&res.Aggregate.ResourceOwner,
&res.Aggregate.Type,
&res.Aggregate.ID,
&res.Object.Type,
&res.Object.ID,
&res.Object.Revision,
&res.FieldName,
&value.value,
)
if err != nil {
return err
}
res.Value = &value
result = append(result, &res)
}
return nil
},
builder.String(),
args...,
)
if err != nil {
return nil, err
}
return result, nil
}
const searchQueryPrefix = `SELECT instance_id, resource_owner, aggregate_type, aggregate_id, object_type, object_id, object_revision, field_name, value FROM eventstore.fields WHERE instance_id = $1`
func buildSearchStatement(ctx context.Context, builder *strings.Builder, conditions ...map[eventstore.FieldType]any) []any {
args := make([]any, 0, len(conditions)*4+1)
args = append(args, authz.GetInstance(ctx).InstanceID())
builder.WriteString(searchQueryPrefix)
builder.WriteString(" AND ")
if len(conditions) > 1 {
builder.WriteRune('(')
}
for i, condition := range conditions {
if i > 0 {
builder.WriteString(" OR ")
}
if len(condition) > 1 {
builder.WriteRune('(')
}
args = append(args, buildSearchCondition(builder, len(args)+1, condition)...)
if len(condition) > 1 {
builder.WriteRune(')')
}
}
if len(conditions) > 1 {
builder.WriteRune(')')
}
return args
}
func buildSearchCondition(builder *strings.Builder, index int, conditions map[eventstore.FieldType]any) []any {
args := make([]any, 0, len(conditions))
orderedCondition := make([]eventstore.FieldType, 0, len(conditions))
for field := range conditions {
orderedCondition = append(orderedCondition, field)
}
slices.Sort(orderedCondition)
for _, field := range orderedCondition {
if len(args) > 0 {
builder.WriteString(" AND ")
}
builder.WriteString(fieldNameByType(field, conditions[field]))
builder.WriteString(" = $")
builder.WriteString(strconv.Itoa(index + len(args)))
args = append(args, conditions[field])
}
return args
}
func handleFieldCommands(ctx context.Context, tx *sql.Tx, commands []eventstore.Command) error {
for _, command := range commands {
if len(command.Fields()) > 0 {
if err := handleFieldOperations(ctx, tx, command.Fields()); err != nil {
return err
}
}
}
return nil
}
func handleFieldFillEvents(ctx context.Context, tx *sql.Tx, events []eventstore.FillFieldsEvent) error {
for _, event := range events {
if len(event.Fields()) > 0 {
if err := handleFieldOperations(ctx, tx, event.Fields()); err != nil {
return err
}
}
}
return nil
}
func handleFieldOperations(ctx context.Context, tx *sql.Tx, operations []*eventstore.FieldOperation) error {
for _, operation := range operations {
if operation.Set != nil {
if err := handleFieldSet(ctx, tx, operation.Set); err != nil {
return err
}
continue
}
if operation.Remove != nil {
if err := handleSearchDelete(ctx, tx, operation.Remove); err != nil {
return err
}
}
}
return nil
}
func handleFieldSet(ctx context.Context, tx *sql.Tx, field *eventstore.Field) error {
if len(field.UpsertConflictFields) == 0 {
return handleSearchInsert(ctx, tx, field)
}
return handleSearchUpsert(ctx, tx, field)
}
const (
insertField = `INSERT INTO eventstore.fields (instance_id, resource_owner, aggregate_type, aggregate_id, object_type, object_id, object_revision, field_name, value, value_must_be_unique, should_index) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)`
)
func handleSearchInsert(ctx context.Context, tx *sql.Tx, field *eventstore.Field) error {
value, err := json.Marshal(field.Value.Value)
if err != nil {
return zerrors.ThrowInvalidArgument(err, "V3-fcrW1", "unable to marshal field value")
}
_, err = tx.ExecContext(
ctx,
insertField,
field.Aggregate.InstanceID,
field.Aggregate.ResourceOwner,
field.Aggregate.Type,
field.Aggregate.ID,
field.Object.Type,
field.Object.ID,
field.Object.Revision,
field.FieldName,
value,
field.Value.MustBeUnique,
field.Value.ShouldIndex,
)
return err
}
const (
fieldsUpsertPrefix = `WITH upsert AS (UPDATE eventstore.fields SET (instance_id, resource_owner, aggregate_type, aggregate_id, object_type, object_id, object_revision, field_name, value, value_must_be_unique, should_index) = ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11) WHERE `
fieldsUpsertSuffix = ` RETURNING * ) INSERT INTO eventstore.fields (instance_id, resource_owner, aggregate_type, aggregate_id, object_type, object_id, object_revision, field_name, value, value_must_be_unique, should_index) SELECT $1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11 WHERE NOT EXISTS (SELECT 1 FROM upsert)`
)
func handleSearchUpsert(ctx context.Context, tx *sql.Tx, field *eventstore.Field) error {
value, err := json.Marshal(field.Value.Value)
if err != nil {
return zerrors.ThrowInvalidArgument(err, "V3-fcrW1", "unable to marshal field value")
}
_, err = tx.ExecContext(
ctx,
writeUpsertField(field.UpsertConflictFields),
field.Aggregate.InstanceID,
field.Aggregate.ResourceOwner,
field.Aggregate.Type,
field.Aggregate.ID,
field.Object.Type,
field.Object.ID,
field.Object.Revision,
field.FieldName,
value,
field.Value.MustBeUnique,
field.Value.ShouldIndex,
)
return err
}
func writeUpsertField(fields []eventstore.FieldType) string {
var builder strings.Builder
builder.WriteString(fieldsUpsertPrefix)
for i, fieldName := range fields {
if i > 0 {
builder.WriteString(" AND ")
}
name, index := searchFieldNameAndIndexByTypeForPush(fieldName)
builder.WriteString(name)
builder.WriteString(" = ")
builder.WriteString(index)
}
builder.WriteString(fieldsUpsertSuffix)
return builder.String()
}
const removeSearch = `DELETE FROM eventstore.fields WHERE `
func handleSearchDelete(ctx context.Context, tx *sql.Tx, clauses map[eventstore.FieldType]any) error {
if len(clauses) == 0 {
return zerrors.ThrowInvalidArgument(nil, "V3-oqlBZ", "no conditions")
}
stmt, args := writeDeleteField(clauses)
_, err := tx.ExecContext(ctx, stmt, args...)
return err
}
func writeDeleteField(clauses map[eventstore.FieldType]any) (string, []any) {
var (
builder strings.Builder
args = make([]any, 0, len(clauses))
)
builder.WriteString(removeSearch)
orderedCondition := make([]eventstore.FieldType, 0, len(clauses))
for field := range clauses {
orderedCondition = append(orderedCondition, field)
}
slices.Sort(orderedCondition)
for _, fieldName := range orderedCondition {
if len(args) > 0 {
builder.WriteString(" AND ")
}
builder.WriteString(fieldNameByType(fieldName, clauses[fieldName]))
builder.WriteString(" = $")
builder.WriteString(strconv.Itoa(len(args) + 1))
args = append(args, clauses[fieldName])
}
return builder.String(), args
}
func fieldNameByType(typ eventstore.FieldType, value any) string {
switch typ {
case eventstore.FieldTypeAggregateID:
return "aggregate_id"
case eventstore.FieldTypeAggregateType:
return "aggregate_type"
case eventstore.FieldTypeInstanceID:
return "instance_id"
case eventstore.FieldTypeResourceOwner:
return "resource_owner"
case eventstore.FieldTypeFieldName:
return "field_name"
case eventstore.FieldTypeObjectType:
return "object_type"
case eventstore.FieldTypeObjectID:
return "object_id"
case eventstore.FieldTypeObjectRevision:
return "object_revision"
case eventstore.FieldTypeValue:
return valueColumn(value)
}
return ""
}
func searchFieldNameAndIndexByTypeForPush(typ eventstore.FieldType) (string, string) {
switch typ {
case eventstore.FieldTypeInstanceID:
return "instance_id", "$1"
case eventstore.FieldTypeResourceOwner:
return "resource_owner", "$2"
case eventstore.FieldTypeAggregateType:
return "aggregate_type", "$3"
case eventstore.FieldTypeAggregateID:
return "aggregate_id", "$4"
case eventstore.FieldTypeObjectType:
return "object_type", "$5"
case eventstore.FieldTypeObjectID:
return "object_id", "$6"
case eventstore.FieldTypeObjectRevision:
return "object_revision", "$7"
case eventstore.FieldTypeFieldName:
return "field_name", "$8"
case eventstore.FieldTypeValue:
return "value", "$9"
}
return "", ""
}
func valueColumn(value any) string {
//nolint: exhaustive
switch reflect.TypeOf(value).Kind() {
case reflect.Bool:
return "bool_value"
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Float32, reflect.Float64:
return "number_value"
case reflect.String:
return "text_value"
}
return ""
}