88 lines
2.6 KiB
Go
88 lines
2.6 KiB
Go
// Copyright 2022 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package server
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import (
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"database/sql"
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"github.com/pingcap/tidb/pkg/lightning/log"
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"github.com/pingcap/tidb/pkg/objstore/storeapi"
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"github.com/pingcap/tidb/pkg/util/promutil"
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"go.uber.org/atomic"
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"go.uber.org/zap"
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)
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type options struct {
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dumpFileStorage storeapi.Storage
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checkpointStorage storeapi.Storage
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checkpointName string
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promFactory promutil.Factory
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promRegistry promutil.Registry
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logger log.Logger
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dupIndicator *atomic.Bool
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// only used in tests
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db *sql.DB
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}
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// Option is a function that configures a lightning task.
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type Option func(*options)
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// WithDumpFileStorage sets the external storage to a lightning task.
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// Typically, the external storage is set when lightning is integrated with dataflow engine by DM.
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func WithDumpFileStorage(s storeapi.Storage) Option {
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return func(o *options) {
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o.dumpFileStorage = s
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}
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}
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// WithCheckpointStorage sets the checkpoint name in external storage to a lightning task.
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// Typically, the checkpoint name is set when lightning is integrated with dataflow engine by DM.
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func WithCheckpointStorage(s storeapi.Storage, cpName string) Option {
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return func(o *options) {
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o.checkpointStorage = s
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o.checkpointName = cpName
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}
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}
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// WithPromFactory sets the prometheus factory to a lightning task.
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func WithPromFactory(f promutil.Factory) Option {
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return func(o *options) {
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o.promFactory = f
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}
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}
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// WithPromRegistry sets the prometheus registry to a lightning task.
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// The task metrics will be registered to the registry before the task starts
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// and unregistered after the task ends.
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func WithPromRegistry(r promutil.Registry) Option {
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return func(o *options) {
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o.promRegistry = r
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}
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}
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// WithLogger sets the logger to a lightning task.
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func WithLogger(logger *zap.Logger) Option {
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return func(o *options) {
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o.logger = log.Logger{Logger: logger}
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}
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}
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// WithDupIndicator sets a *bool to indicate duplicate detection has found duplicate data.
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func WithDupIndicator(b *atomic.Bool) Option {
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return func(o *options) {
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o.dupIndicator = b
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}
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}
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