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metadata.go
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metadata.go
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// Copyright 2022 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package metadata
import (
"context"
"github.com/coreos/go-semver/semver"
metaModel "github.com/pingcap/tiflow/engine/pkg/meta/model"
"go.uber.org/zap"
)
// MetaData is the metadata of dm.
type MetaData struct {
clusterInfoStore *ClusterInfoStore
jobStore *JobStore
unitStateStore *UnitStateStore
}
// NewMetaData creates a new MetaData instance
func NewMetaData(kvClient metaModel.KVClient, pLogger *zap.Logger) *MetaData {
return &MetaData{
clusterInfoStore: NewClusterInfoStore(kvClient),
jobStore: NewJobStore(kvClient, pLogger),
unitStateStore: NewUnitStateStore(kvClient),
}
}
// ClusterInfoStore returns internal infoStore
func (m *MetaData) ClusterInfoStore() *ClusterInfoStore {
return m.clusterInfoStore
}
// JobStore returns internal jobStore
func (m *MetaData) JobStore() *JobStore {
return m.jobStore
}
// UnitStateStore returns internal unitStateStore
func (m *MetaData) UnitStateStore() *UnitStateStore {
return m.unitStateStore
}
// Upgrade upgrades metadata.
func (m *MetaData) Upgrade(ctx context.Context, fromVer semver.Version) error {
// call infoStore.Upgrade/ddlStore.Upgrade if needed.
return m.jobStore.Upgrade(ctx, fromVer)
}