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cli_processor_query.go
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/
cli_processor_query.go
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// Copyright 2021 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 cli
import (
"context"
"github.com/spf13/cobra"
"github.com/tikv/migration/cdc/cdc/model"
apiv1client "github.com/tikv/migration/cdc/pkg/api/v1"
cmdcontext "github.com/tikv/migration/cdc/pkg/cmd/context"
"github.com/tikv/migration/cdc/pkg/cmd/factory"
"github.com/tikv/migration/cdc/pkg/cmd/util"
"github.com/tikv/migration/cdc/pkg/etcd"
)
type processorMeta struct {
Status *model.TaskStatus `json:"status"`
Position *model.TaskPosition `json:"position"`
}
// queryProcessorOptions defines flags for the `cli processor query` command.
type queryProcessorOptions struct {
etcdClient *etcd.CDCEtcdClient
apiClient apiv1client.APIV1Interface
changefeedID string
captureID string
}
// newQueryProcessorOptions creates new options for the `cli changefeed query` command.
func newQueryProcessorOptions() *queryProcessorOptions {
return &queryProcessorOptions{}
}
// complete adapts from the command line args to the data and client required.
func (o *queryProcessorOptions) complete(f factory.Factory) error {
etcdClient, err := f.EtcdClient()
if err != nil {
return err
}
o.etcdClient = etcdClient
ctx := cmdcontext.GetDefaultContext()
owner, err := getOwnerCapture(ctx, o.etcdClient)
if err != nil {
return err
}
o.apiClient, err = apiv1client.NewAPIClient(owner.AdvertiseAddr, f.GetCredential())
if err != nil {
return err
}
return nil
}
// addFlags receives a *cobra.Command reference and binds
// flags related to template printing to it.
func (o *queryProcessorOptions) addFlags(cmd *cobra.Command) {
cmd.PersistentFlags().StringVarP(&o.changefeedID, "changefeed-id", "c", "", "Replication task (changefeed) ID")
cmd.PersistentFlags().StringVarP(&o.captureID, "capture-id", "p", "", "capture ID")
_ = cmd.MarkPersistentFlagRequired("changefeed-id")
_ = cmd.MarkPersistentFlagRequired("capture-id")
}
// run cli cmd with api client
func (o *queryProcessorOptions) runCliWithAPIClient(ctx context.Context, cmd *cobra.Command) error {
processor, err := o.apiClient.Processors().Get(ctx, o.changefeedID, o.captureID)
if err != nil {
return err
}
meta := &processorMeta{
Status: &model.TaskStatus{
KeySpans: processor.KeySpans,
// Operations, AdminJobType and ModRevision are vacant
},
Position: &model.TaskPosition{
CheckPointTs: processor.CheckPointTs,
ResolvedTs: processor.ResolvedTs,
Count: processor.Count,
Error: processor.Error,
},
}
return util.JSONPrint(cmd, meta)
}
// run runs the `cli processor query` command.
func (o *queryProcessorOptions) run(cmd *cobra.Command) error {
ctx := cmdcontext.GetDefaultContext()
return o.runCliWithAPIClient(ctx, cmd)
}
// newCmdQueryProcessor creates the `cli processor query` command.
func newCmdQueryProcessor(f factory.Factory) *cobra.Command {
o := newQueryProcessorOptions()
command := &cobra.Command{
Use: "query",
Short: "Query information and status of a sub replication task (processor)",
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
err := o.complete(f)
if err != nil {
return err
}
return o.run(cmd)
},
}
o.addFlags(command)
return command
}