forked from TrueCloudLab/restic
834 lines
25 KiB
Go
834 lines
25 KiB
Go
// Copyright 2015 Google Inc. All Rights Reserved.
|
|
//
|
|
// 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,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package bigquery
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"time"
|
|
|
|
"cloud.google.com/go/internal"
|
|
"cloud.google.com/go/internal/optional"
|
|
"cloud.google.com/go/internal/version"
|
|
gax "github.com/googleapis/gax-go"
|
|
|
|
"golang.org/x/net/context"
|
|
bq "google.golang.org/api/bigquery/v2"
|
|
"google.golang.org/api/googleapi"
|
|
)
|
|
|
|
// service provides an internal abstraction to isolate the generated
|
|
// BigQuery API; most of this package uses this interface instead.
|
|
// The single implementation, *bigqueryService, contains all the knowledge
|
|
// of the generated BigQuery API.
|
|
type service interface {
|
|
// Jobs
|
|
insertJob(ctx context.Context, projectId string, conf *insertJobConf) (*Job, error)
|
|
getJob(ctx context.Context, projectId, jobID string) (*Job, error)
|
|
jobCancel(ctx context.Context, projectId, jobID string) error
|
|
jobStatus(ctx context.Context, projectId, jobID string) (*JobStatus, error)
|
|
|
|
// Tables
|
|
createTable(ctx context.Context, conf *createTableConf) error
|
|
getTableMetadata(ctx context.Context, projectID, datasetID, tableID string) (*TableMetadata, error)
|
|
deleteTable(ctx context.Context, projectID, datasetID, tableID string) error
|
|
|
|
// listTables returns a page of Tables and a next page token. Note: the Tables do not have their c field populated.
|
|
listTables(ctx context.Context, projectID, datasetID string, pageSize int, pageToken string) ([]*Table, string, error)
|
|
patchTable(ctx context.Context, projectID, datasetID, tableID string, conf *patchTableConf, etag string) (*TableMetadata, error)
|
|
|
|
// Table data
|
|
readTabledata(ctx context.Context, conf *readTableConf, pageToken string) (*readDataResult, error)
|
|
insertRows(ctx context.Context, projectID, datasetID, tableID string, rows []*insertionRow, conf *insertRowsConf) error
|
|
|
|
// Datasets
|
|
insertDataset(ctx context.Context, datasetID, projectID string) error
|
|
deleteDataset(ctx context.Context, datasetID, projectID string) error
|
|
getDatasetMetadata(ctx context.Context, projectID, datasetID string) (*DatasetMetadata, error)
|
|
patchDataset(ctx context.Context, projectID, datasetID string, dm *DatasetMetadataToUpdate, etag string) (*DatasetMetadata, error)
|
|
|
|
// Misc
|
|
|
|
// Waits for a query to complete.
|
|
waitForQuery(ctx context.Context, projectID, jobID string) (Schema, error)
|
|
|
|
// listDatasets returns a page of Datasets and a next page token. Note: the Datasets do not have their c field populated.
|
|
listDatasets(ctx context.Context, projectID string, maxResults int, pageToken string, all bool, filter string) ([]*Dataset, string, error)
|
|
}
|
|
|
|
var xGoogHeader = fmt.Sprintf("gl-go/%s gccl/%s", version.Go(), version.Repo)
|
|
|
|
func setClientHeader(headers http.Header) {
|
|
headers.Set("x-goog-api-client", xGoogHeader)
|
|
}
|
|
|
|
type bigqueryService struct {
|
|
s *bq.Service
|
|
}
|
|
|
|
func newBigqueryService(client *http.Client, endpoint string) (*bigqueryService, error) {
|
|
s, err := bq.New(client)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("constructing bigquery client: %v", err)
|
|
}
|
|
s.BasePath = endpoint
|
|
|
|
return &bigqueryService{s: s}, nil
|
|
}
|
|
|
|
// getPages calls the supplied getPage function repeatedly until there are no pages left to get.
|
|
// token is the token of the initial page to start from. Use an empty string to start from the beginning.
|
|
func getPages(token string, getPage func(token string) (nextToken string, err error)) error {
|
|
for {
|
|
var err error
|
|
token, err = getPage(token)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if token == "" {
|
|
return nil
|
|
}
|
|
}
|
|
}
|
|
|
|
type insertJobConf struct {
|
|
job *bq.Job
|
|
media io.Reader
|
|
}
|
|
|
|
// Calls the Jobs.Insert RPC and returns a Job. Callers must set the returned Job's
|
|
// client.
|
|
func (s *bigqueryService) insertJob(ctx context.Context, projectID string, conf *insertJobConf) (*Job, error) {
|
|
call := s.s.Jobs.Insert(projectID, conf.job).Context(ctx)
|
|
setClientHeader(call.Header())
|
|
if conf.media != nil {
|
|
call.Media(conf.media)
|
|
}
|
|
var res *bq.Job
|
|
var err error
|
|
invoke := func() error {
|
|
res, err = call.Do()
|
|
return err
|
|
}
|
|
// A job with a client-generated ID can be retried; the presence of the
|
|
// ID makes the insert operation idempotent.
|
|
// We don't retry if there is media, because it is an io.Reader. We'd
|
|
// have to read the contents and keep it in memory, and that could be expensive.
|
|
// TODO(jba): Look into retrying if media != nil.
|
|
if conf.job.JobReference != nil && conf.media == nil {
|
|
err = runWithRetry(ctx, invoke)
|
|
} else {
|
|
err = invoke()
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
var dt *bq.TableReference
|
|
if qc := res.Configuration.Query; qc != nil {
|
|
dt = qc.DestinationTable
|
|
}
|
|
return &Job{
|
|
projectID: projectID,
|
|
jobID: res.JobReference.JobId,
|
|
destinationTable: dt,
|
|
}, nil
|
|
}
|
|
|
|
type pagingConf struct {
|
|
recordsPerRequest int64
|
|
setRecordsPerRequest bool
|
|
|
|
startIndex uint64
|
|
}
|
|
|
|
type readTableConf struct {
|
|
projectID, datasetID, tableID string
|
|
paging pagingConf
|
|
schema Schema // lazily initialized when the first page of data is fetched.
|
|
}
|
|
|
|
func (conf *readTableConf) fetch(ctx context.Context, s service, token string) (*readDataResult, error) {
|
|
return s.readTabledata(ctx, conf, token)
|
|
}
|
|
|
|
func (conf *readTableConf) setPaging(pc *pagingConf) { conf.paging = *pc }
|
|
|
|
type readDataResult struct {
|
|
pageToken string
|
|
rows [][]Value
|
|
totalRows uint64
|
|
schema Schema
|
|
}
|
|
|
|
func (s *bigqueryService) readTabledata(ctx context.Context, conf *readTableConf, pageToken string) (*readDataResult, error) {
|
|
// Prepare request to fetch one page of table data.
|
|
req := s.s.Tabledata.List(conf.projectID, conf.datasetID, conf.tableID)
|
|
setClientHeader(req.Header())
|
|
if pageToken != "" {
|
|
req.PageToken(pageToken)
|
|
} else {
|
|
req.StartIndex(conf.paging.startIndex)
|
|
}
|
|
|
|
if conf.paging.setRecordsPerRequest {
|
|
req.MaxResults(conf.paging.recordsPerRequest)
|
|
}
|
|
|
|
// Fetch the table schema in the background, if necessary.
|
|
errc := make(chan error, 1)
|
|
if conf.schema != nil {
|
|
errc <- nil
|
|
} else {
|
|
go func() {
|
|
var t *bq.Table
|
|
err := runWithRetry(ctx, func() (err error) {
|
|
t, err = s.s.Tables.Get(conf.projectID, conf.datasetID, conf.tableID).
|
|
Fields("schema").
|
|
Context(ctx).
|
|
Do()
|
|
return err
|
|
})
|
|
if err == nil && t.Schema != nil {
|
|
conf.schema = convertTableSchema(t.Schema)
|
|
}
|
|
errc <- err
|
|
}()
|
|
}
|
|
var res *bq.TableDataList
|
|
err := runWithRetry(ctx, func() (err error) {
|
|
res, err = req.Context(ctx).Do()
|
|
return err
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
err = <-errc
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
result := &readDataResult{
|
|
pageToken: res.PageToken,
|
|
totalRows: uint64(res.TotalRows),
|
|
schema: conf.schema,
|
|
}
|
|
result.rows, err = convertRows(res.Rows, conf.schema)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return result, nil
|
|
}
|
|
|
|
func (s *bigqueryService) waitForQuery(ctx context.Context, projectID, jobID string) (Schema, error) {
|
|
// Use GetQueryResults only to wait for completion, not to read results.
|
|
req := s.s.Jobs.GetQueryResults(projectID, jobID).Context(ctx).MaxResults(0)
|
|
setClientHeader(req.Header())
|
|
backoff := gax.Backoff{
|
|
Initial: 1 * time.Second,
|
|
Multiplier: 2,
|
|
Max: 60 * time.Second,
|
|
}
|
|
var res *bq.GetQueryResultsResponse
|
|
err := internal.Retry(ctx, backoff, func() (stop bool, err error) {
|
|
res, err = req.Do()
|
|
if err != nil {
|
|
return !retryableError(err), err
|
|
}
|
|
if !res.JobComplete { // GetQueryResults may return early without error; retry.
|
|
return false, nil
|
|
}
|
|
return true, nil
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return convertTableSchema(res.Schema), nil
|
|
}
|
|
|
|
type insertRowsConf struct {
|
|
templateSuffix string
|
|
ignoreUnknownValues bool
|
|
skipInvalidRows bool
|
|
}
|
|
|
|
func (s *bigqueryService) insertRows(ctx context.Context, projectID, datasetID, tableID string, rows []*insertionRow, conf *insertRowsConf) error {
|
|
req := &bq.TableDataInsertAllRequest{
|
|
TemplateSuffix: conf.templateSuffix,
|
|
IgnoreUnknownValues: conf.ignoreUnknownValues,
|
|
SkipInvalidRows: conf.skipInvalidRows,
|
|
}
|
|
for _, row := range rows {
|
|
m := make(map[string]bq.JsonValue)
|
|
for k, v := range row.Row {
|
|
m[k] = bq.JsonValue(v)
|
|
}
|
|
req.Rows = append(req.Rows, &bq.TableDataInsertAllRequestRows{
|
|
InsertId: row.InsertID,
|
|
Json: m,
|
|
})
|
|
}
|
|
call := s.s.Tabledata.InsertAll(projectID, datasetID, tableID, req).Context(ctx)
|
|
setClientHeader(call.Header())
|
|
var res *bq.TableDataInsertAllResponse
|
|
err := runWithRetry(ctx, func() (err error) {
|
|
res, err = call.Do()
|
|
return err
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if len(res.InsertErrors) == 0 {
|
|
return nil
|
|
}
|
|
|
|
var errs PutMultiError
|
|
for _, e := range res.InsertErrors {
|
|
if int(e.Index) > len(rows) {
|
|
return fmt.Errorf("internal error: unexpected row index: %v", e.Index)
|
|
}
|
|
rie := RowInsertionError{
|
|
InsertID: rows[e.Index].InsertID,
|
|
RowIndex: int(e.Index),
|
|
}
|
|
for _, errp := range e.Errors {
|
|
rie.Errors = append(rie.Errors, errorFromErrorProto(errp))
|
|
}
|
|
errs = append(errs, rie)
|
|
}
|
|
return errs
|
|
}
|
|
|
|
func (s *bigqueryService) getJob(ctx context.Context, projectID, jobID string) (*Job, error) {
|
|
job, err := s.getJobInternal(ctx, projectID, jobID, "configuration")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var isQuery bool
|
|
var dest *bq.TableReference
|
|
if job.Configuration.Query != nil {
|
|
isQuery = true
|
|
dest = job.Configuration.Query.DestinationTable
|
|
}
|
|
return &Job{
|
|
projectID: projectID,
|
|
jobID: jobID,
|
|
isQuery: isQuery,
|
|
destinationTable: dest,
|
|
}, nil
|
|
}
|
|
|
|
func (s *bigqueryService) jobStatus(ctx context.Context, projectID, jobID string) (*JobStatus, error) {
|
|
job, err := s.getJobInternal(ctx, projectID, jobID, "status", "statistics")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
st, err := jobStatusFromProto(job.Status)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
st.Statistics = jobStatisticsFromProto(job.Statistics)
|
|
return st, nil
|
|
}
|
|
|
|
func (s *bigqueryService) getJobInternal(ctx context.Context, projectID, jobID string, fields ...googleapi.Field) (*bq.Job, error) {
|
|
var job *bq.Job
|
|
call := s.s.Jobs.Get(projectID, jobID).
|
|
Fields(fields...).
|
|
Context(ctx)
|
|
setClientHeader(call.Header())
|
|
err := runWithRetry(ctx, func() (err error) {
|
|
job, err = call.Do()
|
|
return err
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return job, nil
|
|
}
|
|
|
|
func (s *bigqueryService) jobCancel(ctx context.Context, projectID, jobID string) error {
|
|
// Jobs.Cancel returns a job entity, but the only relevant piece of
|
|
// data it may contain (the status of the job) is unreliable. From the
|
|
// docs: "This call will return immediately, and the client will need
|
|
// to poll for the job status to see if the cancel completed
|
|
// successfully". So it would be misleading to return a status.
|
|
call := s.s.Jobs.Cancel(projectID, jobID).
|
|
Fields(). // We don't need any of the response data.
|
|
Context(ctx)
|
|
setClientHeader(call.Header())
|
|
return runWithRetry(ctx, func() error {
|
|
_, err := call.Do()
|
|
return err
|
|
})
|
|
}
|
|
|
|
var stateMap = map[string]State{"PENDING": Pending, "RUNNING": Running, "DONE": Done}
|
|
|
|
func jobStatusFromProto(status *bq.JobStatus) (*JobStatus, error) {
|
|
state, ok := stateMap[status.State]
|
|
if !ok {
|
|
return nil, fmt.Errorf("unexpected job state: %v", status.State)
|
|
}
|
|
|
|
newStatus := &JobStatus{
|
|
State: state,
|
|
err: nil,
|
|
}
|
|
if err := errorFromErrorProto(status.ErrorResult); state == Done && err != nil {
|
|
newStatus.err = err
|
|
}
|
|
|
|
for _, ep := range status.Errors {
|
|
newStatus.Errors = append(newStatus.Errors, errorFromErrorProto(ep))
|
|
}
|
|
return newStatus, nil
|
|
}
|
|
|
|
func jobStatisticsFromProto(s *bq.JobStatistics) *JobStatistics {
|
|
js := &JobStatistics{
|
|
CreationTime: unixMillisToTime(s.CreationTime),
|
|
StartTime: unixMillisToTime(s.StartTime),
|
|
EndTime: unixMillisToTime(s.EndTime),
|
|
TotalBytesProcessed: s.TotalBytesProcessed,
|
|
}
|
|
switch {
|
|
case s.Extract != nil:
|
|
js.Details = &ExtractStatistics{
|
|
DestinationURIFileCounts: []int64(s.Extract.DestinationUriFileCounts),
|
|
}
|
|
case s.Load != nil:
|
|
js.Details = &LoadStatistics{
|
|
InputFileBytes: s.Load.InputFileBytes,
|
|
InputFiles: s.Load.InputFiles,
|
|
OutputBytes: s.Load.OutputBytes,
|
|
OutputRows: s.Load.OutputRows,
|
|
}
|
|
case s.Query != nil:
|
|
var names []string
|
|
for _, qp := range s.Query.UndeclaredQueryParameters {
|
|
names = append(names, qp.Name)
|
|
}
|
|
var tables []*Table
|
|
for _, tr := range s.Query.ReferencedTables {
|
|
tables = append(tables, convertTableReference(tr))
|
|
}
|
|
js.Details = &QueryStatistics{
|
|
BillingTier: s.Query.BillingTier,
|
|
CacheHit: s.Query.CacheHit,
|
|
StatementType: s.Query.StatementType,
|
|
TotalBytesBilled: s.Query.TotalBytesBilled,
|
|
TotalBytesProcessed: s.Query.TotalBytesProcessed,
|
|
NumDMLAffectedRows: s.Query.NumDmlAffectedRows,
|
|
QueryPlan: queryPlanFromProto(s.Query.QueryPlan),
|
|
Schema: convertTableSchema(s.Query.Schema),
|
|
ReferencedTables: tables,
|
|
UndeclaredQueryParameterNames: names,
|
|
}
|
|
}
|
|
return js
|
|
}
|
|
|
|
func queryPlanFromProto(stages []*bq.ExplainQueryStage) []*ExplainQueryStage {
|
|
var res []*ExplainQueryStage
|
|
for _, s := range stages {
|
|
var steps []*ExplainQueryStep
|
|
for _, p := range s.Steps {
|
|
steps = append(steps, &ExplainQueryStep{
|
|
Kind: p.Kind,
|
|
Substeps: p.Substeps,
|
|
})
|
|
}
|
|
res = append(res, &ExplainQueryStage{
|
|
ComputeRatioAvg: s.ComputeRatioAvg,
|
|
ComputeRatioMax: s.ComputeRatioMax,
|
|
ID: s.Id,
|
|
Name: s.Name,
|
|
ReadRatioAvg: s.ReadRatioAvg,
|
|
ReadRatioMax: s.ReadRatioMax,
|
|
RecordsRead: s.RecordsRead,
|
|
RecordsWritten: s.RecordsWritten,
|
|
Status: s.Status,
|
|
Steps: steps,
|
|
WaitRatioAvg: s.WaitRatioAvg,
|
|
WaitRatioMax: s.WaitRatioMax,
|
|
WriteRatioAvg: s.WriteRatioAvg,
|
|
WriteRatioMax: s.WriteRatioMax,
|
|
})
|
|
}
|
|
return res
|
|
}
|
|
|
|
// listTables returns a subset of tables that belong to a dataset, and a token for fetching the next subset.
|
|
func (s *bigqueryService) listTables(ctx context.Context, projectID, datasetID string, pageSize int, pageToken string) ([]*Table, string, error) {
|
|
var tables []*Table
|
|
req := s.s.Tables.List(projectID, datasetID).
|
|
PageToken(pageToken).
|
|
Context(ctx)
|
|
setClientHeader(req.Header())
|
|
if pageSize > 0 {
|
|
req.MaxResults(int64(pageSize))
|
|
}
|
|
var res *bq.TableList
|
|
err := runWithRetry(ctx, func() (err error) {
|
|
res, err = req.Do()
|
|
return err
|
|
})
|
|
if err != nil {
|
|
return nil, "", err
|
|
}
|
|
for _, t := range res.Tables {
|
|
tables = append(tables, convertTableReference(t.TableReference))
|
|
}
|
|
return tables, res.NextPageToken, nil
|
|
}
|
|
|
|
type createTableConf struct {
|
|
projectID, datasetID, tableID string
|
|
expiration time.Time
|
|
viewQuery string
|
|
schema *bq.TableSchema
|
|
useStandardSQL bool
|
|
useLegacySQL bool
|
|
timePartitioning *TimePartitioning
|
|
}
|
|
|
|
// createTable creates a table in the BigQuery service.
|
|
// expiration is an optional time after which the table will be deleted and its storage reclaimed.
|
|
// If viewQuery is non-empty, the created table will be of type VIEW.
|
|
// Note: expiration can only be set during table creation.
|
|
// Note: after table creation, a view can be modified only if its table was initially created with a view.
|
|
func (s *bigqueryService) createTable(ctx context.Context, conf *createTableConf) error {
|
|
if conf.useStandardSQL && conf.useLegacySQL {
|
|
return errors.New("bigquery: cannot provide both UseStandardSQL and UseLegacySQL")
|
|
}
|
|
table := &bq.Table{
|
|
// TODO(jba): retry? Is this always idempotent?
|
|
TableReference: &bq.TableReference{
|
|
ProjectId: conf.projectID,
|
|
DatasetId: conf.datasetID,
|
|
TableId: conf.tableID,
|
|
},
|
|
}
|
|
if !conf.expiration.IsZero() {
|
|
table.ExpirationTime = conf.expiration.UnixNano() / 1e6
|
|
}
|
|
// TODO(jba): make it impossible to provide both a view query and a schema.
|
|
if conf.viewQuery != "" {
|
|
table.View = &bq.ViewDefinition{
|
|
Query: conf.viewQuery,
|
|
}
|
|
if conf.useStandardSQL {
|
|
table.View.UseLegacySql = false
|
|
table.View.ForceSendFields = append(table.View.ForceSendFields, "UseLegacySql")
|
|
}
|
|
if conf.useLegacySQL {
|
|
table.View.UseLegacySql = true
|
|
}
|
|
}
|
|
if conf.schema != nil {
|
|
table.Schema = conf.schema
|
|
}
|
|
if conf.timePartitioning != nil {
|
|
table.TimePartitioning = &bq.TimePartitioning{
|
|
Type: "DAY",
|
|
ExpirationMs: int64(conf.timePartitioning.Expiration.Seconds() * 1000),
|
|
}
|
|
}
|
|
|
|
req := s.s.Tables.Insert(conf.projectID, conf.datasetID, table).Context(ctx)
|
|
setClientHeader(req.Header())
|
|
_, err := req.Do()
|
|
return err
|
|
}
|
|
|
|
func (s *bigqueryService) getTableMetadata(ctx context.Context, projectID, datasetID, tableID string) (*TableMetadata, error) {
|
|
req := s.s.Tables.Get(projectID, datasetID, tableID).Context(ctx)
|
|
setClientHeader(req.Header())
|
|
var table *bq.Table
|
|
err := runWithRetry(ctx, func() (err error) {
|
|
table, err = req.Do()
|
|
return err
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return bqTableToMetadata(table), nil
|
|
}
|
|
|
|
func (s *bigqueryService) deleteTable(ctx context.Context, projectID, datasetID, tableID string) error {
|
|
req := s.s.Tables.Delete(projectID, datasetID, tableID).Context(ctx)
|
|
setClientHeader(req.Header())
|
|
return runWithRetry(ctx, func() error { return req.Do() })
|
|
}
|
|
|
|
func bqTableToMetadata(t *bq.Table) *TableMetadata {
|
|
md := &TableMetadata{
|
|
Description: t.Description,
|
|
Name: t.FriendlyName,
|
|
Type: TableType(t.Type),
|
|
ID: t.Id,
|
|
NumBytes: t.NumBytes,
|
|
NumRows: t.NumRows,
|
|
ExpirationTime: unixMillisToTime(t.ExpirationTime),
|
|
CreationTime: unixMillisToTime(t.CreationTime),
|
|
LastModifiedTime: unixMillisToTime(int64(t.LastModifiedTime)),
|
|
ETag: t.Etag,
|
|
}
|
|
if t.Schema != nil {
|
|
md.Schema = convertTableSchema(t.Schema)
|
|
}
|
|
if t.View != nil {
|
|
md.View = t.View.Query
|
|
}
|
|
if t.TimePartitioning != nil {
|
|
md.TimePartitioning = &TimePartitioning{
|
|
Expiration: time.Duration(t.TimePartitioning.ExpirationMs) * time.Millisecond,
|
|
}
|
|
}
|
|
if t.StreamingBuffer != nil {
|
|
md.StreamingBuffer = &StreamingBuffer{
|
|
EstimatedBytes: t.StreamingBuffer.EstimatedBytes,
|
|
EstimatedRows: t.StreamingBuffer.EstimatedRows,
|
|
OldestEntryTime: unixMillisToTime(int64(t.StreamingBuffer.OldestEntryTime)),
|
|
}
|
|
}
|
|
return md
|
|
}
|
|
|
|
func bqDatasetToMetadata(d *bq.Dataset) *DatasetMetadata {
|
|
/// TODO(jba): access
|
|
return &DatasetMetadata{
|
|
CreationTime: unixMillisToTime(d.CreationTime),
|
|
LastModifiedTime: unixMillisToTime(d.LastModifiedTime),
|
|
DefaultTableExpiration: time.Duration(d.DefaultTableExpirationMs) * time.Millisecond,
|
|
Description: d.Description,
|
|
Name: d.FriendlyName,
|
|
ID: d.Id,
|
|
Location: d.Location,
|
|
Labels: d.Labels,
|
|
ETag: d.Etag,
|
|
}
|
|
}
|
|
|
|
// Convert a number of milliseconds since the Unix epoch to a time.Time.
|
|
// Treat an input of zero specially: convert it to the zero time,
|
|
// rather than the start of the epoch.
|
|
func unixMillisToTime(m int64) time.Time {
|
|
if m == 0 {
|
|
return time.Time{}
|
|
}
|
|
return time.Unix(0, m*1e6)
|
|
}
|
|
|
|
func convertTableReference(tr *bq.TableReference) *Table {
|
|
return &Table{
|
|
ProjectID: tr.ProjectId,
|
|
DatasetID: tr.DatasetId,
|
|
TableID: tr.TableId,
|
|
}
|
|
}
|
|
|
|
// patchTableConf contains fields to be patched.
|
|
type patchTableConf struct {
|
|
// These fields are omitted from the patch operation if nil.
|
|
Description *string
|
|
Name *string
|
|
Schema Schema
|
|
ExpirationTime time.Time
|
|
}
|
|
|
|
func (s *bigqueryService) patchTable(ctx context.Context, projectID, datasetID, tableID string, conf *patchTableConf, etag string) (*TableMetadata, error) {
|
|
t := &bq.Table{}
|
|
forceSend := func(field string) {
|
|
t.ForceSendFields = append(t.ForceSendFields, field)
|
|
}
|
|
|
|
if conf.Description != nil {
|
|
t.Description = *conf.Description
|
|
forceSend("Description")
|
|
}
|
|
if conf.Name != nil {
|
|
t.FriendlyName = *conf.Name
|
|
forceSend("FriendlyName")
|
|
}
|
|
if conf.Schema != nil {
|
|
t.Schema = conf.Schema.asTableSchema()
|
|
forceSend("Schema")
|
|
}
|
|
if !conf.ExpirationTime.IsZero() {
|
|
t.ExpirationTime = conf.ExpirationTime.UnixNano() / 1e6
|
|
forceSend("ExpirationTime")
|
|
}
|
|
call := s.s.Tables.Patch(projectID, datasetID, tableID, t).Context(ctx)
|
|
setClientHeader(call.Header())
|
|
if etag != "" {
|
|
call.Header().Set("If-Match", etag)
|
|
}
|
|
table, err := call.Do()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return bqTableToMetadata(table), nil
|
|
}
|
|
|
|
func (s *bigqueryService) insertDataset(ctx context.Context, datasetID, projectID string) error {
|
|
// TODO(jba): retry?
|
|
ds := &bq.Dataset{
|
|
DatasetReference: &bq.DatasetReference{DatasetId: datasetID},
|
|
}
|
|
req := s.s.Datasets.Insert(projectID, ds).Context(ctx)
|
|
setClientHeader(req.Header())
|
|
_, err := req.Do()
|
|
return err
|
|
}
|
|
|
|
func (s *bigqueryService) patchDataset(ctx context.Context, projectID, datasetID string, dm *DatasetMetadataToUpdate, etag string) (*DatasetMetadata, error) {
|
|
ds := bqDatasetFromMetadata(dm)
|
|
call := s.s.Datasets.Patch(projectID, datasetID, ds).Context(ctx)
|
|
setClientHeader(call.Header())
|
|
if etag != "" {
|
|
call.Header().Set("If-Match", etag)
|
|
}
|
|
ds2, err := call.Do()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return bqDatasetToMetadata(ds2), nil
|
|
}
|
|
|
|
func bqDatasetFromMetadata(dm *DatasetMetadataToUpdate) *bq.Dataset {
|
|
ds := &bq.Dataset{}
|
|
forceSend := func(field string) {
|
|
ds.ForceSendFields = append(ds.ForceSendFields, field)
|
|
}
|
|
|
|
if dm.Description != nil {
|
|
ds.Description = optional.ToString(dm.Description)
|
|
forceSend("Description")
|
|
}
|
|
if dm.Name != nil {
|
|
ds.FriendlyName = optional.ToString(dm.Name)
|
|
forceSend("FriendlyName")
|
|
}
|
|
if dm.DefaultTableExpiration != nil {
|
|
dur := optional.ToDuration(dm.DefaultTableExpiration)
|
|
if dur == 0 {
|
|
// Send a null to delete the field.
|
|
ds.NullFields = append(ds.NullFields, "DefaultTableExpirationMs")
|
|
} else {
|
|
ds.DefaultTableExpirationMs = int64(dur.Seconds() * 1000)
|
|
}
|
|
}
|
|
if dm.setLabels != nil || dm.deleteLabels != nil {
|
|
ds.Labels = map[string]string{}
|
|
for k, v := range dm.setLabels {
|
|
ds.Labels[k] = v
|
|
}
|
|
if len(ds.Labels) == 0 && len(dm.deleteLabels) > 0 {
|
|
forceSend("Labels")
|
|
}
|
|
for l := range dm.deleteLabels {
|
|
ds.NullFields = append(ds.NullFields, "Labels."+l)
|
|
}
|
|
}
|
|
return ds
|
|
}
|
|
|
|
func (s *bigqueryService) deleteDataset(ctx context.Context, datasetID, projectID string) error {
|
|
req := s.s.Datasets.Delete(projectID, datasetID).Context(ctx)
|
|
setClientHeader(req.Header())
|
|
return runWithRetry(ctx, func() error { return req.Do() })
|
|
}
|
|
|
|
func (s *bigqueryService) getDatasetMetadata(ctx context.Context, projectID, datasetID string) (*DatasetMetadata, error) {
|
|
req := s.s.Datasets.Get(projectID, datasetID).Context(ctx)
|
|
setClientHeader(req.Header())
|
|
var ds *bq.Dataset
|
|
if err := runWithRetry(ctx, func() (err error) {
|
|
ds, err = req.Do()
|
|
return err
|
|
}); err != nil {
|
|
return nil, err
|
|
}
|
|
return bqDatasetToMetadata(ds), nil
|
|
}
|
|
|
|
func (s *bigqueryService) listDatasets(ctx context.Context, projectID string, maxResults int, pageToken string, all bool, filter string) ([]*Dataset, string, error) {
|
|
req := s.s.Datasets.List(projectID).
|
|
Context(ctx).
|
|
PageToken(pageToken).
|
|
All(all)
|
|
setClientHeader(req.Header())
|
|
if maxResults > 0 {
|
|
req.MaxResults(int64(maxResults))
|
|
}
|
|
if filter != "" {
|
|
req.Filter(filter)
|
|
}
|
|
var res *bq.DatasetList
|
|
err := runWithRetry(ctx, func() (err error) {
|
|
res, err = req.Do()
|
|
return err
|
|
})
|
|
if err != nil {
|
|
return nil, "", err
|
|
}
|
|
var datasets []*Dataset
|
|
for _, d := range res.Datasets {
|
|
datasets = append(datasets, s.convertListedDataset(d))
|
|
}
|
|
return datasets, res.NextPageToken, nil
|
|
}
|
|
|
|
func (s *bigqueryService) convertListedDataset(d *bq.DatasetListDatasets) *Dataset {
|
|
return &Dataset{
|
|
ProjectID: d.DatasetReference.ProjectId,
|
|
DatasetID: d.DatasetReference.DatasetId,
|
|
}
|
|
}
|
|
|
|
// runWithRetry calls the function until it returns nil or a non-retryable error, or
|
|
// the context is done.
|
|
// See the similar function in ../storage/invoke.go. The main difference is the
|
|
// reason for retrying.
|
|
func runWithRetry(ctx context.Context, call func() error) error {
|
|
backoff := gax.Backoff{
|
|
Initial: 2 * time.Second,
|
|
Max: 32 * time.Second,
|
|
Multiplier: 2,
|
|
}
|
|
return internal.Retry(ctx, backoff, func() (stop bool, err error) {
|
|
err = call()
|
|
if err == nil {
|
|
return true, nil
|
|
}
|
|
return !retryableError(err), err
|
|
})
|
|
}
|
|
|
|
// Use the criteria in https://cloud.google.com/bigquery/troubleshooting-errors.
|
|
func retryableError(err error) bool {
|
|
e, ok := err.(*googleapi.Error)
|
|
if !ok {
|
|
return false
|
|
}
|
|
var reason string
|
|
if len(e.Errors) > 0 {
|
|
reason = e.Errors[0].Reason
|
|
}
|
|
return reason == "backendError" && (e.Code == 500 || e.Code == 503)
|
|
}
|