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946c8399e2
Exclude minio-go for now (pin to 3.x.y).
74 lines
2.7 KiB
Go
74 lines
2.7 KiB
Go
// Copyright 2015 Google Inc. All Rights Reserved.
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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 bigquery
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import (
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"io"
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bq "google.golang.org/api/bigquery/v2"
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)
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// GCSReference is a reference to one or more Google Cloud Storage objects, which together constitute
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// an input or output to a BigQuery operation.
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type GCSReference struct {
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// URIs refer to Google Cloud Storage objects.
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URIs []string
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FileConfig
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// DestinationFormat is the format to use when writing exported files.
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// Allowed values are: CSV, Avro, JSON. The default is CSV.
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// CSV is not supported for tables with nested or repeated fields.
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DestinationFormat DataFormat
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// Compression specifies the type of compression to apply when writing data
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// to Google Cloud Storage, or using this GCSReference as an ExternalData
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// source with CSV or JSON SourceFormat. Default is None.
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Compression Compression
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}
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// NewGCSReference constructs a reference to one or more Google Cloud Storage objects, which together constitute a data source or destination.
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// In the simple case, a single URI in the form gs://bucket/object may refer to a single GCS object.
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// Data may also be split into mutiple files, if multiple URIs or URIs containing wildcards are provided.
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// Each URI may contain one '*' wildcard character, which (if present) must come after the bucket name.
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// For more information about the treatment of wildcards and multiple URIs,
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// see https://cloud.google.com/bigquery/exporting-data-from-bigquery#exportingmultiple
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func NewGCSReference(uri ...string) *GCSReference {
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return &GCSReference{URIs: uri}
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}
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// Compression is the type of compression to apply when writing data to Google Cloud Storage.
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type Compression string
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const (
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None Compression = "NONE"
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Gzip Compression = "GZIP"
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)
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func (gcs *GCSReference) populateLoadConfig(lc *bq.JobConfigurationLoad) io.Reader {
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lc.SourceUris = gcs.URIs
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gcs.FileConfig.populateLoadConfig(lc)
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return nil
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}
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func (gcs *GCSReference) toBQ() bq.ExternalDataConfiguration {
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conf := bq.ExternalDataConfiguration{
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Compression: string(gcs.Compression),
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SourceUris: append([]string{}, gcs.URIs...),
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}
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gcs.FileConfig.populateExternalDataConfig(&conf)
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return conf
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}
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