github.com/uber/kraken@v0.1.4/lib/backend/gcsbackend/gcs.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //	   http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package gcsbackend
    15  
    16  import (
    17  	"io"
    18  
    19  	"cloud.google.com/go/storage"
    20  	"google.golang.org/api/iterator"
    21  )
    22  
    23  // GCS defines the operations we use in the GCS api. Useful for mocking.
    24  type GCS interface {
    25  	ObjectAttrs(objectName string) (*storage.ObjectAttrs, error)
    26  	Download(objectName string, w io.Writer) (int64, error)
    27  	Upload(objectName string, r io.Reader) (int64, error)
    28  	GetObjectIterator(prefix string) iterator.Pageable
    29  	NextPage(pager *iterator.Pager) ([]string, string, error)
    30  }