80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
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// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package storj
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// ListDirection specifies listing direction
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type ListDirection int8
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const (
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// Before lists backwards from cursor, without cursor [NOT SUPPORTED]
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Before = ListDirection(-2)
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// Backward lists backwards from cursor, including cursor [NOT SUPPORTED]
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Backward = ListDirection(-1)
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// Forward lists forwards from cursor, including cursor
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Forward = ListDirection(1)
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// After lists forwards from cursor, without cursor
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After = ListDirection(2)
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)
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// ListOptions lists objects
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type ListOptions struct {
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Prefix Path
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Cursor Path // Cursor is relative to Prefix, full path is Prefix + Cursor
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Delimiter rune
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Recursive bool
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Direction ListDirection
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Limit int
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}
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// ObjectList is a list of objects
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type ObjectList struct {
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Bucket string
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Prefix Path
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More bool
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// Items paths are relative to Prefix
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// To get the full path use list.Prefix + list.Items[0].Path
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Items []Object
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}
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// NextPage returns options for listing the next page
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func (opts ListOptions) NextPage(list ObjectList) ListOptions {
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if !list.More || len(list.Items) == 0 {
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return ListOptions{}
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}
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return ListOptions{
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Prefix: opts.Prefix,
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Cursor: list.Items[len(list.Items)-1].Path,
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Direction: After,
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Limit: opts.Limit,
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}
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}
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// BucketListOptions lists objects
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type BucketListOptions struct {
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Cursor string
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Direction ListDirection
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Limit int
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}
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// BucketList is a list of buckets
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type BucketList struct {
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More bool
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Items []Bucket
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}
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// NextPage returns options for listing the next page
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func (opts BucketListOptions) NextPage(list BucketList) BucketListOptions {
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if !list.More || len(list.Items) == 0 {
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return BucketListOptions{}
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}
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return BucketListOptions{
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Cursor: list.Items[len(list.Items)-1].Name,
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Direction: After,
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Limit: opts.Limit,
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}
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}
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