Johan Brandhorst-Satzkorn
d4d856e712
The new design uses four separate service functions; List, ListPage, ListRefresh and ListRefreshPage. The first two are used during the initial pagination phase and the latter two are used for any subsequent refresh phases.
51 lines
1.6 KiB
Go
51 lines
1.6 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package target
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import (
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"context"
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"time"
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"github.com/hashicorp/boundary/internal/errors"
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"github.com/hashicorp/boundary/internal/pagination"
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)
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// List lists up to page size targets, filtering out entries that
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// do not pass the filter item function. It will automatically request
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// more targets from the database, at page size chunks, to fill the page.
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// It returns a new list token used to continue pagination or refresh items.
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// Targets are ordered by create time descending (most recently created first).
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func List(
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ctx context.Context,
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grantsHash []byte,
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pageSize int,
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filterItemFn pagination.ListFilterFunc[Target],
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repo *Repository,
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) (*pagination.ListResponse[Target], error) {
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const op = "target.List"
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switch {
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case len(grantsHash) == 0:
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return nil, errors.New(ctx, errors.InvalidParameter, op, "missing grants hash")
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case pageSize < 1:
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return nil, errors.New(ctx, errors.InvalidParameter, op, "page size must be at least 1")
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case filterItemFn == nil:
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return nil, errors.New(ctx, errors.InvalidParameter, op, "missing filter item callback")
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case repo == nil:
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return nil, errors.New(ctx, errors.InvalidParameter, op, "missing repo")
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}
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listItemsFn := func(ctx context.Context, lastPageItem Target, limit int) ([]Target, time.Time, error) {
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opts := []Option{
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WithLimit(limit),
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}
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if lastPageItem != nil {
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opts = append(opts, WithStartPageAfterItem(lastPageItem))
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}
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return repo.listTargets(ctx, opts...)
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}
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return pagination.List(ctx, grantsHash, pageSize, filterItemFn, listItemsFn, repo.estimatedCount)
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}
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