Ekaterina Lebedeva
242f0095d0
* Separated iteration through container ids from `ContainersOf()` so that it could be reused. * When listing containers we used to iterate through the the whole list of containers twice: first when reading from a contract, then when sending them. Now we can send batches of containers when reading from the contract. Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
package container
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import (
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"fmt"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
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cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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)
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// iterate iterates through a list of container identifiers belonging
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// to the specified user of FrostFS system. The list is composed
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// through Container contract call.
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//
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// Iterates through the identifiers of all FrostFS containers if pointer
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// to user identifier is nil.
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func (c *Client) iterate(idUser *user.ID, cb func(cid.ID) error) error {
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var rawID []byte
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if idUser != nil {
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rawID = idUser.WalletBytes()
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}
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prm := client.TestInvokePrm{}
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prm.SetMethod(listMethod)
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prm.SetArgs(rawID)
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res, err := c.client.TestInvoke(prm)
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if err != nil {
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return fmt.Errorf("test invoke (%s): %w", listMethod, err)
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} else if ln := len(res); ln != 1 {
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return fmt.Errorf("unexpected stack item count (%s): %d", listMethod, ln)
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}
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res, err = client.ArrayFromStackItem(res[0])
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if err != nil {
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return fmt.Errorf("get stack item array from stack item (%s): %w", listMethod, err)
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}
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for i := range res {
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id, err := getCIDfromStackItem(res[i])
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if err != nil {
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return err
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}
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if err = cb(id); err != nil {
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return err
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}
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}
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return nil
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}
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func getCIDfromStackItem(item stackitem.Item) (cid.ID, error) {
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rawID, err := client.BytesFromStackItem(item)
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if err != nil {
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return cid.ID{}, fmt.Errorf("get byte array from stack item (%s): %w", listMethod, err)
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}
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var id cid.ID
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err = id.Decode(rawID)
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if err != nil {
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return cid.ID{}, fmt.Errorf("decode container ID: %w", err)
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}
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return id, nil
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}
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