frostfs-node/pkg/morph/client/container/get.go
Alex Vanin 29d6ababae [] Adopt stackitems in morph requests
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-10-02 11:25:35 +03:00

53 lines
1.2 KiB
Go

package container
import (
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/pkg/errors"
)
// GetArgs groups the arguments
// of get container test invoke call.
type GetArgs struct {
cid []byte // container identifier
}
// GetValues groups the stack parameters
// returned by get container test invoke.
type GetValues struct {
cnr []byte // container in a binary form
}
// SetCID sets the container identifier
// in a binary format.
func (g *GetArgs) SetCID(v []byte) {
g.cid = v
}
// Container returns the container
// in a binary format.
func (g *GetValues) Container() []byte {
return g.cnr
}
// Get performs the test invoke of get container
// method of NeoFS Container contract.
func (c *Client) Get(args GetArgs) (*GetValues, error) {
prms, err := c.client.TestInvoke(
c.getMethod,
args.cid,
)
if err != nil {
return nil, errors.Wrapf(err, "could not perform test invocation (%s)", c.getMethod)
} else if ln := len(prms); ln != 1 {
return nil, errors.Errorf("unexpected stack item count (%s): %d", c.getMethod, ln)
}
cnrBytes, err := client.BytesFromStackItem(prms[0])
if err != nil {
return nil, errors.Wrapf(err, "could not get byte array from stack item (%s)", c.getMethod)
}
return &GetValues{
cnr: cnrBytes,
}, nil
}