[#247] object: Introduce Patch type

* Make ToV2, FromV2 converters for Patch and PayloadPatch;
* Add unit-tests.

Signed-off-by: Airat Arifullin <a.arifullin@yadro.com>
This commit is contained in:
Airat Arifullin 2024-07-31 17:55:34 +03:00 committed by Evgenii Stratonikov
parent e83d6b7c6a
commit 6dd500def9
4 changed files with 265 additions and 1 deletions

2
go.mod
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@ -3,7 +3,7 @@ module git.frostfs.info/TrueCloudLab/frostfs-sdk-go
go 1.21
require (
git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240726072425-3dfa2f4fd65e
git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240730145254-c27b978770a3
git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240621131249-49e5270f673e
git.frostfs.info/TrueCloudLab/hrw v1.2.1
git.frostfs.info/TrueCloudLab/tzhash v1.8.0

BIN
go.sum

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103
object/patch.go Normal file
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@ -0,0 +1,103 @@
package object
import (
v2object "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
)
// Patch is a patch that's applied for an object.
type Patch struct {
// The address of the object for which the patch is being applied.
Address oid.Address
// The list of new attributes to set in the object's header.
NewAttributes []Attribute
// If ReplaceAttributes flag is true, then the header's attributes are reset and
// filled with NewAttributes. Otherwise, the attributes are just merged.
ReplaceAttributes bool
// Payload patch. If this field is not set, then it assumed such Patch patches only
// header (see NewAttributes, ReplaceAttributes).
PayloadPatch *PayloadPatch
}
func (p *Patch) ToV2() *v2object.PatchRequestBody {
if p == nil {
return nil
}
v2 := new(v2object.PatchRequestBody)
addrV2 := new(refs.Address)
p.Address.WriteToV2(addrV2)
v2.SetAddress(addrV2)
attrs := make([]v2object.Attribute, len(p.NewAttributes))
for i := range p.NewAttributes {
attrs[i] = *p.NewAttributes[i].ToV2()
}
v2.SetNewAttributes(attrs)
v2.SetReplaceAttributes(p.ReplaceAttributes)
v2.SetPatch(p.PayloadPatch.ToV2())
return v2
}
func (p *Patch) FromV2(patch *v2object.PatchRequestBody) {
if patch == nil {
return
}
if addr := patch.GetAddress(); addr != nil {
_ = p.Address.ReadFromV2(*addr)
}
newAttrs := patch.GetNewAttributes()
p.NewAttributes = make([]Attribute, len(newAttrs))
for i := range newAttrs {
p.NewAttributes[i] = *NewAttributeFromV2(&newAttrs[i])
}
p.ReplaceAttributes = patch.GetReplaceAttributes()
if v2patch := patch.GetPatch(); v2patch != nil {
p.PayloadPatch = new(PayloadPatch)
p.PayloadPatch.FromV2(v2patch)
}
}
// Patch is a patch that's applied for an object's payload.
type PayloadPatch struct {
// Range of the patch application.
Range *Range
// Chunk is the payload that replaces (or is appended to) the original object payload.
Chunk []byte
}
func (p *PayloadPatch) ToV2() *v2object.PatchRequestBodyPatch {
if p == nil {
return nil
}
v2 := new(v2object.PatchRequestBodyPatch)
v2.Chunk = p.Chunk
v2.Range = p.Range.ToV2()
return v2
}
func (p *PayloadPatch) FromV2(patch *v2object.PatchRequestBodyPatch) {
if patch == nil {
return
}
p.Chunk = patch.Chunk
if patch.Range != nil {
p.Range = NewRangeFromV2(patch.Range)
}
}

161
object/patch_test.go Normal file
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@ -0,0 +1,161 @@
package object
import (
"testing"
v2object "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
"github.com/stretchr/testify/require"
)
func TestPatch(t *testing.T) {
t.Run("to v2", func(t *testing.T) {
t.Run("only attributes", func(t *testing.T) {
var p Patch
var attr1, attr2 Attribute
attr1.SetKey("key1")
attr1.SetValue("val1")
attr2.SetKey("key2")
attr2.SetValue("val2")
p.Address = oidtest.Address()
p.NewAttributes = []Attribute{attr1, attr2}
p.ReplaceAttributes = true
v2patch := p.ToV2()
addr := new(oid.Address)
require.NotNil(t, v2patch.GetAddress())
addr.ReadFromV2(*v2patch.GetAddress())
require.True(t, p.Address.Equals(*addr))
require.Equal(t, p.ReplaceAttributes, v2patch.GetReplaceAttributes())
require.Nil(t, v2patch.GetPatch())
require.Len(t, v2patch.GetNewAttributes(), 2)
require.Equal(t, attr1.Key(), v2patch.GetNewAttributes()[0].GetKey())
require.Equal(t, attr2.Key(), v2patch.GetNewAttributes()[1].GetKey())
require.Equal(t, attr1.Value(), v2patch.GetNewAttributes()[0].GetValue())
require.Equal(t, attr2.Value(), v2patch.GetNewAttributes()[1].GetValue())
})
t.Run("with payload patch", func(t *testing.T) {
var p Patch
var attr1, attr2 Attribute
attr1.SetKey("key1")
attr1.SetValue("val1")
attr2.SetKey("key2")
attr2.SetValue("val2")
p.Address = oidtest.Address()
p.NewAttributes = []Attribute{attr1, attr2}
p.ReplaceAttributes = true
rng := &Range{}
rng.SetOffset(100)
rng.SetLength(10)
p.PayloadPatch = &PayloadPatch{
Range: rng,
Chunk: []byte("payload_patch_chunk"),
}
v2patch := p.ToV2()
addr := new(oid.Address)
require.NotNil(t, v2patch.GetAddress())
addr.ReadFromV2(*v2patch.GetAddress())
require.True(t, p.Address.Equals(*addr))
require.Equal(t, p.ReplaceAttributes, v2patch.GetReplaceAttributes())
require.Len(t, v2patch.GetNewAttributes(), 2)
require.Equal(t, attr1.Key(), v2patch.GetNewAttributes()[0].GetKey())
require.Equal(t, attr2.Key(), v2patch.GetNewAttributes()[1].GetKey())
require.Equal(t, attr1.Value(), v2patch.GetNewAttributes()[0].GetValue())
require.Equal(t, attr2.Value(), v2patch.GetNewAttributes()[1].GetValue())
require.NotNil(t, v2patch.GetPatch())
require.NotNil(t, v2patch.GetPatch().Range)
require.Equal(t, uint64(100), v2patch.GetPatch().Range.GetOffset())
require.Equal(t, uint64(10), v2patch.GetPatch().Range.GetLength())
require.Equal(t, []byte("payload_patch_chunk"), v2patch.GetPatch().Chunk)
})
})
t.Run("from v2", func(t *testing.T) {
t.Run("only attributes", func(t *testing.T) {
v2patch := new(v2object.PatchRequestBody)
address := oidtest.Address()
v2addr := new(refs.Address)
address.WriteToV2(v2addr)
v2patch.SetAddress(v2addr)
var attr1, attr2 Attribute
attr1.SetKey("key1")
attr1.SetValue("val1")
attr2.SetKey("key2")
attr2.SetValue("val2")
v2patch.SetNewAttributes([]v2object.Attribute{
*attr1.ToV2(), *attr2.ToV2(),
})
v2patch.SetReplaceAttributes(true)
var p Patch
p.FromV2(v2patch)
require.Equal(t, address, p.Address)
require.Equal(t, []Attribute{attr1, attr2}, p.NewAttributes)
require.Equal(t, true, p.ReplaceAttributes)
require.Nil(t, p.PayloadPatch)
})
t.Run("with payload patch", func(t *testing.T) {
v2patchReqBody := new(v2object.PatchRequestBody)
address := oidtest.Address()
v2addr := new(refs.Address)
address.WriteToV2(v2addr)
v2patchReqBody.SetAddress(v2addr)
var attr1, attr2 Attribute
attr1.SetKey("key1")
attr1.SetValue("val1")
attr2.SetKey("key2")
attr2.SetValue("val2")
v2patchReqBody.SetNewAttributes([]v2object.Attribute{
*attr1.ToV2(), *attr2.ToV2(),
})
v2patchReqBody.SetReplaceAttributes(true)
v2Rng := &v2object.Range{}
v2Rng.SetOffset(13)
v2Rng.SetLength(10)
v2Patch := &v2object.PatchRequestBodyPatch{
Range: v2Rng,
Chunk: []byte("payload_patch_chunk"),
}
v2patchReqBody.SetPatch(v2Patch)
var p Patch
p.FromV2(v2patchReqBody)
require.Equal(t, address, p.Address)
require.Equal(t, []Attribute{attr1, attr2}, p.NewAttributes)
require.Equal(t, true, p.ReplaceAttributes)
require.NotNil(t, p.PayloadPatch)
require.NotNil(t, p.PayloadPatch.Range)
require.Equal(t, uint64(13), p.PayloadPatch.Range.GetOffset())
require.Equal(t, uint64(10), p.PayloadPatch.Range.GetLength())
require.Equal(t, []byte("payload_patch_chunk"), p.PayloadPatch.Chunk)
})
})
}