refact replication adapter

Change-Id: Ic28854089b8dcfcbc7e42065df5c19c64d5b85e7
Signed-off-by: Ziming Zhang <zziming@vmware.com>

src/core/api/registry.go

@@ -407,7 +407,7 @@ func (t *RegistryAPI) GetInfo() {
 		t.SendInternalServerError(fmt.Errorf("failed to get the adapter factory for registry type %s: %v", registry.Type, err))
 		return
 	}
-	adp, err := factory(registry)
+	adp, err := factory.Create(registry)
 	if err != nil {
 		t.SendInternalServerError(fmt.Errorf("failed to create the adapter for registry %d: %v", registry.ID, err))
 		return

src/core/api/replication_adapter_test.go

@@ -23,12 +23,19 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func fakedFactory(*model.Registry) (adapter.Adapter, error) {
+type fakedFactory struct {
+}
+
+func (fakedFactory) Create(*model.Registry) (adapter.Adapter, error) {
 	return nil, nil
 }
 
+func (fakedFactory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 func TestReplicationAdapterAPIList(t *testing.T) {
-	err := adapter.RegisterFactory("test", fakedFactory, nil)
+	err := adapter.RegisterFactory("test", new(fakedFactory))
 	require.Nil(t, err)
 	cases := []*codeCheckingCase{
 		// 401

src/replication/adapter/adapter.go

@@ -31,10 +31,13 @@ const (
 )
 
 var registry = map[model.RegistryType]Factory{}
-var adapterInfoMap = map[model.RegistryType]*model.AdapterInfo{}
+var adapterInfoMap = map[model.RegistryType]*model.AdapterPattern{}
 
 // Factory creates a specific Adapter according to the params
-type Factory func(*model.Registry) (Adapter, error)
+type Factory interface {
+	Create(*model.Registry) (Adapter, error)
+	AdapterPattern() *model.AdapterPattern
+}
 
 // Adapter interface defines the capabilities of registry
 type Adapter interface {
@@ -123,7 +126,7 @@ func (v *VTag) GetLabels() []string {
 }
 
 // RegisterFactory registers one adapter factory to the registry
-func RegisterFactory(t model.RegistryType, factory Factory, adapterInfo *model.AdapterInfo) error {
+func RegisterFactory(t model.RegistryType, factory Factory) error {
 	if len(t) == 0 {
 		return errors.New("invalid registry type")
 	}
@@ -135,6 +138,7 @@ func RegisterFactory(t model.RegistryType, factory Factory, adapterInfo *model.A
 		return fmt.Errorf("adapter factory for %s already exists", t)
 	}
 	registry[t] = factory
+	adapterInfo := factory.AdapterPattern()
 	if adapterInfo != nil {
 		adapterInfoMap[t] = adapterInfo
 	}
@@ -166,6 +170,6 @@ func ListRegisteredAdapterTypes() []model.RegistryType {
 }
 
 // ListAdapterInfos list the adapter infos
-func ListAdapterInfos() map[model.RegistryType]*model.AdapterInfo {
+func ListAdapterInfos() map[model.RegistryType]*model.AdapterPattern {
 	return adapterInfoMap
 }

src/replication/adapter/adapter_test.go

@@ -22,24 +22,31 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func fakedFactory(*model.Registry) (Adapter, error) {
+type fakedFactory struct {
+}
+
+func (fakedFactory) Create(*model.Registry) (Adapter, error) {
 	return nil, nil
 }
 
+func (fakedFactory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 func TestRegisterFactory(t *testing.T) {
 	// empty type
-	assert.NotNil(t, RegisterFactory("", nil, nil))
+	assert.NotNil(t, RegisterFactory("", nil))
 	// empty factory
-	assert.NotNil(t, RegisterFactory("harbor", nil, nil))
+	assert.NotNil(t, RegisterFactory("harbor", nil))
 	// pass
-	assert.Nil(t, RegisterFactory("harbor", fakedFactory, nil))
+	assert.Nil(t, RegisterFactory("harbor", new(fakedFactory)))
 	// already exists
-	assert.NotNil(t, RegisterFactory("harbor", fakedFactory, nil))
+	assert.NotNil(t, RegisterFactory("harbor", new(fakedFactory)))
 }
 
 func TestGetFactory(t *testing.T) {
 	registry = map[model.RegistryType]Factory{}
-	require.Nil(t, RegisterFactory("harbor", fakedFactory, nil))
+	require.Nil(t, RegisterFactory("harbor", new(fakedFactory)))
 	// doesn't exist
 	_, err := GetFactory("gcr")
 	assert.NotNil(t, err)
@@ -55,7 +62,7 @@ func TestListRegisteredAdapterTypes(t *testing.T) {
 	assert.Equal(t, 0, len(types))
 
 	// register one factory
-	require.Nil(t, RegisterFactory("harbor", fakedFactory, nil))
+	require.Nil(t, RegisterFactory("harbor", new(fakedFactory)))
 
 	types = ListRegisteredAdapterTypes()
 	require.Equal(t, 1, len(types))

src/replication/adapter/aliacr/adapter.go

@@ -19,9 +19,7 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeAliAcr, func(registry *model.Registry) (adp.Adapter, error) {
+	if err := adp.RegisterFactory(model.RegistryTypeAliAcr, new(factory)); err != nil {
-		return newAdapter(registry)
-	}, getAdapterInfo()); err != nil {
 		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeAliAcr, err)
 		return
 	}
@@ -70,6 +68,19 @@ func newAdapter(registry *model.Registry) (*adapter, error) {
 	}, nil
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return getAdapterInfo()
+}
+
 // adapter for to aliyun docker registry
 type adapter struct {
 	*native.Adapter
@@ -105,29 +116,32 @@ func (a *adapter) Info() (info *model.RegistryInfo, err error) {
 	return
 }
 
-func getAdapterInfo() *model.AdapterInfo {
+func getAdapterInfo() *model.AdapterPattern {
-	info := &model.AdapterInfo{
+	info := &model.AdapterPattern{
-		SpecialEndpoints: []*model.Endpoint{
+		EndpointPattern: &model.EndpointPattern{
-			{Key: "cn-hangzhou", Value: "https://registry.cn-hangzhou.aliyuncs.com"},
+			EndpointType: model.EndpointPatternTypeList,
-			{Key: "cn-shanghai", Value: "https://registry.cn-shanghai.aliyuncs.com"},
+			Endpoints: []*model.Endpoint{
-			{Key: "cn-qingdao", Value: "https://registry.cn-qingdao.aliyuncs.com"},
+				{Key: "cn-hangzhou", Value: "https://registry.cn-hangzhou.aliyuncs.com"},
-			{Key: "cn-beijing", Value: "https://registry.cn-beijing.aliyuncs.com"},
+				{Key: "cn-shanghai", Value: "https://registry.cn-shanghai.aliyuncs.com"},
-			{Key: "cn-zhangjiakou", Value: "https://registry.cn-zhangjiakou.aliyuncs.com"},
+				{Key: "cn-qingdao", Value: "https://registry.cn-qingdao.aliyuncs.com"},
-			{Key: "cn-huhehaote", Value: "https://registry.cn-huhehaote.aliyuncs.com"},
+				{Key: "cn-beijing", Value: "https://registry.cn-beijing.aliyuncs.com"},
-			{Key: "cn-shenzhen", Value: "https://registry.cn-shenzhen.aliyuncs.com"},
+				{Key: "cn-zhangjiakou", Value: "https://registry.cn-zhangjiakou.aliyuncs.com"},
-			{Key: "cn-chengdu", Value: "https://registry.cn-chengdu.aliyuncs.com"},
+				{Key: "cn-huhehaote", Value: "https://registry.cn-huhehaote.aliyuncs.com"},
-			{Key: "cn-hongkong", Value: "https://registry.cn-hongkong.aliyuncs.com"},
+				{Key: "cn-shenzhen", Value: "https://registry.cn-shenzhen.aliyuncs.com"},
-			{Key: "ap-southeast-1", Value: "https://registry.ap-southeast-1.aliyuncs.com"},
+				{Key: "cn-chengdu", Value: "https://registry.cn-chengdu.aliyuncs.com"},
-			{Key: "ap-southeast-2", Value: "https://registry.ap-southeast-2.aliyuncs.com"},
+				{Key: "cn-hongkong", Value: "https://registry.cn-hongkong.aliyuncs.com"},
-			{Key: "ap-southeast-3", Value: "https://registry.ap-southeast-3.aliyuncs.com"},
+				{Key: "ap-southeast-1", Value: "https://registry.ap-southeast-1.aliyuncs.com"},
-			{Key: "ap-southeast-5", Value: "https://registry.ap-southeast-5.aliyuncs.com"},
+				{Key: "ap-southeast-2", Value: "https://registry.ap-southeast-2.aliyuncs.com"},
-			{Key: "ap-northeast-1", Value: "https://registry.ap-northeast-1.aliyuncs.com"},
+				{Key: "ap-southeast-3", Value: "https://registry.ap-southeast-3.aliyuncs.com"},
-			{Key: "ap-south-1", Value: "https://registry.ap-south-1.aliyuncs.com"},
+				{Key: "ap-southeast-5", Value: "https://registry.ap-southeast-5.aliyuncs.com"},
-			{Key: "eu-central-1", Value: "https://registry.eu-central-1.aliyuncs.com"},
+				{Key: "ap-northeast-1", Value: "https://registry.ap-northeast-1.aliyuncs.com"},
-			{Key: "eu-west-1", Value: "https://registry.eu-west-1.aliyuncs.com"},
+				{Key: "ap-south-1", Value: "https://registry.ap-south-1.aliyuncs.com"},
-			{Key: "us-west-1", Value: "https://registry.us-west-1.aliyuncs.com"},
+				{Key: "eu-central-1", Value: "https://registry.eu-central-1.aliyuncs.com"},
-			{Key: "us-east-1", Value: "https://registry.us-east-1.aliyuncs.com"},
+				{Key: "eu-west-1", Value: "https://registry.eu-west-1.aliyuncs.com"},
-			{Key: "me-east-1", Value: "https://registry.me-east-1.aliyuncs.com"},
+				{Key: "us-west-1", Value: "https://registry.us-west-1.aliyuncs.com"},
+				{Key: "us-east-1", Value: "https://registry.us-east-1.aliyuncs.com"},
+				{Key: "me-east-1", Value: "https://registry.me-east-1.aliyuncs.com"},
+			},
 		},
 	}
 	return info

src/replication/adapter/aliacr/adapter_test.go

@@ -26,7 +26,7 @@ func TestAdapter_NewAdapter(t *testing.T) {
 	assert.NotNil(t, factory)
 
 	// test case for URL is registry.
-	adapter, err := factory(&model.Registry{
+	adapter, err := newAdapter(&model.Registry{
 		Type: model.RegistryTypeAliAcr,
 		Credential: &model.Credential{
 			AccessKey:    "MockAccessKey",
@@ -38,7 +38,7 @@ func TestAdapter_NewAdapter(t *testing.T) {
 	assert.NotNil(t, adapter)
 
 	// test case for URL is cr service.
-	adapter, err = factory(&model.Registry{
+	adapter, err = newAdapter(&model.Registry{
 		Type: model.RegistryTypeAliAcr,
 		Credential: &model.Credential{
 			AccessKey:    "MockAccessKey",

src/replication/adapter/awsecr/adapter.go

@@ -40,9 +40,7 @@ var (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeAwsEcr, func(registry *model.Registry) (adp.Adapter, error) {
+	if err := adp.RegisterFactory(model.RegistryTypeAwsEcr, new(factory)); err != nil {
-		return newAdapter(registry)
-	}, getAdapterInfo()); err != nil {
 		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeAwsEcr, err)
 		return
 	}
@@ -74,6 +72,19 @@ func parseRegion(url string) (string, error) {
 	return rs[1], nil
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return getAdapterInfo()
+}
+
 type adapter struct {
 	*native.Adapter
 	registry      *model.Registry
@@ -104,76 +115,79 @@ func (*adapter) Info() (info *model.RegistryInfo, err error) {
 	}, nil
 }
 
-func getAdapterInfo() *model.AdapterInfo {
+func getAdapterInfo() *model.AdapterPattern {
-	info := &model.AdapterInfo{
+	info := &model.AdapterPattern{
-		SpecialEndpoints: []*model.Endpoint{
+		EndpointPattern: &model.EndpointPattern{
-			{
+			EndpointType: model.EndpointPatternTypeList,
-				Key:   "ap-northeast-1",
+			Endpoints: []*model.Endpoint{
-				Value: "https://api.ecr.ap-northeast-1.amazonaws.com",
+				{
-			},
+					Key:   "ap-northeast-1",
-			{
+					Value: "https://api.ecr.ap-northeast-1.amazonaws.com",
-				Key:   "us-east-1",
+				},
-				Value: "https://api.ecr.us-east-1.amazonaws.com",
+				{
-			},
+					Key:   "us-east-1",
-			{
+					Value: "https://api.ecr.us-east-1.amazonaws.com",
-				Key:   "us-east-2",
+				},
-				Value: "https://api.ecr.us-east-2.amazonaws.com",
+				{
-			},
+					Key:   "us-east-2",
-			{
+					Value: "https://api.ecr.us-east-2.amazonaws.com",
-				Key:   "us-west-1",
+				},
-				Value: "https://api.ecr.us-west-1.amazonaws.com",
+				{
-			},
+					Key:   "us-west-1",
-			{
+					Value: "https://api.ecr.us-west-1.amazonaws.com",
-				Key:   "us-west-2",
+				},
-				Value: "https://api.ecr.us-west-2.amazonaws.com",
+				{
-			},
+					Key:   "us-west-2",
-			{
+					Value: "https://api.ecr.us-west-2.amazonaws.com",
-				Key:   "ap-east-1",
+				},
-				Value: "https://api.ecr.ap-east-1.amazonaws.com",
+				{
-			},
+					Key:   "ap-east-1",
-			{
+					Value: "https://api.ecr.ap-east-1.amazonaws.com",
-				Key:   "ap-south-1",
+				},
-				Value: "https://api.ecr.ap-south-1.amazonaws.com",
+				{
-			},
+					Key:   "ap-south-1",
-			{
+					Value: "https://api.ecr.ap-south-1.amazonaws.com",
-				Key:   "ap-northeast-2",
+				},
-				Value: "https://api.ecr.ap-northeast-2.amazonaws.com",
+				{
-			},
+					Key:   "ap-northeast-2",
-			{
+					Value: "https://api.ecr.ap-northeast-2.amazonaws.com",
-				Key:   "ap-southeast-1",
+				},
-				Value: "https://api.ecr.ap-southeast-1.amazonaws.com",
+				{
-			},
+					Key:   "ap-southeast-1",
-			{
+					Value: "https://api.ecr.ap-southeast-1.amazonaws.com",
-				Key:   "ap-southeast-2",
+				},
-				Value: "https://api.ecr.ap-southeast-2.amazonaws.com",
+				{
-			},
+					Key:   "ap-southeast-2",
-			{
+					Value: "https://api.ecr.ap-southeast-2.amazonaws.com",
-				Key:   "ca-central-1",
+				},
-				Value: "https://api.ecr.ca-central-1.amazonaws.com",
+				{
-			},
+					Key:   "ca-central-1",
-			{
+					Value: "https://api.ecr.ca-central-1.amazonaws.com",
-				Key:   "eu-central-1",
+				},
-				Value: "https://api.ecr.eu-central-1.amazonaws.com",
+				{
-			},
+					Key:   "eu-central-1",
-			{
+					Value: "https://api.ecr.eu-central-1.amazonaws.com",
-				Key:   "eu-west-1",
+				},
-				Value: "https://api.ecr.eu-west-1.amazonaws.com",
+				{
-			},
+					Key:   "eu-west-1",
-			{
+					Value: "https://api.ecr.eu-west-1.amazonaws.com",
-				Key:   "eu-west-2",
+				},
-				Value: "https://api.ecr.eu-west-2.amazonaws.com",
+				{
-			},
+					Key:   "eu-west-2",
-			{
+					Value: "https://api.ecr.eu-west-2.amazonaws.com",
-				Key:   "eu-west-3",
+				},
-				Value: "https://api.ecr.eu-west-3.amazonaws.com",
+				{
-			},
+					Key:   "eu-west-3",
-			{
+					Value: "https://api.ecr.eu-west-3.amazonaws.com",
-				Key:   "eu-north-1",
+				},
-				Value: "https://api.ecr.eu-north-1.amazonaws.com",
+				{
-			},
+					Key:   "eu-north-1",
-			{
+					Value: "https://api.ecr.eu-north-1.amazonaws.com",
-				Key:   "sa-east-1",
+				},
-				Value: "https://api.ecr.sa-east-1.amazonaws.com",
+				{
+					Key:   "sa-east-1",
+					Value: "https://api.ecr.sa-east-1.amazonaws.com",
+				},
 			},
 		},
 	}

src/replication/adapter/awsecr/adapter_test.go

@@ -27,7 +27,7 @@ func TestAdapter_NewAdapter(t *testing.T) {
 	assert.Nil(t, err)
 	assert.NotNil(t, factory)
 
-	adapter, err := factory(&model.Registry{
+	adapter, err := newAdapter(&model.Registry{
 		Type: model.RegistryTypeAwsEcr,
 		Credential: &model.Credential{
 			AccessKey:    "xxx",
@@ -38,7 +38,7 @@ func TestAdapter_NewAdapter(t *testing.T) {
 	assert.Nil(t, err)
 	assert.NotNil(t, adapter)
 
-	adapter, err = factory(&model.Registry{
+	adapter, err = newAdapter(&model.Registry{
 		Type: model.RegistryTypeAwsEcr,
 		Credential: &model.Credential{
 			AccessKey:    "xxx",
@@ -49,7 +49,7 @@ func TestAdapter_NewAdapter(t *testing.T) {
 	assert.Nil(t, err)
 	assert.NotNil(t, adapter)
 
-	adapter, err = factory(&model.Registry{
+	adapter, err = newAdapter(&model.Registry{
 		Type: model.RegistryTypeAwsEcr,
 		Credential: &model.Credential{
 			AccessKey:    "xxx",

src/replication/adapter/azurecr/adapter.go

@@ -8,14 +8,14 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeAzureAcr, factory, nil); err != nil {
+	if err := adp.RegisterFactory(model.RegistryTypeAzureAcr, new(factory)); err != nil {
 		log.Errorf("Register adapter factory for %s error: %v", model.RegistryTypeAzureAcr, err)
 		return
 	}
 	log.Infof("Factory for adapter %s registered", model.RegistryTypeAzureAcr)
 }
 
-func factory(registry *model.Registry) (adp.Adapter, error) {
+func newAdapter(registry *model.Registry) (adp.Adapter, error) {
 	dockerRegistryAdapter, err := native.NewAdapter(registry)
 	if err != nil {
 		return nil, err
@@ -25,6 +25,19 @@ func factory(registry *model.Registry) (adp.Adapter, error) {
 	}, nil
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 type adapter struct {
 	*native.Adapter
 }

src/replication/adapter/dockerhub/adapter.go

@@ -18,14 +18,14 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeDockerHub, factory, getAdapterInfo()); err != nil {
+	if err := adp.RegisterFactory(model.RegistryTypeDockerHub, new(factory)); err != nil {
 		log.Errorf("Register adapter factory for %s error: %v", model.RegistryTypeDockerHub, err)
 		return
 	}
 	log.Infof("Factory for adapter %s registered", model.RegistryTypeDockerHub)
 }
 
-func factory(registry *model.Registry) (adp.Adapter, error) {
+func newAdapter(registry *model.Registry) (adp.Adapter, error) {
 	client, err := NewClient(registry)
 	if err != nil {
 		return nil, err
@@ -47,6 +47,19 @@ func factory(registry *model.Registry) (adp.Adapter, error) {
 	}, nil
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return getAdapterInfo()
+}
+
 type adapter struct {
 	*native.Adapter
 	registry *model.Registry
@@ -80,12 +93,15 @@ func (a *adapter) Info() (*model.RegistryInfo, error) {
 	}, nil
 }
 
-func getAdapterInfo() *model.AdapterInfo {
+func getAdapterInfo() *model.AdapterPattern {
-	info := &model.AdapterInfo{
+	info := &model.AdapterPattern{
-		SpecialEndpoints: []*model.Endpoint{
+		EndpointPattern: &model.EndpointPattern{
-			{
+			EndpointType: model.EndpointPatternTypeFix,
-				Key:   "hub.docker.com",
+			Endpoints: []*model.Endpoint{
-				Value: "https://hub.docker.com",
+				{
+					Key:   "hub.docker.com",
+					Value: "https://hub.docker.com",
+				},
 			},
 		},
 	}

src/replication/adapter/dockerhub/adapter_test.go

@@ -21,7 +21,7 @@ func getAdapter(t *testing.T) adp.Adapter {
 	assert.Nil(err)
 	assert.NotNil(factory)
 
-	adapter, err := factory(&model.Registry{
+	adapter, err := newAdapter(&model.Registry{
 		Type: model.RegistryTypeDockerHub,
 		URL:  baseURL,
 		Credential: &model.Credential{

src/replication/adapter/gitlab/adapter.go

@@ -12,15 +12,26 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeGitLab, func(registry *model.Registry) (adp.Adapter, error) {
+	if err := adp.RegisterFactory(model.RegistryTypeGitLab, new(factory)); err != nil {
-		return newAdapter(registry)
-	}, nil); err != nil {
 		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeGitLab, err)
 		return
 	}
 	log.Infof("the factory for adapter %s registered", model.RegistryTypeGitLab)
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 type adapter struct {
 	*native.Adapter
 	registry        *model.Registry
@@ -31,7 +42,6 @@ type adapter struct {
 }
 
 func newAdapter(registry *model.Registry) (*adapter, error) {
-
 	var credential auth.Credential
 	if registry.Credential != nil && len(registry.Credential.AccessSecret) != 0 {
 		credential = auth.NewBasicAuthCredential(

src/replication/adapter/googlegcr/adapter.go

@@ -22,9 +22,7 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeGoogleGcr, func(registry *model.Registry) (adp.Adapter, error) {
+	if err := adp.RegisterFactory(model.RegistryTypeGoogleGcr, new(factory)); err != nil {
-		return newAdapter(registry)
-	}, getAdapterInfo()); err != nil {
 		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeGoogleGcr, err)
 		return
 	}
@@ -43,6 +41,19 @@ func newAdapter(registry *model.Registry) (*adapter, error) {
 	}, nil
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return getAdapterInfo()
+}
+
 type adapter struct {
 	*native.Adapter
 	registry *model.Registry
@@ -73,28 +84,30 @@ func (adapter) Info() (info *model.RegistryInfo, err error) {
 	}, nil
 }
 
-func getAdapterInfo() *model.AdapterInfo {
+func getAdapterInfo() *model.AdapterPattern {
-	info := &model.AdapterInfo{
+	info := &model.AdapterPattern{
-		SpecialEndpoints: []*model.Endpoint{
+		EndpointPattern: &model.EndpointPattern{
-			{
+			EndpointType: model.EndpointPatternTypeList,
-				Key:   "gcr.io",
+			Endpoints: []*model.Endpoint{
-				Value: "https://gcr.io",
+				{
-			},
+					Key:   "gcr.io",
-			{
+					Value: "https://gcr.io",
-				Key:   "us.gcr.io",
+				},
-				Value: "https://us.gcr.io",
+				{
-			},
+					Key:   "us.gcr.io",
-			{
+					Value: "https://us.gcr.io",
-				Key:   "eu.gcr.io",
+				},
-				Value: "https://eu.gcr.io",
+				{
-			},
+					Key:   "eu.gcr.io",
-			{
+					Value: "https://eu.gcr.io",
-				Key:   "asia.gcr.io",
+				},
-				Value: "https://asia.gcr.io",
+				{
+					Key:   "asia.gcr.io",
+					Value: "https://asia.gcr.io",
+				},
 			},
 		},
-		SpecialCredential: &model.CredentialInfo{
+		CredentialPattern: &model.CredentialPattern{
-
 			AccessKeyType:    model.AccessKeyTypeFix,
 			AccessKeyData:    "_json_key",
 			AccessSecretType: model.AccessSecretTypeFile,

src/replication/adapter/googlegcr/adapter_test.go

@@ -88,10 +88,10 @@ func getMockAdapter(t *testing.T, hasCred, health bool) (*adapter, *httptest.Ser
 	factory, err := adp.GetFactory(model.RegistryTypeGoogleGcr)
 	assert.Nil(t, err)
 	assert.NotNil(t, factory)
-	a, err := factory(registry)
+	a, err := newAdapter(registry)
 
 	assert.Nil(t, err)
-	return a.(*adapter), server
+	return a, server
 }
 
 func TestAdapter_Info(t *testing.T) {

src/replication/adapter/harbor/adapter.go

@@ -33,15 +33,26 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeHarbor, func(registry *model.Registry) (adp.Adapter, error) {
+	if err := adp.RegisterFactory(model.RegistryTypeHarbor, new(factory)); err != nil {
-		return newAdapter(registry)
-	}, nil); err != nil {
 		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeHarbor, err)
 		return
 	}
 	log.Infof("the factory for adapter %s registered", model.RegistryTypeHarbor)
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 type adapter struct {
 	*native.Adapter
 	registry *model.Registry

src/replication/adapter/helmhub/adapter.go

@@ -22,15 +22,26 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeHelmHub, func(registry *model.Registry) (adp.Adapter, error) {
+	if err := adp.RegisterFactory(model.RegistryTypeHelmHub, new(factory)); err != nil {
-		return newAdapter(registry)
-	}, nil); err != nil {
 		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeHelmHub, err)
 		return
 	}
 	log.Infof("the factory for adapter %s registered", model.RegistryTypeHelmHub)
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 type adapter struct {
 	registry *model.Registry
 	client   *Client

src/replication/adapter/huawei/huawei_adapter.go

@@ -19,7 +19,7 @@ import (
 )
 
 func init() {
-	err := adp.RegisterFactory(model.RegistryTypeHuawei, AdapterFactory, nil)
+	err := adp.RegisterFactory(model.RegistryTypeHuawei, new(factory))
 	if err != nil {
 		log.Errorf("failed to register factory for Huawei: %v", err)
 		return
@@ -27,6 +27,19 @@ func init() {
 	log.Infof("the factory of Huawei adapter was registered")
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 // Adapter is for images replications between harbor and Huawei image repository(SWR)
 type adapter struct {
 	*native.Adapter
@@ -210,8 +223,7 @@ func (a *adapter) HealthCheck() (model.HealthStatus, error) {
 	return model.Healthy, nil
 }
 
-// AdapterFactory is the factory for huawei adapter
+func newAdapter(registry *model.Registry) (adp.Adapter, error) {
-func AdapterFactory(registry *model.Registry) (adp.Adapter, error) {
 	dockerRegistryAdapter, err := native.NewAdapter(registry)
 	if err != nil {
 		return nil, err

src/replication/adapter/huawei/huawei_adapter_test.go

@@ -24,7 +24,7 @@ func init() {
 		Status:      "",
 	}
 
-	hwAdapter, err = AdapterFactory(hwRegistry)
+	hwAdapter, err = newAdapter(hwRegistry)
 	if err != nil {
 		os.Exit(1)
 	}

src/replication/adapter/huawei/image_registry_test.go

@@ -21,7 +21,7 @@ func init() {
 		Insecure:    false,
 		Status:      "",
 	}
-	adp, err := AdapterFactory(hwRegistry)
+	adp, err := newAdapter(hwRegistry)
 	if err != nil {
 		os.Exit(1)
 	}

src/replication/adapter/jfrog/adapter.go

@@ -22,7 +22,7 @@ import (
 )
 
 func init() {
-	err := adp.RegisterFactory(model.RegistryTypeJfrogArtifactory, AdapterFactory, nil)
+	err := adp.RegisterFactory(model.RegistryTypeJfrogArtifactory, new(factory))
 	if err != nil {
 		log.Errorf("failed to register factory for jfrog artifactory: %v", err)
 		return
@@ -30,6 +30,19 @@ func init() {
 	log.Infof("the factory of jfrog artifactory adapter was registered")
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 // Adapter is for images replications between harbor and jfrog artifactory image repository
 type adapter struct {
 	*native.Adapter
@@ -64,8 +77,7 @@ func (a *adapter) Info() (info *model.RegistryInfo, err error) {
 	return
 }
 
-// AdapterFactory is the factory for jfrog artifactory adapter
+func newAdapter(registry *model.Registry) (adp.Adapter, error) {
-func AdapterFactory(registry *model.Registry) (adp.Adapter, error) {
 	dockerRegistryAdapter, err := native.NewAdapter(registry)
 	if err != nil {
 		return nil, err

src/replication/adapter/jfrog/adapter_test.go

@@ -91,7 +91,7 @@ func getMockAdapter(t *testing.T, hasCred, health bool) (*adapter, *httptest.Ser
 	factory, err := adp.GetFactory(model.RegistryTypeJfrogArtifactory)
 	assert.Nil(t, err)
 	assert.NotNil(t, factory)
-	a, err := factory(registry)
+	a, err := newAdapter(registry)
 
 	assert.Nil(t, err)
 	return a.(*adapter), server

src/replication/adapter/native/adapter.go

@@ -35,9 +35,7 @@ import (
 )
 
 func init() {
-	if err := adp.RegisterFactory(model.RegistryTypeDockerRegistry, func(registry *model.Registry) (adp.Adapter, error) {
+	if err := adp.RegisterFactory(model.RegistryTypeDockerRegistry, new(factory)); err != nil {
-		return NewAdapter(registry)
-	}, nil); err != nil {
 		log.Errorf("failed to register factory for %s: %v", model.RegistryTypeDockerRegistry, err)
 		return
 	}
@@ -46,6 +44,19 @@ func init() {
 
 var _ adp.Adapter = &Adapter{}
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return NewAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 // Adapter implements an adapter for Docker registry. It can be used to all registries
 // that implement the registry V2 API
 type Adapter struct {

src/replication/adapter/quayio/adapter.go

@@ -26,9 +26,7 @@ type adapter struct {
 }
 
 func init() {
-	err := adp.RegisterFactory(model.RegistryTypeQuayio, func(registry *model.Registry) (adp.Adapter, error) {
+	err := adp.RegisterFactory(model.RegistryTypeQuayio, new(factory))
-		return newAdapter(registry)
-	}, nil)
 	if err != nil {
 		log.Errorf("failed to register factory for Quay.io: %v", err)
 		return
@@ -68,6 +66,19 @@ func newAdapter(registry *model.Registry) (*adapter, error) {
 	}, nil
 }
 
+type factory struct {
+}
+
+// Create ...
+func (f *factory) Create(r *model.Registry) (adp.Adapter, error) {
+	return newAdapter(r)
+}
+
+// AdapterPattern ...
+func (f *factory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 // Info returns information of the registry
 func (a *adapter) Info() (*model.RegistryInfo, error) {
 	return &model.RegistryInfo{

src/replication/adapter/quayio/adapter_test.go

@@ -10,7 +10,7 @@ import (
 
 func getMockAdapter(t *testing.T) adp.Adapter {
 	factory, _ := adp.GetFactory(model.RegistryTypeQuayio)
-	adapter, err := factory(&model.Registry{
+	adapter, err := factory.Create(&model.Registry{
 		Type: model.RegistryTypeQuayio,
 		URL:  "https://quay.io",
 	})

src/replication/model/registry.go

@@ -116,14 +116,32 @@ type FilterStyle struct {
 	Values []string   `json:"values,omitempty"`
 }
 
+// EndpointPattern ...
+type EndpointPattern struct {
+	EndpointType EndpointType `json:"endpoint_type"`
+	Endpoints    []*Endpoint  `json:"endpoints"`
+}
+
+// EndpointType ..
+type EndpointType string
+
+const (
+	// EndpointPatternTypeStandard ...
+	EndpointPatternTypeStandard EndpointType = "EndpointPatternTypeStandard"
+	// EndpointPatternTypeFix ...
+	EndpointPatternTypeFix EndpointType = "EndpointPatternTypeFix"
+	// EndpointPatternTypeList ...
+	EndpointPatternTypeList EndpointType = "EndpointPatternTypeList"
+)
+
 // Endpoint ...
 type Endpoint struct {
 	Key   string `json:"key"`
 	Value string `json:"value"`
 }
 
-// CredentialInfo ...
+// CredentialPattern ...
-type CredentialInfo struct {
+type CredentialPattern struct {
 	AccessKeyType    AccessKeyType    `json:"access_key_type"`
 	AccessKeyData    string           `json:"access_key_data"`
 	AccessSecretType AccessSecretType `json:"access_secret_type"`
@@ -152,17 +170,38 @@ const (
 
 // RegistryInfo provides base info and capability declarations of the registry
 type RegistryInfo struct {
-	Type                     RegistryType    `json:"type"`
+	Type                     RegistryType   `json:"type"`
-	Description              string          `json:"description"`
+	Description              string         `json:"description"`
-	SupportedResourceTypes   []ResourceType  `json:"-"`
+	SupportedResourceTypes   []ResourceType `json:"-"`
-	SupportedResourceFilters []*FilterStyle  `json:"supported_resource_filters"`
+	SupportedResourceFilters []*FilterStyle `json:"supported_resource_filters"`
-	SupportedTriggers        []TriggerType   `json:"supported_triggers"`
+	SupportedTriggers        []TriggerType  `json:"supported_triggers"`
-	SpecialEndpoints         []*Endpoint     `json:"special_endpoints"`
-	SpecialCredential        *CredentialInfo `json:"special_credential"`
 }
 
-// AdapterInfo provides base info and capability declarations of the registry
+// AdapterPattern provides base info and capability declarations of the registry
-type AdapterInfo struct {
+type AdapterPattern struct {
-	SpecialEndpoints  []*Endpoint     `json:"special_endpoints"`
+	EndpointPattern   *EndpointPattern   `json:"endpoint_pattern"`
-	SpecialCredential *CredentialInfo `json:"special_credential"`
+	CredentialPattern *CredentialPattern `json:"credential_pattern"`
+}
+
+// NewDefaultAdapterPattern ...
+func NewDefaultAdapterPattern() *AdapterPattern {
+	return &AdapterPattern{
+		EndpointPattern:   NewDefaultEndpointPattern(),
+		CredentialPattern: NewDefaultCredentialPattern(),
+	}
+}
+
+// NewDefaultEndpointPattern ...
+func NewDefaultEndpointPattern() *EndpointPattern {
+	return &EndpointPattern{
+		EndpointType: EndpointPatternTypeStandard,
+	}
+}
+
+// NewDefaultCredentialPattern ...
+func NewDefaultCredentialPattern() *CredentialPattern {
+	return &CredentialPattern{
+		AccessKeyType:    AccessKeyTypeStandard,
+		AccessSecretType: AccessSecretTypeStandard,
+	}
 }

src/replication/operation/controller_test.go

@@ -113,10 +113,17 @@ func (f *fakedScheduler) Stop(id string) error {
 	return nil
 }
 
-func fakedAdapterFactory(*model.Registry) (adapter.Adapter, error) {
+type fakedFactory struct {
+}
+
+func (fakedFactory) Create(*model.Registry) (adapter.Adapter, error) {
 	return &fakedAdapter{}, nil
 }
 
+func (fakedFactory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 type fakedAdapter struct{}
 
 func (f *fakedAdapter) Info() (*model.RegistryInfo, error) {
@@ -212,7 +219,7 @@ func TestMain(m *testing.M) {
 }
 
 func TestStartReplication(t *testing.T) {
-	err := adapter.RegisterFactory(model.RegistryTypeHarbor, fakedAdapterFactory, nil)
+	err := adapter.RegisterFactory(model.RegistryTypeHarbor, new(fakedFactory))
 	require.Nil(t, err)
 	config.Config = &config.Configuration{}
 

src/replication/operation/flow/stage.go

@@ -38,7 +38,7 @@ func initialize(policy *model.Policy) (adp.Adapter, adp.Adapter, error) {
 	if err != nil {
 		return nil, nil, fmt.Errorf("failed to get adapter factory for registry type %s: %v", policy.SrcRegistry.Type, err)
 	}
-	srcAdapter, err = srcFactory(policy.SrcRegistry)
+	srcAdapter, err = srcFactory.Create(policy.SrcRegistry)
 	if err != nil {
 		return nil, nil, fmt.Errorf("failed to create adapter for source registry %s: %v", policy.SrcRegistry.URL, err)
 	}
@@ -48,7 +48,7 @@ func initialize(policy *model.Policy) (adp.Adapter, adp.Adapter, error) {
 	if err != nil {
 		return nil, nil, fmt.Errorf("failed to get adapter factory for registry type %s: %v", policy.DestRegistry.Type, err)
 	}
-	dstAdapter, err = dstFactory(policy.DestRegistry)
+	dstAdapter, err = dstFactory.Create(policy.DestRegistry)
 	if err != nil {
 		return nil, nil, fmt.Errorf("failed to create adapter for destination registry %s: %v", policy.DestRegistry.URL, err)
 	}

src/replication/operation/flow/stage_test.go

@@ -29,10 +29,17 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func fakedAdapterFactory(*model.Registry) (adapter.Adapter, error) {
+type fakedFactory struct {
+}
+
+func (fakedFactory) Create(*model.Registry) (adapter.Adapter, error) {
 	return &fakedAdapter{}, nil
 }
 
+func (fakedFactory) AdapterPattern() *model.AdapterPattern {
+	return nil
+}
+
 type fakedAdapter struct{}
 
 func (f *fakedAdapter) Info() (*model.RegistryInfo, error) {
@@ -194,7 +201,7 @@ func TestMain(m *testing.M) {
 	config.Config = &config.Configuration{
 		CoreURL: url,
 	}
-	if err := adapter.RegisterFactory(model.RegistryTypeHarbor, fakedAdapterFactory, nil); err != nil {
+	if err := adapter.RegisterFactory(model.RegistryTypeHarbor, new(fakedFactory)); err != nil {
 		os.Exit(1)
 	}
 	os.Exit(m.Run())

src/replication/registry/manager.go

@@ -195,7 +195,7 @@ func CheckHealthStatus(r *model.Registry) (model.HealthStatus, error) {
 		return model.Unknown, fmt.Errorf("get adaper for type '%s' error: %v", r.Type, err)
 	}
 
-	rAdapter, err := factory(r)
+	rAdapter, err := factory.Create(r)
 	if err != nil {
 		return model.Unknown, fmt.Errorf("generate '%s' type adapter form factory error: %v", r.Type, err)
 	}

src/replication/transfer/chart/transfer.go

@@ -106,7 +106,7 @@ func createRegistry(reg *model.Registry) (adapter.ChartRegistry, error) {
 	if err != nil {
 		return nil, err
 	}
-	ad, err := factory(reg)
+	ad, err := factory.Create(reg)
 	if err != nil {
 		return nil, err
 	}

src/replication/transfer/image/transfer.go

@@ -113,7 +113,7 @@ func createRegistry(reg *model.Registry) (adapter.ImageRegistry, error) {
 	if err != nil {
 		return nil, err
 	}
-	ad, err := factory(reg)
+	ad, err := factory.Create(reg)
 	if err != nil {
 		return nil, err
 	}