[FAB-9654] Capabilities for key-level validation

This change set introduces a new capability for key level validation (as
described in FAB-8812).

Change-Id: I1a517e61b0df7d3e3017866a457b2ee657109b18
Signed-off-by: Alessandro Sorniotti <ale.linux@sopit.net>
Signed-off-by: Matthias Neugschwandtner <eug@zurich.ibm.com>

Author: ale-linux

common/capabilities/application.go

@@ -93,3 +93,9 @@ func (ap *ApplicationProvider) V1_2Validation() bool {
 func (ap *ApplicationProvider) MetadataLifecycle() bool {
 	return ap.v12LifecycleExperimental
 }
+
+// KeyLevelEndorsement returns true if this channel supports endorsement
+// policies expressible at a ledger key granularity, as described in FAB-8812
+func (ap *ApplicationProvider) KeyLevelEndorsement() bool {
+	return ap.v12
+}

common/capabilities/application_test.go

@@ -36,6 +36,7 @@ func TestApplicationV12(t *testing.T) {
 	assert.True(t, op.ForbidDuplicateTXIdInBlock())
 	assert.True(t, op.V1_1Validation())
 	assert.True(t, op.V1_2Validation())
+	assert.True(t, op.KeyLevelEndorsement())
 }
 
 func TestApplicationPvtDataExperimental(t *testing.T) {

common/channelconfig/api.go

@@ -141,6 +141,10 @@ type ApplicationCapabilities interface {
 	// v1.0/v1.1 lifecycle, or whether it should use the newer per channel peer local chaincode
 	// metadata package approach planned for release with Fabric v1.2
 	MetadataLifecycle() bool
+
+	// KeyLevelEndorsement returns true if this channel supports endorsement
+	// policies expressible at a ledger key granularity, as described in FAB-8812
+	KeyLevelEndorsement() bool
 }
 
 // OrdererCapabilities defines the capabilities for the orderer portion of a channel

common/mocks/config/application.go

@@ -43,6 +43,7 @@ type MockApplicationCapabilities struct {
 	V1_1ValidationRv             bool
 	V1_2ValidationRv             bool
 	MetadataLifecycleRv          bool
+	KeyLevelEndorsementRv        bool
 }
 
 func (mac *MockApplicationCapabilities) Supported() error {
@@ -72,3 +73,7 @@ func (mac *MockApplicationCapabilities) V1_2Validation() bool {
 func (mac *MockApplicationCapabilities) MetadataLifecycle() bool {
 	return mac.MetadataLifecycleRv
 }
+
+func (mac *MockApplicationCapabilities) KeyLevelEndorsement() bool {
+	return mac.KeyLevelEndorsementRv
+}