Support HTTP/JSON to dubbo (#340)

pkg/ingress/kube/annotations/annotations.go

@@ -69,6 +69,8 @@ type Ingress struct {
 	Match *MatchConfig
 
 	HeaderControl *HeaderControlConfig
+
+	Http2Rpc *Http2RpcConfig
 }
 
 func (i *Ingress) NeedRegexMatch() bool {
@@ -149,6 +151,7 @@ func NewAnnotationHandlerManager() AnnotationHandler {
 			ignoreCaseMatching{},
 			match{},
 			headerControl{},
+			http2rpc{},
 		},
 		gatewayHandlers: []GatewayHandler{
 			downstreamTLS{},

pkg/ingress/kube/annotations/http2rpc.go

@@ -0,0 +1,53 @@
+// Copyright (c) 2023 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package annotations
+
+import (
+	. "github.com/alibaba/higress/pkg/ingress/log"
+)
+
+const (
+	http2rpcKey        = "http2rpc-name"
+	rpcDestinationName = "rpc-destination-name"
+)
+
+// help to conform http2rpc implements method of Parse
+var _ Parser = http2rpc{}
+
+type Http2RpcConfig struct {
+	Name string
+}
+
+type http2rpc struct{}
+
+func (a http2rpc) Parse(annotations Annotations, config *Ingress, _ *GlobalContext) error {
+	if !needHttp2RpcConfig(annotations) {
+		return nil
+	}
+	value, err := annotations.ParseStringForHigress(rpcDestinationName)
+	IngressLog.Infof("Parse http2rpc ingress name %s", value)
+	if err != nil {
+		IngressLog.Errorf("parse http2rpc error %v within ingress %s/%s", err, config.Namespace, config.Name)
+		return nil
+	}
+	config.Http2Rpc = &Http2RpcConfig{
+		Name: value,
+	}
+	return nil
+}
+
+func needHttp2RpcConfig(annotations Annotations) bool {
+	return annotations.HasHigress(rpcDestinationName)
+}

pkg/ingress/kube/annotations/http2rpc_test.go

@@ -0,0 +1,59 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package annotations
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestHttp2RpcParse(t *testing.T) {
+	parser := http2rpc{}
+
+	testCases := []struct {
+		input  Annotations
+		expect *Http2RpcConfig
+	}{
+		{
+			input:  Annotations{},
+			expect: nil,
+		},
+		{
+			input: Annotations{
+				buildHigressAnnotationKey(rpcDestinationName): "",
+			},
+			expect: nil,
+		},
+		{
+			input: Annotations{
+				buildHigressAnnotationKey(rpcDestinationName): "http-dubbo-alibaba-nacos-example-DemoService",
+			},
+			expect: &Http2RpcConfig{
+				Name: "http-dubbo-alibaba-nacos-example-DemoService",
+			},
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run("", func(t *testing.T) {
+			config := &Ingress{}
+			_ = parser.Parse(testCase.input, config, nil)
+			if diff := cmp.Diff(config.Http2Rpc, testCase.expect); diff != "" {
+				t.Fatalf("TestHttp2RpcParse() mismatch: (-want +got)\n%s", diff)
+			}
+		})
+	}
+}