chore(codegen): generate H2 handler according to model

Author: AllanZhengYP

codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddHttp2Dependency.java

@@ -16,9 +16,10 @@
 package software.amazon.smithy.aws.typescript.codegen;
 
 import java.util.Collections;
+import java.util.List;
 import java.util.Map;
 import java.util.function.Consumer;
-import software.amazon.smithy.aws.traits.ServiceTrait;
+import software.amazon.smithy.aws.traits.protocols.AwsProtocolTrait;
 import software.amazon.smithy.codegen.core.SymbolProvider;
 import software.amazon.smithy.model.Model;
 import software.amazon.smithy.model.shapes.ServiceShape;
@@ -38,28 +39,27 @@ public Map<String, Consumer<TypeScriptWriter>> getRuntimeConfigWriters(
             TypeScriptSettings settings,
             Model model,
             SymbolProvider symbolProvider,
-            LanguageTarget target
-    ) {
-        if (!isHttp2Applicable(settings.getService(model))) {
+            LanguageTarget target) {
+        if (isHttp2Applicable(settings.getService(model))) {
+            switch (target) {
+                case NODE:
+                    return MapUtils.of("requestHandler", writer -> {
+                        writer.addDependency(TypeScriptDependency.AWS_SDK_NODE_HTTP_HANDLER);
+                        writer.addImport("NodeHttp2Handler", "NodeHttp2Handler",
+                                TypeScriptDependency.AWS_SDK_NODE_HTTP_HANDLER.packageName);
+                        writer.write("new NodeHttp2Handler()");
+                    });
+                default:
+                    return Collections.emptyMap();
+            }
+        } else {
             return Collections.emptyMap();
         }
-        switch (target) {
-            case NODE:
-                return MapUtils.of("requestHandler", writer -> {
-                    writer.addDependency(TypeScriptDependency.AWS_SDK_NODE_HTTP_HANDLER);
-                    writer.addImport("NodeHttp2Handler", "NodeHttp2Handler",
-                            TypeScriptDependency.AWS_SDK_NODE_HTTP_HANDLER.packageName);
-                    writer.write("new NodeHttp2Handler()");
-                });
-            default:
-                return Collections.emptyMap();
-        }
     }
 
     private static boolean isHttp2Applicable(ServiceShape service) {
-        String serviceId = service.getTrait(ServiceTrait.class).map(ServiceTrait::getSdkId).orElse("");
-        // TODO: Add "Kinesis" service to http2 applicable, but blocked by potential breaking change.
-        // Reference: https://github.com/aws/aws-sdk-js-v3/issues/1206
-        return ListUtils.of("Lex Runtime V2", "Transcribe Streaming").contains(serviceId);
+        List<String> eventStreamFlag = service.getTrait(AwsProtocolTrait.class)
+                .map(AwsProtocolTrait::getEventStreamHttp).orElse(ListUtils.of());
+        return eventStreamFlag.contains("h2");
     }
 }