Create java_api_contribution_import from sdk_library_import

This change modifies sdk_library_import so that it directly creates
java_api_contribution per api scope. The module creates api_contribution
module for api scopes where the api file is specified.

Test: m nothing && MODULE_BUILD_FROM_SOURCE=false m nothing
--build-from-text-stub and inspect ninja dependency of java_api_library
Bug: 300175323

Change-Id: I74be3b4f1efef7f7d1cb8bd7b6c893b9cef0f370

java/sdk_library.go

@@ -2479,6 +2479,10 @@ func (module *SdkLibraryImport) createInternalModules(mctx android.DefaultableHo
 		if len(scopeProperties.Stub_srcs) > 0 {
 			module.createPrebuiltStubsSources(mctx, apiScope, scopeProperties)
 		}
+
+		if scopeProperties.Current_api != nil {
+			module.createPrebuiltApiContribution(mctx, apiScope, scopeProperties)
+		}
 	}
 
 	javaSdkLibraries := javaSdkLibraries(mctx.Config())
@@ -2534,6 +2538,25 @@ func (module *SdkLibraryImport) createPrebuiltStubsSources(mctx android.Defaulta
 	mctx.CreateModule(PrebuiltStubsSourcesFactory, &props)
 }
 
+func (module *SdkLibraryImport) createPrebuiltApiContribution(mctx android.DefaultableHookContext, apiScope *apiScope, scopeProperties *sdkLibraryScopeProperties) {
+	api_file := scopeProperties.Current_api
+	api_surface := &apiScope.name
+
+	props := struct {
+		Name        *string
+		Api_surface *string
+		Api_file    *string
+		Visibility  []string
+	}{}
+
+	props.Name = proptools.StringPtr(module.stubsSourceModuleName(apiScope) + ".api.contribution")
+	props.Api_surface = api_surface
+	props.Api_file = api_file
+	props.Visibility = []string{"//visibility:override", "//visibility:public"}
+
+	mctx.CreateModule(ApiContributionImportFactory, &props)
+}
+
 // Add the dependencies on the child module in the component deps mutator so that it
 // creates references to the prebuilt and not the source modules.
 func (module *SdkLibraryImport) ComponentDepsMutator(ctx android.BottomUpMutatorContext) {

java/sdk_library_test.go

@@ -74,6 +74,8 @@ func TestJavaSdkLibrary(t *testing.T) {
 		    name: "quuz",
 				public: {
 					jars: ["c.jar"],
+					current_api: "api/current.txt",
+					removed_api: "api/removed.txt",
 				},
 		}
 		java_sdk_library_import {
@@ -173,6 +175,9 @@ func TestJavaSdkLibrary(t *testing.T) {
 		android.AssertDeepEquals(t, "qux exports (optional)", []string{}, optionalSdkLibs)
 	}
 
+	// test if quuz have created the api_contribution module
+	result.ModuleForTests(apiScopePublic.stubsSourceModuleName("quuz")+".api.contribution", "")
+
 	fooDexJar := result.ModuleForTests("foo", "android_common").Rule("d8")
 	// tests if kotlinc generated files are NOT excluded from output of foo.
 	android.AssertStringDoesNotContain(t, "foo dex", fooDexJar.BuildParams.Args["mergeZipsFlags"], "-stripFile META-INF/*.kotlin_module")