Create (API) bp2build converters for droidstubs

- The converter runs for api_bp2build, not bp2build workspace
- Since droidstubs is an internal module created by java_sdk_library,
  the conversion encompasses the latter as well
- Since droidstubs do not have an api_surface attribute, this conversion
  uses naming convention to infer the api_surface represented by the api
  file e.g. *stubs.source -> publicapi, *stubs.source.system -> systemapi)
- Also adds an SdkIntraCore enum to represent the API surface provided
  by one core module to another

There is also ongoing work to check in java_api_contribution modules in
Soong. Once we have that, we can update this converter to operate on
that module type instead

Test: go test ./bp2build
Change-Id: Ia85828e04c738d9ffcc524856d7c3034ee29bbf9

1 files changed, 11 insertions, 3 deletions

diff --git a/android/api_domain.go b/android/api_domain.go
index 3265148ea..bdd4e6fa5 100644
--- a/android/api_domain.go
+++ b/android/api_domain.go
@@ -59,8 +59,14 @@ type apiDomain struct {
 
 type apiDomainProperties struct {
 	// cc library contributions (.h files/.map.txt) of this API domain
-	// This dependency is a no-op in Soong, but the corresponding Bazel target in the bp2build workspace will provide a `CcApiContributionInfo` provider
+	// This dependency is a no-op in Soong, but the corresponding Bazel target in the api_bp2build workspace
+	// will provide a `CcApiContributionInfo` provider
 	Cc_api_contributions []string
+
+	// java library contributions (as .txt) of this API domain
+	// This dependency is a no-op in Soong, but the corresponding Bazel target in the api_bp2build workspace
+	// will provide a `JavaApiContributionInfo` provider
+	Java_api_contributions []string
 }
 
 func ApiDomainFactory() Module {
@@ -102,7 +108,8 @@ func contributionBazelAttributes(ctx TopDownMutatorContext, contributions []stri
 }
 
 type bazelApiDomainAttributes struct {
-	Cc_api_contributions bazel.LabelListAttribute
+	Cc_api_contributions   bazel.LabelListAttribute
+	Java_api_contributions bazel.LabelListAttribute
 }
 
 var _ ApiProvider = (*apiDomain)(nil)
@@ -113,7 +120,8 @@ func (a *apiDomain) ConvertWithApiBp2build(ctx TopDownMutatorContext) {
 		Bzl_load_location: "//build/bazel/rules/apis:api_domain.bzl",
 	}
 	attrs := &bazelApiDomainAttributes{
-		Cc_api_contributions: contributionBazelAttributes(ctx, a.properties.Cc_api_contributions),
+		Cc_api_contributions:   contributionBazelAttributes(ctx, a.properties.Cc_api_contributions),
+		Java_api_contributions: contributionBazelAttributes(ctx, a.properties.Java_api_contributions),
 	}
 	ctx.CreateBazelTargetModule(props, CommonAttributes{
 		Name: ctx.ModuleName(),